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>
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>
git merge-recursive (and hence git merge) will present conflict hunks
in output something like what ‘diff3 -m’ produces if the
merge.conflictstyle configuration option is set to diff3.
There is a small difference from diff3: diff3 -m includes a label
for the merge base on the ||||||| line.
Tools familiar with the format and humans unfamiliar with the format
both can benefit from such a label. So mark the start of the text
from the merge bases with the heading "||||||| merged common
ancestors".
It would be nicer to use a more informative label. Perhaps someone
will provide one some day.
git rerere does not have trouble parsing the new output, and its
preimage ids are unchanged since it has its own code for re-creating
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>
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>
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>
The mempcpy() function was added in glibc 2.1. It is quite handy, so
add an implementation for cross-platform use.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git checkout --merge --conflict=diff3 can be used to present conflict
hunks including text from the common ancestor. The added information
is helpful for resolving a merge by hand, and merge tools tend to
understand it because it is very similar to what ‘diff3 -m’ produces.
Unlike current git, diff3 -m includes a label for the merge base on
the ||||||| line, and unfortunately, some tools cannot parse the
conflict hunks without it. Humans can benefit from a cue when
learning to interpreting the format, too. Mark the start of the text
from the old branch with a label based on the branch’s name.
git rerere does not have trouble parsing this output and its preimage
ids are unchanged since it includes its own code for recreating
conflict hunks. No other code in git tries to parse 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>
Commands using the merge_trees() machinery will present conflict hunks
in output something like what ‘diff3 -m’ produces if the
merge.conflictstyle configuration option is set to diff3. The output
lacks the name of the merge base on the ||||||| line of the output,
and tools can misparse the conflict hunks without it. Add a new
o->ancestor parameter to merge_trees() for use as a label for the
ancestor in conflict hunks.
If o->ancestor is NULL, the output format is as before. All callers
pass NULL for now.
If o->ancestor is non-NULL and both branches renamed the base file
to the same name, that name is included in the conflict hunk labels.
Even if o->ancestor is NULL I think this would be a good change, but
this patch only does it in the non-NULL case to ensure the output
format does not change where it might matter.
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>
The merge_file() function is a helper for ‘git read-tree’, which does
not respect the merge.conflictstyle option, so there is no need to
worry about what ancestor_name it should pass to ll_merge(). Add a
comment to this effect.
Signed-off-by: Jonathan Nieder <jrnieder@mgila.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git checkout --conflict=diff3 can be used to present conflicts hunks
including text from the common ancestor:
<<<<<<< ours
ourside
|||||||
original
=======
theirside
>>>>>>> theirs
The added information is helpful for resolving a merge by hand, and
merge tools can usually understand it without trouble because it looks
like output from ‘diff3 -m’.
diff3 includes a label for the merge base on the ||||||| line, and it
seems some tools (for example, Emacs 22’s smerge-mode) cannot parse
conflict hunks without such a label. Humans could use help in
interpreting the output, too. So change the marker for the start of the
text from the common ancestor to include the label “base”.
git rerere’s conflict identifiers are not affected: to parse conflict
hunks, rerere looks for whitespace after the ||||||| marker rather
than a newline, and to compute preimage ids, rerere has its own code
for creating conflict hunks. No other code in git tries to parse
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>
Commands using the ll_merge() function will present conflict hunks
imitating ‘diff3 -m’ output if the merge.conflictstyle configuration
option is set appropriately. Unlike ‘diff3 -m’, the output does not
include a label for the merge base on the ||||||| line of the output,
and some tools misparse the conflict hunks without that.
Add a new ancestor_label parameter to ll_merge() to give callers the
power to rectify this situation. If ancestor_label is NULL, the output
format is unchanged. All callers pass NULL for now.
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>
git merge-file --diff3 can be used to present conflicts hunks
including text from the common ancestor.
The added information is helpful for resolving a merge by hand, and
merge tools can usually grok it because it looks like output from
diff3 -m. However, ‘diff3’ includes a label for the merge base on the
||||||| line and some tools cannot parse conflict hunks without such a
label. Write the base-name as passed in a -L option (or the name of
the ancestor file by default) on that line.
git rerere will not have trouble parsing this output, since instead of
looking for a newline, it looks for whitespace after the |||||||
marker. Since rerere includes its own code for recreating conflict
hunks, conflict identifiers are unaffected. No other code in git tries
to parse 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>
The labels for the three participants in a potential conflict are all
optional arguments for the xdiff merge routine; if they are NULL, then
xdl_merge() can cope by omitting the labels from its output. Move
them to the xmparam structure to allow new callers to save some
keystrokes where they are not needed.
This also has the virtue of making the xdiff merge interface more
similar to merge_trees, which might make it easier to learn.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The ‘git checkout --conflict=diff3’ command can be used to
present conflicts hunks including text from the common ancestor:
<<<<<<< ours
ourside
|||||||
original
=======
theirside
>>>>>>> theirs
The added information is helpful for resolving merges by hand, and
merge tools can usually grok it because it is very similar to the
output from diff3 -m.
A subtle change can help more tools to understand the output. ‘diff3’
includes the name of the merge base on the ||||||| line of the output,
and some tools misparse the conflict hunks without it. Add a new
xmp->ancestor parameter to xdl_merge() for use with conflict style
XDL_MERGE_DIFF3 as a label on the ||||||| line for any conflict hunks.
If xmp->ancestor is NULL, the output format is unchanged. Thus, this
change only provides unexposed plumbing for the new feature; it does
not affect the outward behavior of git.
Requested-by: Stefan Monnier <monnier@iro.umontreal.ca>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Bert Wesarg <Bert.Wesarg@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We are about to change the format of the conflict hunks that
cherry-pick and revert write. Add tests checking the current behavior
first.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We are about to change the format of the conflict hunks that ‘checkout
--merge’ writes. Add tests checking the current behavior first.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/maint-add-ignored-dir:
tests for "git add ignored-dir/file" without -f
dir: fix COLLECT_IGNORED on excluded prefixes
t0050: mark non-working test as such
* ml/color-grep:
grep: Colorize selected, context, and function lines
grep: Colorize filename, line number, and separator
Add GIT_COLOR_BOLD_* and GIT_COLOR_BG_*
* cc/reset-keep:
Documentation: improve description of "git reset --keep"
reset: disallow using --keep when there are unmerged entries
reset: disallow "reset --keep" outside a work tree
Documentation: reset: describe new "--keep" option
reset: add test cases for "--keep" option
reset: add option "--keep" to "git reset"
* bg/apply-fix-blank-at-eof:
t3417: Add test cases for "rebase --whitespace=fix"
t4124: Add additional tests of --whitespace=fix
apply: Allow blank context lines to match beyond EOF
apply: Remove the quick rejection test
apply: Don't unnecessarily update line lengths in the preimage
* bw/union-merge-refactor:
merge-file: add option to select union merge favor
merge-file: add option to specify the marker size
refactor merge flags into xmparam_t
make union merge an xdl merge favor
* maint:
Update draft release notes to 1.7.0.3
fetch: Fix minor memory leak
fetch: Future-proof initialization of a refspec on stack
fetch: Check for a "^{}" suffix with suffixcmp()
daemon: parse_host_and_port SIGSEGV if port is specified
Makefile: Fix CDPATH problem
pull: replace unnecessary sed invocation
A temporary struct ref is allocated in store_updated_refs() but not
freed.
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The open-coded version to initialize each and every member will break
when a new member is added to the structure.
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Otherwise, we will check random bytes for ref names < 3 characters.
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Several tests did not use test_expect_success for their setup
commands. Putting these start commands into the testing framework
means both that errors during setup will be caught quickly and that
non-error text will be suppressed without -v.
Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This typo will lead to git-daemon dying any time the connect
string includes a port after the host= attribute. This can lead
for example to one of the following error messages on the client
side when someone tries git clone git://...:<port>.
When the daemon is running on localhost:
fatal: The remote end hung up unexpectedly
or when the daemon is connected through an ssh tunnel:
fatal: protocol error: bad line length character: erro
In the latter case 'erro' comes from the daemon's reply:
error: git-daemon died of signal 11
Signed-off-by: Imre Deak <imre.deak@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
GNU make’s target-specific variables facility has one weird facet: any
variables set for a given target apply to all of its dependencies,
too. For example, when running “make exec_cmd.o”, since exec_cmd.o
depends on GIT-CFLAGS, the variable assignment in
exec_cmd.s exec_cmd.o: ALL_CFLAGS += \
'-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' \
'-DBINDIR="$(bindir_relative_SQ)"' \
'-DPREFIX="$(prefix_SQ)"'
applies when refreshing GIT-CFLAGS, and the extra options get included
in the tracked compiler flags. If an object file like this is the
first target built, GIT-CFLAGS will appear to be out of date,
resulting in useless rebuilds and the dreaded “new build flags or
prefix” message.
This does not happen with every build because GIT-CFLAGS is only
refreshed once in a given “make” run, and usually the first target
does not set any variables. When this problem does rear its head, it
is very annoying.
So put target-specific flags in a separate EXTRA_CPPFLAGS variable
that is not included in $(TRACK_CFLAGS).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If CDPATH is set, "cd" prints its destination to stdout, causing
the common (cd a && tar cf - .) | (cd b && tar xf -) idiom to fail.
For example:
make -C templates DESTDIR='' install
make[1]: Entering directory `/users/e477610/exptool/src/git-1.7.0.2/templates'
install -d -m 755 '/home/e477610/exptool/share/git-core/templates'
(cd blt && gtar cf - .) | \
(cd '/home/e477610/exptool/share/git-core/templates' && umask 022 && gtar xof -)
gtar: This does not look like a tar archive
Most git scripts already protect against use of CDPATH through
git-sh-setup, but the Makefile doesn’t.
Reported-by: Michael Cox <mhcox@bluezoosoftware.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Getting the shortened branch name is as easy as using the shell's
parameter expansion.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
acd2a45 (Refuse updating the current branch in a non-bare repository
via push, 2009-02-11) changed the default to refuse such a push, but
it forgot to update the docs.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We already complete HEAD, of course, and might as well complete the other
common refs mentioned in the rev-parse man page: FETCH_HEAD, ORIG_HEAD, and
MERGE_HEAD.
Signed-off-by: Ian Ward Comfort <icomfort@stanford.edu>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Clarify the description of the 2-tree merge by defining the terms
which are used in the table, and by applying some small linguistic
changes.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Asciidoc takes the first non-space character in the first line of the
paragraph as a reference point for preformatted layout, so adjust to
that to make the table align.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* sd/format-patch-to:
send-email: add --no-cc, --no-to, and --no-bcc
format-patch: add --no-cc, --no-to, and --no-add-headers
format-patch: use a string_list for headers
Add 'git format-patch --to=' option and 'format.to' configuration variable.
* tc/http-cleanup:
remote-curl: init walker only when needed
remote-curl: use http_fetch_ref() instead of walker wrapper
http: init and cleanup separately from http-walker
http-walker: cleanup more thoroughly
http-push: remove "|| 1" to enable verbose check
t554[01]-http-push: refactor, add non-ff tests
t5541-http-push: check that ref is unchanged for non-ff test
* tc/transport-verbosity:
transport: update flags to be in running order
fetch and pull: learn --progress
push: learn --progress
transport->progress: use flag authoritatively
clone: support multiple levels of verbosity
push: support multiple levels of verbosity
fetch: refactor verbosity option handling into transport.[ch]
Documentation/git-push: put --quiet before --verbose
Documentation/git-pull: put verbosity options before merge/fetch ones
Documentation/git-clone: mention progress in -v
Conflicts:
transport.h
* ld/push-porcelain:
t5516: Use test_cmp when appropriate
git-push: add tests for git push --porcelain
git-push: make git push --porcelain print "Done"
git-push: send "To <remoteurl>" messages to the standard output in --porcelain mode
git-push: fix an advice message so it goes to stderr
Conflicts:
transport.c
* jh/notes: (33 commits)
Documentation: fix a few typos in git-notes.txt
notes: fix malformed tree entry
builtin-notes: Minor (mostly parse_options-related) fixes
builtin-notes: Add "copy" subcommand for copying notes between objects
builtin-notes: Misc. refactoring of argc and exit value handling
builtin-notes: Add -c/-C options for reusing notes
builtin-notes: Refactor handling of -F option to allow combining -m and -F
builtin-notes: Deprecate the -m/-F options for "git notes edit"
builtin-notes: Add "append" subcommand for appending to note objects
builtin-notes: Add "add" subcommand for adding notes to objects
builtin-notes: Add --message/--file aliases for -m/-F options
builtin-notes: Add "list" subcommand for listing note objects
Documentation: Generalize git-notes docs to 'objects' instead of 'commits'
builtin-notes: Add "prune" subcommand for removing notes for missing objects
Notes API: prune_notes(): Prune notes that belong to non-existing objects
t3305: Verify that removing notes triggers automatic fanout consolidation
builtin-notes: Add "remove" subcommand for removing existing notes
Teach builtin-notes to remove empty notes
Teach notes code to properly preserve non-notes in the notes tree
t3305: Verify that adding many notes with git-notes triggers increased fanout
...
Conflicts:
Makefile
As we walk the directory tree, if we see an ignored path, we
want to add it to the ignored list only if it matches any
pathspec that we were given. We used to check for the
pathspec to appear explicitly. E.g., if we see "subdir/file"
and it is excluded, we check to see if we have "subdir/file"
in our pathspec.
However, this interacts badly with the optimization to avoid
recursing into ignored subdirectories. If "subdir" as a
whole is ignored, then we never recurse, and consider only
whether "subdir" itself is in our pathspec. It would not
match a pathspec of "subdir/file" explicitly, even though it
is the reason that subdir/file would be excluded.
This manifests itself to the user as "git add subdir/file"
failing to correctly note that the pathspec was ignored.
This patch extends the in_pathspec logic to include prefix
directory case.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test is to prepare an empty file "camelcase" in the index, remove
and replace it with another file "CamelCase" with "1" as its contents
in the working tree, and add it to the index, in a repository configured
to be case insensitive.
However, the test actually checked ls-files knows about a pathname that
matches "camelcase" case insensitively. It didn't check if the added
contents actually was the updated one.
Mark the test as non-working.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
