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For example, this would allow cherry-picking or reverting patches from
a piece of history with a different end-of-line style, like so:
$ git revert -Xrenormalize old-problematic-commit
Currently that is possible with manual use of merge-recursive but the
cherry-pick/revert porcelain does not expose the functionality.
While at it, document the existing support for --strategy.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jn/cherry-pick-refresh-index:
cherry-pick/revert: transparently refresh index
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A stat-dirty index is not a detail that ought to concern the operator
of porcelain such as "git cherry-pick".
Without this change, a cherry-pick after copying a worktree with rsync
errors out with a misleading message.
$ git cherry-pick build/top
error: Your local changes to 'file.h' would be overwritten by merge. Aborting.
Please, commit your changes or stash them before you can merge.
Noticed-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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cherry-pick will segfault when transplanting a root commit if the --ff
option is used. This happens because the "parent" pointer is set to NULL
when the commit being cherry-picked has no parents. Later, when "parent"
is dereferenced, the cherry-pick segfaults.
Fix this by checking whether "parent" is NULL before dereferencing it and
add a test for this case of cherry-picking a root commit with --ff.
Reported-by: Zbyszek Szmek <zbyszek@in.waw.pl>
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jn/merge-renormalize:
merge-recursive --renormalize
rerere: never renormalize
rerere: migrate to parse-options API
t4200 (rerere): modernize style
ll-merge: let caller decide whether to renormalize
ll-merge: make flag easier to populate
Documentation/technical: document ll_merge
merge-trees: let caller decide whether to renormalize
merge-trees: push choice to renormalize away from low level
t6038 (merge.renormalize): check that it can be turned off
t6038 (merge.renormalize): try checkout -m and cherry-pick
t6038 (merge.renormalize): style nitpicks
Don't expand CRLFs when normalizing text during merge
Try normalizing files to avoid delete/modify conflicts when merging
Avoid conflicts when merging branches with mixed normalization
Conflicts:
builtin/rerere.c
t/t4200-rerere.sh
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* jn/cherry-revert-message-clean-up:
tests: fix syntax error in "Use advise() for hints" test
cherry-pick/revert: Use advise() for hints
cherry-pick/revert: Use error() for failure message
Introduce advise() to print hints
Eliminate “Finished cherry-pick/revert” message
t3508: add check_head_differs_from() helper function and use it
revert: improve success message by adding abbreviated commit sha1
revert: don't print "Finished one cherry-pick." if commit failed
revert: refactor commit code into a new run_git_commit() function
revert: report success when using option --strategy
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* cc/find-commit-subject:
blame: use find_commit_subject() instead of custom code
merge-recursive: use find_commit_subject() instead of custom code
bisect: use find_commit_subject() instead of custom code
revert: rename variables related to subject in get_message()
revert: refactor code to find commit subject in find_commit_subject()
revert: fix off by one read when searching the end of a commit subject
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When cherry-pick fails after picking a large series of commits, it can
be hard to pick out the error message and advice. Prefix the advice
with “hint: ” to help.
Before:
error: could not apply 7ab78c9... foo
After resolving the conflicts,
mark the corrected paths with 'git add <paths>' or 'git rm <paths>'
and commit the result with:
git commit -c 7ab78c9a7898b87127365478431289cb98f8d98f
After:
error: could not apply 7ab78c9... foo
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit -c 7ab78c9'
Noticed-by: Thomas Rast <trast@student.ethz.ch>
Encouraged-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When cherry-pick fails after picking a large series of commits, it can
be hard to pick out the error message and advice. Clarify the error
and prefix it with “error: ” to help.
Before:
Automatic cherry-pick failed. [...advice...]
After:
error: could not apply 7ab78c9... Do something neat.
[...advice...]
Noticed-by: Thomas Rast <trast@student.ethz.ch>
Encouraged-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Like error(), warn(), and die(), advise() prints a short message
with a formulaic prefix to stderr.
It is local to revert.c for now because I am not sure this is
the right API (we may want to take an array of advice lines or a
boolean argument for easy suppression of unwanted advice).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When cherry-pick was written (v0.99.6~63, 2005-08-27), “git commit”
was quiet, and the output from cherry-pick provided useful information
about the progress of a rebase.
Now next to the output from “git commit”, the cherry-pick notification
is so much noise (except for the name of the picked commit).
$ git cherry-pick ..topic
Finished cherry-pick of 499088b.
[detached HEAD 17e1ff2] Move glob module to libdpkg
Author: Guillem Jover <guillem@debian.org>
8 files changed, 12 insertions(+), 9 deletions(-)
rename {src => lib/dpkg}/glob.c (98%)
rename {src => lib/dpkg}/glob.h (93%)
Finished cherry-pick of ae947e1.
[detached HEAD 058caa3] libdpkg: Add missing symbols to Versions script
Author: Guillem Jover <guillem@debian.org>
1 files changed, 2 insertions(+), 0 deletions(-)
$
The noise is especially troublesome when sifting through the output of
a rebase or multiple cherry-pick that eventually failed.
With the commit subject, it is already not hard to figure out where
the commit came from. So drop the “Finished” message.
Cc: Christian Couder <chriscool@tuxfamily.org>
Cc: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach "git merge-recursive" a --renormalize option to enable the
merge.renormalize configuration. The --no-renormalize option can
be used to override it in the negative.
So in the future, you might be able to, e.g.:
git checkout -m -Xrenormalize otherbranch
or
git revert -Xrenormalize otherpatch
or
git pull --rebase -Xrenormalize
The bad part: merge.renormalize is still not honored for most
commands. And it reveals lots of places that -X has not been plumbed
in (so we get "git merge -Xrenormalize" but not much else).
NEEDSWORK: tests
Cc: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Generic-looking pointer variable "p" was used only to point at subject
string and had a rather lifespan.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A test case is added but the problem can only be seen when running
the test case with --valgrind.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead of saying "Finished one cherry-pick." or "Finished one revert.",
we now say "Finished cherry-pick of commit <abbreviated sha1>." or
"Finished revert of commit <abbreviated sha1>." which is more informative,
especially when cherry-picking or reverting many commits.
In case of failure the message is now "Automatic cherry-pick of commit
<abbreviated sha1> failed." instead of "Automatic cherry-pick failed."
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git cherry-pick foo" has always reported success with
"Finished one cherry-pick" but "cherry-pick --strategy"
does not print anything. So move the code to write that
message from do_recursive_merge() to do_cherry_pick()
so other strategies can share it.
This patch also refactors the code that prints a message
like "Automatic cherry-pick failed. <help message>". This
code was duplicated in both do_recursive_merge() and
do_pick_commit().
To do that, now do_recursive_merge() returns an int to signal
success or failure. And in case of failure we just return 1
from do_pick_commit() instead of doing "exit(1)" from either
do_recursive_merge() or do_pick_commit().
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Set options in struct rev_info directly so we can reuse the
arguments collected from parse_options without modification.
This is just a cleanup; no noticeable change is intended.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This can be useful to do something like:
git rev-list --reverse master -- README | git cherry-pick -n --stdin
without using xargs.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This makes it possible to pass many commits or ranges of
commits to "git cherry-pick" and to "git revert" to process
many commits instead of just one.
In fact commits are now enumerated with an equivalent of
git rev-list --no-walk "$@"
so all the following are now possible:
git cherry-pick master~2..master
git cherry-pick ^master~2 master
git cherry-pick master^ master
The following should be possible but does not work:
git cherry-pick -2 master
because "git rev-list --no-walk -2 master" only outputs
one commit as "--no-walk" seems to take over "-2".
And there is currently no way to continue cherry-picking or
reverting if there is a problem with one commit. It's also
not possible to abort the whole process. Some future work
should provide the --continue and --abort options to do
just that.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is needed because the following commits will make it
possible to cherry-pick many commits instead of just one.
So it will be possible to pass for example ranges of commits
to "git cherry-pick" and this means that it will not be
possible to use the arguments passed to "git cherry-pick" in
the help message.
The help message will have to use the sha1 of the currently
processed commit.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is needed because we are going to make it possible
to cherry-pick many commits instead of just one in the following
commits. And we will be able to do that by just calling
do_pick_commit() once for each commit to cherry-pick.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is needed by the following commits, because we are going
to cherry pick many commits instead of just one.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There was some dead code and option -x appeared in the short
help message of git revert (when running "git revert -h")
which was wrong.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* cc/revert-strategy:
revert: add "--strategy" option to choose merge strategy
merge: make function try_merge_command non static
merge: refactor code that calls "git merge-STRATEGY"
revert: refactor merge recursive code into its own function
revert: use strbuf to refactor the code that writes the merge message
Conflicts:
builtin/revert.c
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When cherry-picking, usually the new and old commit encodings are both
UTF-8. Most old iconv implementations do not support this trivial
conversion, so on old platforms, out->message remains NULL, and later
attempts to read it segfault.
Fix this by noticing the input and output encodings match and skipping
the iconv step, like the other reencode_string() call sites already do.
Also stop segfaulting on other iconv failures: if iconv fails for some
other reason, the best we can do is to pass the old message through.
This fixes a regression introduced in v1.7.1-rc0~15^2~2 (revert:
clarify label on conflict hunks, 2010-03-20).
Reported-by: Andreas Krey <a.krey@gmx.de>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jn/merge-diff3-label:
merge-recursive: add a label for ancestor
cherry-pick, revert: add a label for ancestor
revert: clarify label on conflict hunks
compat: add mempcpy()
checkout -m --conflict=diff3: add a label for ancestor
merge_trees(): add ancestor label parameter for diff3-style output
merge_file(): add comment explaining behavior wrt conflict style
checkout --conflict=diff3: add a label for ancestor
ll_merge(): add ancestor label parameter for diff3-style output
merge-file --diff3: add a label for ancestor
xdl_merge(): move file1 and file2 labels to xmparam structure
xdl_merge(): add optional ancestor label to diff3-style output
tests: document cherry-pick behavior in face of conflicts
tests: document format of conflicts from checkout -m
Conflicts:
builtin/revert.c
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This patch makes it possible to use a different merge strategy when
cherry-picking. This is usefull mainly for debugging purposes as it
allows to see if some failures are caused by the merge strategy used or
not.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code that is used to do a recursive merge is extracted from
the revert_or_cherry_pick() function and put into a new
do_recursive_merge() function.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code in this commit was written by Stephan Beyer for the sequencer
GSoC project:
git://repo.or.cz/git/sbeyer.git
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* cc/cherry-pick-ff:
revert: fix tiny memory leak in cherry-pick --ff
rebase -i: use new --ff cherry-pick option
Documentation: describe new cherry-pick --ff option
cherry-pick: add tests for new --ff option
revert: add --ff option to allow fast forward when cherry-picking
builtin/merge: make checkout_fast_forward() non static
parse-options: add parse_options_concat() to concat options
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When writing conflict hunks in ‘diff3 -m’ format, also add a label to
the common ancestor. Especially in a cherry-pick, it is not immediately
obvious without such a label what the common ancestor represents.
git rerere does not have trouble parsing the new output and its preimage
ids are unchanged since it includes its own code for recreating conflict
hunks. No other code in git parses conflict hunks.
Requested-by: Stefan Monnier <monnier@iro.umontreal.ca>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When reverting a commit, the commit being merged is not the commit
to revert itself but its parent. Add “parent of” to the conflict
hunk label to make this more clear.
The conflict hunk labels are all pieces of a single string written in
the new get_message() function. Avoid some complication by using
mempcpy to advance a pointer as the result is written.
Also free the corresponding temporary buffer (it was leaked before).
This is not important because it is a small one-time allocation. It
would become a memory leak if unnoticed when libifying revert.
This patch uses calls to strlen() instead of integer constants in some
places. GCC will compute the length at compile time; I am not sure
about other compilers, but this is not performance-critical anyway.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of
[torvalds@nehalem git]$ em buil<tab>
Display all 180 possibilities? (y or n)
[torvalds@nehalem git]$ em builtin-sh
builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c
builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o
[torvalds@nehalem git]$ em builtin-shor<tab>
builtin-shortlog.c builtin-shortlog.o
[torvalds@nehalem git]$ em builtin-shortlog.c
you get
[torvalds@nehalem git]$ em buil<tab> [type]
builtin/ builtin.h
[torvalds@nehalem git]$ em builtin [auto-completes to]
[torvalds@nehalem git]$ em builtin/sh<tab> [type]
shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o
[torvalds@nehalem git]$ em builtin/sho [auto-completes to]
[torvalds@nehalem git]$ em builtin/shor<tab> [type]
shortlog.c shortlog.o
[torvalds@nehalem git]$ em builtin/shortlog.c
which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.
NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead. I think bash has some cut-off
around 100 choices or something.
So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion. But you can
simulate that by using 'ls' instead, or something similar.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Jonathan Nieder
Junio C Hamano
Brandon Casey
Christian Couder
Linus Torvalds