Commit Graph

33549 Commits

Author SHA1 Message Date
Dale R. Worley
3244eb9b5a git-submodule.txt: Clarify 'init' and 'add' subcommands.
Describe how 'add' sets the submodule's logical name, which is used in
the configuration entry names.

Clarify that 'init' only sets up the configuration entries for
submodules that have already been added elsewhere.  Describe that
<path> arguments limit the submodules that are configured.

Signed-off-by: Dale Worley <worley@ariadne.com>
Acked-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 12:01:31 -07:00
Kevin Bracey
141efdba57 revision.c: make default history consider bottom commits
Previously, the default history treated bottom commits the same as any
other UNINTERESTING commit, which could force it down side branches.

Consider the following history:

   *A--*B---D--*F         * marks !TREESAME parent paths
     \     /*
      `-C-'

When requesting "B..F", B is UNINTERESTING but TREESAME to D. C is
!UNINTERESTING.

So default following would go from D into the irrelevant side branch C
to A, rather than to B.  Note also that if there had been an extra
!UNINTERESTING commit B1 between B and D, it wouldn't have gone down C.

Change the default following to test relevant_commit() instead of
!UNINTERESTING, so it can proceed straight from D to B, thus finishing
the traversal of that path.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:10 -07:00
Kevin Bracey
bf3418b08b revision.c: don't show all merges for --parents
When using --parents or --children, get_commit_action() previously showed
all merges, even if TREESAME to both parents.

This was intended to tie together the topology of the rewritten parents,
but it was excessive - in fact we only need to show merges that have two
or more relevant parents. Merges at the boundary do not necessarily need
to be shown.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:10 -07:00
Kevin Bracey
4d826608e9 revision.c: discount side branches when computing TREESAME
Use the BOTTOM flag to define relevance for pruning. Relevant commits
are those that are !UNINTERESTING or BOTTOM, and this allows us to
identify irrelevant side branches (UNINTERESTING && !BOTTOM).

If a merge has relevant parents, and it is TREESAME to them, then do not
let irrelevant parents cause the merge to be treated as !TREESAME.

When considering simplification, don't always include all merges -
merges with exactly one relevant parent can be simplified, if TREESAME
according to the above rule.

These two changes greatly increase simplification in limited, pruned
revision lists.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:10 -07:00
Kevin Bracey
7f34a46ff5 revision.c: add BOTTOM flag for commits
When performing edge-based operations on the revision graph, it can be
useful to be able to identify the INTERESTING graph's connection(s) to
the bottom commit(s) specified by the user.

Conceptually when the user specifies "A..B" (== B ^A), they are asking
for the history from A to B. The first connection from A onto the
INTERESTING graph is part of that history, and should be considered. If
we consider only INTERESTING nodes and their connections, then we're
really only considering the history from A's immediate descendants to B.

This patch does not change behaviour, but adds a new BOTTOM flag to
indicate the bottom commits specified by the user, ready to be used by
following patches.

We immediately use the BOTTOM flag to return collect_bottom_commits() to
its original approach of examining the pending commit list rather than
the command line. This will ensure alignment of the definition of
"bottom" with future patches.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:10 -07:00
Kevin Bracey
143f1eafdb simplify-merges: drop merge from irrelevant side branch
Reimplement commit 4b7f53da on top of the new simplify-merges
infrastructure, tightening the condition to only consider root parents;
the original version incorrectly dropped parents that were TREESAME to
anything.

Original log message follows.

The merge simplification rule stated in 6546b59 (revision traversal:
show full history with merge simplification, 2008-07-31) still
treated merge commits too specially.  Namely, in a history with this
shape:

	---o---o---M
	          /
         x---x---x

where three 'x' were on a history completely unrelated to the main
history 'o' and do not touch any of the paths we are following, we
still said that after simplifying all of the parents of M, 'x'
(which is the leftmost 'x' that rightmost 'x simplifies down to) and
'o' (which would be the last commit on the main history that touches
the paths we are following) are independent from each other, and
both need to be kept.

That is incorrect; when the side branch 'x' never touches the paths,
it should be removed to allow M to simplify down to the last commit
on the main history that touches the paths.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:09 -07:00
Kevin Bracey
9c129eab99 simplify-merges: never remove all TREESAME parents
When simplifying an odd merge, such as one that used "-s ours", we may
find ourselves TREESAME to apparently redundant parents. Prevent
simplify_merges() from removing every TREESAME parent; if this would
happen reinstate the first TREESAME parent - the one that the default
log would have followed.

This avoids producing a totally disjoint history from the default log
when the default log is a better explanation of the end result, and aids
visualisation of odd merges.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:09 -07:00
Junio C Hamano
d5d2fc8b1a t6012: update test for tweaked full-history traversal
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:09 -07:00
Kevin Bracey
d0af663e42 revision.c: Make --full-history consider more merges
History simplification previously always treated merges as TREESAME
if they were TREESAME to any parent.

While this was consistent with the default behaviour, this could be
extremely unhelpful when searching detailed history, and could not be
overridden. For example, if a merge had ignored a change, as if by "-s
ours", then:

  git log -m -p --full-history -Schange file

would successfully locate "change"'s addition but would not locate the
merge that resolved against it.

Futher, simplify_merges could drop the actual parent that a commit
was TREESAME to, leaving it as a normal commit marked TREESAME that
isn't actually TREESAME to its remaining parent.

Now redefine a commit's TREESAME flag to be true only if a commit is
TREESAME to _all_ of its parents. This doesn't affect either the default
simplify_history behaviour (because partially TREESAME merges are turned
into normal commits), or full-history with parent rewriting (because all
merges are output). But it does affect other modes. The clearest
difference is that --full-history will show more merges - sufficient to
ensure that -m -p --full-history log searches can really explain every
change to the file, including those changes' ultimate fate in merges.

Also modify simplify_merges to recalculate TREESAME after removing
a parent. This is achieved by storing per-parent TREESAME flags on the
initial scan, so the combined flag can be easily recomputed.

This fixes some t6111 failures, but creates a couple of new ones -
we are now showing some merges that don't need to be shown.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:09 -07:00
Kevin Bracey
e32db66d7a Documentation: avoid "uninteresting"
The documentation of --boundary uses the term "uninteresting", which is
not used or defined anywhere else in the documentation. This is
unhelpful and confusing to anyone who hasn't seen the UNINTERESTING
flag in the source code.

Change to use "excluded", as per revisions.txt.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:09 -07:00
Kevin Bracey
617f50cbfd rev-list-options.txt: correct TREESAME for P
In the example given, P is not TREESAME to E. This doesn't affect the
current result, but it will matter when we change behaviour.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:08 -07:00
Kevin Bracey
53e38358c8 t6111: add parents to tests
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:08 -07:00
Junio C Hamano
e16f434ab6 t6111: allow checking the parents as well
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:08 -07:00
Kevin Bracey
abdea96efd t6111: new TREESAME test set
Some side branching and odd merging to illustrate various flaws in
revision list scans, particularly when limiting the list.

Many expected failures, which will be gone by the end of the "history
traversal refinements" series.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:08 -07:00
Kevin Bracey
c72424b1b5 t6019: test file dropped in -s ours merge
In preparation for upcoming TREESAME work, check the result for G.t,
which is dropped in "-s ours" merge L. The default rev-list is empty, as
expected - it follows the first parent path where it never existed.

Unfortunately, --ancestry-path is also empty. Merges H J and L are all
TREESAME to 1 parent, so are treated as TREESAME and not shown. This is
clearly undesirable in the case of merge L, which dropped our G.t by
taking the non-ancestry-path version. Document this as a known failure,
and expect "H J L", the 3 merges along the path that had to chose G.t
versions.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:08 -07:00
Kevin Bracey
83f0412f3f decorate.c: compact table when growing
When growing the table, take the opportunity to "compact" it by removing
entries with NULL decoration.

Users may have "removed" decorations by passing NULL to
insert_decoration. An object's table entry can't actually be removed
during normal operation, as it would break the linear hash collision
search. But we can remove NULL decoration entries when rebuilding the
table.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:51:08 -07:00
Kevin Bracey
a765499a08 revision.c: treat A...B merge bases as if manually specified
The documentation assures users that "A...B" is defined as "A B --not
$(git merge-base --all A B)". This wasn't in fact quite true, because
the calculated merge bases were not sent to add_rev_cmdline().

The main effect of this was that although

  git rev-list --ancestry-path A B --not $(git merge-base --all A B)

worked, the simpler form

  git rev-list --ancestry-path A...B

failed with a "no bottom commits" error.

Other potential users of bottom commits could also be affected by this
problem, if they examine revs->cmdline_info; I came across the issue in
my proposed history traversal refinements series.

So ensure that the calculated merge bases are sent to add_rev_cmdline(),
flagged with new 'whence' enum value REV_CMD_MERGE_BASE.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 11:45:34 -07:00
Felipe Contreras
4f4e7e9b62 remote-bzr: fix cloning of non-listable repos
Commit 95b0c60 (remote-bzr: add support for bzr repos) introduced a
regression by assuming all bzr remote repos are listable, but they are
not.

If they are not listable they are basically useless, so let's assume
there is no bzr repo.

Reported-by: Thorsten Kranzkowski <dl8bcu@dl8bcu.de>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-16 09:29:26 -07:00
Junio C Hamano
0c2b1cf812 Merge branch 'fc/remote-hg' (early part)
* 'fc/remote-hg' (early part):
  remote-hg: update bookmarks when pulling
  remote-hg: don't push fake 'master' bookmark
  remote-hg: disable forced push by default
  remote-hg: fix new branch creation
  remote-hg: add new get_config_bool() helper
  remote-hg: enable track-branches in hg-git mode
  remote-hg: get rid of unused exception checks
  remote-hg: trivial cleanups
2013-05-15 14:58:56 -07:00
Felipe Contreras
24317ef32a remote-hg: update bookmarks when pulling
Otherwise, the user would never ever see new bookmarks, only the
ones that (s)he initially cloned.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:41:13 -07:00
Felipe Contreras
9ed920a680 remote-hg: don't push fake 'master' bookmark
We skip it locally, but not for the remote, so let's do so.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:40:59 -07:00
Felipe Contreras
06f4213355 remote-hg: disable forced push by default
In certain situations we might end up pushing garbage revisions
(e.g. in a rebase), and the patches to deal with that haven't been
merged yet.  So let's disable forced pushes by default.

We are essentially reverting back to the old v1.8.2 behavior, to
minimize the possibility of regressions, but in a way the user can
configure.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:40:16 -07:00
Felipe Contreras
637333673a remote-hg: fix new branch creation
When a user creates a new branch with git:

 % git checkout -b branches/devel

and then pushes this branch

 % git push origin branches/devel

which is the way to push new mercurial branches, we do want to
create a branch, but the command would fail without newbranch=True.

This only matters when force_push=False, but setting newbranch=True
unconditionally does not hurt.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:35:51 -07:00
Felipe Contreras
760ee1c70a remote-hg: add new get_config_bool() helper
No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:33:39 -07:00
Felipe Contreras
679e87c02b remote-hg: enable track-branches in hg-git mode
The user can turn this off.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:33:15 -07:00
Felipe Contreras
557399e9bd remote-hg: get rid of unused exception checks
Remove try/except check because we are no longer calling
check_output(), which may throw an exception.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:31:54 -07:00
Felipe Contreras
eb7976e7dd remote-hg: trivial cleanups
Drop unused "global", and remove redundant comparison of two files.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:30:36 -07:00
Matthijs Kooijman
aac385717a combine-diff.c: Fix output when changes are exactly 3 lines apart
When a deletion is followed by exactly 3 (or whatever the number of
context lines) unchanged lines, followed by another change, the combined
diff output would hide the first deletion, resulting in a malformed
diff.

This happened because the 3 lines before each change are painted
interesting, but also marked as no_pre_delete to prevent showing deletes
that were previously marked as uninteresting. This behaviour was
introduced in c86fbe53 (diff -c/--cc: do not include uninteresting
deletion before leading context). However, as a side effect, this could
also mark deletes that were already interesting as no_pre_delete. This
would happen only if the delete was exactly 3 lines away from the next
change, since lines farther away would not be touched by the "paint
three lines before the change" code and lines closer would be painted
by the "merge two adjacent hunks" code instead, which does not set the
no_pre_delete flag.

This commit fixes this problem by only setting the no_pre_delete flag
for changes that were previously uninteresting.

Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 12:02:04 -07:00
Felipe Contreras
6a3ac18ba3 remote-bzr: update old organization
If a clone exists with the old organization (v1.8.2) it will prevent
the new shared bzr repository organization from working, so let's
remove this repository, which is not used any more.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-14 15:51:00 -07:00
Thomas Rast
5ce4367d64 coverage: build coverage-untested-functions by default
Change the 'coverage' target to build coverage-untested-functions by
default, so as to make it more discoverable.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:25:25 -07:00
Thomas Rast
c14cc77c11 coverage: set DEFAULT_TEST_TARGET to avoid using prove
If the user sets DEFAULT_TEST_TARGET=prove in his config.mak, that
carries over into the coverage tests.  Which is really bad if he also
sets GIT_PROVE_OPTS=-j<..> as that completely breaks the coverage
runs.

Instead of attempting to mess with the GIT_PROVE_OPTS, just force the
test target to 'test' so that we run under make, like we intended all
along.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:25:10 -07:00
Thomas Rast
dcbe7f1ab8 coverage: do not delete .gcno files before building
The coverage-compile target depends on coverage-clean, which is
supposed to remove the earlier build products that would get in the
way of the next coverage test run.

However, removing *.gcno is actively wrong.  These are the files that
contain the compile-time coverage related data.  They are only rebuilt
if the source is compiled.  So if one ran 'make coverage' two times in
a row, the second run would remove *.gcno, but then fail to recreate
them because neither source files nor build flags have changed.  (This
remained hidden for so long most likely because any other intervening
use of 'make' will change the build flags, causing a full rebuild.)

So we make an exception for *.gcno.  The *.gcda are the coverage
results, written when the gcov-instrumented program is run.  We still
remove those, so as to get a one-test-run view of the data; you could
probably argue the other way too.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:24:46 -07:00
Thomas Rast
0c38a95ec8 coverage: split build target into compile and test
Confusingly, the coverage-build target in fact builds with gcov
support _and runs tests_.

Split it into two targets that actually are named after what they do.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 15:23:47 -07:00
Junio C Hamano
ab84621754 Git 1.8.3-rc2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 11:09:42 -07:00
Kevin Bracey
f659031c1c t6019: demonstrate --ancestry-path A...B breakage
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-13 09:00:41 -07:00
Junio C Hamano
f74455ab21 Merge git://ozlabs.org/~paulus/gitk
* git://ozlabs.org/~paulus/gitk:
  gitk: On OSX, bring the gitk window to front
  gitk: Add support for -G'regex' pickaxe variant
  gitk: Add menu item for reverting commits
  gitk: Simplify file filtering
  gitk: Display the date of a tag in a human-friendly way
  gitk: Improve behaviour of drop-down lists
  gitk: Move hard-coded colors to .gitk
2013-05-13 07:51:41 -07:00
Tair Sabirgaliev
76bf6ff93e gitk: On OSX, bring the gitk window to front
On OSX, Tcl/Tk application windows are created behind all
the applications down the stack of windows.  This is very
annoying, because once a gitk window appears, it's the
downmost window and switching to it is pain.

The patch is: if we are on OSX, use osascript to
bring the current Wish process window to front.

Signed-off-by: Tair Sabirgaliev <tair.sabirgaliev@gmail.com>
Thanks-to: Stefan Haller <lists@haller-berlin.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2013-05-13 21:29:43 +10:00
Martin Langhoff
c33cb9083e gitk: Add support for -G'regex' pickaxe variant
git log -G'regex' is a very useful alternative to the classic
pickaxe.  Minimal patch to make it usable from gitk.

[zj: reword message]
[paulus@samba.org: reword droplist item]
Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2013-05-13 21:29:40 +10:00
Ramkumar Ramachandra
01a1e6465f rebase --merge: return control to caller, for housekeeping
Return control to the caller git-rebase.sh to get these two tasks

    rm -fr "$dotest"
    git gc --auto

done by it.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:08 -07:00
Ramkumar Ramachandra
15d4bf2e1e rebase -i: return control to caller, for housekeeping
Return control to the caller git-rebase.sh to get these two tasks

    rm -fr "$dotest"
    git gc --auto

done by it.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Ramkumar Ramachandra
a1549e1049 am: return control to caller, for housekeeping
We only need to do these two tasks

    git gc --auto
    rm -fr "$dotest"

ourselves if the script was invoked as a standalone program; when
invoked with --rebasing (from git-rebase--am.sh), cascade control back
to the ultimate caller git-rebase.sh to do this for us.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Ramkumar Ramachandra
f5f758a5df rebase: prepare to do generic housekeeping
On successful completion of a rebase in git-rebase--$backend.sh, the
$backend script cleans up on its own and exits.  The cleanup routine
is however, independent of the $backend, and each $backend script
unnecessarily duplicates this work:

    rm -rf "$state_dir"
    git gc --auto

Prepare git-rebase.sh for later patches that return control from each
$backend script back to us, for performing this generic cleanup
routine.  The code that this patch adds is currently unreachable, and
will only start to be used when git-rebase--$backend.sh scripts are
taught to return control in later patches.

Another advantage is that git-rebase.sh can implement a generic
finish_rebase() to possibly do additional tasks in addition to the
cleanup.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Ramkumar Ramachandra
1224f3d0f1 rebase -i: don't error out if $state_dir already exists
In preparation for a later patch that will create $state_dir/autostash
in git-rebase.sh before anything else can happen, change a `mkdir
$state_dir` call to `mkdir -p $state_dir`.  The change is safe,
because this is not a test to detect an in-progress rebase (that is
already done much earlier in git-rebase.sh).

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Ramkumar Ramachandra
c30754f188 am: tighten a conditional that checks for $dotest
In preparation for a later patch that creates $dotest/autostash in
git-rebase.sh before anything else happens, don't assume that the
presence of a $dotest directory implies the existence of the
$dotest/next and $dotest/last files.  Look for them explicitly.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Junio C Hamano
5e2c7cd2c1 t5551: do not use unportable sed '\+'
The set-up step to prepare a repository with 50000 tags used a
non-porable '\+' to match one-or-more.

The error was not caught because the next test that uses that
repository did not even bother to check if these expected tags were
actually cloned to the resulting repository.

Fix the sed construct to use BRE and update the "clone" test that
wanted to test cloning from such a repository with many refs to
check the resulting repository.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:51:47 -07:00
Jeff King
f269048754 fetch: opportunistically update tracking refs
When we run a regular "git fetch" without arguments, we
update the tracking refs according to the configured
refspec. However, when we run "git fetch origin master" (or
"git pull origin master"), we do not look at the configured
refspecs at all, and just update FETCH_HEAD.

We miss an opportunity to update "refs/remotes/origin/master"
(or whatever the user has configured). Some users find this
confusing, because they would want to do further comparisons
against the old state of the remote master, like:

  $ git pull origin master
  $ git log HEAD...origin/master

In the currnet code, they are comparing against whatever
commit happened to be in origin/master from the last time
they did a complete "git fetch".  This patch will update a
ref from the RHS of a configured refspec whenever we happen
to be fetching its LHS. That makes the case above work.

The downside is that any users who really care about whether
and when their tracking branches are updated may be
surprised.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:23:48 -07:00
Jeff King
900f2814b8 refactor "ref->merge" flag
Each "struct ref" has a boolean flag that is set by the
fetch code to determine whether the ref should be marked as
"not-for-merge" or not when we write it out to FETCH_HEAD.

It would be useful to turn this boolean into a tri-state,
with the third state meaning "do not bother writing it out
to FETCH_HEAD at all". That would let us add extra refs to
the set of refs to be stored (e.g., to store copies of
things we fetched) without impacting FETCH_HEAD.

This patch turns it into an enum that covers the tri-state
case, and hopefully makes the code more explicit and easier
to read.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:23:48 -07:00
Thomas Rast
4ab90e7a5c fetch/pull doc: untangle meaning of bare <ref>
The documentation erroneously used the same wording for both fetch and
pull, stating that something will be merged even in git-fetch(1).

In addition, saying that "<ref> is equivalent to <ref>:" doesn't
really help anyone who still needs to read manpages.  Clarify what is
actually going on.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:23:47 -07:00
Jeff King
51f8c814d5 t5510: start tracking-ref tests from a known state
We have three sequential tests for for whether tracking refs
are updated by various fetches and pulls; the first two
should not update the ref, and the third should. Each test
depends on the state left by the test before.

This is fragile (a failing early test will confuse later
tests), and means we cannot add more "should update" tests
after the third one.

Let's instead save the initial state before these tests, and
then reset to a known state before running each test.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 15:23:47 -07:00
Torsten Bögershausen
8d97506e4b test-bzr: do not use unportable sed '\+'
Using sed -e '/[0-9]\+//' to find "one or more digits" is not
portable.

Use the Basic Regular Expression '/[0-9][0-9]*//' instead.

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-11 12:51:19 -07:00