Commit Graph

3227 Commits

Author SHA1 Message Date
Sven Verdoolaege
ee85cbc688 [PATCH] git-ssh-pull: commit-id consistency
In contrast to other plumbing tools, git-ssh-push only
allow a very restrictive form of commit-id filenames.
This patch removes this restriction.

Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 15:27:50 -07:00
Junio C Hamano
613d872cfb [PATCH] http-pull: documentation updates.
Describe -w option.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 16:52:16 -07:00
Junio C Hamano
d0587fd59f [PATCH] git-apply: documentation.
Add missing documentation for git-apply.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-22 10:23:48 -07:00
Junio C Hamano
f5ab6ccae3 [PATCH] local-pull: implement fetch_ref()
This makes "-w ref" usable for git-local-pull.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-22 10:23:48 -07:00
Junio C Hamano
366175ef8c [PATCH] Rework -B output.
Patch for a completely rewritten file detected by the -B flag
was shown as a pair of creation followed by deletion in earlier
versions.  This was an misguided attempt to make reviewing such
a complete rewrite easier, and unnecessarily ended up confusing
git-apply.  Instead, show the entire contents of old version
prefixed with '-', followed by the entire contents of new
version prefixed with '+'.  This gives the same easy-to-review
for human consumer while keeping it a single, regular
modification patch for machine consumption, something that even
GNU patch can grok.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-19 20:13:18 -07:00
Junio C Hamano
232b75ab3d [PATCH] Update diff documentation.
This updates diff documentation to discuss --find-copies-harder,
and adds descriptions for options that were not described
earlier.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-19 20:13:18 -07:00
Linus Torvalds
ce30a4b68a Update tutorial a bit for scripted helpers. 2005-06-14 19:00:00 -07:00
Tommy M. McGuire
1cc92ff6ca [PATCH] cvs-migration.txt
Slightly expand the cvsimport description, and make a couple of syntax
edits.

The way I figure it, telling someone why cvsimport is taking so long
will improve their overall user experience.  :-)

Signed-off-by: Tommy McGuire <mcguire@crsr.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-12 20:48:18 -07:00
Junio C Hamano
d327b89a22 [PATCH] Tutorial update to adjust for -B fix
Now -B does not say silly "complete rewrite" anymore for small
files such as the one in the tutorial example.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-12 20:40:19 -07:00
Petr Baudis
17ebe977d7 [PATCH] Tidy up some rev-list-related stuff
This patch tidies up the git-rev-list documentation and epoch.c, which
are in severe clash with the unwritten coding style now, and quite
unreadable.

It also fixes up compile failures with older compilers due to variable
declarations after code.

The patch mostly wraps lines before or on the 80th column, removes
plenty of superfluous empty lines and changes comments from // to /* */.

Signed-off-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 15:59:09 -07:00
Linus Torvalds
3c65eb1849 cvs-migration: add more of a header to the "annotate" discussion 2005-06-08 13:19:31 -07:00
Christian Meder
1ae4ee8942 [PATCH] Miniscule correction of diff-format.txt
Add missing "space" element to the description of the diff-format.

Signed-off-by: Christian Meder <chris@absolutegiganten.org>
Acked-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 13:09:01 -07:00
Linus Torvalds
fcbfd5a6b2 Talk about "git cvsimport" in the cvs migration docs
We should add a lot more information about how you copy repositories,
pulling and pushing, merging etc.  Oh, well.  I'm not exactly known for
my documentation skills. Maybe somebody else will help me..
2005-06-07 15:52:06 -07:00
Junio C Hamano
28f8fafff8 [PATCH] Documentation: describe diff tweaking (fix).
I cannot count ;-)

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-06-07 15:23:30 -07:00
Junio C Hamano
b0bf8f24e9 [PATCH] Start cvs-migration documentation
This does a section to talk about "cvs annotate".

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-07 15:23:30 -07:00
Junio C Hamano
ccef66b55a [PATCH] read-tree: update documentation for 3-way merge.
This explains the new merge world order that formally assigns
specific meaning to each of three tree-ish command line
arguments.  It also mentions -u option

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-07 15:13:24 -07:00
Junio C Hamano
c859600954 [PATCH] read-tree: save more user hassles during fast-forward.
This implements the "never lose the current cache information or
the work tree state, but favor a successful merge over merge
failure" principle in the fast-forward two-tree merge operation.

It comes with a set of tests to cover all the cases described in
the case matrix found in the new documentation.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-07 11:41:51 -07:00
Daniel Barkalow
63aff4fed9 [PATCH] Document git-ssh-pull and git-ssh-push
This fixes the documentation for git-ssh-push, as called by users (if you
run git-ssh-pull or git-ssh-push on one machine, the other runs on the
other machine, and they transfer data in the specified direction).

This also adds documentation for the -w option and for using filenames for
the commit-id (which does what you'd want: uses the source side's value,
not the value already on the target, even if you're running it on the
target).

It also credits me with the programs and the documentation for
git-ssh-push.

Someone who knows asciidoc should make sure I didn't mess up the
formatting. I'm only sure of the ascii part.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-06 19:49:45 -07:00
jon@blackcubes.dyndns.org
a3437b8c26 [PATCH] Modify git-rev-list to linearise the commit history in merge order.
This patch linearises the GIT commit history graph into merge order
which is defined by invariants specified in Documentation/git-rev-list.txt.

The linearisation produced by this patch is superior in an objective sense
to that produced by the existing git-rev-list implementation in that
the linearisation produced is guaranteed to have the minimum number of
discontinuities, where a discontinuity is defined as an adjacent pair of
commits in the output list which are not related in a direct child-parent
relationship.

With this patch a graph like this:

	a4 ---
	| \   \
	|  b4 |
	|/ |  |
	a3 |  |
	|  |  |
	a2 |  |
	|  |  c3
	|  |  |
	|  |  c2
	|  b3 |
	|  | /|
	|  b2 |
	|  |  c1
	|  | /
	|  b1
	a1 |
	|  |
	a0 |
	| /
	root

Sorts like this:

	= a4
	| c3
	| c2
	| c1
	^ b4
	| b3
	| b2
	| b1
	^ a3
	| a2
	| a1
	| a0
	= root

Instead of this:

	= a4
	| c3
	^ b4
	| a3
	^ c2
	^ b3
	^ a2
	^ b2
	^ c1
	^ a1
	^ b1
	^ a0
	= root

A test script, t/t6000-rev-list.sh, includes a test which demonstrates
that the linearisation produced by --merge-order has less discontinuities
than the linearisation produced by git-rev-list without the --merge-order
flag specified. To see this, do the following:

	cd t
	./t6000-rev-list.sh
	cd trash
	cat actual-default-order
	cat actual-merge-order

The existing behaviour of git-rev-list is preserved, by default. To obtain
the modified behaviour, specify --merge-order or --merge-order --show-breaks
on the command line.

This version of the patch has been tested on the git repository and also on the linux-2.6
repository and has reasonable performance on both - ~50-100% slower than the original algorithm.

This version of the patch has incorporated a functional equivalent of the Linus' output limiting
algorithm into the merge-order algorithm itself. This operates per the notes associated
with Linus' commit 337cb3fb8d.

This version has incorporated Linus' feedback regarding proposed changes to rev-list.c.
(see: [PATCH] Factor out filtering in rev-list.c)

This version has improved the way sort_first_epoch marks commits as uninteresting.

For more details about this change, refer to Documentation/git-rev-list.txt
and http://blackcubes.dyndns.org/epoch/.

Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-06 09:07:26 -07:00
Petr Baudis
9b63f50148 [PATCH] Make git-update-cache --force-remove regular
Make the --force-remove flag behave same as --add, --remove and
--replace. This means I can do

	git-update-cache --force-remove -- file1.c file2.c

which is probably saner and also makes it easier to use in cg-rm.

Signed-off-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-05 16:57:23 -07:00
Junio C Hamano
418aaf847a [PATCH] rename git-rpush and git-rpull to git-ssh-push and git-ssh-pull
In preparation for 1.0 release, this makes the command names
consistent with others in git-*-pull family.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-05 16:12:27 -07:00
Junio C Hamano
1a93a7662d [PATCH] Documentation: describe git extended diff headers.
The documentation failed to describe "diff --git" extended diff
headers, so add some.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-05 15:23:57 -07:00
Junio C Hamano
4a1332d04b [PATCH] Documentation: describe diff tweaking.
This adds documentation for the diffcore mechanism and explains
how numeric parameters to -B/-C/-M options affect the output,
which was left "black magic" so far.

The documentation is not connected to any of the other asciidoc
nodes yet.  Awaiting for suggestions, fixes and help from other
people.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-05 15:23:57 -07:00
Junio C Hamano
a48e1d67e1 [PATCH] pull: gracefully recover from delta retrieval failure.
This addresses a concern raised by Jason McMullan in the mailing
list discussion.  After retrieving and storing a potentially
deltified object, pull logic tries to check and fulfil its delta
dependency.  When the pull procedure is killed at this point,
however, there was no easy way to recover by re-running pull,
since next run would have found that we already have that
deltified object and happily reported success, without really
checking its delta dependency is satisfied.

This patch introduces --recover option to git-*-pull family
which causes them to re-validate dependency of deltified objects
we are fetching.  A new test t5100-delta-pull.sh covers such a
failure mode.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-05 14:18:00 -07:00
Junio C Hamano
ce24067549 [PATCH] diff: Fix docs and add -O to diff-helper.
This patch updates diff documentation and usage strings:

 - clarify the semantics of -R.  It is not "output in reverse";
   rather, it is "I will feed diff backwards".  Semantically
   they are different when -C is involved.

 - describe -O in usage strings of diff-* brothers.  It was
   implemented, documented but not described in usage text.

Also it adds -O to diff-helper.  Like -S (and unlike -M/-C/-B),
this option can work on sanitized diff-raw output produced by
the diff-* brothers.  While we are at it, the call it makes to
diffcore is cleaned up to use the diffcore_std() like everybody
else, and the declaration for the low level diffcore routines
are moved from diff.h (public) to diffcore.h (private between
diff.c and diffcore backends).

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-03 11:23:03 -07:00
Rene Scharfe
d3a15c49d4 [PATCH] git-tar-tree: small doc update
document difference in behaviour w/ regard to tree vs.  commit and
correct author information.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-02 18:30:08 -07:00
Linus Torvalds
a7b209091a Clarify git-diff-cache semantics in the tutorial.
Adam Kropelin points out that it wasn't all that clear
at all what the thing does. This hopefully helps a bit.
2005-06-02 17:15:32 -07:00
Junio C Hamano
4a62b61939 [PATCH] Handle deltified object correctly in git-*-pull family.
When a remote repository is deltified, we need to get the
objects that a deltified object we want to obtain is based upon.
The initial parts of each retrieved SHA1 file is inflated and
inspected to see if it is deltified, and its base object is
asked from the remote side when it is.  Since this partial
inflation and inspection has a small performance hit, it can
optionally be skipped by giving -d flag to git-*-pull commands.
This flag should be used only when the remote repository is
known to have no deltified objects.

Rsync transport does not have this problem since it fetches
everything the remote side has.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-02 15:48:33 -07:00
Linus Torvalds
cc29f73285 Run the tutorial through ispell once more
People are making fun of me for being a bad speeler.
2005-06-02 07:58:41 -07:00
Linus Torvalds
f35ca9ed3e tutorial.txt: start describing how to copy repositories
Both locally and remotely.
2005-06-01 17:48:33 -07:00
Linus Torvalds
81bb573ed8 Update tutorial for simplified "git" script.
Use "git commit" instead of "git-commit-script", and talk about using
"git log" before introducing the more complex "git-whatchanged".

In short, try to make it feel a bit more normal to those poor souls
using CVS.

Do some whitspace edits too, to make the side notes stand out a bit
more.
2005-06-01 09:27:22 -07:00
Linus Torvalds
837eedf41b tutorial.txt: fix typos and a'git-whatchanged' example
Pointed out by Junio. I kant't speel.
2005-06-01 07:39:36 -07:00
Linus Torvalds
8c7fa2478e Add first cut at a simple git tutorial.
This really is very basic stuff, no branches, no merging, no CVS
imports. Let's start small.
2005-05-31 19:50:34 -07:00
Junio C Hamano
af5323e027 [PATCH] Add -O<orderfile> option to diff-* brothers.
A new diffcore filter diffcore-order is introduced.  This takes
a text file each of whose line is a shell glob pattern.  Patches
that match a glob pattern on an earlier line in the file are
output before patches that match a later line, and patches that
do not match any glob pattern are output last.

A typical orderfile for git project probably should look like
this:

    README
    Makefile
    Documentation
    *.h
    *.c

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-30 18:10:46 -07:00
Junio C Hamano
f345b0a066 [PATCH] Add -B flag to diff-* brothers.
A new diffcore transformation, diffcore-break.c, is introduced.

When the -B flag is given, a patch that represents a complete
rewrite is broken into a deletion followed by a creation.  This
makes it easier to review such a complete rewrite patch.

The -B flag takes the same syntax as the -M and -C flags to
specify the minimum amount of non-source material the resulting
file needs to have to be considered a complete rewrite, and
defaults to 99% if not specified.

As the new test t4008-diff-break-rewrite.sh demonstrates, if a
file is a complete rewrite, it is broken into a delete/create
pair, which can further be subjected to the usual rename
detection if -M or -C is used.  For example, if file0 gets
completely rewritten to make it as if it were rather based on
file1 which itself disappeared, the following happens:

    The original change looks like this:

	file0     --> file0' (quite different from file0)
	file1     --> /dev/null

    After diffcore-break runs, it would become this:

	file0     --> /dev/null
	/dev/null --> file0'
	file1     --> /dev/null

    Then diffcore-rename matches them up:

	file1     --> file0'

The internal score values are finer grained now.  Earlier
maximum of 10000 has been raised to 60000; there is no user
visible changes but there is no reason to waste available bits.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-30 10:35:49 -07:00
Junio C Hamano
ddafa7e933 [PATCH] diff-helper: Fix R/C score parsing under -z flag.
The score number that follow R/C status were parsed but the
parse pointer was not updated, causing the entire line to become
unrecognized.  This patch fixes this problem.

There was a test missing to catch this breakage, which this
commit adds as t4009-diff-rename-4.sh.  The diff-raw tests used
in related t4005-diff-rename-2.sh (the same test without -z) and
t4007-rename-3.sh were stricter than necessarily, despite that
the comment for the tests said otherwise.  This patch also
corrects them.

The documentation is updated to say that the status can
optionally be followed by a number called "score"; it does not
have to stay similarity index forever and there is no reason to
limit it only to C and R.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-30 10:35:49 -07:00
Junio C Hamano
e25de75696 [PATCH] Pickaxe fixes.
A bug in the command line argument parsing code was making
pickaxe not to work at all in diff-cache and diff-files commands.
Embarrassingly enough, the working pickaxe in diff-tree tells me
that it was not working in these two commands from day one.
This patch fixes it.

Also updates the documentation to describe the --pickaxe-all option.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-29 11:42:29 -07:00
Junio C Hamano
6af1f0192f [PATCH] Rewrite ls-tree to behave more like "/bin/ls -a"
This is a complete rewrite of ls-tree to make it behave more
like what "/bin/ls -a" does in the current working directory.

Namely, the changes are:

 - Unlike the old ls-tree behaviour that used paths arguments to
   restrict output (not that it worked as intended---as pointed
   out in the mailing list discussion, it was quite incoherent),
   this rewrite uses paths arguments to specify what to show.

 - Without arguments, it implicitly uses the root level as its
   sole argument ("/bin/ls -a" behaves as if "." is given
   without argument).

 - Without -r (recursive) flag, it shows the named blob (either
   file or symlink), or the named tree and its immediate
   children.

 - With -r flag, it shows the named path, and recursively
   descends into it if it is a tree.

 - With -d flag, it shows the named path and does not show its
   children even if the path is a tree, nor descends into it
   recursively.

This is still request-for-comments patch.  There is no mailing
list consensus that this proposed new behaviour is a good one.

The patch to t/t3100-ls-tree-restrict.sh illustrates
user-visible behaviour changes.  Namely:

 * "git-ls-tree $tree path1 path0" lists path1 first and then
   path0.  It used to use paths as an output restrictor and
   showed output in cache entry order (i.e. path0 first and then
   path1) regardless of the order of paths arguments.

 * "git-ls-tree $tree path2" lists path2 and its immediate
   children but having explicit paths argument does not imply
   recursive behaviour anymore, hence paths/baz is shown but not
   paths/baz/b.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-29 11:40:40 -07:00
Thomas Glanzmann
0746b62001 [PATCH] Document the --root switch of git-diff-tree
Signed-off-by: Thomas Glanzmann <sithglan@stud.uni-erlangen.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-29 10:59:18 -07:00
Jason McMullan
6d3a5077dd [PATCH] ls-tree matching multiple paths
Enhance git-ls-tree to allow optional 'match paths' that
restricts the output of git-ls-tree.  This is useful to retrieve
a single file's SHA1 out of a tree without creating an index.

[JC: I added the test case]

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 15:18:55 -07:00
Junio C Hamano
4cae1a967a [PATCH] show changed tree objects with recursive git-diff-tree
This adds a "-t" flag to tell the raw diff output to include the tree
objects in the output when doing a recursive diff.

Since that's how the non-recursive output already handles trees and the
flag thus doesn't make sense without "-r", I made "-t" imply "-r".

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-25 09:32:54 -07:00
Junio C Hamano
b1c006dd65 [PATCH] Update git-diff-cache documentation.
The recent diff updates gave diff-cache the same ability to
filter paths, which was not properly documented.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-23 19:17:06 -07:00
Junio C Hamano
b6d8f309d9 [PATCH] diff-raw format update take #2.
This changes the diff-raw format again, following the mailing
list discussion.  The new format explicitly expresses which one
is a rename and which one is a copy.

The documentation and tests are updated to match this change.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-23 16:23:10 -07:00
Linus Torvalds
6f97a894d6 Fix up git-fsck-cache documentation
Notably, the "--unreachable" flag no longer depends on specified heads,
and we should document what happens if no heads are given.
2005-05-22 14:32:26 -07:00
David Greaves
2aef5bbae9 [PATCH] Docs - delta object
Added delta documentation

Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-22 11:07:22 -07:00
David Greaves
6c84e2e0c7 [PATCH] Docs - include README in git.txt
Include the README in the git.txt

Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-22 11:07:22 -07:00
David Greaves
b2bf34d6c5 [PATCH] Docs - Makefile update
A Makefile that works just fine when the 6 character patch is applied
to asciidoc

Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-22 11:07:22 -07:00
Junio C Hamano
81e50eabf0 [PATCH] The diff-raw format updates.
Update the diff-raw format as Linus and I discussed, except that
it does not use sequence of underscore '_' letters to express
nonexistence.  All '0' mode is used for that purpose instead.

The new diff-raw format can express rename/copy, and the earlier
restriction that -M and -C _must_ be used with the patch format
output is no longer necessary.  The patch makes -M and -C flags
independent of -p flag, so you need to say git-whatchanged -M -p
to get the diff/patch format.

Updated are both documentations and tests.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-21 22:49:19 -07:00
Junio C Hamano
52e9578985 [PATCH] Introducing software archaeologist's tool "pickaxe".
This steals the "pickaxe" feature from JIT and make it available
to the bare Plumbing layer.  From the command line, the user
gives a string he is intersted in.

Using the diff-core infrastructure previously introduced, it
filters the differences to limit the output only to the diffs
between <src> and <dst> where the string appears only in one but
not in the other.  For example:

 $ ./git-rev-list HEAD | ./git-diff-tree -Sdiff-tree-helper --stdin -M

would show the diffs that touch the string "diff-tree-helper".

In real software-archaeologist application, you would typically
look for a few to several lines of code and see where that code
came from.

The "pickaxe" module runs after "rename/copy detection" module,
so it even crosses the file rename boundary, as the above
example demonstrates.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-21 09:58:03 -07:00
Junio C Hamano
427dcb4bca [PATCH] Diff overhaul, adding half of copy detection.
This introduces the diff-core, the layer between the diff-tree
family and the external diff interface engine.  The calls to the
interface diff-tree family uses (diff_change and diff_addremove)
have not changed and will not change.  The purpose of the
diff-core layer is to provide an infrastructure to transform the
set of differences sent from the applications, before sending
them to the external diff interface.

The recently introduced rename detection code has been rewritten
to use the diff-core facility.  When applications send in
separate creates and deletes, matching ones are transformed into
a single rename-and-edit diff, and sent out to the external diff
interface as such.

This patch also enhances the rename detection code further to be
able to detect copies.  Currently this happens only as long as
copy sources appear as part of the modified files, but there
already is enough provision for callers to report unmodified
files to diff-core, so that they can be also used as copy source
candidates.  Extending the callers this way will be done in a
separate patch.

Please see and marvel at how well this works by trying out the
newly added t/t4003-diff-rename-1.sh test script.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-21 09:58:03 -07:00
Junio C Hamano
e59363822f [PATCH] Document -R option for git-diff-tree.
Obviously we would want to document this as well.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-20 08:00:01 -07:00
Junio C Hamano
57fe64a40d [PATCH] diff overhaul
This cleans up the way calls are made into the diff core from diff-tree
family and diff-helper.  Earlier, these programs had "if
(generating_patch)" sprinkled all over the place, but those ugliness are
gone and handled uniformly from the diff core, even when not generating
patch format.

This also allowed diff-cache and diff-files to acquire -R
(reverse) option to generate diff in reverse.  Users of
diff-tree can swap two trees easily so I did not add -R there.

[ Linus' note: I'll add -R to "diff-tree" too, since a "commit
  diff" doesn't have another tree to switch around: the other
  tree is always the parent(s) of the commit ]

Also -M<digits-as-mantissa> suggestion made by Linus has been
implemented.

Documentation updates are also included.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-19 22:33:07 -07:00
Sebastian Kuzminsky
7984eabe07 [PATCH] manpage name conflict
This moves the git manpage to man7, since "git" isn't a direct command
per se.  It also does two other things:

    * Sort of works around the asciidoc 6.0.3 bug where the manpages all
      get called "git.1".  It just renames them to what they should have
      been called.

    * Fixes a cut-n-paste bug in git-diff-helper.txt that was making
      asciidoc choke.
2005-05-19 09:58:44 -07:00
Junio C Hamano
415e96c8b7 [PATCH] Implement git-checkout-cache -u to update stat information in the cache.
With -u flag, git-checkout-cache picks up the stat information
from newly created file and updates the cache.  This removes the
need to run git-update-cache --refresh immediately after running
git-checkout-cache.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-19 09:50:57 -07:00
Junio C Hamano
5c97558c9a [PATCH] Detect renames in diff family.
This rips out the rename detection engine from diff-helper and moves it
to the diff core, and updates the internal calling convention used by
diff-tree family into the diff core.  In order to give the same option
name to diff-tree family as well as to diff-helper, I've changed the
earlier diff-helper '-r' option to '-M' (stands for Move; sorry but the
natural abbreviation 'r' for 'rename' is already taken for 'recursive').

Although I did a fair amount of test with the git-diff-tree with
existing rename commits in the core GIT repository, this should still be
considered beta (preview) release.  This patch depends on the diff-delta
infrastructure just committed.

This implements almost everything I wanted to see in this series of
patch, except a few minor cleanups in the calling convention into diff
core, but that will be a separate cleanup patch.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-19 08:59:40 -07:00
Junio C Hamano
915838c3cb [PATCH] Diff-helper update
This patch adds a framework and a stub implementation of rename
detection to diff-helper program.

The current stub code is just enough to detect pure renames in
diff-tree output and not fancier.  The plan is perhaps to use
the same delta code when Nico's delta storage patch is merged
for similarity evaluation purposes.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-18 11:16:24 -07:00
Junio C Hamano
902b92e00e [PATCH 3/3] Rename git-diff-tree-helper to git-diff-helper (part 2).
It used to be that diff-tree needed helper support to parse its
raw output to generate diffs, but these days git-diff-* family
produces the same output and the helper is not tied to diff-tree
anymore.  Drop "tree" from its name.

This follows the "rename only" commit to adjust the contents of
the files involved.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-15 02:06:05 +02:00
Junio C Hamano
99665af5c0 [PATCH 2/3] Rename git-diff-tree-helper to git-diff-helper.
It used to be that diff-tree needed helper support to parse its
raw output to generate diffs, but these days git-diff-* family
produces the same output and the helper is not tied to diff-tree
anymore.  Drop "tree" from its name.

This commit is done separately to record just the rename and no
file content changes. The changes in the renamed files are recorded
in the next commit.

Signed-off-by: Junio C Hamano <junkio@cox.net>

Bundled with the changes in the unrenamed files.

Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-15 02:05:03 +02:00
David Greaves
f77b100ada The Makefile is now aware of Documentation/ include directives
It makes the includers (diff commands documentation) depend on the includee
(diff format description).

Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-14 00:01:41 +02:00
Junio C Hamano
6ca4594312 [PATCH 3/3] Add git-ls-files -k.
When checkout-cache attempts to check out a non-directory where
a directory exists on the work tree, or to check out a file
under directory D when path D is a non-directory on the work
tree, the attempt fails.  Before running checkout-cache, the
user can run git-ls-files with the -k (killed) option to get a
list of such paths.  The tagged output format uses "K" to denote
them.  This is useful for Porcelain layer to be careful when
dealing with the recently corrected behaviour of checkout-cache.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-13 07:34:59 +02:00
Junio C Hamano
d81ed1b591 Adjust quoting styles for some environment variables in the documentation.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-10 20:54:57 -07:00
Petr Baudis
7ffeb8c24b Document git-merge-cache -o 2005-05-11 04:49:36 +02:00
David Greaves
b790abb874 [PATCH 4/4] split core-git.txt and update
Makefile for html and man

Signed-off-by: David Greaves <david@dgreaves.com>
2005-05-10 15:03:34 -07:00
David Greaves
c1bdacf97e [PATCH 3/4] split core-git.txt and update
Update git environment variable docs
Update first section of command docs (Manipulation commands section)

Signed-off-by: David Greaves <david@dgreaves.com>
2005-05-10 15:01:23 -07:00
David Greaves
204ee6a91b [PATCH 2/4] split core-git.txt and update
Rearrange commands in git.txt

Signed-off-by: David Greaves <david@dgreaves.com>
2005-05-10 14:59:56 -07:00
David Greaves
2cf565c53c [PATCH 1/4] split core-git.txt and update
Split the core-git.txt file
Formatting fix to the diff-format.txt

Signed-off-by: David Greaves <david@dgreaves.com>
2005-05-10 14:55:22 -07:00
Junio C Hamano
d19938ab60 Rename environment variables.
H. Peter Anvin mentioned that using SHA1_whatever as an
environment variable name is not nice and we should instead use
names starting with "GIT_" prefix to avoid conflicts.  Here is
what this patch does:

 * Renames the following environment variables:

    New name                           Old Name

    GIT_AUTHOR_DATE                    AUTHOR_DATE
    GIT_AUTHOR_EMAIL                   AUTHOR_EMAIL
    GIT_AUTHOR_NAME                    AUTHOR_NAME
    GIT_COMMITTER_EMAIL                COMMIT_AUTHOR_EMAIL
    GIT_COMMITTER_NAME                 COMMIT_AUTHOR_NAME
    GIT_ALTERNATE_OBJECT_DIRECTORIES   SHA1_FILE_DIRECTORIES
    GIT_OBJECT_DIRECTORY               SHA1_FILE_DIRECTORY

 * Introduces a compatibility macro, gitenv(), which does an
   getenv() and if it fails calls gitenv_bc(), which in turn
   picks up the value from old name while giving a warning about
   using an old name.

 * Changes all users of the environment variable to fetch
   environment variable with the new name using gitenv().

 * Updates the documentation and scripts shipped with Linus GIT
   distribution.

The transition plan is as follows:

 * We will keep the backward compatibility list used by gitenv()
   for now, so the current scripts and user environments
   continue to work as before.  The users will get warnings when
   they have old name but not new name in their environment to
   the stderr.

 * The Porcelain layers should start using new names.  However,
   just in case it ends up calling old Plumbing layer
   implementation, they should also export old names, taking
   values from the corresponding new names, during the
   transition period.

 * After a transition period, we would drop the compatibility
   support and drop gitenv().  Revert the callers to directly
   call getenv() but keep using the new names.

   The last part is probably optional and the transition
   duration needs to be set to a reasonable value.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-09 17:57:56 -07:00
David Greaves
03ea280249 [PATCH 2/2] core-git documentation update
Reformat core-git.txt to asciidoc format.
Includes split-docs.pl to create individual txt, html and man pages.

<JC> Editorial note.  I've updated to add git-diff-cache -m and
git-update-cache --replace description on top of the version
David posted to the GIT list and got his OK.

Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-08 14:44:20 -07:00
David Greaves
cf5af17e45 [PATCH 1/2] core-git documentation update
Sorts core-git.txt into alphabetical order

Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-08 12:49:48 -07:00
Junio C Hamano
192268c197 Add git-update-cache --replace option.
When "path" exists as a file or a symlink in the index, an
attempt to add "path/file" is refused because it results in file
vs directory conflict.  Similarly when "path/file1",
"path/file2", etc. exist, an attempt to add "path" as a file or
a symlink is refused.  With git-update-cache --replace, these
existing entries that conflict with the entry being added are
automatically removed from the cache, with warning messages.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-07 21:55:21 -07:00
Junio C Hamano
651df67bbc Fix usage string of git-diff-cache and add documentation of -m flag.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-07 01:11:00 -07:00
Junio C Hamano
5aad72f2bc [PATCH] Document --stdin, -m, -s, and -v flags to git-diff-tree
This updates the usage message string and Documentation/core-git.txt
to describe the new flags added to the git-diff-tree command.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-06 14:55:16 -07:00
Petr Baudis
20d37ef672 Steal -t option to git-ls-files from Cogito fork.
This backports the -t option git-ls-files in Cogito added to the Linus
version.

Signed-off-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-06 02:00:45 -07:00
Junio C Hamano
e78d97723c Implement -v (verbose) option for pull methods other than local transport.
This moves the private "say()" function to pull.c, renames it to
"pull_say()", and introduces a global variable "get_verbosely" that
makes the pull backends report what they fetch.  The -v option is
added to git-rpull and git-http-pull to match git-local-pull.

The documentation is updated to describe these pull commands.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-06 01:37:21 -07:00
Junio C Hamano
4df1e79507 Add documentation for the rest of commands.
This adds descriptions for the core GIT commands that were not
mentioned in the previous version.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-05 23:50:22 -07:00
Junio C Hamano
ac4e086929 Adjust core-git documentation to more recent Linus GIT.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-05 23:49:58 -07:00
David Greaves
c64b9b8860 Reference documentation for the core git commands.
Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-05-05 23:48:52 -07:00