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git-core/git.git
7 years agoMerge branch 'js/git-gui-commit-gpgsign' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:38 +0000 (16:49 -0700)]
Merge branch 'js/git-gui-commit-gpgsign' into maint

"git commit-tree" stopped reading commit.gpgsign configuration
variable that was meant for Porcelain "git commit" in Git 2.9; we
forgot to update "git gui" to look at the configuration to match
this change.

* js/git-gui-commit-gpgsign:
  git-gui: respect commit.gpgsign again

7 years agoMerge branch 'jk/fix-remote-curl-url-wo-proto' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:38 +0000 (16:49 -0700)]
Merge branch 'jk/fix-remote-curl-url-wo-proto' into maint

"git fetch http::/site/path" did not die correctly and segfaulted
instead.

* jk/fix-remote-curl-url-wo-proto:
  remote-curl: handle URLs without protocol

7 years agoMerge branch 'sy/git-gui-i18n-ja' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:37 +0000 (16:49 -0700)]
Merge branch 'sy/git-gui-i18n-ja' into maint

Update Japanese translation for "git-gui".

* sy/git-gui-i18n-ja:
  git-gui: update Japanese information
  git-gui: update Japanese translation
  git-gui: add Japanese language code
  git-gui: apply po template to Japanese translation
  git-gui: consistently use the same word for "blame" in Japanese
  git-gui: consistently use the same word for "remote" in Japanese

7 years agoMerge branch 'mr/vcs-svn-printf-ulong' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:37 +0000 (16:49 -0700)]
Merge branch 'mr/vcs-svn-printf-ulong' into maint

Code cleanup.

* mr/vcs-svn-printf-ulong:
  vcs-svn/fast_export: fix timestamp fmt specifiers

7 years agoMerge branch 'rs/unpack-trees-reduce-file-scope-global' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:36 +0000 (16:49 -0700)]
Merge branch 'rs/unpack-trees-reduce-file-scope-global' into maint

Code cleanup.

* rs/unpack-trees-reduce-file-scope-global:
  unpack-trees: pass checkout state explicitly to check_updates()

7 years agoMerge branch 'rs/strbuf-remove-fix' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:35 +0000 (16:49 -0700)]
Merge branch 'rs/strbuf-remove-fix' into maint

Code cleanup.

* rs/strbuf-remove-fix:
  strbuf: use valid pointer in strbuf_remove()

7 years agoMerge branch 'rs/checkout-some-states-are-const' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:35 +0000 (16:49 -0700)]
Merge branch 'rs/checkout-some-states-are-const' into maint

Code cleanup.

* rs/checkout-some-states-are-const:
  checkout: constify parameters of checkout_stage() and checkout_merged()

7 years agoMerge branch 'bw/pathspec-remove-unused-extern-decl' into maint
Junio C Hamano [Thu, 29 Sep 2016 23:49:34 +0000 (16:49 -0700)]
Merge branch 'bw/pathspec-remove-unused-extern-decl' into maint

Code cleanup.

* bw/pathspec-remove-unused-extern-decl:
  pathspec: remove unnecessary function prototypes

7 years agoStart preparing for 2.10.1
Junio C Hamano [Mon, 19 Sep 2016 20:54:50 +0000 (13:54 -0700)]
Start preparing for 2.10.1

Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoMerge branch 'sb/diff-cleanup' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:45 +0000 (13:51 -0700)]
Merge branch 'sb/diff-cleanup' into maint

Code cleanup.

* sb/diff-cleanup:
  diff: remove dead code
  diff: omit found pointer from emit_callback
  diff.c: use diff_options directly

7 years agoMerge branch 'ah/misc-message-fixes' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:45 +0000 (13:51 -0700)]
Merge branch 'ah/misc-message-fixes' into maint

Message cleanup.

* ah/misc-message-fixes:
  unpack-trees: do not capitalize "working"
  git-merge-octopus: do not capitalize "octopus"
  git-rebase--interactive: fix English grammar
  cat-file: put spaces around pipes in usage string
  am: put spaces around pipe in usage string

7 years agoMerge branch 'sb/transport-report-missing-submodule-on-stderr' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:45 +0000 (13:51 -0700)]
Merge branch 'sb/transport-report-missing-submodule-on-stderr' into maint

Message cleanup.

* sb/transport-report-missing-submodule-on-stderr:
  transport: report missing submodule pushes consistently on stderr

7 years agoMerge branch 'sb/xdiff-remove-unused-static-decl' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:44 +0000 (13:51 -0700)]
Merge branch 'sb/xdiff-remove-unused-static-decl' into maint

Code cleanup.

* sb/xdiff-remove-unused-static-decl:
  xdiff: remove unneeded declarations

7 years agoMerge branch 'js/t9903-chaining' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:44 +0000 (13:51 -0700)]
Merge branch 'js/t9903-chaining' into maint

Test fix.

* js/t9903-chaining:
  t9903: fix broken && chain

7 years agoMerge branch 'rs/hex2chr' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:43 +0000 (13:51 -0700)]
Merge branch 'rs/hex2chr' into maint

Code cleanup.

* rs/hex2chr:
  introduce hex2chr() for converting two hexadecimal digits to a character

7 years agoMerge branch 'rs/compat-strdup' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:42 +0000 (13:51 -0700)]
Merge branch 'rs/compat-strdup' into maint

Code cleanup.

* rs/compat-strdup:
  compat: move strdup(3) replacement to its own file

7 years agoMerge branch 'jk/squelch-false-warning-from-gcc-o3' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:41 +0000 (13:51 -0700)]
Merge branch 'jk/squelch-false-warning-from-gcc-o3' into maint

Compilation fix.

* jk/squelch-false-warning-from-gcc-o3:
  color_parse_mem: initialize "struct color" temporary
  error_errno: use constant return similar to error()

7 years agoMerge branch 'ep/use-git-trace-curl-in-tests' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:41 +0000 (13:51 -0700)]
Merge branch 'ep/use-git-trace-curl-in-tests' into maint

Update a few tests that used to use GIT_CURL_VERBOSE to use the
newer GIT_TRACE_CURL.

* ep/use-git-trace-curl-in-tests:
  t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var
  t5550-http-fetch-dumb.sh: use the GIT_TRACE_CURL environment var
  test-lib.sh: preserve GIT_TRACE_CURL from the environment
  t5541-http-push-smart.sh: use the GIT_TRACE_CURL environment var

7 years agoMerge branch 'js/t6026-clean-up' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:41 +0000 (13:51 -0700)]
Merge branch 'js/t6026-clean-up' into maint

A test spawned a short-lived background process, which sometimes
prevented the test directory from getting removed at the end of the
script on some platforms.

* js/t6026-clean-up:
  t6026-merge-attr: clean up background process at end of test case

7 years agoMerge branch 'jc/forbid-symbolic-ref-d-HEAD' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:40 +0000 (13:51 -0700)]
Merge branch 'jc/forbid-symbolic-ref-d-HEAD' into maint

"git symbolic-ref -d HEAD" happily removes the symbolic ref, but
the resulting repository becomes an invalid one.  Teach the command
to forbid removal of HEAD.

* jc/forbid-symbolic-ref-d-HEAD:
  symbolic-ref -d: do not allow removal of HEAD

7 years agoMerge branch 'jc/submodule-anchor-git-dir' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:40 +0000 (13:51 -0700)]
Merge branch 'jc/submodule-anchor-git-dir' into maint

Having a submodule whose ".git" repository is somehow corrupt
caused a few commands that recurse into submodules loop forever.

* jc/submodule-anchor-git-dir:
  submodule: avoid auto-discovery in prepare_submodule_repo_env()

7 years agoMerge branch 'jk/test-lib-drop-pid-from-results' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:39 +0000 (13:51 -0700)]
Merge branch 'jk/test-lib-drop-pid-from-results' into maint

The test framework left the number of tests and success/failure
count in the t/test-results directory, keyed by the name of the
test script plus the process ID.  The latter however turned out not
to serve any useful purpose.  The process ID part of the filename
has been removed.

* jk/test-lib-drop-pid-from-results:
  test-lib: drop PID from test-results/*.count

7 years agoMerge branch 'bh/diff-highlight-graph' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:38 +0000 (13:51 -0700)]
Merge branch 'bh/diff-highlight-graph' into maint

"diff-highlight" script (in contrib/) learned to work better with
"git log -p --graph" output.

* bh/diff-highlight-graph:
  diff-highlight: avoid highlighting combined diffs
  diff-highlight: add multi-byte tests
  diff-highlight: ignore test cruft
  diff-highlight: add support for --graph output
  diff-highlight: add failing test for handling --graph output
  diff-highlight: add some tests

7 years agoMerge branch 'po/range-doc' into maint
Junio C Hamano [Mon, 19 Sep 2016 20:51:37 +0000 (13:51 -0700)]
Merge branch 'po/range-doc' into maint

Clarify various ways to specify the "revision ranges" in the
documentation.

* po/range-doc:
  doc: revisions: sort examples and fix alignment of the unchanged
  doc: revisions: show revision expansion in examples
  doc: revisions - clarify reachability examples
  doc: revisions - define `reachable`
  doc: gitrevisions - clarify 'latter case' is revision walk
  doc: gitrevisions - use 'reachable' in page description
  doc: revisions: single vs multi-parent notation comparison
  doc: revisions: extra clarification of <rev>^! notation effects
  doc: revisions: give headings for the two and three dot notations
  doc: show the actual left, right, and boundary marks
  doc: revisions - name the left and right sides
  doc: use 'symmetric difference' consistently

7 years agovcs-svn/fast_export: fix timestamp fmt specifiers
Mike Ralphson [Wed, 14 Sep 2016 06:40:57 +0000 (06:40 +0000)]
vcs-svn/fast_export: fix timestamp fmt specifiers

Two instances of %ld being used for unsigned longs

Signed-off-by: Mike Ralphson <mike.ralphson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agounpack-trees: pass checkout state explicitly to check_updates()
René Scharfe [Tue, 13 Sep 2016 17:37:06 +0000 (19:37 +0200)]
unpack-trees: pass checkout state explicitly to check_updates()

Add a parameter for the struct checkout variable to check_updates()
instead of using a static global variable.  Passing it explicitly makes
object ownership and usage more easily apparent.  And we get rid of a
static variable; those can be problematic in library-like code.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agocheckout: constify parameters of checkout_stage() and checkout_merged()
René Scharfe [Tue, 13 Sep 2016 17:11:52 +0000 (19:11 +0200)]
checkout: constify parameters of checkout_stage() and checkout_merged()

Document the fact that checkout_stage() and checkout_merged() don't
change the objects passed to them by adding the modifier const.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agopathspec: remove unnecessary function prototypes
Brandon Williams [Tue, 13 Sep 2016 16:52:51 +0000 (09:52 -0700)]
pathspec: remove unnecessary function prototypes

A few functions were removed in 5a76aff1 ("add: convert to use
parse_pathspec", 2013-07-14), but we forgot to remove their external
declarations from pathspec.h while doing so.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agostrbuf: use valid pointer in strbuf_remove()
René Scharfe [Tue, 13 Sep 2016 16:40:22 +0000 (18:40 +0200)]
strbuf: use valid pointer in strbuf_remove()

The fourth argument of strbuf_splice() is passed to memcpy(3), which is
not supposed to handle NULL pointers.  Let's be extra careful and use a
valid empty string instead.  It even shortens the source code. :)

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoMerge tag 'l10n-2.10.0-rnd2.3' of git://github.com/git-l10n/git-po into maint
Junio C Hamano [Mon, 12 Sep 2016 22:23:42 +0000 (15:23 -0700)]
Merge tag 'l10n-2.10.0-rnd2.3' of git://github.com/git-l10n/git-po into maint

l10n-2.10.0-rnd2.3

* tag 'l10n-2.10.0-rnd2.3' of git://github.com/git-l10n/git-po:
  l10n: zh_CN: review for git v2.10.0 l10n
  l10n: zh_CN: fixed some typos for git 2.10.0
  l10n: pt_PT: update Portuguese repository info
  l10n: pt_PT: update Portuguese translation

7 years agoMerge branch 'js/commit-gpgsign' of ../git-gui into js/git-gui-commit-gpgsign
Junio C Hamano [Sun, 11 Sep 2016 21:53:26 +0000 (14:53 -0700)]
Merge branch 'js/commit-gpgsign' of ../git-gui into js/git-gui-commit-gpgsign

* 'js/commit-gpgsign' of ../git-gui:
  git-gui: respect commit.gpgsign again

7 years agogit-gui: respect commit.gpgsign again
Johannes Schindelin [Fri, 9 Sep 2016 12:28:24 +0000 (14:28 +0200)]
git-gui: respect commit.gpgsign again

As of v2.9.0, `git commit-tree` no longer heeds the `commit.gpgsign`
config setting. This broke committing with GPG signature in Git GUI.

This fixes https://github.com/git-for-windows/git/issues/850

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agol10n: zh_CN: review for git v2.10.0 l10n
Ray Chen [Wed, 7 Sep 2016 10:03:04 +0000 (18:03 +0800)]
l10n: zh_CN: review for git v2.10.0 l10n

Signed-off-by: Ray Chen <oldsharp@gmail.com>
7 years agol10n: zh_CN: fixed some typos for git 2.10.0
Jiang Xin [Mon, 5 Sep 2016 15:26:21 +0000 (23:26 +0800)]
l10n: zh_CN: fixed some typos for git 2.10.0

Reviewed-by: Ray <tvvocold@163.com>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
7 years agoStart maintenance track for 2.10.x series
Junio C Hamano [Fri, 9 Sep 2016 04:39:38 +0000 (21:39 -0700)]
Start maintenance track for 2.10.x series

7 years agoPrepare for 2.9.4
Junio C Hamano [Fri, 9 Sep 2016 04:37:59 +0000 (21:37 -0700)]
Prepare for 2.9.4

Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoMerge branch 'hv/doc-commit-reference-style' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:36:03 +0000 (21:36 -0700)]
Merge branch 'hv/doc-commit-reference-style' into maint

A small doc update.

* hv/doc-commit-reference-style:
  SubmittingPatches: use gitk's "Copy commit summary" format
  SubmittingPatches: document how to reference previous commits

7 years agoMerge branch 'sg/reflog-past-root' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:36:02 +0000 (21:36 -0700)]
Merge branch 'sg/reflog-past-root' into maint

A small test clean-up for a topic introduced in v2.9.1 and later.

* sg/reflog-past-root:
  t1410: remove superfluous 'git reflog' from the 'walk past root' test

7 years agoMerge branch 'rs/mailinfo-lib' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:36:01 +0000 (21:36 -0700)]
Merge branch 'rs/mailinfo-lib' into maint

Small code clean-up.

* rs/mailinfo-lib:
  mailinfo: recycle strbuf in check_header()

7 years agoMerge branch 'jk/tighten-alloc' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:36:00 +0000 (21:36 -0700)]
Merge branch 'jk/tighten-alloc' into maint

Small code and comment clean-up.

* jk/tighten-alloc:
  receive-pack: use FLEX_ALLOC_MEM in queue_command()
  correct FLEXPTR_* example in comment

7 years agoMerge branch 'rs/use-strbuf-add-unique-abbrev' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:59 +0000 (21:35 -0700)]
Merge branch 'rs/use-strbuf-add-unique-abbrev' into maint

A small code clean-up.

* rs/use-strbuf-add-unique-abbrev:
  use strbuf_add_unique_abbrev() for adding short hashes

7 years agoMerge branch 'rs/merge-recursive-string-list-init' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:59 +0000 (21:35 -0700)]
Merge branch 'rs/merge-recursive-string-list-init' into maint

A small code clean-up.

* rs/merge-recursive-string-list-init:
  merge-recursive: use STRING_LIST_INIT_NODUP

7 years agoMerge branch 'rs/merge-add-strategies-simplification' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:58 +0000 (21:35 -0700)]
Merge branch 'rs/merge-add-strategies-simplification' into maint

A small code clean-up.

* rs/merge-add-strategies-simplification:
  merge: use string_list_split() in add_strategies()

7 years agoMerge branch 'ls/packet-line-protocol-doc-fix' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:57 +0000 (21:35 -0700)]
Merge branch 'ls/packet-line-protocol-doc-fix' into maint

Correct an age-old calco (is that a typo-like word for calc)
in the documentation.

* ls/packet-line-protocol-doc-fix:
  pack-protocol: fix maximum pkt-line size

7 years agoMerge branch 'bw/mingw-avoid-inheriting-fd-to-lockfile' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:56 +0000 (21:35 -0700)]
Merge branch 'bw/mingw-avoid-inheriting-fd-to-lockfile' into maint

The tempfile (hence its user lockfile) API lets the caller to open
a file descriptor to a temporary file, write into it and then
finalize it by first closing the filehandle and then either
removing or renaming the temporary file.  When the process spawns a
subprocess after obtaining the file descriptor, and if the
subprocess has not exited when the attempt to remove or rename is
made, the last step fails on Windows, because the subprocess has
the file descriptor still open.  Open tempfile with O_CLOEXEC flag
to avoid this (on Windows, this is mapped to O_NOINHERIT).

* bw/mingw-avoid-inheriting-fd-to-lockfile:
  mingw: ensure temporary file handles are not inherited by child processes
  t6026-merge-attr: child processes must not inherit index.lock handles

7 years agoMerge branch 'dg/document-git-c-in-git-config-doc' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:56 +0000 (21:35 -0700)]
Merge branch 'dg/document-git-c-in-git-config-doc' into maint

The "git -c var[=val] cmd" facility to append a configuration
variable definition at the end of the search order was described in
git(1) manual page, but not in git-config(1), which was more likely
place for people to look for when they ask "can I make a one-shot
override, and if so how?"

* dg/document-git-c-in-git-config-doc:
  doc: mention `git -c` in git-config(1)

7 years agoMerge branch 'js/no-html-bypass-on-windows' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:55 +0000 (21:35 -0700)]
Merge branch 'js/no-html-bypass-on-windows' into maint

On Windows, help.browser configuration variable used to be ignored,
which has been corrected.

* js/no-html-bypass-on-windows:
  Revert "display HTML in default browser using Windows' shell API"

7 years agoMerge branch 'jk/difftool-command-not-found' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:54 +0000 (21:35 -0700)]
Merge branch 'jk/difftool-command-not-found' into maint

"git difftool" by default ignores the error exit from the backend
commands it spawns, because often they signal that they found
differences by exiting with a non-zero status code just like "diff"
does; the exit status codes 126 and above however are special in
that they are used to signal that the command is not executable,
does not exist, or killed by a signal.  "git difftool" has been
taught to notice these exit status codes.

* jk/difftool-command-not-found:
  difftool: always honor fatal error exit codes

7 years agoMerge branch 'sb/checkout-explit-detach-no-advice' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:54 +0000 (21:35 -0700)]
Merge branch 'sb/checkout-explit-detach-no-advice' into maint

"git checkout --detach <branch>" used to give the same advice
message as that is issued when "git checkout <tag>" (or anything
that is not a branch name) is given, but asking with "--detach" is
an explicit enough sign that the user knows what is going on.  The
advice message has been squelched in this case.

* sb/checkout-explit-detach-no-advice:
  checkout: do not mention detach advice for explicit --detach option

7 years agoMerge branch 'rs/pull-signed-tag' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:54 +0000 (21:35 -0700)]
Merge branch 'rs/pull-signed-tag' into maint

When "git merge-recursive" works on history with many criss-cross
merges in "verbose" mode, the names the command assigns to the
virtual merge bases could have overwritten each other by unintended
reuse of the same piece of memory.

* rs/pull-signed-tag:
  commit: use FLEX_ARRAY in struct merge_remote_desc
  merge-recursive: fix verbose output for multiple base trees
  commit: factor out set_merge_remote_desc()
  commit: use xstrdup() in get_merge_parent()

7 years agoMerge branch 'js/test-lint-pathname' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:54 +0000 (21:35 -0700)]
Merge branch 'js/test-lint-pathname' into maint

The "t/" hierarchy is prone to get an unusual pathname; "make test"
has been taught to make sure they do not contain paths that cannot
be checked out on Windows (and the mechanism can be reusable to
catch pathnames that are not portable to other platforms as need
arises).

* js/test-lint-pathname:
  t/Makefile: ensure that paths are valid on platforms we care

7 years agoMerge branch 'js/mv-dir-to-new-directory' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:54 +0000 (21:35 -0700)]
Merge branch 'js/mv-dir-to-new-directory' into maint

"git mv dir non-existing-dir/" did not work in some environments
the same way as existing mainstream platforms.  The code now moves
"dir" to "non-existing-dir", without relying on rename("A", "B/")
that strips the trailing slash of '/'.

* js/mv-dir-to-new-directory:
  git mv: do not keep slash in `git mv dir non-existing-dir/`

7 years agoMerge branch 'js/import-tars-hardlinks' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:54 +0000 (21:35 -0700)]
Merge branch 'js/import-tars-hardlinks' into maint

"import-tars" fast-import script (in contrib/) used to ignore a
hardlink target and replaced it with an empty file, which has been
corrected to record the same blob as the other file the hardlink is
shared with.

* js/import-tars-hardlinks:
  import-tars: support hard links

7 years agoMerge branch 'ms/document-pack-window-memory-is-per-thread' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:53 +0000 (21:35 -0700)]
Merge branch 'ms/document-pack-window-memory-is-per-thread' into maint

* ms/document-pack-window-memory-is-per-thread:
  document git-repack interaction of pack.threads and pack.windowMemory

7 years agoMerge branch 'jk/push-force-with-lease-creation' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:53 +0000 (21:35 -0700)]
Merge branch 'jk/push-force-with-lease-creation' into maint

"git push --force-with-lease" already had enough logic to allow
ensuring that such a push results in creation of a ref (i.e. the
receiving end did not have another push from sideways that would be
discarded by our force-pushing), but didn't expose this possibility
to the users.  It does so now.

* jk/push-force-with-lease-creation:
  t5533: make it pass on case-sensitive filesystems
  push: allow pushing new branches with --force-with-lease
  push: add shorthand for --force-with-lease branch creation
  Documentation/git-push: fix placeholder formatting

7 years agoMerge branch 'jk/reflog-date' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:52 +0000 (21:35 -0700)]
Merge branch 'jk/reflog-date' into maint

The reflog output format is documented better, and a new format
--date=unix to report the seconds-since-epoch (without timezone)
has been added.

* jk/reflog-date:
  date: clarify --date=raw description
  date: add "unix" format
  date: document and test "raw-local" mode
  doc/pretty-formats: explain shortening of %gd
  doc/pretty-formats: describe index/time formats for %gd
  doc/rev-list-options: explain "-g" output formats
  doc/rev-list-options: clarify "commit@{Nth}" for "-g" option

7 years agoMerge branch 'jc/renormalize-merge-kill-safer-crlf' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:51 +0000 (21:35 -0700)]
Merge branch 'jc/renormalize-merge-kill-safer-crlf' into maint

"git merge" with renormalization did not work well with
merge-recursive, due to "safer crlf" conversion kicking in when it
shouldn't.

* jc/renormalize-merge-kill-safer-crlf:
  merge: avoid "safer crlf" during recording of merge results
  convert: unify the "auto" handling of CRLF

7 years agoMerge branch 'jk/common-main' into maint
Junio C Hamano [Fri, 9 Sep 2016 04:35:50 +0000 (21:35 -0700)]
Merge branch 'jk/common-main' into maint

There are certain house-keeping tasks that need to be performed at
the very beginning of any Git program, and programs that are not
built-in commands had to do them exactly the same way as "git"
potty does.  It was easy to make mistakes in one-off standalone
programs (like test helpers).  A common "main()" function that
calls cmd_main() of individual program has been introduced to
make it harder to make mistakes.

* jk/common-main:
  mingw: declare main()'s argv as const
  common-main: call git_setup_gettext()
  common-main: call restore_sigpipe_to_default()
  common-main: call sanitize_stdfds()
  common-main: call git_extract_argv0_path()
  add an extra level of indirection to main()

7 years agodiff: remove dead code
Stefan Beller [Wed, 7 Sep 2016 23:36:48 +0000 (16:36 -0700)]
diff: remove dead code

When `len < 1`, len has to be 0 or negative, emit_line will then remove the
first character and by then `len` would be negative. As this doesn't
happen, it is safe to assume it is dead code.

This continues to simplify the code, which was started in b8d9c1a66b
(2009-09-03,  diff.c: the builtin_diff() deals with only two-file
comparison).

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agodiff: omit found pointer from emit_callback
Stefan Beller [Wed, 7 Sep 2016 23:36:46 +0000 (16:36 -0700)]
diff: omit found pointer from emit_callback

We keep the actual data in the diff options, which are just as accessible.
Remove the pointer stored in struct emit_callback for readability.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agodiff.c: use diff_options directly
Stefan Beller [Wed, 7 Sep 2016 23:36:44 +0000 (16:36 -0700)]
diff.c: use diff_options directly

The value of `ecbdata->opt` is accessible via the short variable `o`
already, so let's use that instead.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agotransport: report missing submodule pushes consistently on stderr
Stefan Beller [Tue, 23 Aug 2016 21:40:08 +0000 (14:40 -0700)]
transport: report missing submodule pushes consistently on stderr

The surrounding advice is printed to stderr, but the list of submodules
is not. Make the report consistent by reporting everything to stderr.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agounpack-trees: do not capitalize "working"
Alex Henrie [Thu, 8 Sep 2016 04:34:53 +0000 (22:34 -0600)]
unpack-trees: do not capitalize "working"

In English, only proper nouns are capitalized.

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-merge-octopus: do not capitalize "octopus"
Alex Henrie [Thu, 8 Sep 2016 04:34:40 +0000 (22:34 -0600)]
git-merge-octopus: do not capitalize "octopus"

In English, only proper nouns are capitalized.

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-rebase--interactive: fix English grammar
Alex Henrie [Thu, 8 Sep 2016 04:34:17 +0000 (22:34 -0600)]
git-rebase--interactive: fix English grammar

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agocat-file: put spaces around pipes in usage string
Alex Henrie [Thu, 8 Sep 2016 04:34:00 +0000 (22:34 -0600)]
cat-file: put spaces around pipes in usage string

This makes the style a little more consistent with other usage strings,
and will resolve a warning at
https://www.softcatala.org/recursos/quality/git.html

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoam: put spaces around pipe in usage string
Alex Henrie [Thu, 8 Sep 2016 04:33:08 +0000 (22:33 -0600)]
am: put spaces around pipe in usage string

This makes the style a little more consistent with other usage strings,
and will resolve a warning at
https://www.softcatala.org/recursos/quality/git.html

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoremote-curl: handle URLs without protocol
Jeff King [Wed, 7 Sep 2016 20:06:42 +0000 (16:06 -0400)]
remote-curl: handle URLs without protocol

Generally remote-curl would never see a URL that did not
have "proto:" at the beginning, as that is what tells git to
run the "git-remote-proto" helper (and git-remote-http, etc,
are aliases for git-remote-curl).

However, the special syntax "proto::something" will run
git-remote-proto with only "something" as the URL. So a
malformed URL like:

  http::/example.com/repo.git

will feed the URL "/example.com/repo.git" to
git-remote-http. The resulting URL has no protocol, but the
code added by 372370f (http: use credential API to handle
proxy authentication, 2016-01-26) does not handle this case
and segfaults.

For the purposes of this code, we don't really care what the
exact protocol; only whether or not it is https. So let's
just assume that a missing protocol is not, and curl will
handle the real error (which is that the URL is nonsense).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agot5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var
Elia Pinto [Mon, 5 Sep 2016 10:24:44 +0000 (10:24 +0000)]
t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var

Use the new GIT_TRACE_CURL environment variable instead
of the deprecated GIT_CURL_VERBOSE.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agot5550-http-fetch-dumb.sh: use the GIT_TRACE_CURL environment var
Elia Pinto [Mon, 5 Sep 2016 19:19:40 +0000 (19:19 +0000)]
t5550-http-fetch-dumb.sh: use the GIT_TRACE_CURL environment var

Use the new GIT_TRACE_CURL environment variable instead
of the deprecated GIT_CURL_VERBOSE.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agotest-lib.sh: preserve GIT_TRACE_CURL from the environment
Elia Pinto [Mon, 5 Sep 2016 10:24:42 +0000 (10:24 +0000)]
test-lib.sh: preserve GIT_TRACE_CURL from the environment

Turning on this variable can be useful when debugging http
tests. It can break a few tests in t5541 if not set
to an absolute path but it is not a variable
that the user is likely to have enabled accidentally.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agot5541-http-push-smart.sh: use the GIT_TRACE_CURL environment var
Elia Pinto [Mon, 5 Sep 2016 10:24:41 +0000 (10:24 +0000)]
t5541-http-push-smart.sh: use the GIT_TRACE_CURL environment var

Use the new GIT_TRACE_CURL environment variable instead
of the deprecated GIT_CURL_VERBOSE.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agot6026-merge-attr: clean up background process at end of test case
Johannes Sixt [Wed, 7 Sep 2016 06:10:41 +0000 (08:10 +0200)]
t6026-merge-attr: clean up background process at end of test case

The process spawned in the hook uses the test's trash directory as CWD.
As long as it is alive, the directory cannot be removed on Windows.
Although the test succeeds, the 'test_done' that follows produces an
error message and leaves the trash directory around. Kill the process
before the test case advances.

Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agot9903: fix broken && chain
Johannes Sixt [Mon, 5 Sep 2016 19:00:47 +0000 (21:00 +0200)]
t9903: fix broken && chain

We might wonder why our && chain check does not catch this case:
The && chain check uses a strange exit code with the expectation that
the second or later part of a broken && chain would not exit with this
particular code.

This expectation does not work in this case because __git_ps1, being
the first command in the second part of the broken && chain, records
the current exit code, does its work, and finally returns to the caller
with the recorded exit code. This fools our && chain check.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agointroduce hex2chr() for converting two hexadecimal digits to a character
René Scharfe [Sat, 3 Sep 2016 15:59:20 +0000 (17:59 +0200)]
introduce hex2chr() for converting two hexadecimal digits to a character

Add and use a helper function that decodes the char value of two
hexadecimal digits.  It returns a negative number on error, avoids
running over the end of the given string and doesn't shift negative
values.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agocompat: move strdup(3) replacement to its own file
René Scharfe [Sat, 3 Sep 2016 15:59:15 +0000 (17:59 +0200)]
compat: move strdup(3) replacement to its own file

Move our implementation of strdup(3) out of compat/nedmalloc/ and
allow it to be used independently from USE_NED_ALLOCATOR.  The
original nedmalloc doesn't come with strdup() and doesn't need it.
Only _users_ of nedmalloc need it, which was added when we imported
it to our compat/ hierarchy.

This reduces the difference of our copy of nedmalloc from the
original, making it easier to update, and allows for easier testing
and reusing of our version of strdup().

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoMerge branch 'sy/i18n' of git-gui
Junio C Hamano [Wed, 7 Sep 2016 17:23:51 +0000 (10:23 -0700)]
Merge branch 'sy/i18n' of git-gui

* 'sy/i18n' of git-gui:
  git-gui: update Japanese information
  git-gui: update Japanese translation
  git-gui: add Japanese language code
  git-gui: apply po template to Japanese translation
  git-gui: consistently use the same word for "blame" in Japanese
  git-gui: consistently use the same word for "remote" in Japanese

7 years agogit-gui: update Japanese information
Satoshi Yasushima [Tue, 6 Sep 2016 16:02:21 +0000 (01:02 +0900)]
git-gui: update Japanese information

Signed-off-by: Satoshi Yasushima <s.yasushima@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-gui: update Japanese translation
Satoshi Yasushima [Tue, 6 Sep 2016 16:02:20 +0000 (01:02 +0900)]
git-gui: update Japanese translation

Signed-off-by: Satoshi Yasushima <s.yasushima@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-gui: add Japanese language code
Satoshi Yasushima [Tue, 6 Sep 2016 16:02:19 +0000 (01:02 +0900)]
git-gui: add Japanese language code

Signed-off-by: Satoshi Yasushima <s.yasushima@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-gui: apply po template to Japanese translation
Satoshi Yasushima [Tue, 6 Sep 2016 16:02:18 +0000 (01:02 +0900)]
git-gui: apply po template to Japanese translation

Signed-off-by: Satoshi Yasushima <s.yasushima@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-gui: consistently use the same word for "blame" in Japanese
Satoshi Yasushima [Tue, 6 Sep 2016 16:02:17 +0000 (01:02 +0900)]
git-gui: consistently use the same word for "blame" in Japanese

Signed-off-by: Satoshi Yasushima <s.yasushima@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agogit-gui: consistently use the same word for "remote" in Japanese
Satoshi Yasushima [Tue, 6 Sep 2016 16:02:16 +0000 (01:02 +0900)]
git-gui: consistently use the same word for "remote" in Japanese

Signed-off-by: Satoshi Yasushima <s.yasushima@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoxdiff: remove unneeded declarations
Stefan Beller [Sat, 3 Sep 2016 03:16:48 +0000 (20:16 -0700)]
xdiff: remove unneeded declarations

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agol10n: pt_PT: update Portuguese repository info
Vasco Almeida [Sat, 3 Sep 2016 12:10:32 +0000 (12:10 +0000)]
l10n: pt_PT: update Portuguese repository info

Change Portuguese l10n leadership to Vasco Almeida.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
7 years agol10n: pt_PT: update Portuguese translation
Vasco Almeida [Sat, 3 Sep 2016 12:02:22 +0000 (12:02 +0000)]
l10n: pt_PT: update Portuguese translation

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
7 years agoGit 2.10 v2.10.0
Junio C Hamano [Fri, 2 Sep 2016 16:05:47 +0000 (09:05 -0700)]
Git 2.10

Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agosymbolic-ref -d: do not allow removal of HEAD
Junio C Hamano [Thu, 1 Sep 2016 22:38:02 +0000 (15:38 -0700)]
symbolic-ref -d: do not allow removal of HEAD

If you delete the symbolic-ref HEAD from a repository, Git no longer
considers the repository valid, and even "git symbolic-ref HEAD
refs/heads/master" would not be able to recover from that state
(although "git init" can, but that is a sure sign that you are
talking about a "broken" repository).

In the spirit similar to afe5d3d5 ("symbolic ref: refuse non-ref
targets in HEAD", 2009-01-29), forbid removal of HEAD to avoid
corrupting a repository.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
7 years agoMerge tag 'l10n-2.10.0-rnd2.2' of git://github.com/git-l10n/git-po
Junio C Hamano [Fri, 2 Sep 2016 15:48:14 +0000 (08:48 -0700)]
Merge tag 'l10n-2.10.0-rnd2.2' of git://github.com/git-l10n/git-po

l10n-2.10.0-rnd2.2

* tag 'l10n-2.10.0-rnd2.2' of git://github.com/git-l10n/git-po:
  l10n: Updated Vietnamese translation for v2.10.0-rc2 (2757t)

7 years agoMerge branch 'master' of https://github.com/vnwildman/git
Jiang Xin [Fri, 2 Sep 2016 13:29:48 +0000 (21:29 +0800)]
Merge branch 'master' of https://github.com/vnwildman/git

* 'master' of https://github.com/vnwildman/git:
  l10n: Updated Vietnamese translation for v2.10.0-rc2 (2757t)

8 years agosubmodule: avoid auto-discovery in prepare_submodule_repo_env()
Junio C Hamano [Thu, 1 Sep 2016 20:51:48 +0000 (13:51 -0700)]
submodule: avoid auto-discovery in prepare_submodule_repo_env()

The function is used to set up the environment variable used in a
subprocess we spawn in a submodule directory.  The callers set up a
child_process structure, find the working tree path of one submodule
and set .dir field to it, and then use start_command() API to spawn
the subprocess like "status", "fetch", etc.

When this happens, we expect that the ".git" (either a directory or
a gitfile that points at the real location) in the current working
directory of the subprocess MUST be the repository for the submodule.

If this ".git" thing is a corrupt repository, however, because
prepare_submodule_repo_env() unsets GIT_DIR and GIT_WORK_TREE, the
subprocess will see ".git", thinks it is not a repository, and
attempt to find one by going up, likely to end up in finding the
repository of the superproject.  In some codepaths, this will cause
a command run with the "--recurse-submodules" option to recurse
forever.

By exporting GIT_DIR=.git, disable the auto-discovery logic in the
subprocess, which would instead stop it and report an error.

The test illustrates existing problems in a few callsites of this
function.  Without this fix, "git fetch --recurse-submodules", "git
status" and "git diff" keep recursing forever.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years agocolor_parse_mem: initialize "struct color" temporary
Jeff King [Wed, 31 Aug 2016 03:43:07 +0000 (23:43 -0400)]
color_parse_mem: initialize "struct color" temporary

Compiling color.c with gcc 6.2.0 using -O3 produces some
-Wmaybe-uninitialized false positives:

    color.c: In function ‘color_parse_mem’:
    color.c:189:10: warning: ‘bg.blue’ may be used uninitialized in this function [-Wmaybe-uninitialized]
       out += xsnprintf(out, len, "%c8;2;%d;%d;%d", type,
              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          c->red, c->green, c->blue);
          ~~~~~~~~~~~~~~~~~~~~~~~~~~
    color.c:208:15: note: ‘bg.blue’ was declared here
      struct color bg = { COLOR_UNSPECIFIED };
                   ^~
    [ditto for bg.green, bg.red, fg.blue, etc]

This is doubly confusing, because the declaration shows it
being initialized! Even though we do not explicitly
initialize the color components, an incomplete initializer
sets the unmentioned members to zero.

What the warning doesn't show is that we later do this:

  struct color c;
  if (!parse_color(&c, ...)) {
          if (fg.type == COLOR_UNSPECIFIED)
                fg = c;
          ...
  }

gcc is clever enough to realize that a struct assignment
from an uninitialized variable taints the destination. But
unfortunately it's _not_ clever enough to realize that we
only look at those members when type is set to COLOR_RGB, in
which case they are always initialized.

With -O2, gcc does not look into parse_color() and must
assume that "c" emerges fully initialized. With -O3, it
inlines parse_color(), and learns just enough to get
confused.

We can silence the false positive by initializing the
temporary "c". This also future-proofs us against
violating the type assumptions (the result would probably
still be buggy, but in a deterministic way).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years agoerror_errno: use constant return similar to error()
Jeff King [Wed, 31 Aug 2016 03:41:22 +0000 (23:41 -0400)]
error_errno: use constant return similar to error()

Commit e208f9c (make error()'s constant return value more
visible, 2012-12-15) introduced some macro trickery to make
the constant return from error() more visible to callers,
which in turn can help gcc produce better warnings (and
possibly even better code).

Later, fd1d672 (usage.c: add warning_errno() and
error_errno(), 2016-05-08) introduced another variant, and
subsequent commits converted some uses of error() to
error_errno(), losing the magic from e208f9c for those
sites.

As a result, compiling vcs-svn/svndiff.c with "gcc -O3"
produces -Wmaybe-uninitialized false positives (at least
with gcc 6.2.0). Let's give error_errno() the same
treatment, which silences these warnings.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years agoA few more fixes before the final 2.10
Junio C Hamano [Wed, 31 Aug 2016 17:21:05 +0000 (10:21 -0700)]
A few more fixes before the final 2.10

Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years agoMerge tag 'l10n-2.10.0-rnd2' of git://github.com/git-l10n/git-po
Junio C Hamano [Wed, 31 Aug 2016 17:04:14 +0000 (10:04 -0700)]
Merge tag 'l10n-2.10.0-rnd2' of git://github.com/git-l10n/git-po

l10n-2.10.0-rnd2

* tag 'l10n-2.10.0-rnd2' of git://github.com/git-l10n/git-po:
  l10n: zh_CN: for git v2.10.0 l10n round 2
  l10n: ca.po: update translation
  l10n: fr.po v2.10.0-rc2
  l10n: sv.po: Update Swedish translation (2757t0f0u)
  l10n: git.pot: v2.10.0 round 2 (12 new, 44 removed)
  l10n: Updated Vietnamese translation for v2.10.0 (2789t)
  l10n: pt_PT: update Portuguese translation
  l10n: pt_PT: merge git.pot
  l10n: ko.po: Update Korean translation
  l10n: git.pot: v2.10.0 round 1 (248 new, 56 removed)

8 years agoMerge branch 'ls/packet-line-protocol-doc-fix'
Junio C Hamano [Wed, 31 Aug 2016 17:03:51 +0000 (10:03 -0700)]
Merge branch 'ls/packet-line-protocol-doc-fix'

Correct an age-old calco (is that a typo-like word for calc)
in the documentation.

* ls/packet-line-protocol-doc-fix:
  pack-protocol: fix maximum pkt-line size

8 years agoMerge branch 'mh/blame-worktree'
Junio C Hamano [Wed, 31 Aug 2016 17:03:50 +0000 (10:03 -0700)]
Merge branch 'mh/blame-worktree'

* mh/blame-worktree:
  blame: fix segfault on untracked files

8 years agoMerge branch 'kw/patch-ids-optim'
Junio C Hamano [Wed, 31 Aug 2016 17:03:49 +0000 (10:03 -0700)]
Merge branch 'kw/patch-ids-optim'

* kw/patch-ids-optim:
  p3400: make test script executable

8 years agodiff-highlight: avoid highlighting combined diffs
Jeff King [Wed, 31 Aug 2016 05:05:38 +0000 (01:05 -0400)]
diff-highlight: avoid highlighting combined diffs

The algorithm in diff-highlight only understands how to look
at two sides of a diff; it cannot correctly handle combined
diffs with multiple preimages. Often highlighting does not
trigger at all for these diffs because the line counts do
not match up.  E.g., if we see:

  - ours
   -theirs
  ++resolved

we would not bother highlighting; it naively looks like a
single line went away, and then a separate hunk added
another single line.

But of course there are exceptions. E.g., if the other side
deleted the line, we might see:

  - ours
  ++resolved

which looks like we dropped " ours" and added "+resolved".
This is only a small highlighting glitch (we highlight the
space and the "+" along with the content), but it's also the
tip of the iceberg. Even if we learned to find the true
content here (by noticing we are in a 3-way combined diff
and marking _two_ characters from the front of the line as
uninteresting), there are other more complicated cases where
we really do need to handle a 3-way hunk.

Let's just punt for now; we can recognize combined diffs by
the presence of extra "@" symbols in the hunk header, and
treat them as non-diff content.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
8 years agodiff-highlight: add multi-byte tests
Jeff King [Wed, 31 Aug 2016 05:03:10 +0000 (01:03 -0400)]
diff-highlight: add multi-byte tests

Now that we have a test suite for diff highlight, we can
show off the improvements from 8d00662 (diff-highlight: do
not split multibyte characters, 2015-04-03).

While we're at it, we can also add another case that
_doesn't_ work: combining code points are treated as their
own unit, which means that we may stick colors between them
and the character they are modifying (with the result that
the color is not shown in an xterm, though it's possible
that other terminals err the other way, and show the color
but not the accent).  There's no fix here, but let's
document it as a failure.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>