Commit Graph

3255 Commits

Author SHA1 Message Date
Junio C Hamano
2bcab24080 ls-files: debugging aid for CE_VALID changes.
This is not really part of the proposed updates for CE_VALID,
but with this change, ls-files -t shows CE_VALID paths with
lowercase tag letters instead of the usual uppercase.  Useful
for checking out what is going on.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-08 21:54:52 -08:00
Junio C Hamano
8b9b0f3af7 "Assume unchanged" git: do not set CE_VALID with --refresh
When working with automatic assume-unchanged mode using
core.ignorestat, setting CE_VALID after --refresh makes things
more cumbersome to use.  Consider this scenario:

 (1) the working tree is on a filesystem with slow lstat(2).
     The user sets core.ignorestat = true.

 (2) "git checkout" to switch to a different branch (or initial
     checkout) updates all paths and the index starts out with
     "all clean".

 (3) The user knows she wants to edit certain paths.  She uses
     update-index --no-assume-unchanged (we could call it --edit;
     the name is inmaterial) to mark these paths and starts
     editing.

 (4) After editing half of the paths marked to be edited, she
     runs "git status".  This runs "update-index --refresh" to
     reduce the false hits from diff-files.

 (5) Now the other half of the paths, since she has not changed
     them, are found to match the index, and CE_VALID is set on
     them again.

For this reason, this commit makes update-index --refresh not to
set CE_VALID even after the path without CE_VALID are verified
to be up to date.  The user still can run --really-refresh to
force lstat() to match the index entries to the reality.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-08 21:54:48 -08:00
Junio C Hamano
5f73076c1a "Assume unchanged" git
This adds "assume unchanged" logic, started by this message in the list
discussion recently:

	<Pine.LNX.4.64.0601311807470.7301@g5.osdl.org>

This is a workaround for filesystems that do not have lstat()
that is quick enough for the index mechanism to take advantage
of.  On the paths marked as "assumed to be unchanged", the user
needs to explicitly use update-index to register the object name
to be in the next commit.

You can use two new options to update-index to set and reset the
CE_VALID bit:

	git-update-index --assume-unchanged path...
	git-update-index --no-assume-unchanged path...

These forms manipulate only the CE_VALID bit; it does not change
the object name recorded in the index file.  Nor they add a new
entry to the index.

When the configuration variable "core.ignorestat = true" is set,
the index entries are marked with CE_VALID bit automatically
after:

 - update-index to explicitly register the current object name to the
   index file.

 - when update-index --refresh finds the path to be up-to-date.

 - when tools like read-tree -u and apply --index update the working
   tree file and register the current object name to the index file.

The flag is dropped upon read-tree that does not check out the index
entry.  This happens regardless of the core.ignorestat settings.

Index entries marked with CE_VALID bit are assumed to be
unchanged most of the time.  However, there are cases that
CE_VALID bit is ignored for the sake of safety and usability:

 - while "git-read-tree -m" or git-apply need to make sure
   that the paths involved in the merge do not have local
   modifications.  This sacrifices performance for safety.

 - when git-checkout-index -f -q -u -a tries to see if it needs
   to checkout the paths.  Otherwise you can never check
   anything out ;-).

 - when git-update-index --really-refresh (a new flag) tries to
   see if the index entry is up to date.  You can start with
   everything marked as CE_VALID and run this once to drop
   CE_VALID bit for paths that are modified.

Most notably, "update-index --refresh" honours CE_VALID and does
not actively stat, so after you modified a file in the working
tree, update-index --refresh would not notice until you tell the
index about it with "git-update-index path" or "git-update-index
--no-assume-unchanged path".

This version is not expected to be perfect.  I think diff
between index and/or tree and working files may need some
adjustment, and there probably needs other cases we should
automatically unmark paths that are marked to be CE_VALID.

But the basics seem to work, and ready to be tested by people
who asked for this feature.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-08 21:54:42 -08:00
Andreas Ericsson
d19e06fa8f .gitignore git-rerere and config.mak
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-07 13:19:51 -08:00
Linus Torvalds
deb989b57d Fix "git diff a..b" breakage
The "--cc" implies "-p", but without the recursive part.

		Linus

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-07 13:19:50 -08:00
Petr Baudis
4e783b41e0 Basic documentation for git-show
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-07 13:19:42 -08:00
Petr Baudis
3904848c6e Document git-diff-tree --always
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-07 13:19:40 -08:00
Mark Wooding
53f313897e http-fetch: Abort requests for objects which arrived in packs
In fetch_object, there's a call to release an object request if the
object mysteriously arrived, say in a pack.  Unfortunately, the fetch
attempt for this object might already be in progress, and we'll leak the
descriptor.  Instead, try to tidy away the request.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-07 02:13:02 -08:00
Andreas Ericsson
66f04f38f4 format-patch: Remove last vestiges of --mbox option
Don't mention it in docs or --help output.
Remove mbox, date and author variables from git-format-patch.sh.

Use DESCRIPTION text from man-page to update LONG_USAGE output. It's
a bit silly to have two texts saying the same thing in different words,
and I'm too lazy to update both.

Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-07 02:09:55 -08:00
Junio C Hamano
90768daaa0 Merge git://git.kernel.org/pub/scm/gitk/gitk
* git://git.kernel.org/pub/scm/gitk/gitk:
  gitk: Use git-diff-tree --cc for showing the diffs for merges
  gitk: Add braces around if expressions
2006-02-07 01:19:49 -08:00
Junio C Hamano
5a798fb57f git-commit: finishing touches.
Introduce --only flag to allow the new "partial commit"
semantics when paths are specified.  The default is still the
traditional --include semantics.  Once peoples' fingers and
scripts that want the traditional behaviour are updated to
explicitly say --include, we could change it to either default
to --only, or refuse to operate without either --only/--include
when paths are specified.

This also fixes a couple of bugs in the previous round.  Namely:

 - forgot to save/restore index in some cases.

 - forgot to use the temporary index to show status when '--only
   paths...' semantics was used.

 - --author did not take precedence when reusing an existing
   commit.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 23:20:32 -08:00
Junio C Hamano
130fcca63f git-commit: revamp the git-commit semantics.
- "git commit" without _any_ parameter keeps the traditional
   behaviour.  It commits the current index.

   We commit the whole index even when this form is run from a
   subdirectory.

 - "git commit --include paths..." (or "git commit -i paths...")
   is equivalent to:

   	git update-index --remove paths...
        git commit

 - "git commit paths..." acquires a new semantics.  This is an
   incompatible change that needs user training, which I am
   still a bit reluctant to swallow, but enough people seem to
   have complained that it is confusing to them.  It

   1. refuses to run if $GIT_DIR/MERGE_HEAD exists, and reminds
      trained git users that the traditional semantics now needs
      -i flag.

   2. refuses to run if named paths... are different in HEAD and
      the index (ditto about reminding).  Added paths are OK.

   3. reads HEAD commit into a temporary index file.

   4. updates named paths... from the working tree in this
      temporary index.

   5. does the same updates of the paths... from the working
      tree to the real index.

   6. makes a commit using the temporary index that has the
      current HEAD as the parent, and updates the HEAD with this
      new commit.

 - "git commit --all" can run from a subdirectory, but it updates
   the index with all the modified files and does a whole tree
   commit.

 - In all cases, when the command decides not to create a new
   commit, the index is left as it was before the command is
   run.  This means that the two "git diff" in the following
   sequence:

       $ git diff
       $ git commit -a
       $ git diff

   would show the same diff if you abort the commit process by
   making the commit log message empty.

This commit also introduces much requested --author option.

	$ git commit --author 'A U Thor <author@example.com>'

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 23:20:32 -08:00
Junio C Hamano
8389b52b2a git-rerere: reuse recorded resolve.
In a workflow that employs relatively long lived topic branches,
the developer sometimes needs to resolve the same conflict over
and over again until the topic branches are done (either merged
to the "release" branch, or sent out and accepted upstream).

This commit introduces a new command, "git rerere", to help this
process by recording the conflicted automerge results and
corresponding hand-resolve results on the initial manual merge,
and later by noticing the same conflicted automerge and applying
the previously recorded hand resolution using three-way merge.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:53:11 -08:00
Junio C Hamano
1cb303872a fmt-merge-msg: show summary of what is merged.
In addition to the branch names, populate the log message with
one-line description from actual commits that are being merged.

This was prompted by Len's 12-way octopus.  You need to have
'merge.summary' in the configuration file to enable it:

	$ git repo-config merge.summary yes

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:52:08 -08:00
Junio C Hamano
1b1fdf8c2f read-tree --aggressive
A new flag --aggressive resolves what we traditionally resolved
with external git-merge-one-file inside index while read-tree
3-way merge works.

git-merge-octopus and git-merge-resolve use this flag before
running git-merge-index with git-merge-one-file.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:43:27 -08:00
Junio C Hamano
8bc5c04a71 [PATCH] mailinfo: reset CTE after each multipart
If the first part uses quoted-printable to protect iso8859-1
name in the commit log, and the second part was plain ascii text
patchfile without even Content-Transfer-Encoding subheader, we
incorrectly tried to decode the patch as quoted printable.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:37:53 -08:00
J. Bruce Fields
cc55aaec38 Docs: minor git-push copyediting
Minor git-push copyediting

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:14:57 -08:00
J. Bruce Fields
85a97d4e10 Docs: move git url and remotes text to separate sections
The sections on git urls and remotes files in the git-fetch,
git-pull, and git-push manpages seem long enough to be worth a
manpage section of their own.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:14:56 -08:00
J. Bruce Fields
3598a30808 Docs: split up pull-fetch-param.txt
The push and pull man pages include a bunch of shared text from
pull-fetch-param.txt.  This simplifies maintenance somewhat, but
there's actually quite a bit of text that applies only to one or the
other.

So, separate out the push- and pull/fetch-specific text into
pull-fetch-param.txt and git-push.txt, then include the largest chunk
of common stuff (the description of protocols and url's) from
urls.txt.  That cuts some irrelevant stuff from the man pages without
making us duplicate too much.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 21:14:55 -08:00
Junio C Hamano
4462731e05 combine-diff: do not punt on removed or added files.
When we remove a file, the parents' contents are all removed so
it is not that interesting to show all of them, but the fact it
was removed when all parents had it *is* unusual.  When we add a
file, similarly the fact it was added when no parent wanted it
*is* unusual, and in addition the result matters, so show it.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 18:54:08 -08:00
Paul Mackerras
b77b02785d gitk: Use git-diff-tree --cc for showing the diffs for merges
This replaces a lot of code that used the result from several 2-way
diffs to generate a combined diff for a merge.  Now we just use
git-diff-tree --cc and colorize the output a bit, which is a lot
simpler, and has the enormous advantage that if the diff doesn't
show quite what someone thinks it should show, I can deflect the
blame to someone else. :)

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07 09:13:52 +11:00
Paul Mackerras
418c4c7bce gitk: Add braces around if expressions
Apparently this simplifies things for the parser/compiler and makes
it go slightly faster (since without the braces, it potentially has
to do two levels of substitutions rather than one).

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07 09:10:18 +11:00
Junio C Hamano
2454c962fb combine-diff: show mode changes as well.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 13:06:49 -08:00
Junio C Hamano
9843a1f6fd combine-diff: do not send NULL to printf
When we run combined diff from working tree (diff-files --cc),
we sent NULL to printf that is returned by find_unique_abbrev().

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 12:30:00 -08:00
Junio C Hamano
960c7021b3 core-tutorial: adjust to recent reality.
We still talked about HEAD symlinks but these days we use
symrefs by default.

Also 'failed/prevented' message is now gone from the merge
output.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 12:27:33 -08:00
Junio C Hamano
f22fd75c6a git-diff: do not fall back on --cc when -[123], --ours etc. are given.
These flags ask diff with a specific unmerged stage, so it
should fall back on -p instead.  Also when -c is given, we
should not do --cc.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-06 11:22:07 -08:00
Junio C Hamano
a2c641c4ab Merge branch 'jc/diff'
* jc/diff:
  git-diff-tree --stdin: show all parents.
  combine-diff: remove misguided --show-empty hack.
2006-02-05 23:55:45 -08:00
Junio C Hamano
12db4852de Merge branches 'lt/show' and 'lt/revlist'
* lt/show:
  git-show

* lt/revlist:
  rev-parse lstat() workaround cleanup.
2006-02-05 23:55:09 -08:00
Junio C Hamano
a8c44537fe Merge branches 'jc/daemon' and 'mw/http'
* jc/daemon:
  daemon: extend user-relative path notation.
  daemon: Set SO_REUSEADDR on listening sockets.
  daemon: do not forbid user relative paths unconditionally under --base-path

* mw/http:
  http-fetch: Tidy control flow in process_alternate_response
  http: Turn on verbose Curl messages if GIT_CURL_VERBOSE set in environment
  http-fetch: Fix message reporting rename of object file.
  http-fetch: Fix object list corruption in fill_active_slots().
2006-02-05 23:54:14 -08:00
Junio C Hamano
45392a648d git-diff-tree --stdin: show all parents.
git-diff-tree --stdin ignored second and subsequent parents when
fed git-rev-list --parents output.  Update diff_tree_commit()
function to take a commit object, and pass a fabricated commit
object after grafting the fake parents from diff_tree_stdin().

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 23:00:41 -08:00
Junio C Hamano
e3c3a550d4 combine-diff: remove misguided --show-empty hack.
Now --always flag is available in diff-tree, there is no reason
to have that hack in the diffcore side.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 22:25:00 -08:00
Linus Torvalds
9ad0a93330 rev-parse lstat() workaround cleanup.
Earlier we had a workaround to avoid misspelled revision name to
be taken as a filename when "--no-revs --no-flags" are in
effect.  This cleans up the logic.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 21:49:42 -08:00
Ryan Anderson
2718435b7b git-send-email: Fully implement --quiet and document it.
Also reorganizes the man page to list options alphabetically.

Signed-off-by: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 18:23:53 -08:00
Junio C Hamano
603968d22b daemon: extend user-relative path notation.
Earlier, we made --base-path to automatically forbid
user-relative paths, which was probably a mistake.  This
introduces --user-path (or --user-path=path) option to control
the use of user-relative paths independently.  The latter form
of the option can be used to restrict accesses to a part of each
user's home directory, similar to "public_html" some webservers
supports.

If we're invoked with --user-path=FOO option, then a URL of the
form git://~USER/PATH/... resolves to the path HOME/FOO/PATH/...,
where HOME is USER's home directory.

[jc: This is much reworked by me so bugs are mine, but the
 original patch was done by Mark Wooding.]

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:51:01 -08:00
Mark Wooding
1955fabf41 daemon: Set SO_REUSEADDR on listening sockets.
Without this, you can silently lose the ability to receive IPv4
connections if you stop and restart the daemon.

[jc: tweaked code organization a bit and made this controllable
 from a command line option.]

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:51:01 -08:00
Junio C Hamano
363f24c936 daemon: do not forbid user relative paths unconditionally under --base-path
Using base-path to relocate the server public space does not
have anything to do with allowing or forbidding user relative
paths.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:51:01 -08:00
Mark Wooding
a3f583cbf7 http-fetch: Tidy control flow in process_alternate_response
It's a bit convoluted.  Tidy it up.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:49:17 -08:00
Mark Wooding
7982d74e1c http: Turn on verbose Curl messages if GIT_CURL_VERBOSE set in environment
Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:49:16 -08:00
Mark Wooding
7b934ec015 http-fetch: Fix message reporting rename of object file.
move_temp_to_file returns 0 or -1.  This is not a good thing to pass to
strerror(3).  Fortunately, someone already reported the error, so don't
worry too much.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:49:16 -08:00
Mark Wooding
09db444fdb http-fetch: Fix object list corruption in fill_active_slots().
In fill_active_slots() -- if we find an object which has already arrived,
say as part of a pack, /don't/ remove it from the list.  It's already been
prefetched and someone will ask for it later.  Just label it as done and
carry blithely on.  (As it was, the code would dereference a freed object
to continue through the list anyway.)

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:49:16 -08:00
Junio C Hamano
80d48ac623 git-show
This is essentially 'git whatchanged -n1 --always --cc "$@"'.
Just like whatchanged takes default flags from
whatchanged.difftree configuration, this uses show.difftree
configuration.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:42:49 -08:00
Junio C Hamano
df9892ffce git-diff: use --cc instead of -p.
The --cc output is much nicer when dealing with merges, so use
it by default.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:37:18 -08:00
Junio C Hamano
4abd89648e diff-index: make --cc a synonym for -p for now.
It could be made later to show unmerged state nicer than the
default as we did for diff-files later, but this would suffice
for now.  We would like to make --cc the default for 'git diff'.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 16:36:12 -08:00
Linus Torvalds
ec0bdb6f1e diff-tree --always flag
It _might_ make sense for certain users like gitk and gitview if
we had a single tool that gives --pretty and its diff even if
the diff is empty.  Having said that, the flag --cc -m is too
specific.  If some uses want to see the commit log even for an
empty diff, that flag should not be something only --cc honors.

Here's an "--always" flag that does that.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 13:46:19 -08:00
Peter Eriksen
04fe2a1706 Use adler32() from zlib instead of defining our own.
Since we already depend on zlib, we don't need to define our
own adler32().  Spotted by oprofile.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 13:45:01 -08:00
Linus Torvalds
9523a4c2fc Fix git-rev-parse over-eager errors
Using "--verify" together with "--no-flags" makes perfect sense, but
git-rev-parse would complain about it when it saw a flag, even though it
would never actually use/output that flag.

This fixes it.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-05 13:44:59 -08:00
Junio C Hamano
7334f06ce6 Do not fall back on vi on dumb terminals.
When TERM is set to 'dumb', do not start vi to edit the commit log
message.

Suggested by Amos Waterland.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-04 22:16:22 -08:00
Junio C Hamano
2d310d8a01 Merge branches 'jc/sha1', 'jc/diff' and 'jc/ws'
* jc/sha1:
  get_sha1_1: allow octopus^12 to be properly parsed.

* jc/diff:
  combine-diff: finishing touches to git-diff-tree --cc

* jc/ws:
  whitespace cleanup.
2006-02-03 23:52:20 -08:00
Jason Riedy
8361e1d4d3 Use sha1_file.c's mkdir-like routine in apply.c.
As far as I can see, create_subdirectories() in apply.c just
duplicates the functionality of safe_create_leading_directories() from
sha1_file.c.  The former has a warm, fuzzy const parameter, but that's
not important.

The potential problem with EEXIST and creating directories should
never occur here, but will be removed by future
safe_create_leading_directories() changes.  Other uses of EEXIST in
apply.c should be fine barring intentionally malicious behavior.

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-03 23:35:14 -08:00
Mark Wooding
1fda3d557b daemon: Provide missing argument for logerror() call.
Could cause a crash if --base-path set.  Unlikely to be a security the
concern: message doesn't go to the client, so we can't leak anything
(except by dumping core), and we've already forked, so it's not a denial
of service.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-03 23:33:20 -08:00