Commit Graph

308 Commits

Author SHA1 Message Date
Felipe Contreras
7a97ee1d84 remote: trivial style cleanup
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 09:03:00 -07:00
Ramkumar Ramachandra
9f765ce62f remote.c: introduce branch.<name>.pushremote
This new configuration variable overrides `remote.pushdefault` and
`branch.<name>.remote` for pushes.  When you pull from one
place (e.g. your upstream) and push to another place (e.g. your own
publishing repository), you would want to set `remote.pushdefault` to
specify the remote to push to for all branches, and use this option to
override it for a specific branch.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 10:41:43 -07:00
Ramkumar Ramachandra
224c217163 remote.c: introduce remote.pushdefault
This new configuration variable defines the default remote to push to,
and overrides `branch.<name>.remote` for all branches.  It is useful
in the typical triangular-workflow setup, where the remote you're
fetching from is different from the remote you're pushing to.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 10:41:42 -07:00
Ramkumar Ramachandra
f24f715e05 remote.c: introduce a way to have different remotes for fetch/push
Currently, do_push() in push.c calls remote_get(), which gets the
configured remote for fetching and pushing.  Replace this call with a
call to pushremote_get() instead, a new function that will return the
remote configured specifically for pushing.  This function tries to
work with the string pushremote_name, before falling back to the
codepath of remote_get().  This patch has no visible impact, but
serves to enable future patches to introduce configuration variables
to set pushremote_name.  For example, you can now do the following in
handle_config():

    if (!strcmp(key, "remote.pushdefault"))
       git_config_string(&pushremote_name, key, value);

Then, pushes will automatically go to the remote specified by
remote.pushdefault.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 10:41:42 -07:00
Ramkumar Ramachandra
b4b634352d remote.c: simplify a bit of code using git_config_string()
A small segment where handle_config() parses the branch.remote
configuration variable can be simplified using git_config_string().

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 10:41:41 -07:00
Junio C Hamano
6d37c162bb Merge branch 'jc/nobody-sets-src-peer-ref'
Dead code removal.

* jc/nobody-sets-src-peer-ref:
  match_push_refs(): nobody sets src->peer_ref anymore
2013-04-01 09:05:35 -07:00
Junio C Hamano
55f6fbef3d Merge branch 'jc/push-follow-tag'
The new "--follow-tags" option tells "git push" to push relevant
annotated tags when pushing branches out.

* jc/push-follow-tag:
  push: --follow-tags
  commit.c: use clear_commit_marks_many() in in_merge_bases_many()
  commit.c: add in_merge_bases_many()
  commit.c: add clear_commit_marks_many()
2013-03-25 14:00:41 -07:00
Junio C Hamano
e4e1c54990 Merge branch 'jc/fetch-raw-sha1'
Allows requests to fetch objects at any tip of refs (including
hidden ones).  It seems that there may be use cases even outside
Gerrit (e.g. $gmane/215701).

* jc/fetch-raw-sha1:
  fetch: fetch objects by their exact SHA-1 object names
  upload-pack: optionally allow fetching from the tips of hidden refs
  fetch: use struct ref to represent refs to be fetched
  parse_fetch_refspec(): clarify the codeflow a bit
2013-03-21 14:02:27 -07:00
Junio C Hamano
c2aba155da push: --follow-tags
The new option "--follow-tags" tells "git push" to push annotated
tags that are missing from the other side and that can be reached by
the history that is otherwise pushed out.

For example, if you are using the "simple", "current", or "upstream"
push, you would ordinarily push the history leading to the commit at
your current HEAD and nothing else.  With this option, you would
also push all annotated tags that can be reached from that commit to
the other side.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-05 13:39:46 -08:00
Junio C Hamano
703e8e65c8 match_push_refs(): nobody sets src->peer_ref anymore
In ancient times, we used to disallow the same source ref to be
pushed to more than one places, e.g. "git push there master:master
master:naster" was disallowed.  We later lifted this restriction
with db27ee6392 (send-pack: allow the same source to be pushed
more than once., 2005-08-06) and there no longer is anybody that
sets peer_ref for the source side of the ref list in the push
codepath since then.

Remove one leftover no-op in a loop that iterates over the source
side of ref list (i.e. our local ref) to see if it can/should be
sent to a matching destination ref while skipping ones that is
marked with peer_ref (which will never exist, so we do not skip
anything).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-04 15:01:11 -08:00
Junio C Hamano
6e7b66eebd fetch: fetch objects by their exact SHA-1 object names
Teach "git fetch" to accept an exact SHA-1 object name the user may
obtain out of band on the LHS of a pathspec, and send it on a "want"
message when the server side advertises the allow-tip-sha1-in-want
capability.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07 14:07:53 -08:00
Junio C Hamano
def249911a parse_fetch_refspec(): clarify the codeflow a bit
Most parts of the cascaded if/else if/... checked an allowable
condition but some checked forbidden conditions.  This makes adding
new allowable conditions unnecessarily inconvenient.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07 13:53:59 -08:00
Junio C Hamano
370855e967 Merge branch 'jc/push-reject-reasons'
Improve error and advice messages given locally when "git push"
refuses when it cannot compute fast-forwardness by separating these
cases from the normal "not a fast-forward; merge first and push
again" case.

* jc/push-reject-reasons:
  push: finishing touches to explain REJECT_ALREADY_EXISTS better
  push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
  push: further simplify the logic to assign rejection reason
  push: further clean up fields of "struct ref"
2013-02-04 10:25:04 -08:00
Junio C Hamano
75e5c0dc55 push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
When we push to update an existing ref, if:

 * the object at the tip of the remote is not a commit; or
 * the object we are pushing is not a commit,

it won't be correct to suggest to fetch, integrate and push again,
as the old and new objects will not "merge".  We should explain that
the push must be forced when there is a non-committish object is
involved in such a case.

If we do not have the current object at the tip of the remote, we do
not even know that object, when fetched, is something that can be
merged.  In such a case, suggesting to pull first just like
non-fast-forward case may not be technically correct, but in
practice, most such failures are seen when you try to push your work
to a branch without knowing that somebody else already pushed to
update the same branch since you forked, so "pull first" would work
as a suggestion most of the time.  And if the object at the tip is
not a commit, "pull first" will fail, without making any permanent
damage.  As a side effect, it also makes the error message the user
will get during the next "push" attempt easier to understand, now
the user is aware that a non-commit object is involved.

In these cases, the current code already rejects such a push on the
client end, but we used the same error and advice messages as the
ones used when rejecting a non-fast-forward push, i.e. pull from
there and integrate before pushing again.

Introduce new rejection reasons and reword the messages
appropriately.

[jc: with help by Peff on message details]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 14:37:23 -08:00
Junio C Hamano
0f4d498dbe push: further simplify the logic to assign rejection reason
First compute the reason why this push would fail if done without
"--force", and then fail it by assigning that reason when the push
was not forced (or if there is no reason to require force, allow it
to succeed).

Record the fact that the push was forced in the forced_update field
only when the push would have failed without the option.

The code becomes shorter, less repetitive and easier to read this
way, especially given that the set of rejection reasons will be
extended in a later patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 14:37:22 -08:00
Junio C Hamano
5ece083fc7 push: further clean up fields of "struct ref"
The "nonfastforward" and "update" fields are only used while
deciding what value to assign to the "status" locally in a single
function.  Remove them from the "struct ref".

The "requires_force" field is not used to decide if the proposed
update requires a --force option to succeed, or to record such a
decision made elsewhere.  It is used by status reporting code that
the particular update was "forced".  Rename it to "forced_update",
and move the code to assign to it around to further clarify how it
is used and what it is used for.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 14:37:17 -08:00
Junio C Hamano
d82dd26964 Merge branch 'cr/push-force-tag-update'
Regression fix to stop "git push" complaining "target ref already
exists", when it is not the real reason the command rejected the
request (e.g. non-fast-forward).

* cr/push-force-tag-update:
  push: fix "refs/tags/ hierarchy cannot be updated without --force"
2013-01-23 21:16:49 -08:00
Junio C Hamano
256b9d70a4 push: fix "refs/tags/ hierarchy cannot be updated without --force"
When pushing to update a branch with a commit that is not a
descendant of the commit at the tip, a wrong message "already
exists" was given, instead of the correct "non-fast-forward", if we
do not have the object sitting in the destination repository at the
tip of the ref we are updating.

The primary cause of the bug is that the check in a new helper
function is_forwardable() assumed both old and new objects are
available and can be checked, which is not always the case.

The way the caller uses the result of this function is also wrong.
If the helper says "we do not want to let this push go through", the
caller unconditionally translates it into "we blocked it because the
destination already exists", which is not true at all in this case.

Fix this by doing these three things:

 * Remove unnecessary not_forwardable from "struct ref"; it is only
   used inside set_ref_status_for_push();

 * Make "refs/tags/" the only hierarchy that cannot be replaced
   without --force;

 * Remove the misguided attempt to force that everything that
   updates an existing ref has to be a commit outside "refs/tags/"
   hierarchy.

The policy last one tried to implement may later be resurrected and
extended to ensure fast-forwardness (defined as "not losing
objects", extending from the traditional "not losing commits from
the resulting history") when objects that are not commit are
involved (e.g. an annotated tag in hierarchies outside refs/tags),
but such a logic belongs to "is this a fast-forward?" check that is
done by ref_newer(); is_forwardable(), which is now removed, was not
the right place to do so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 13:03:57 -08:00
Junio C Hamano
c039f35b8a Merge branch 'jc/fetch-ignore-symref' into maint
"git fetch --mirror" and fetch that uses other forms of refspec with
wildcard used to attempt to update a symbolic ref that match the
wildcard on the receiving end, which made little sense (the real ref
that is pointed at by the symbolic ref would be updated anyway).

Symbolic refs no longer are affected by such a fetch.

* jc/fetch-ignore-symref:
  fetch: ignore wildcarded refspecs that update local symbolic refs
2013-01-11 16:45:44 -08:00
Junio C Hamano
245d6d0064 Merge branch 'jc/fetch-ignore-symref'
Avoid false error from an attempt to update local symbolic ref via
fetch.

* jc/fetch-ignore-symref:
  fetch: ignore wildcarded refspecs that update local symbolic refs
2013-01-05 23:41:37 -08:00
Junio C Hamano
9a2c83d24c Merge branch 'cr/push-force-tag-update'
Require "-f" for push to update a tag, even if it is a fast-forward.

* cr/push-force-tag-update:
  push: allow already-exists advice to be disabled
  push: rename config variable for more general use
  push: cleanup push rules comment
  push: clarify rejection of update to non-commit-ish
  push: require force for annotated tags
  push: require force for refs under refs/tags/
  push: flag updates that require force
  push: keep track of "update" state separately
  push: add advice for rejected tag reference
  push: return reject reasons as a bitset
2013-01-05 23:41:34 -08:00
Junio C Hamano
f8fb971eac fetch: ignore wildcarded refspecs that update local symbolic refs
In a repository cloned from somewhere else, you typically have a
symbolic ref refs/remotes/origin/HEAD pointing at the 'master'
remote-tracking ref that is next to it.  When fetching into such a
repository with "git fetch --mirror" from another repository that
was similarly cloned, the implied wildcard refspec refs/*:refs/*
will end up asking to update refs/remotes/origin/HEAD with the
object at refs/remotes/origin/HEAD at the remote side, while asking
to update refs/remotes/origin/master the same way.  Depending on the
order the two updates happen, the latter one would find that the
value of the ref before it is updated has changed from what the code
expects.

When the user asks to update the underlying ref via the symbolic ref
explicitly without using a wildcard refspec, e.g. "git fetch $there
refs/heads/master:refs/remotes/origin/HEAD", we should still let him
do so, but when expanding wildcard refs, it will result in a more
intuitive outcome if we simply ignore local symbolic refs.

As the purpose of the symbolic ref refs/remotes/origin/HEAD is to
follow the ref it points at (e.g. refs/remotes/origin/master), its
value would change when the underlying ref is updated.

Earlier commit da3efdb (receive-pack: detect aliased updates which
can occur with symrefs, 2010-04-19) fixed a similar issue for "git
push".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-11 14:53:32 -08:00
Junio C Hamano
90ae9f259e Merge branch 'mm/status-push-pull-advise'
Finishing touch to allow the new advice message squelched
with an advice.* configuration variable.

* mm/status-push-pull-advise:
  status: respect advice.statusHints for ahead/behind advice
2012-12-03 09:28:43 -08:00
Jeff King
491e3075a2 status: respect advice.statusHints for ahead/behind advice
If the user has unset advice.statusHints, we already
suppress the "use git reset to..." hints in each stanza. The
new "use git push to publish..." hint is the same type of
hint. Let's respect statusHints for it, rather than making
the user set yet another advice flag.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03 09:10:47 -08:00
Chris Rorvick
a272b2896d push: cleanup push rules comment
Rewrite to remove inter-dependencies amongst the rules.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03 08:02:33 -08:00
Chris Rorvick
80054cf9d5 push: clarify rejection of update to non-commit-ish
Pushes must already (by default) update to a commit-ish due to the fast-
forward check in set_ref_status_for_push().  But rejecting for not being
a fast-forward suggests the situation can be resolved with a merge.
Flag these updates (i.e., to a blob or a tree) as not forwardable so the
user is presented with more appropriate advice.

While updating *from* a tag object is potentially destructive, updating
*to* a tag is not.  Additionally, a push to the refs/tags/ hierarchy is
already excluded from fast-forwarding, and refs/heads/ is protected from
anything but commit objects by a check in write_ref_sha1().  Thus
someone fast-forwarding to a tag is probably not doing so by accident.
Since updating to a tag is benign and unlikely to cause confusion, allow
it in case someone finds the behavior useful.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:45:13 -08:00
Chris Rorvick
40eff17999 push: require force for annotated tags
Do not allow fast-forwarding of references that point to a tag object.
Updating from a tag is potentially destructive since it would likely
leave the tag dangling.  Disallowing updates to a tag also makes sense
semantically and is consistent with the behavior of lightweight tags.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:44:49 -08:00
Chris Rorvick
dbfeddb12e push: require force for refs under refs/tags/
References are allowed to update from one commit-ish to another if the
former is an ancestor of the latter.  This behavior is oriented to
branches which are expected to move with commits.  Tag references are
expected to be static in a repository, though, thus an update to
something under refs/tags/ should be rejected unless the update is
forced.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:44:34 -08:00
Chris Rorvick
8c5f6f717d push: flag updates that require force
Add a flag for indicating an update to a reference requires force.
Currently the `nonfastforward` flag is used for this when generating the
status message.  A separate flag insulates dependent logic from the
details of set_ref_status_for_push().

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:44:15 -08:00
Chris Rorvick
ffe81ef2ac push: keep track of "update" state separately
If the reference exists on the remote and it is not being removed, then
mark as an update.  This is in preparation for handling tags (lightweight
and annotated) exceptionally.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:43:28 -08:00
Chris Rorvick
b24e6047a8 push: add advice for rejected tag reference
Advising the user to fetch and merge only makes sense if the rejected
reference is a branch.  If none of the rejections are for branches, just
tell the user the reference already exists.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:39:50 -08:00
Junio C Hamano
b893e88191 Merge branch 'mm/status-push-pull-advise'
* mm/status-push-pull-advise:
  status: add advice on how to push/pull to tracking branch
2012-11-28 13:42:30 -08:00
Matthieu Moy
c190ced600 status: add advice on how to push/pull to tracking branch
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-16 11:24:11 -08:00
Junio C Hamano
7115d3cc2b Merge branch 'jc/maint-fetch-tighten-refname-check'
For a fetch refspec (or the result of applying wildcard on one), we
always want the RHS to map to something inside "refs/" hierarchy.

This was split out from discarded jc/maint-push-refs-all topic.

* jc/maint-fetch-tighten-refname-check:
  get_fetch_map(): tighten checks on dest refs
2012-11-15 10:22:54 -08:00
Junio C Hamano
5c08c1f23a get_fetch_map(): tighten checks on dest refs
The code to check the refname we store the fetched result locally did not
bother checking the first 5 bytes of it, presumably assuming that it
always begin with "refs/".  For a fetch refspec (or the result of applying
wildcard on one), we always want the RHS to map to something inside
"refs/" hierarchy, so let's spell that rule out in a more explicit way.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-19 16:12:45 -07:00
Junio C Hamano
f06d47e7e0 Merge branch 'jk/push-delete-ref-error-message'
The error message from "git push $there :bogo" mentioned we tried
and failed to guess what ref is being deleted based on the LHS of
the refspec, which we don't.

# By Jeff King
* jk/push-delete-ref-error-message:
  push: don't guess at qualifying remote refs on deletion
2012-07-13 21:22:12 -07:00
Jeff King
5742c82ba7 push: don't guess at qualifying remote refs on deletion
When we try to push a ref and the right-hand side of the
refspec does not find a match, we try to create it. If it is
not fully qualified, we try to guess where it would go in
the refs hierarchy based on the left-hand source side. If
the source side is not a ref, then we give up and give a
long explanatory message.

For deletions, however, this doesn't make any sense. We
would never want to create on the remote side, and if an
unqualified ref can't be matched, it is simply an error. The
current code handles this already because the left-hand side
is empty, and therefore does not give us a hint as to where
the right-hand side should go, and we properly error out.
Unfortunately, the error message is the long "we tried to
qualify this, but the source side didn't let us guess"
message, which is quite confusing.

Instead, we can just be more succinct and say "we can't
delete this because we couldn't find it". So before:

  $ git push origin :bogus
  error: unable to push to unqualified destination: bogus
  The destination refspec neither matches an existing ref on the remote nor
  begins with refs/, and we are unable to guess a prefix based on the source ref.
  error: failed to push some refs to '$URL'

and now:

  $ git push origin :bogus
  error: unable to delete 'bogus': remote ref does not exist
  error: failed to push some refs to '$URL'

It is tempting to also catch a fully-qualified ref like
"refs/heads/bogus" and generate the same error message.
However, that currently does not error out at all, and
instead gets sent to the remote side, which typically
generates a warning:

  $ git push origin:refs/heads/bogus
  remote: warning: Deleting a non-existent ref.
  To $URL
   - [deleted]         bogus

While it would be nice to catch this error early, a
client-side error would mean aborting the push entirely and
changing push's exit code. For example, right now you can
do:

  $ git push origin refs/heads/foo refs/heads/bar

and end up in a state where "foo" and "bar" are deleted,
whether both of them currently exist or not (and see an
error only if we actually failed to contact the server).
Generating an error would cause a regression for this use
case.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-03 12:29:42 -07:00
Jeff King
ed81c76bc3 add sorting infrastructure for list refs
Since we store lists of refs as linked lists, we can use
llist_mergesort to efficiently sort them.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-22 13:31:03 -07:00
Felipe Contreras
6ddba5e241 push: add '--prune' option
When pushing groups of refs to a remote, there is no simple way to remove
old refs that still exist at the remote that is no longer updated from us.
This will allow us to remove such refs from the remote.

With this change, running this command

 $ git push --prune remote refs/heads/*:refs/remotes/laptop/*

removes refs/remotes/laptop/foo from the remote if we do not have branch
"foo" locally anymore.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-22 18:17:39 -08:00
Felipe Contreras
676552464a remote: refactor code into alloc_delete_ref()
Will be useful in next patches. No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-22 16:08:05 -08:00
Felipe Contreras
db70a04cbb remote: reorganize check_pattern_match()
The function match_name_with_pattern() is called twice, once to see if a
pattern matches with the name, and again to learn what the matched pattern
maps the name to.  Since check_pattern_match() is only used in one place,
we can just reorganize it to make a single call and fetch the values at
the same time.

This changes the meaning of check_pattern_match() that used to check which
pattern in the array of refspecs matched the given ref, to return the name
of the remote ref the given ref is mapped to.

Rename it to get_ref_match() which actually describes more closely what
it's actually doing now.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-22 16:01:50 -08:00
Felipe Contreras
b1d8b1f3f1 remote: use a local variable in match_push_refs()
So that we can reuse src later on. No functional changes.

Will be useful in next patches.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-22 15:58:10 -08:00
Jiang Xin
8a5b749428 i18n: format_tracking_info "Your branch is behind" message
Function format_tracking_info in remote.c is called by
wt_status_print_tracking in wt-status.c, which will print
branch tracking message in git-status. git-checkout also
show these messages through it's report_tracking function.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-01 18:09:17 -08:00
Nguyễn Thái Ngọc Duy
8cad4744ee Rename resolve_ref() to resolve_ref_unsafe()
resolve_ref() may return a pointer to a shared buffer and can be
overwritten by the next resolve_ref() calls. Callers need to
pay attention, not to keep the pointer when the next call happens.

Rename with "_unsafe" suffix to warn developers (or reviewers) before
introducing new call sites.

This patch is generated using the following command

git grep -l 'resolve_ref(' -- '*.[ch]'|xargs sed -i 's/resolve_ref(/resolve_ref_unsafe(/g'

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13 09:39:46 -08:00
Nguyễn Thái Ngọc Duy
c689332391 Convert many resolve_ref() calls to read_ref*() and ref_exists()
resolve_ref() may return a pointer to a static buffer, which is not
safe for long-term use because if another resolve_ref() call happens,
the buffer may be changed.  Many call sites though do not care about
this buffer. They simply check if the return value is NULL or not.

Convert all these call sites to new wrappers to reduce resolve_ref()
calls from 57 to 34. If we change resolve_ref() prototype later on
to avoid passing static buffer out, this helps reduce changes.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-13 12:21:06 -08:00
Junio C Hamano
9c0c09f791 Merge branch 'cn/fetch-prune'
* cn/fetch-prune:
  fetch: treat --tags like refs/tags/*:refs/tags/* when pruning
  fetch: honor the user-provided refspecs when pruning refs
  remote: separate out the remote_find_tracking logic into query_refspecs
  t5510: add tests for fetch --prune
  fetch: free all the additional refspecs

Conflicts:
	remote.c
2011-10-26 16:16:29 -07:00
Junio C Hamano
470bbbc4dc Merge branch 'jc/match-refs-clarify'
* jc/match-refs-clarify:
  rename "match_refs()" to "match_push_refs()"
  send-pack: typofix error message
2011-10-21 16:04:35 -07:00
Carlos Martín Nieto
ed43de6ec3 fetch: honor the user-provided refspecs when pruning refs
If the user gave us refspecs on the command line, we should use those
when deciding whether to prune a ref instead of relying on the
refspecs in the config.

Previously, running

    git fetch --prune origin refs/heads/master:refs/remotes/origin/master

would delete every other ref under the origin namespace because we
were using the refspec to filter the available refs but using the
configured refspec to figure out if a ref had been deleted on the
remote. This is clearly the wrong thing to do.

Change prune_refs and get_stale_heads to simply accept a list of
references and a list of refspecs. The caller of either function needs
to decide what refspecs should be used to decide whether a ref is
stale.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-15 21:56:13 -07:00
Carlos Martín Nieto
c500352e0d remote: separate out the remote_find_tracking logic into query_refspecs
Move the body of remote_find_tracking() to a new helper query_refspecs()
that finds a refspec that matches and applies the transformation, but
explicitly takes the list of refspecs, and make remote_find_tracking() a
thin wrapper of it.

Make apply_refspecs() also use query_refspecs().

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-15 21:55:05 -07:00
Michael Haggerty
c28cce55e0 remote: use xstrdup() instead of strdup()
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05 13:45:31 -07:00
Michael Haggerty
8d9c50105f Change check_ref_format() to take a flags argument
Change check_ref_format() to take a flags argument that indicates what
is acceptable in the reference name (analogous to "git
check-ref-format"'s "--allow-onelevel" and "--refspec-pattern").  This
is more convenient for callers and also fixes a failure in the test
suite (and likely elsewhere in the code) by enabling "onelevel" and
"refspec-pattern" to be allowed independently of each other.

Also rename check_ref_format() to check_refname_format() to make it
obvious that it deals with refnames rather than references themselves.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05 13:45:29 -07:00
Junio C Hamano
29753cddc8 rename "match_refs()" to "match_push_refs()"
Yes, there is a warning that says the function is only used by push in big
red letters in front of this function, but it didn't say a more important
thing it should have said: what the function is for and what it does.

Rename it and document it to avoid future confusion.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-12 16:41:53 -07:00
Jeff King
59a5775770 make copy_ref globally available
This is a useful function, and we have already made the
similar alloc_ref and copy_ref_list available.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-07 16:07:07 -07:00
Jeff King
61adfd3097 consider only branches in guess_remote_head
The guess_remote_head function tries to figure out where a
remote's HEAD is pointing by comparing the sha1 of the
remote's HEAD with the sha1 of various refs found on the
remote. However, we were too liberal in matching refs, and
would match tags or remote tracking branches, even though
these things could not possibly be referenced by the HEAD
symbolic ref (since git will detach when checking them out).

As a result, a clone of a remote repository with a detached
HEAD might write "refs/tags/*" into our local HEAD, which is
bogus. The resulting HEAD should be detached.

The other related code path is remote.c's get_head_names()
(which is used for, among other things, "set-head -a"). This was
not affected, however, as that function feeds only refs from
refs/heads to guess_remote_head.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-05 17:53:10 -07:00
Matthieu Moy
8b3f3f84b2 Change "tracking branch" to "remote-tracking branch"
One more step towards consistancy. We change the documentation and the C
code in a single patch, since the only instances in the C code are in
comment and usage strings.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-03 09:20:41 -07:00
Thiago Farina
183113a5ca string_list: Add STRING_LIST_INIT macro and make use of it.
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-05 11:47:57 -07:00
Junio C Hamano
a53deac89e Merge branch 'jp/string-list-api-cleanup'
* jp/string-list-api-cleanup:
  string_list: Fix argument order for string_list_append
  string_list: Fix argument order for string_list_lookup
  string_list: Fix argument order for string_list_insert_at_index
  string_list: Fix argument order for string_list_insert
  string_list: Fix argument order for for_each_string_list
  string_list: Fix argument order for print_string_list
2010-06-30 11:55:38 -07:00
Julian Phillips
1d2f80fa79 string_list: Fix argument order for string_list_append
Update the definition and callers of string_list_append to use the
string_list as the first argument.  This helps make the string_list
API easier to use by being more consistent.

Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-27 10:06:52 -07:00
Julian Phillips
e8c8b7139c string_list: Fix argument order for string_list_lookup
Update the definition and callers of string_list_lookup to use the
string_list as the first argument.  This helps make the string_list
API easier to use by being more consistent.

Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-27 10:06:51 -07:00
Julian Phillips
78a395d371 string_list: Fix argument order for string_list_insert
Update the definition and callers of string_list_insert to use the
string_list as the first argument.  This helps make the string_list
API easier to use by being more consistent.

Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-27 10:06:51 -07:00
Junio C Hamano
8d676d85f7 Merge branch 'gv/portable'
* gv/portable:
  test-lib: use DIFF definition from GIT-BUILD-OPTIONS
  build: propagate $DIFF to scripts
  Makefile: Tru64 portability fix
  Makefile: HP-UX 10.20 portability fixes
  Makefile: HPUX11 portability fixes
  Makefile: SunOS 5.6 portability fix
  inline declaration does not work on AIX
  Allow disabling "inline"
  Some platforms lack socklen_t type
  Make NO_{INET_NTOP,INET_PTON} configured independently
  Makefile: some platforms do not have hstrerror anywhere
  git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
  test_cmp: do not use "diff -u" on platforms that lack one
  fixup: do not unconditionally disable "diff -u"
  tests: use "test_cmp", not "diff", when verifying the result
  Do not use "diff" found on PATH while building and installing
  enums: omit trailing comma for portability
  Makefile: -lpthread may still be necessary when libc has only pthread stubs
  Rewrite dynamic structure initializations to runtime assignment
  Makefile: pass CPPFLAGS through to fllow customization

Conflicts:
	Makefile
	wt-status.h
2010-06-21 06:02:44 -07:00
Junio C Hamano
92a75a391e Merge branch 'maint'
* maint:
  Change C99 comments to old-style C comments
2010-06-07 22:15:31 -07:00
Tor Arntsen
2543d9b609 Change C99 comments to old-style C comments
Signed-off-by: Tor Arntsen <tor@spacetec.no>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-07 15:50:21 -07:00
Gary V. Vaughan
66dbfd55e3 Rewrite dynamic structure initializations to runtime assignment
Unfortunately, there are still plenty of production systems with
vendor compilers that choke unless all compound declarations can be
determined statically at compile time, for example hpux10.20 (I can
provide a comprehensive list of our supported platforms that exhibit
this problem if necessary).

This patch simply breaks apart any compound declarations with dynamic
initialisation expressions, and moves the initialisation until after
the last declaration in the same block, in all the places necessary to
have the offending compilers accept the code.

Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-31 16:59:26 -07:00
Samuel Tardieu
944163a4bd Honor "tagopt = --tags" configuration option
If the "tagopt = --tags" option of a remote is set, all tags
will be fetched as in "git fetch --tags".

Signed-off-by: Samuel Tardieu <sam@rfc1149.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-19 16:34:49 -07:00
Tay Ray Chuan
20e8b465a5 refactor ref status logic for pushing
Move the logic that detects up-to-date and non-fast-forward refs to a
new function in remote.[ch], set_ref_status_for_push().

Make transport_push() invoke set_ref_status_for_push() before invoking
the push_refs() implementation. (As a side-effect, the push_refs()
implementation in transport-helper.c now knows of non-fast-forward
pushes.)

Removed logic for detecting up-to-date refs from the push_refs()
implementation in transport-helper.c, as transport_push() has already
done so for it.

Make cmd_send_pack() invoke set_ref_status_for_push() before invoking
send_pack(), as transport_push() can't do it for send_pack() here.

Mark the test on the return status of non-fast-forward push to fail.
Git now exits with success, as transport.c::transport_push() does not
check for refs with status REF_STATUS_REJECT_NONFASTFORWARD nor does it
indicate rejected pushes with its return value.

Mark the test for ref status to succeed. As mentioned earlier, refs
might be marked as non-fast-forwards, triggering the push status
printing mechanism in transport.c.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-09 23:34:10 -08:00
Junio C Hamano
e74f43f9b7 Merge branch 'sr/vcs-helper'
* sr/vcs-helper:
  tests: handle NO_PYTHON setting
  builtin-push: don't access freed transport->url
  Add Python support library for remote helpers
  Basic build infrastructure for Python scripts
  Allow helpers to report in "list" command that the ref is unchanged
  Fix various memory leaks in transport-helper.c
  Allow helper to map private ref names into normal names
  Add support for "import" helper command
  Allow specifying the remote helper in the url
  Add a config option for remotes to specify a foreign vcs
  Allow fetch to modify refs
  Use a function to determine whether a remote is valid
  Allow programs to not depend on remotes having urls
  Fix memory leak in helper method for disconnect

Conflicts:
	Documentation/git-remote-helpers.txt
	Makefile
	builtin-ls-remote.c
	builtin-push.c
	transport-helper.c
2009-12-26 14:03:16 -08:00
Junio C Hamano
65c042d44d Merge branch 'bg/fetch-multi'
* bg/fetch-multi:
  Re-implement 'git remote update' using 'git fetch'
  builtin-fetch: add --dry-run option
  builtin-fetch: add --prune option
  teach warn_dangling_symref to take a FILE argument
  remote: refactor some logic into get_stale_heads()
  Add missing test for 'git remote update --prune'
  Add the configuration option skipFetchAll
  Teach the --multiple option to 'git fetch'
  Teach the --all option to 'git fetch'
2009-11-23 00:03:15 -08:00
Daniel Barkalow
72ff894308 Allow helper to map private ref names into normal names
This allows a helper to say that, when it handles "import
refs/heads/topic", the script it outputs will actually write to
refs/svn/origin/branches/topic; therefore, transport-helper should
read it from the latter location after git-fast-import completes.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-17 21:45:44 -08:00
Daniel Barkalow
c578f51d52 Add a config option for remotes to specify a foreign vcs
If this is set, the url is not required, and the transport always uses
a helper named "git-remote-<value>".

It is a separate configuration option in order to allow a sensible
configuration for foreign systems which either have no meaningful urls
for repositories or which require urls that do not specify the system
used by the repository at that location. However, this only affects
how the name of the helper is determined, not anything about the
interaction with the helper, and the contruction is such that, if the
foreign scm does happen to use a co-named url method, a url with that
method may be used directly.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-17 21:45:44 -08:00
Daniel Barkalow
0a4da29dd8 Use a function to determine whether a remote is valid
Currently, it only checks url, but it will allow other things in the future.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-17 21:45:44 -08:00
Julian Phillips
95c96d48e6 remote: fix use-after-free error detected by glibc in ref_remove_duplicates
In ref_remove_duplicates, when we encounter a duplicate and remove it
from the list we need to make sure that the prev pointer stays
pointing at the last entry and also skip over adding the just freed
entry to the string_list.

Previously fetch could crash with:
*** glibc detected *** git: corrupted double-linked list: ...

Also add a test to try and catch problems with duplicate removal in
the future.

Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-14 16:03:06 -08:00
Jay Soffian
f2ef6075c9 remote: refactor some logic into get_stale_heads()
Move the logic in builtin-remote.c which determines which local heads are stale
to remote.c so it can be used by other builtins.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10 01:01:22 -08:00
Björn Gustavsson
7cc91a2f71 Add the configuration option skipFetchAll
Implement the configuration skipFetchAll option to allow
certain remotes to be skipped when doing 'git fetch --all' and
'git remote update'. The existing skipDefaultUpdate variable
is still honored (by 'git fetch --all' and 'git remote update').
(If both are set in the configuration file with different values,
the value of the last occurrence will be used.)

Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10 01:01:07 -08:00
Julian Phillips
73cf0822b2 remote: Make ref_remove_duplicates faster for large numbers of refs
The ref_remove_duplicates function was very slow at dealing with very
large numbers of refs.  This is because it was using a linear search
through all remaining refs to find any duplicates of the current ref.

Rewriting it to use a string list to keep track of which refs have
already been seen and removing duplicates when they are found is much
more efficient.

Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-27 23:38:43 -07:00
Josh Triplett
1c2eafb89b Add url.<base>.pushInsteadOf: URL rewriting for push only
This configuration option allows systematically rewriting fetch-only URLs
to push-capable URLs when used with push.  For instance:

[url "ssh://example.org/"]
    pushInsteadOf = "git://example.org/"

This will allow clones of "git://example.org/path/to/repo" to subsequently
push to "ssh://example.org/path/to/repo", without manually configuring
pushurl for that remote.

Includes documentation for the new option, bash completion updates, and
test cases (both that pushInsteadOf applies to push, that it does not
apply to fetch, and that it is ignored when pushURL is already defined).

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-08 01:18:46 -07:00
Josh Triplett
d071d94296 Wrap rewrite globals in a struct in preparation for adding another set
remote.c has a global set of URL rewrites, accessed by alias_url and
make_rewrite.  Wrap them in a new "struct rewrites", passed to alias_url
and make_rewrite.  This allows adding other sets of rewrites.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-07 12:58:45 -07:00
Brian Gianforcaro
eeefa7c90e Style fixes, add a space after if/for/while.
The majority of code in core git appears to use a single
space after if/for/while. This is an attempt to bring more
code to this standard. These are entirely cosmetic changes.

Signed-off-by: Brian Gianforcaro <b.gianfo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-31 23:26:28 -07:00
Junio C Hamano
864cd94917 Merge branch 'cb/maint-fetch-refspec-wo-dst'
* cb/maint-fetch-refspec-wo-dst:
  fetch: do not create ref from empty name
2009-07-06 09:39:38 -07:00
Linus Torvalds
2af202be3d Fix various sparse warnings in the git source code
There are a few remaining ones, but this fixes the trivial ones. It boils
down to two main issues that sparse complains about:

 - warning: Using plain integer as NULL pointer

   Sparse doesn't like you using '0' instead of 'NULL'. For various good
   reasons, not the least of which is just the visual confusion. A NULL
   pointer is not an integer, and that whole "0 works as NULL" is a
   historical accident and not very pretty.

   A few of these remain: zlib is a total mess, and Z_NULL is just a 0.
   I didn't touch those.

 - warning: symbol 'xyz' was not declared. Should it be static?

   Sparse wants to see declarations for any functions you export. A lack
   of a declaration tends to mean that you should either add one, or you
   should mark the function 'static' to show that it's in file scope.

   A few of these remain: I only did the ones that should obviously just
   be made static.

That 'wt_status_submodule_summary' one is debatable. It has a few related
flags (like 'wt_status_use_color') which _are_ declared, and are used by
builtin-commit.c. So maybe we'd like to export it at some point, but it's
not declared now, and not used outside of that file, so 'static' it is in
this patch.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-20 21:52:55 -07:00
Junio C Hamano
deded16d15 Merge branch 'mg/pushurl'
* mg/pushurl:
  avoid NULL dereference on failed malloc
  builtin-remote: Make "remote -v" display push urls
  builtin-remote: Show push urls as well
  technical/api-remote: Describe new struct remote member pushurl
  t5516: Check pushurl config setting
  Allow push and fetch urls to be different
2009-06-20 21:47:27 -07:00
Clemens Buchacher
3eb9699733 fetch: do not create ref from empty name
Previously, the refspec "<src>:" would be expanded to
"<src>:refs/heads/". Instead, treat an empty <dst> just like refspecs
without a colon.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18 09:55:34 -07:00
Junio C Hamano
57c57a97e1 Merge branch 'cb/match_refs_internal_tail'
* cb/match_refs_internal_tail:
  match_refs: search ref list tail internally
2009-06-13 12:47:52 -07:00
Michael J Gruber
203462347f Allow push and fetch urls to be different
This introduces a config setting remote.$remotename.pushurl which is
used for pushes only. If absent remote.$remotename.url is used for
pushes and fetches as before.
This is useful, for example, in order to do passwordless fetches
(remote update) over the git transport but pushes over ssh.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-09 23:46:47 -07:00
Clemens Buchacher
6d2bf96e55 match_refs: search ref list tail internally
Avoid code duplication by moving list tail search to match_refs().

This does not change the semantics, except for http-push, which now inserts
to the front of the ref list in order to get rid of the global remote_tail.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-01 19:41:24 -07:00
Junio C Hamano
c9a88deede Merge branch 'mg/track'
* mg/track:
  Fix behavior with non-commit upstream references
  Test tracking of non-commit upstreams
2009-05-23 01:44:00 -07:00
Michael J Gruber
57ffc5f85a Fix behavior with non-commit upstream references
stat_tracking_info() assumes that upstream references (as specified by
--track or set up automatically) are commits. By calling lookup_commit()
on them, create_objects() creates objects for them with type commit no
matter what their real type is; this disturbs lookup_tag() later on in the
call sequence, leading to git status, git branch -v  and git checkout
erroring out.

Fix this by using lookup_commit_reference() instead so that (annotated)
tags can be used as upstream references.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-14 09:43:54 -07:00
Johannes Sixt
cd294bc3f3 remote.c: do not trigger remote.<name>.<var> codepath for two-level names
If the config file contains a section like this:

    [remote]
            default = foo

(it should be '[remotes]') then commands like

    git status
    git checkout
    git branch -v

fail even though they are not obviously related to remotes. (These
commands write "ahead, behind" information and, therefore, access the
per-remote information).

Unknown configuration keys should be ignored, not trigger errors.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-24 01:29:28 -07:00
Junio C Hamano
8fbf879ed7 Revert "stat_tracking_info(): only count real commits"
This reverts commit 19de5d6913.
It produces a misleading output to decide if a merge can fast-forward.
2009-04-21 16:33:20 -07:00
Junio C Hamano
a9b772a011 Merge branch 'bw/short-ref-strict'
* bw/short-ref-strict:
  remote.c: use shorten_unambiguous_ref
  rev-parse: --abbrev-ref option to shorten ref name
  for-each-ref: utilize core.warnAmbiguousRefs for :short-format
  shorten_unambiguous_ref(): add strict mode
2009-04-17 21:42:12 -07:00
Michael J Gruber
45972ffbed remote.c: use shorten_unambiguous_ref
Use the new shorten_unambiguous_ref() for simplifying the output of
upstream branch names. This affects status and checkout.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-17 20:53:19 -07:00
Nguyễn Thái Ngọc Duy
55f0566f6d get_local_heads(): do not return random pointer if there is no head
it's silly to do this:

mkdir foo && cd foo && git init && git push somewhere.git

but segfault should not happen even in that case.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-17 20:48:32 -07:00
Junio C Hamano
c276857ee2 Merge branch 'fg/remote-prune'
* fg/remote-prune:
  add tests for remote groups
  git remote update: Fallback to remote if group does not exist
  remote: New function remote_is_configured()
  git remote update: Report error for non-existing groups
  git remote update: New option --prune
  builtin-remote.c: Split out prune_remote as a separate function.
2009-04-12 16:46:41 -07:00
Finn Arne Gangstad
9a23ba3375 remote: New function remote_is_configured()
Previously, there was no easy way to check for the existence of a
configured remote. remote_get for example would always create the remote
"on demand".

This new function returns 1 if the remote is configured, 0 otherwise.

Signed-off-by: Finn Arne Gangstad <finnag@pvv.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-07 21:51:59 -07:00
Junio C Hamano
ccc852c377 Merge branch 'mg/tracked-local-branches'
* mg/tracked-local-branches:
  Make local branches behave like remote branches when --tracked
  Test for local branches being followed with --track
2009-04-06 00:42:31 -07:00
Junio C Hamano
988d9fd8a4 Merge branch 'kb/tracking-count-no-merges'
* kb/tracking-count-no-merges:
  stat_tracking_info(): only count real commits
2009-04-01 22:27:43 -07:00
Michael J Gruber
5e6e2b487e Make local branches behave like remote branches when --tracked
This makes sure that local branches, when followed using --track, behave
the same as remote ones (e.g. differences being reported by git status
and git checkout). This fixes 1 known failure.

The fix is done within branch_get(): The first natural candidate,
namely remote_find_tracking(), does not have all the necessary info
because in general there is no remote struct for '.', and we don't want
one because it would show up in other places as well.

branch_get(), on the other hand, has access to merge_names[] (in
addition to merge[]) and therefore can set up the followed branch
easily.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-01 15:48:30 -07:00
Junio C Hamano
8e50ada553 Merge branch 'xx/db-refspec-vs-js-remote'
* xx/db-refspec-vs-js-remote:
  Support '*' in the middle of a refspec
  Keep '*' in pattern refspecs
  Use the matching function to generate the match results
  Use a single function to match names against patterns
  Make clone parse the default refspec with the normal code
2009-03-20 14:30:00 -07:00
Junio C Hamano
9d5b05c6d5 Merge branch 'db/maint-missing-origin'
* db/maint-missing-origin:
  Remove total confusion from git-fetch and git-push
  Give error when no remote is configured
2009-03-17 18:58:41 -07:00
Junio C Hamano
ca8a36e6e0 Merge branch 'js/remote-improvements'
* js/remote-improvements: (23 commits)
  builtin-remote.c: no "commented out" code, please
  builtin-remote: new show output style for push refspecs
  builtin-remote: new show output style
  remote: make guess_remote_head() use exact HEAD lookup if it is available
  builtin-remote: add set-head subcommand
  builtin-remote: teach show to display remote HEAD
  builtin-remote: fix two inconsistencies in the output of "show <remote>"
  builtin-remote: make get_remote_ref_states() always populate states.tracked
  builtin-remote: rename variables and eliminate redundant function call
  builtin-remote: remove unused code in get_ref_states
  builtin-remote: refactor duplicated cleanup code
  string-list: new for_each_string_list() function
  remote: make match_refs() not short-circuit
  remote: make match_refs() copy src ref before assigning to peer_ref
  remote: let guess_remote_head() optionally return all matches
  remote: make copy_ref() perform a deep copy
  remote: simplify guess_remote_head()
  move locate_head() to remote.c
  move duplicated ref_newer() to remote.c
  move duplicated get_local_heads() to remote.c
  ...

Conflicts:
	builtin-clone.c
2009-03-17 18:55:06 -07:00
Junio C Hamano
9326d49412 Remove total confusion from git-fetch and git-push
The config file is not the only place remotes are defined, and without
consulting .git/remotes and .git/branches, you won't know if "origin" is
configured by the user.  Don't give up too early and insult the user with
a wisecrack "Where do you want to fetch from today?"

The only thing the previous patch seems to want to prevent from happening
is a lazy "git fetch/push" that does not say where-from/to to produce an
error message 'origin not found', and we can do that by not letting
add_url_alias() to turn a nickname "origin" literally into a pathname
"origin" without changing the rest of the logic.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-16 00:35:09 -07:00
Benjamin Kramer
8e76bf3fc9 Remove unused assignments
These variables were always overwritten or the assigned
value was unused:

  builtin-diff-tree.c::cmd_diff_tree(): nr_sha1
  builtin-for-each-ref.c::opt_parse_sort(): sort_tail
  builtin-mailinfo.c::decode_header_bq(): in
  builtin-shortlog.c::insert_one_record(): len
  connect.c::git_connect(): path
  imap-send.c::v_issue_imap_cmd(): n
  pretty.c::pp_user_info(): filler
  remote::parse_refspec_internal(): llen

Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-14 13:36:34 -07:00
Daniel Barkalow
fa685bdf45 Give error when no remote is configured
When there's no explicitly-named remote, we use the remote specified
for the current branch, which in turn defaults to "origin". But it
this case should require the remote to actually be configured, and not
fall back to the path "origin".

Possibly, the config file's "remote = something" should require the
something to be a configured remote instead of a bare repository URL,
but we actually test with a bare repository URL.

In fetch, we were giving the sensible error message when coming up
with a URL failed, but this wasn't actually reachable, so move that
error up and use it when appropriate.

In push, we need a new error message, because the old one (formerly
unreachable without a lot of help) used the repo name, which was NULL.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-10 23:14:20 -07:00
Junio C Hamano
5ad6b0252b Adjust js/remote-improvements and db/refspec-wildcard-in-the-middle
The latter topic changes the definition of how refspec's src and dst side
is stored in-core; it used to be that the asterisk for pattern was
omitted, but now it is included.  The former topic handcrafts an old style
refspec to feed the refspec matching machinery that lacks the asterisk and
triggers an error.

This resolves the semantic clash between the two topics early before they
need to be merged to integration branches.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-08 00:24:21 -08:00
Daniel Barkalow
abd2bde78b Support '*' in the middle of a refspec
In order to keep the requirements strict, each * has to be a full path
component, and there may only be one * per side. This requirement is
enforced entirely by check_ref_format(); the matching implementation
will substitute the whatever matches the * in the lhs for the * in the
rhs.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07 12:19:28 -08:00
Daniel Barkalow
08fbdb3043 Keep '*' in pattern refspecs
In order to do anything more capable with refspecs, the first step is
to keep the entire input. Additionally, validate patterns by checking
for the ref matching the rules for a pattern as given by
check_ref_format(). This requires a slight change to
check_ref_format() to make it enforce the requirement that the '*'
immediately follow a '/'.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07 12:19:24 -08:00
Daniel Barkalow
e928213fb4 Use the matching function to generate the match results
This puts all of the interpretation of the pattern representation in a
single function for easy manipulation.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07 12:19:21 -08:00
Daniel Barkalow
a3c8423901 Use a single function to match names against patterns
This will help when the matching changes.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07 12:19:19 -08:00
Kjetil Barvik
19de5d6913 stat_tracking_info(): only count real commits
stat_tracking_info() in remote.c is used to collect the statistics to
be able to say (for instance) from the output of "git checkout':

  Your branch and 'foo' have diverged,
  and have X and Y different commit(s) each, respectively.

Currently X and Y also includes the count of merges.  This patch
excludes the merges from being counted.

Signed-off-by: Kjetil Barvik <barvik@broadpark.no>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-04 20:36:24 -08:00
Jeff King
fbb074c253 remote: make guess_remote_head() use exact HEAD lookup if it is available
Our usual method for determining the ref pointed to by HEAD
is to compare HEAD's sha1 to the sha1 of all refs, trying to
find a unique match.

However, some transports actually get to look at HEAD
directly; we should make use of that information when it is
available.  Currently, only http remotes support this
feature.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-27 15:19:23 -08:00
Jay Soffian
5f48cb95aa remote: make match_refs() not short-circuit
match_refs() returns non-zero if there is an error in
match_explicit_refs(), without handling any remaining pattern ref specs.

Its existing callers exit upon receiving non-zero, so a partial result
is of no consequence to them; however a new caller, builtin-remote, is
interested in the complete result even if there are errors in
match_explicit_refs().

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-27 15:19:08 -08:00
Jay Soffian
cdf690e53b remote: make match_refs() copy src ref before assigning to peer_ref
In some instances, match_refs() sets the peer_ref field of refs in the
dst list such that it points to a ref in the src list. This prevents
callers from freeing both the src and dst lists, as doing so would cause
a double-free since free_refs() frees the peer_ref.

As well, the following configuration causes two refs in the dst list to
have the same peer_ref, which can also lead to a double-free:

  push = refs/heads/master:refs/heads/backup
  push = refs/heads/master:refs/heads/master

Existing callers of match_heads() call it only once and then terminate,
w/o ever bothering to free the src or dst lists, so this is not
currently a problem.

This patch modifies match_refs() to first copy any refs it plucks from
the src list before assigning them as a peer_ref. This allows
builtin-remote, a future caller, to free the src and dst lists.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-27 15:19:08 -08:00
Jay Soffian
4229f1fa32 remote: let guess_remote_head() optionally return all matches
Determining HEAD is ambiguous since it is done by comparing SHA1s.

In the case of multiple matches we return refs/heads/master if it
matches, else we return the first match we encounter. builtin-remote
needs all matches returned to it, so add a flag for it to request such.

To be simple and consistent, the return value is now a copy (including
peer_ref) of the matching refs.

Originally contributed by Jeff King along with the prior commit as a
single patch.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-27 15:08:17 -08:00
Jay Soffian
7b3db095d5 remote: make copy_ref() perform a deep copy
To ensure that copied refs can always be freed w/o causing a
double-free, make copy_ref() perform a deep copy.

Also have copy_ref() return NULL if asked to copy NULL to simplify
things for the caller.

Background: currently copy_ref() performs a shallow copy. This is fine
for current callers who never free the result and/or only copy refs
which contain NULL pointers. But copy_ref() is about to gain a new
caller (guess_remote_head()) which copies refs where peer_ref is not
NULL and the caller of guess_remote_head() will want to free the result.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-27 15:08:08 -08:00
Jay Soffian
6cb4e6cc0f remote: simplify guess_remote_head()
This function had complications which made it hard to extend.

- It used to do two things: find the HEAD ref, and then find a
  matching ref, optionally returning the former via assignment to a
  passed-in pointer. Since finding HEAD is a one-liner, just have a
  caller do it themselves and pass it as an argument.

- It used to manually search through the ref list for
  refs/heads/master; this can be a one-line call to
  find_ref_by_name.

Originally contributed by Jeff King along with the next commit as a
single patch.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-26 00:49:45 -08:00
Jay Soffian
8ef517337d move locate_head() to remote.c
Move locate_head() to remote.c and rename it to guess_remote_head() to
more accurately reflect what it does. This is in preparation for being
able to call it from builtin-remote.c

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-26 00:49:45 -08:00
Jay Soffian
ec8452d5a7 move duplicated ref_newer() to remote.c
ref_newer() appears to have been copied from builtin-send-pack.c to
http-push.c via cut and paste. This patch moves the function and its
helper unmark_and_free() to remote.c. There was a slight difference
between the two implementations, one used TMP_MARK for the mark, the
other used 1. Per Jeff King, I went with TMP_MARK as more correct.

This is in preparation for being able to call it from builtin-remote.c

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-26 00:49:45 -08:00
Jay Soffian
454e2025a9 move duplicated get_local_heads() to remote.c
get_local_heads() appears to have been copied from builtin-send-pack.c
to http-push.c via cut and paste. This patch moves the function and its
helper one_local_ref() to remote.c.

The two copies of one_local_ref() were not identical. I used the more
recent version from builtin-send-pack.c after confirming with Jeff King
that it was an oversight that commit 30affa1e did not update both
copies.

This is in preparation for being able to call it from builtin-remote.c

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-26 00:49:45 -08:00
Alexander Potashev
8ca12c0d62 add is_dot_or_dotdot inline function
A new inline function is_dot_or_dotdot is used to check if the
directory name is either "." or "..". It returns a non-zero value if
the given string is "." or "..". It's applicable to a lot of Git
source code.

Signed-off-by: Alexander Potashev <aspotashev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-11 13:21:57 -08:00
Junio C Hamano
3fdd37fe15 Merge branch 'mk/maint-cg-push'
* mk/maint-cg-push:
  git push: Interpret $GIT_DIR/branches in a Cogito compatible way

Conflicts:
	t/t5516-fetch-push.sh
2008-11-12 22:26:24 -08:00
Martin Koegler
18afe101eb git push: Interpret $GIT_DIR/branches in a Cogito compatible way
Current git versions ignore everything after # (called <head> in the
following) when pushing. Older versions (before cf818348f1),
interpret #<head> as part of the URL, which make git bail out.

As branches origin from Cogito, it is the best to correct this by using
the behaviour of cg-push, that is to push HEAD to remote refs/heads/<head>.

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-11 15:26:40 -08:00
Miklos Vajna
89cf4c7004 remote: add a new 'origin' variable to the struct
This allows one to track where was the remote's original source, so that
it's possible to decide if it makes sense to migrate it to the config
format or not.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-11 14:19:29 -08:00
René Scharfe
59c69c0c65 make alloc_ref_from_str() the new alloc_ref()
With all calls to alloc_ref() gone, we can remove it and then we're free
to give alloc_ref_from_str() the shorter name.  It's a much nicer
interface, as the callers always need to have a name string when they
allocate a ref anyway and don't need to calculate and pass its length+1
any more.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-18 06:53:47 -07:00
René Scharfe
b0b44bc7b2 use alloc_ref_from_str() everywhere
Replace pairs of alloc_ref() and strcpy() with alloc_ref_from_str(),
simplifying the code.

In connect.c, also a pair of alloc_ref() and memcpy() is replaced --
the additional cost of a strlen() call should not have too much of an
impact.  Consistency and simplicity are more important.

In remote.c, the code was allocating 11 bytes more than needed for
the name part, but I couldn't see them being used for anything.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-18 06:53:47 -07:00
René Scharfe
8009768e89 add alloc_ref_with_prefix()
In three cases in remote.c, a "raw" ref is allocated using alloc_ref()
and then its is constructed using sprintf().  Clean it up by adding a
helper function, alloc_ref_with_prefix(), which creates a composite
name.  Use it in alloc_ref_from_str(), too, as it simplifies the code.

Open code alloc_ref() in alloc_ref_with_prefix(), as the former is
going to be removed in the patch after the next.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-18 06:53:46 -07:00
Junio C Hamano
46dc1b0e33 Merge branch 'maint'
* maint:
  t1301-shared-repo.sh: don't let a default ACL interfere with the test
  git-check-attr(1): add output and example sections
  xdiff-interface.c: strip newline (and cr) from line before pattern matching
  t4018-diff-funcname: demonstrate end of line funcname matching flaw
  t4018-diff-funcname: rework negated last expression test
  Typo "does not exists" when git remote update remote.
  remote.c: correct the check for a leading '/' in a remote name
  Add testcase to ensure merging an early part of a branch is done properly

Conflicts:
	t/t7600-merge.sh
2008-10-17 01:52:32 -07:00
Brandon Casey
c82efafcfa remote.c: correct the check for a leading '/' in a remote name
This test is supposed to disallow remote entries in the config file of the
form:

   [remote "/foobar"]
      ...

The leading slash in '/foobar' is not acceptable.

Instead it was incorrectly testing that the subkey had no leading '/', which
had no effect since the subkey pointer was made to point at a '.' in the
preceding lines.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-14 17:18:29 -07:00
Brandon Casey
f285a2d7ed Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializer
Many call sites use strbuf_init(&foo, 0) to initialize local
strbuf variable "foo" which has not been accessed since its
declaration. These can be replaced with a static initialization
using the STRBUF_INIT macro which is just as readable, saves a
function call, and takes up fewer lines.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-12 12:36:19 -07:00
Brandon Casey
19d4b416f4 Replace xmalloc/memset(0) pairs with xcalloc
Many call sites immediately initialize allocated memory with zero after
calling xmalloc. A single call to xcalloc can replace this two-call
sequence.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-08 07:30:59 -07:00
Nanako Shiraishi
697d7f5dad remote.c: make free_ref(), parse_push_refspec() and free_refspecs() static.
These functions are not used by any other file.

Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-25 08:00:28 -07:00
Dotan Barak
e8eec71d6e Use xmalloc() and friends to catch allocation failures
Some places use the standard malloc/strdup without checking if the
allocation was successful; they should use xmalloc/xstrdup that
check the memory allocation result.

Signed-off-by: Dotan Barak <dotanba@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-09 16:28:05 -07:00
Brandon Casey
2cb1f36d50 remote.c: add a function for deleting a refspec array and use it (twice)
A number of call sites allocate memory for a refspec array, populate
its members with heap memory, and then free only the refspec pointer
while leaking the memory allocated for the member elements. Provide
a function for freeing the elements of a refspec array and the array
itself.

Caution to callers: code paths must be checked to ensure that the
refspec members "src" and "dst" can be passed to free.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-22 00:15:37 -07:00
Jim Meyering
c71e917975 remote.c: remove useless if-before-free test
We removed a handful of these useless if-before-free tests several months
ago.  This change removes a new one that snuck back in.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-19 21:09:30 -07:00
Junio C Hamano
47c6ef1c8d make sure parsed wildcard refspec ends with slash
A wildcard refspec is internally parsed into a refspec structure with src
and dst strings.  Many parts of the code assumed that these do not include
the trailing "/*" when matching the wildcard pattern with an actual ref we
see at the remote.  What this meant was that we needed to make sure not
just that the prefix matched, and also that a slash followed the part that
matched.

But a codepath that scans the result from ls-remote and finds matching
refs forgot to check the "matching part must be followed by a slash" rule.
This resulted in "refs/heads/b1" from the remote side to mistakenly match
the source side of "refs/heads/b/*:refs/remotes/b/*" refspec.

Worse, the refspec crafted internally by "git-clone", and a hardcoded
preparsed refspec that is used to implement "git-fetch --tags", violated
this "parsed widcard refspec does not end with slash" rule; simply adding
the "matching part must be followed by a slash" rule then would have
broken codepaths that use these refspecs.

This commit changes the rule to require a trailing slash to parsed
wildcard refspecs.  IOW, "refs/heads/b/*:refs/remotes/b/*" is parsed as
src = "refs/heads/b/" and dst = "refs/remotes/b/".  This allows us to
simplify the matching logic because we only need to do a prefixcmp() to
notice "refs/heads/b/one" matches and "refs/heads/b1" does not.

Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-27 14:14:01 -07:00
Avery Pennarun
4de53ce043 Reword "your branch has diverged..." lines to reduce line length
The message length depends on the length of the branch name.  In my case,
the branch name "origin/add-chickens2" put the first line of the "your
branch has diverged" message over 80 characters, which triggered "less -FS"
to not exit automatically as expected.

This patch rewords the messages to make the lines generally shorter, so
that you'd need a significantly longer branch name to trigger the problem.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-16 17:56:59 -07:00
Junio C Hamano
c0234b2ef6 stat_tracking_info(): clear object flags used during counting
When left-right traversal counts the commits in a diverged history, it
leaves the flags in the commits smudged, and we need to clear them before
we return.  Otherwise the caller cannot inspect other branches with this
function again.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-03 12:14:53 -07:00
Junio C Hamano
6d21bf96b5 Refactor "tracking statistics" code used by "git checkout"
People seem to like "Your branch is ahead by N commit" report made by
"git checkout", but the interface into the statistics function was a bit
clunky.  This splits the function into three parts:

 * The core "commit counting" function that takes "struct branch" and
   returns number of commits to show if we are ahead, behind or forked;

 * Convenience "stat formating" function that takes "struct branch" and
   formats the report into a given strbuf, using the above function;

 * "checkout" specific function that takes "branch_info" (type that is
   internal to checkout implementation), calls the above function and
   print the formatted result.

in the hope that the former two can be more easily reusable.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-02 23:32:25 -07:00
Jeff King
9a7bbd1dd1 clean up error conventions of remote.c:match_explicit
match_explicit is called for each push refspec to try to
fully resolve the source and destination sides of the
refspec.  Currently, we look at each refspec and report
errors on both the source and the dest side before aborting.

It makes sense to report errors for each refspec, since an
error in one is independent of an error in the other.
However, reporting errors on the 'dst' side of a refspec if
there has been an error on the 'src' side does not
necessarily make sense, since the interpretation of the
'dst' side depends on the 'src' side (for example, when
creating a new unqualified remote ref, we use the same type
as the src ref).

This patch lets match_explicit return early when the src
side of the refspec is bogus. We still look at all of the
refspecs before aborting the push, though.

At the same time, we clean up the call signature, which
previously took an extra "errs" flag. This was pointless, as
we didn't act on that flag, but rather just passed it back
to the caller. Instead, we now use the more traditional
"return -1" to signal an error, and the caller aggregates
the error count.

This change fixes two bugs, as well:

  - the early return avoids a segfault when passing a NULL
    matched_src to guess_ref()

  - the check for multiple sources pointing to a single dest
    aborted if the "err" flag was set. Presumably the intent
    was not to bother with the check if we had no
    matched_src. However, since the err flag was passed in
    from the caller, we might abort the check just because a
    previous refspec had a problem, which doesn't make
    sense.

    In practice, this didn't matter, since due to the error
    flag we end up aborting the push anyway.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18 12:39:13 -07:00
Junio C Hamano
9bd81e4249 Merge branch 'js/config-cb'
* js/config-cb:
  Provide git_config with a callback-data parameter

Conflicts:

	builtin-add.c
	builtin-cat-file.c
2008-05-25 14:25:02 -07:00
Junio C Hamano
b84c343c88 Merge branch 'db/clone-in-c'
* db/clone-in-c:
  Add test for cloning with "--reference" repo being a subset of source repo
  Add a test for another combination of --reference
  Test that --reference actually suppresses fetching referenced objects
  clone: fall back to copying if hardlinking fails
  builtin-clone.c: Need to closedir() in copy_or_link_directory()
  builtin-clone: fix initial checkout
  Build in clone
  Provide API access to init_db()
  Add a function to set a non-default work tree
  Allow for having for_each_ref() list extra refs
  Have a constant extern refspec for "--tags"
  Add a library function to add an alternate to the alternates file
  Add a lockfile function to append to a file
  Mark the list of refs to fetch as const

Conflicts:

	cache.h
	t/t5700-clone-reference.sh
2008-05-25 13:41:37 -07:00
Junio C Hamano
182fb4df91 Merge branch 'pb/push'
* pb/push:
  add special "matching refs" refspec
2008-05-23 16:06:07 -07:00
Johannes Schindelin
ef90d6d420 Provide git_config with a callback-data parameter
git_config() only had a function parameter, but no callback data
parameter.  This assumes that all callback functions only modify
global variables.

With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14 12:34:44 -07:00
Krzysztof Kowalczyk
737922aa64 alloc_ref_from_str(): factor out a common pattern of alloc_ref from string
Also fix an underallocation in walker.c::interpret_target().

Signed-off-by: Krzysztof Kowalczyk <kkowalczyk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-11 09:04:37 -07:00
Junio C Hamano
31a3c6bb45 Merge branch 'db/learn-HEAD'
* db/learn-HEAD:
  Make ls-remote http://... list HEAD, like for git://...
  Make walker.fetch_ref() take a struct ref.
2008-05-08 20:06:23 -07:00
Junio C Hamano
dc484f2213 Merge branch 'pb/remote-mirror-config'
* pb/remote-mirror-config:
  Add a remote.*.mirror configuration option
2008-05-05 19:15:39 -07:00
Daniel Barkalow
e0aaa29ff3 Have a constant extern refspec for "--tags"
The refspec refs/tags/*:refs/tags/* is sufficiently common and generic
to merit having a constant instead of generating it as needed.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-04 17:41:44 -07:00
Paolo Bonzini
a83619d692 add special "matching refs" refspec
This patch provides a way to specify "push matching heads" using a
special refspec ":".  This is useful because it allows "push = +:"
as a way to specify that matching refs will be pushed but, in addition,
forced updates will be allowed, which was not possible before.

Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-04 17:41:39 -07:00
Daniel Barkalow
be885d96fe Make ls-remote http://... list HEAD, like for git://...
This makes a struct ref able to represent a symref, and makes http.c
able to recognize one, and makes transport.c look for "HEAD" as a ref
in the list, and makes it dereference symrefs for the resulting ref,
if any.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-26 17:36:18 -07:00
Jeff King
f8aae12034 push: allow unqualified dest refspecs to DWIM
Previously, a push like:

  git push remote src:dst

would go through the following steps:

  1. check for an unambiguous 'dst' on the remote; if it
     exists, then push to that ref
  2. otherwise, check if 'dst' begins with 'refs/'; if it
     does, create a new ref
  3. otherwise, complain because we don't know where in the
     refs hierarchy to put 'dst'

However, in some cases, we can guess about the ref type of
'dst' based on the ref type of 'src'. Specifically, before
complaining we now check:

  2.5. if 'src' resolves to a ref starting with refs/heads
       or refs/tags, then prepend that to 'dst'

So now this creates a new branch on the remote, whereas it
previously failed with an error message:

  git push master:newbranch

Note that, by design, we limit this DWIM behavior only to
source refs which resolve exactly (including symrefs which
resolve to existing refs). We still complain on a partial
destination refspec if the source is a raw sha1, or a ref
expression such as 'master~10'.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-24 22:13:24 -07:00
Paolo Bonzini
84bb2dfd9f Add a remote.*.mirror configuration option
This patch adds a remote.*.mirror configuration option that,
when set, automatically puts git-push in --mirror mode for that
remote.

Furthermore, the option is set automatically by `git remote
add --mirror'.

The code in remote.c to parse remote.*.skipdefaultupdate
had a subtle problem: a comment in the code indicated that
special care was needed for boolean options, but this care was
not used in parsing the option.  Since I was touching related
code, I did this fix too.

[jc: and I further fixed up the "ignore boolean" code.]

Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-20 18:49:22 -07:00