git/git.git
23 months agoi18n: fix typos found during l10n for git 2.22.0
Jiang Xin [Sun, 2 Jun 2019 15:11:22 +0000 (23:11 +0800)]
i18n: fix typos found during l10n for git 2.22.0

Fix two typos introduced by the following commits:

31fba9d3b4 (diff-parseopt: convert --[src|dst]-prefix, 2019-03-24)
ed8b4132c8 (remote-curl: mark all error messages for translation,
  2019-03-05)

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agoRelNotes: minor typo fixes in 2.22.0 draft
Todd Zullinger [Sat, 1 Jun 2019 15:51:06 +0000 (11:51 -0400)]
RelNotes: minor typo fixes in 2.22.0 draft

Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agoGit 2.22-rc2 598/head v2.22.0-rc2
Junio C Hamano [Thu, 30 May 2019 17:56:29 +0000 (10:56 -0700)]
Git 2.22-rc2

Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agoMerge branch 'js/rebase-config-bitfix'
Junio C Hamano [Thu, 30 May 2019 17:50:47 +0000 (10:50 -0700)]
Merge branch 'js/rebase-config-bitfix'

* js/rebase-config-bitfix:
  rebase: replace incorrect logical negation by correct bitwise one

23 months agoMerge branch 'es/doc-gitsubmodules-markup'
Junio C Hamano [Thu, 30 May 2019 17:50:46 +0000 (10:50 -0700)]
Merge branch 'es/doc-gitsubmodules-markup'

Doc markup fix.

* es/doc-gitsubmodules-markup:
  gitsubmodules: align html and nroff lists

23 months agoMerge branch 'ja/diff-opt-typofix'
Junio C Hamano [Thu, 30 May 2019 17:50:46 +0000 (10:50 -0700)]
Merge branch 'ja/diff-opt-typofix'

Typofix.

* ja/diff-opt-typofix:
  diff: fix mistake in translatable strings

23 months agoMerge branch 'jt/clone-server-option'
Junio C Hamano [Thu, 30 May 2019 17:50:46 +0000 (10:50 -0700)]
Merge branch 'jt/clone-server-option'

A brown-paper-bag bugfix to a change already in 'master'.

* jt/clone-server-option:
  fetch-pack: send server options after command

23 months agoMerge branch 'sg/progress-off-by-one-fix'
Junio C Hamano [Thu, 30 May 2019 17:50:45 +0000 (10:50 -0700)]
Merge branch 'sg/progress-off-by-one-fix'

A brown-paper-bag bugfix to a change already in 'master'.

* sg/progress-off-by-one-fix:
  progress: avoid empty line when breaking the progress line

23 months agoMerge branch 'js/rebase-deprecate-preserve-merges'
Junio C Hamano [Thu, 30 May 2019 17:50:45 +0000 (10:50 -0700)]
Merge branch 'js/rebase-deprecate-preserve-merges'

A bit more leftover clean-up to deprepcate "rebase -p".

* js/rebase-deprecate-preserve-merges:
  rebase docs: recommend `-r` over `-p`
  docs: say that `--rebase=preserve` is deprecated
  tests: mark a couple more test cases as requiring `rebase -p`

23 months agoMerge branch 'sg/trace2-rename'
Junio C Hamano [Thu, 30 May 2019 17:50:45 +0000 (10:50 -0700)]
Merge branch 'sg/trace2-rename'

Rename environment variables that are used to control the "trace2"
mechanism to a more readable name.

* sg/trace2-rename:
  trace2: document the supported values of GIT_TRACE2* env variables
  trace2: rename environment variables to GIT_TRACE2*

23 months agoMerge branch 'jh/trace2'
Junio C Hamano [Thu, 30 May 2019 17:50:44 +0000 (10:50 -0700)]
Merge branch 'jh/trace2'

* jh/trace2:
  trace2: fix tracing when NO_PTHREADS is defined

23 months agoMerge branch 'nd/diff-parseopt'
Junio C Hamano [Thu, 30 May 2019 17:50:44 +0000 (10:50 -0700)]
Merge branch 'nd/diff-parseopt'

A brown-paper-bag bugfix to a change already in 'master'.

* nd/diff-parseopt:
  parse-options: check empty value in OPT_INTEGER and OPT_ABBREV
  diff-parseopt: restore -U (no argument) behavior
  diff-parseopt: correct variable types that are used by parseopt

23 months agoparse-options: check empty value in OPT_INTEGER and OPT_ABBREV
Nguyễn Thái Ngọc Duy [Wed, 29 May 2019 09:11:16 +0000 (16:11 +0700)]
parse-options: check empty value in OPT_INTEGER and OPT_ABBREV

When parsing the argument for OPT_INTEGER and OPT_ABBREV, we check if we
can parse the entire argument to a number with "if (*s)". There is one
missing check: if "arg" is empty to begin with, we fail to notice.

This could happen with long option by writing like

  git diff --inter-hunk-context= blah blah

Before 16ed6c97cc (diff-parseopt: convert --inter-hunk-context,
2019-03-24), --inter-hunk-context is handled by a custom parser
opt_arg() and does detect this correctly.

This restores the bahvior for --inter-hunk-context and make sure all
other integer options are handled the same (sane) way. For OPT_ABBREV
this is new behavior. But it makes it consistent with the rest.

PS. OPT_MAGNITUDE has similar code but git_parse_ulong() does detect
empty "arg". So it's good to go.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agodiff-parseopt: restore -U (no argument) behavior
Nguyễn Thái Ngọc Duy [Wed, 29 May 2019 09:11:15 +0000 (16:11 +0700)]
diff-parseopt: restore -U (no argument) behavior

Before d473e2e0e8 (diff.c: convert -U|--unified, 2019-01-27), -U and
--unified are implemented with a custom parser opt_arg() in diff.c. I
didn't check this code carefully and not realize that it's the
equivalent of PARSE_OPT_NONEG | PARSE_OPT_OPTARG.

In other words, if -U is specified without any argument, the option
should be accepted, and the default value should be used. Without
PARSE_OPT_OPTARG, parse_options() will reject this case and cause a
regression.

Reported-by: Bryan Turner <bturner@atlassian.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agodiff-parseopt: correct variable types that are used by parseopt
Nguyễn Thái Ngọc Duy [Wed, 29 May 2019 09:11:14 +0000 (16:11 +0700)]
diff-parseopt: correct variable types that are used by parseopt

Most number-related OPT_ macros store the value in an 'int'
variable. Many of the variables in 'struct diff_options' have a
different type, but during the conversion to using parse_options() I
failed to notice and correct.

The problem was reported on s360x which is a big-endian
architechture. The variable to store '-w' option in this case is
xdl_opts, 'long' type, 8 bytes. But since parse_options() assumes
'int' (4 bytes), it will store bits in the wrong part of xdl_opts. The
problem was found on little-endian platforms because parse_options()
will accidentally store at the right part of xdl_opts.

There aren't much to say about the type change (except that 'int' for
xdl_opts should still be big enough, since Windows' long is the same
size as 'int' and nobody has complained so far). Some safety checks may
be implemented in the future to prevent class of bugs.

Reported-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agorebase docs: recommend `-r` over `-p`
Johannes Schindelin [Tue, 28 May 2019 12:42:16 +0000 (05:42 -0700)]
rebase docs: recommend `-r` over `-p`

The `--preserve-merges` option is now deprecated in favor of
`--rebase-merges`; Let's stop recommending the former.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agodocs: say that `--rebase=preserve` is deprecated
Johannes Schindelin [Tue, 28 May 2019 12:42:15 +0000 (05:42 -0700)]
docs: say that `--rebase=preserve` is deprecated

As of Git v2.22.0, the `--preserve-merges` backend of `git rebase` will
be officially deprecated in favor of the `--rebase-merges` backend.
Consequently, `git pull --rebase=preserve` will also be deprected. State
this explicitly.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agotests: mark a couple more test cases as requiring `rebase -p`
Johannes Schindelin [Tue, 28 May 2019 12:42:14 +0000 (05:42 -0700)]
tests: mark a couple more test cases as requiring `rebase -p`

The `--preserve-merges` option has been deprecated, and as a consequence
we started to mark test cases that require that option to be supported,
in preparation for removing that support eventually.

Since we marked those test cases, a couple more crept into the test
suite, and with this patch, we mark them, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agofetch-pack: send server options after command
Jonathan Tan [Wed, 22 May 2019 20:08:22 +0000 (13:08 -0700)]
fetch-pack: send server options after command

Currently, if any server options are specified during a protocol v2
fetch, server options will be sent before "command=fetch". Write server
options to the request buffer in send_fetch_request() so that the
components of the request are sent in the correct order.

The protocol documentation states that the command must come first. The
Git server implementation in serve.c (see process_request() in that
file) tolerates any order of command and capability, which is perhaps
why we haven't noticed this. This was noticed when testing against a
JGit server implementation, which follows the documentation in this
regard.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agotrace2: fix tracing when NO_PTHREADS is defined
Jeff Hostetler [Tue, 21 May 2019 19:33:59 +0000 (12:33 -0700)]
trace2: fix tracing when NO_PTHREADS is defined

Teach trace2 TLS code to not rely on pthread_getspecific() when NO_PTHREADS
is defined.  Instead, always assume the context data of the main thread.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agorebase: replace incorrect logical negation by correct bitwise one
Johannes Schindelin [Tue, 21 May 2019 17:50:20 +0000 (10:50 -0700)]
rebase: replace incorrect logical negation by correct bitwise one

In bff014dac7d9 (builtin rebase: support the `verbose` and `diffstat`
options, 2018-09-04), we added a line that wanted to remove the
`REBASE_DIFFSTAT` bit from the flags, but it used an incorrect negation.

Found by Coverity.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agoprogress: avoid empty line when breaking the progress line
SZEDER Gábor [Sun, 19 May 2019 14:45:46 +0000 (16:45 +0200)]
progress: avoid empty line when breaking the progress line

Since commit 545dc345eb (progress: break too long progress bar lines,
2019-04-12) when splitting a too long progress line, sometimes it
looks as if a superfluous empty line were added between the title
line and the counters.

To make sure that the previously displayed progress line is completely
covered up when writing the new, shorter title line, we calculate how
many characters need to be overwritten with spaces.  Alas, this
calculation doesn't account for the newline character at the end of
the new title line, and resulted in printing one more space than
strictly necessary.  This extra space character doesn't matter, if the
length of the previous progress line was shorter than the width of the
terminal.  However, if the previous line matched the terminal width,
then this extra space made the new line longer, effectively adding
that empty line after the title line.

Fix this off-by-one to avoid that spurious empty line.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agotrace2: document the supported values of GIT_TRACE2* env variables
SZEDER Gábor [Sun, 19 May 2019 14:43:09 +0000 (16:43 +0200)]
trace2: document the supported values of GIT_TRACE2* env variables

The descriptions of the GIT_TRACE2* environment variables link to the
technical docs for further details on the supported values.  However,
a link like this only really works if the docs are viewed in a browser
and the full documentation is available.  OTOH, in 'man git' there are
no links to conveniently click on, and distro-shipped git packages
tend to include only the man pages, while the technical docs and the
docs in html format are in a separate 'git-doc' package.

So let's describe the supported values to make the manpage more
self-contained, but still keep the references to the technical docs
because the details of the SID, and the JSON and perf output formats
are definitely beyond the scope of 'man git'.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agotrace2: rename environment variables to GIT_TRACE2*
SZEDER Gábor [Sun, 19 May 2019 14:43:08 +0000 (16:43 +0200)]
trace2: rename environment variables to GIT_TRACE2*

For an environment variable that is supposed to be set by users, the
GIT_TR2* env vars are just too unclear, inconsistent, and ugly.

Most of the established GIT_* environment variables don't use
abbreviations, and in case of the few that do (GIT_DIR,
GIT_COMMON_DIR, GIT_DIFF_OPTS) it's quite obvious what the
abbreviations (DIR and OPTS) stand for.  But what does TR stand for?
Track, traditional, trailer, transaction, transfer, transformation,
transition, translation, transplant, transport, traversal, tree,
trigger, truncate, trust, or ...?!

The trace2 facility, as the '2' suffix in its name suggests, is
supposed to eventually supercede Git's original trace facility.  It's
reasonable to expect that the corresponding environment variables
follow suit, and after the original GIT_TRACE variables they are
called GIT_TRACE2; there is no such thing is 'GIT_TR'.

All trace2-specific config variables are, very sensibly, in the
'trace2' section, not in 'tr2'.

OTOH, we don't gain anything at all by omitting the last three
characters of "trace" from the names of these environment variables.

So let's rename all GIT_TR2* environment variables to GIT_TRACE2*,
before they make their way into a stable release.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agogitsubmodules: align html and nroff lists
Emily Shaffer [Wed, 1 May 2019 20:32:17 +0000 (13:32 -0700)]
gitsubmodules: align html and nroff lists

There appears to be a bug in the toolchain generating manpages from
lettered lists. When a list is enumerated with letters, the resulting
nroff shows numbers instead. Mostly this is harmless, but in the case of
gitsubmodules, the paragraph following the list refers back to each
bullet by letter. As a result, reading this documentation via `man
gitsubmodules` is hard to parse - readers must infer that a bug exists
and a refers to 1, b refers to 2, and c refers to 3 in the list above.

The problem specifically was introduced in ad47194; previously rather
than generating numerated lists the bulleted area was entirely
monospaced in HTML and shown in plaintext in nroff.

The bug seems to exist in docbook-xml - I've reported it on May 1 via
the docbook-apps mail list - but for now it may make more sense to just
work around the issue.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agoGit 2.22-rc1 v2.22.0-rc1
Junio C Hamano [Sun, 19 May 2019 07:46:42 +0000 (16:46 +0900)]
Git 2.22-rc1

Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 months agoMerge branch 'js/difftool-no-index'
Junio C Hamano [Sun, 19 May 2019 07:45:35 +0000 (16:45 +0900)]
Merge branch 'js/difftool-no-index'

The "--dir-diff" mode of "git difftool" is not useful in "--no-index"
mode; they are now explicitly marked as mutually incompatible.

* js/difftool-no-index:
  difftool --no-index: error out on --dir-diff (and don't crash)

23 months agoMerge branch 'jk/get-oid-indexed-object-name'
Junio C Hamano [Sun, 19 May 2019 07:45:35 +0000 (16:45 +0900)]
Merge branch 'jk/get-oid-indexed-object-name'

The codepath to parse :<path> that obtains the object name for an
indexed object has been made more robust.

* jk/get-oid-indexed-object-name:
  get_oid: handle NULL repo->index

23 months agoMerge branch 'jc/set-packet-header-signature-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:35 +0000 (16:45 +0900)]
Merge branch 'jc/set-packet-header-signature-fix'

Code clean-up.

* jc/set-packet-header-signature-fix:
  pkt-line: drop 'const'-ness of a param to set_packet_header()

23 months agoMerge branch 'cb/http-push-null-in-message-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:35 +0000 (16:45 +0900)]
Merge branch 'cb/http-push-null-in-message-fix'

Code clean-up.

* cb/http-push-null-in-message-fix:
  http-push: prevent format overflow warning with gcc >= 9

23 months agoMerge branch 'js/stash-in-c-use-builtin-doc'
Junio C Hamano [Sun, 19 May 2019 07:45:34 +0000 (16:45 +0900)]
Merge branch 'js/stash-in-c-use-builtin-doc'

Doc update.

* js/stash-in-c-use-builtin-doc:
  stash: document stash.useBuiltin

23 months agoMerge branch 'tz/test-lib-check-working-jgit'
Junio C Hamano [Sun, 19 May 2019 07:45:34 +0000 (16:45 +0900)]
Merge branch 'tz/test-lib-check-working-jgit'

A prerequiste check in the test suite to see if a working jgit is
available was made more robust.

* tz/test-lib-check-working-jgit:
  test-lib: try harder to ensure a working jgit

23 months agoMerge branch 'js/parseopt-unknown-cb-returns-an-enum'
Junio C Hamano [Sun, 19 May 2019 07:45:34 +0000 (16:45 +0900)]
Merge branch 'js/parseopt-unknown-cb-returns-an-enum'

Code clean-up.

* js/parseopt-unknown-cb-returns-an-enum:
  parse-options: adjust `parse_opt_unknown_cb()`s declared return type

23 months agoMerge branch 'ab/sha1dc'
Junio C Hamano [Sun, 19 May 2019 07:45:34 +0000 (16:45 +0900)]
Merge branch 'ab/sha1dc'

Update collision-detecting SHA-1 code to build properly on HP-UX.

* ab/sha1dc:
  sha1dc: update from upstream

23 months agoMerge branch 'js/rebase-i-label-shown-in-status-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:33 +0000 (16:45 +0900)]
Merge branch 'js/rebase-i-label-shown-in-status-fix'

"git status" did not know that the "label" instruction in the
todo-list "rebase -i -r" uses should not be shown as a hex object
name.

* js/rebase-i-label-shown-in-status-fix:
  status: fix display of rebase -ir's `label` command

23 months agoMerge branch 'es/check-non-portable-pre-5.10'
Junio C Hamano [Sun, 19 May 2019 07:45:33 +0000 (16:45 +0900)]
Merge branch 'es/check-non-portable-pre-5.10'

Developer support update.

* es/check-non-portable-pre-5.10:
  check-non-portable-shell: support Perl versions older than 5.10

23 months agoMerge branch 'ds/trace2-document-env-vars'
Junio C Hamano [Sun, 19 May 2019 07:45:33 +0000 (16:45 +0900)]
Merge branch 'ds/trace2-document-env-vars'

Doc update.

* ds/trace2-document-env-vars:
  trace2: add variable description to git.txt

23 months agoMerge branch 'js/fsmonitor-refresh-after-discarding-index'
Junio C Hamano [Sun, 19 May 2019 07:45:33 +0000 (16:45 +0900)]
Merge branch 'js/fsmonitor-refresh-after-discarding-index'

The fsmonitor interface got out of sync after the in-core index
file gets discarded, which has been corrected.

* js/fsmonitor-refresh-after-discarding-index:
  fsmonitor: force a refresh after the index was discarded
  fsmonitor: demonstrate that it is not refreshed after discard_index()

23 months agoMerge branch 'cm/notes-comment-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:32 +0000 (16:45 +0900)]
Merge branch 'cm/notes-comment-fix'

A stale in-code comment has been updated.

* cm/notes-comment-fix:
  notes: correct documentation of format_display_notes()

23 months agoMerge branch 'tt/no-ipv6-fallback-for-winxp'
Junio C Hamano [Sun, 19 May 2019 07:45:32 +0000 (16:45 +0900)]
Merge branch 'tt/no-ipv6-fallback-for-winxp'

Code cleanup.

* tt/no-ipv6-fallback-for-winxp:
  mingw: remove obsolete IPv6-related code

23 months agoMerge branch 'js/t5580-unc-alternate-test'
Junio C Hamano [Sun, 19 May 2019 07:45:32 +0000 (16:45 +0900)]
Merge branch 'js/t5580-unc-alternate-test'

An additional test for MinGW

* js/t5580-unc-alternate-test:
  t5580: verify that alternates can be UNC paths

23 months agoMerge branch 'ds/cvsexportcommit-force-text'
Junio C Hamano [Sun, 19 May 2019 07:45:31 +0000 (16:45 +0900)]
Merge branch 'ds/cvsexportcommit-force-text'

"git cvsexportcommit" running on msys did not expect cvsnt showed
"cvs status" output with CRLF line endings.

* ds/cvsexportcommit-force-text:
  cvsexportcommit: force crlf translation

23 months agoMerge branch 'sg/ci-libsvn-perl'
Junio C Hamano [Sun, 19 May 2019 07:45:31 +0000 (16:45 +0900)]
Merge branch 'sg/ci-libsvn-perl'

To run tests for Git SVN, our scripts for CI used to install the
git-svn package (in the hope that it would bring in the right
dependencies).  This has been updated to install the more direct
dependency, namely, libsvn-perl.

* sg/ci-libsvn-perl:
  ci: install 'libsvn-perl' instead of 'git-svn'

23 months agoMerge branch 'bl/t4253-exit-code-from-format-patch'
Junio C Hamano [Sun, 19 May 2019 07:45:31 +0000 (16:45 +0900)]
Merge branch 'bl/t4253-exit-code-from-format-patch'

Avoid patterns to pipe output from a git command to feed another
command in tests.

* bl/t4253-exit-code-from-format-patch:
  t4253-am-keep-cr-dos: avoid using pipes

23 months agoMerge branch 'ds/midx-too-many-packs'
Junio C Hamano [Sun, 19 May 2019 07:45:30 +0000 (16:45 +0900)]
Merge branch 'ds/midx-too-many-packs'

The code to generate the multi-pack idx file was not prepared to
see too many packfiles and ran out of open file descriptor, which
has been corrected.

* ds/midx-too-many-packs:
  midx: add packs to packed_git linked list
  midx: pass a repository pointer

23 months agoMerge branch 'en/unicode-in-refnames'
Junio C Hamano [Sun, 19 May 2019 07:45:30 +0000 (16:45 +0900)]
Merge branch 'en/unicode-in-refnames'

On a filesystem like HFS+, the names of the refs stored as filesystem
entities may become different from what the end-user expects, just
like files in the working tree get "renamed".  Work around the
mismatch by paying attention to the core.precomposeUnicode
configuration.

* en/unicode-in-refnames:
  Honor core.precomposeUnicode in more places

23 months agoMerge branch 'dl/difftool-mergetool'
Junio C Hamano [Sun, 19 May 2019 07:45:30 +0000 (16:45 +0900)]
Merge branch 'dl/difftool-mergetool'

Update "git difftool" and "git mergetool" so that the combinations
of {diff,merge}.{tool,guitool} configuration variables serve as
fallback settings of each other in a sensible order.

* dl/difftool-mergetool:
  difftool: fallback on merge.guitool
  difftool: make --gui, --tool and --extcmd mutually exclusive
  mergetool: fallback to tool when guitool unavailable
  mergetool--lib: create gui_mode function
  mergetool: use get_merge_tool function
  t7610: add mergetool --gui tests
  t7610: unsuppress output

23 months agoMerge branch 'mh/http-fread-api-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:29 +0000 (16:45 +0900)]
Merge branch 'mh/http-fread-api-fix'

A pair of private functions in http.c that had names similar to
fread/fwrite did not return the number of elements, which was found
to be confusing.

* mh/http-fread-api-fix:
  Make fread/fwrite-like functions in http.c more like fread/fwrite.

23 months agoMerge branch 'js/t6500-use-windows-pid-on-mingw'
Junio C Hamano [Sun, 19 May 2019 07:45:29 +0000 (16:45 +0900)]
Merge branch 'js/t6500-use-windows-pid-on-mingw'

Future-proof a test against an update to MSYS2 runtime v3.x series.

* js/t6500-use-windows-pid-on-mingw:
  t6500(mingw): use the Windows PID of the shell

23 months agoMerge branch 'jk/apache-lsan'
Junio C Hamano [Sun, 19 May 2019 07:45:29 +0000 (16:45 +0900)]
Merge branch 'jk/apache-lsan'

Allow tests that involve httpd to be run under leak sanitizer, just
like we can already do so under address sanitizer.

* jk/apache-lsan:
  t/lib-httpd: pass LSAN_OPTIONS through apache

23 months agoMerge branch 'nd/parse-options-aliases'
Junio C Hamano [Sun, 19 May 2019 07:45:28 +0000 (16:45 +0900)]
Merge branch 'nd/parse-options-aliases'

Attempt to use an abbreviated option in "git clone --recurs" is
responded by a request to disambiguate between --recursive and
--recurse-submodules, which is bad because these two are synonyms.
The parse-options API has been extended to define such synonyms
more easily and not produce an unnecessary failure.

* nd/parse-options-aliases:
  parse-options: don't emit "ambiguous option" for aliases

23 months agoMerge branch 'dl/branch-from-3dot-merge-base'
Junio C Hamano [Sun, 19 May 2019 07:45:28 +0000 (16:45 +0900)]
Merge branch 'dl/branch-from-3dot-merge-base'

"git branch new A...B" and "git checkout -b new A...B" have been
taught that in their contexts, the notation A...B means "the merge
base between these two commits", just like "git checkout A...B"
detaches HEAD at that commit.

* dl/branch-from-3dot-merge-base:
  branch: make create_branch accept a merge base rev
  t2018: cleanup in current test

23 months agoMerge branch 'js/commit-graph-parse-leakfix'
Junio C Hamano [Sun, 19 May 2019 07:45:28 +0000 (16:45 +0900)]
Merge branch 'js/commit-graph-parse-leakfix'

Leakfix.

* js/commit-graph-parse-leakfix:
  commit-graph: fix memory leak

23 months agoMerge branch 'jk/cocci-batch'
Junio C Hamano [Sun, 19 May 2019 07:45:28 +0000 (16:45 +0900)]
Merge branch 'jk/cocci-batch'

Optionally "make coccicheck" can feed multiple source files to
spatch, gaining performance while spending more memory.

* jk/cocci-batch:
  coccicheck: make batch size of 0 mean "unlimited"
  coccicheck: optionally batch spatch invocations

23 months agoMerge branch 'ab/perf-installed-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:28 +0000 (16:45 +0900)]
Merge branch 'ab/perf-installed-fix'

Performance test framework has been broken and measured the version
of Git that happens to be on $PATH, not the specified one to
measure, for a while, which has been corrected.

* ab/perf-installed-fix:
  perf-lib.sh: forbid the use of GIT_TEST_INSTALLED
  perf tests: add "bindir" prefix to git tree test results
  perf-lib.sh: remove GIT_TEST_INSTALLED from perf-lib.sh
  perf-lib.sh: make "./run <revisions>" use the correct gits
  perf aggregate: remove GIT_TEST_INSTALLED from --codespeed
  perf README: correct docs for 3c8f12c96c regression

23 months agoMerge branch 'id/windows-dep-aslr'
Junio C Hamano [Sun, 19 May 2019 07:45:27 +0000 (16:45 +0900)]
Merge branch 'id/windows-dep-aslr'

Allow DEP and ASLR for Windows build to for security hardening.

* id/windows-dep-aslr:
  mingw: enable DEP and ASLR
  mingw: do not let ld strip relocations

23 months agoMerge branch 'ab/trace2-typofix'
Junio C Hamano [Sun, 19 May 2019 07:45:27 +0000 (16:45 +0900)]
Merge branch 'ab/trace2-typofix'

Typofix.

* ab/trace2-typofix:
  trace2: fix up a missing "leave" entry point

23 months agoMerge branch 'nd/submodule-helper-incomplete-line-fix'
Junio C Hamano [Sun, 19 May 2019 07:45:27 +0000 (16:45 +0900)]
Merge branch 'nd/submodule-helper-incomplete-line-fix'

Typofix.

* nd/submodule-helper-incomplete-line-fix:
  submodule--helper: add a missing \n

23 months agoMerge branch 'cw/diff-highlight'
Junio C Hamano [Sun, 19 May 2019 07:45:26 +0000 (16:45 +0900)]
Merge branch 'cw/diff-highlight'

Portability fix for a diff-highlight tool (in contrib/).

* cw/diff-highlight:
  diff-highlight: use correct /dev/null for UNIX and Windows

23 months agoMerge branch 'dl/warn-tagging-a-tag'
Junio C Hamano [Sun, 19 May 2019 07:45:26 +0000 (16:45 +0900)]
Merge branch 'dl/warn-tagging-a-tag'

Typofix.

* dl/warn-tagging-a-tag:
  tag: fix typo in nested tagging hint

2 years agodiff: fix mistake in translatable strings
Jean-Noël Avila [Fri, 17 May 2019 19:26:19 +0000 (21:26 +0200)]
diff: fix mistake in translatable strings

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agopkt-line: drop 'const'-ness of a param to set_packet_header()
Junio C Hamano [Wed, 15 May 2019 01:42:35 +0000 (10:42 +0900)]
pkt-line: drop 'const'-ness of a param to set_packet_header()

The function's definition has a paramter of type "int" qualified as
"const".  The fact that the incoming parameter is used as read-only
in the fuction is an implementation detail that the callers should
not have to be told in the prototype declaring it (and "const" there
has no effect, as C passes parameters by value).

The prototype defined for the function in pkt-line.h lacked the
matching "const" for this reason, but apparently some compilers
(e.g. MS Visual C 2017) complain about the parameter type mismatch.

Let's squelch it by removing the "const" that is pointless in the
definition of a small and trivial function like this, which would
not help optimizing compilers nor reading humans that much.

Noticed-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agotest-lib: try harder to ensure a working jgit
Todd Zullinger [Wed, 15 May 2019 01:36:33 +0000 (21:36 -0400)]
test-lib: try harder to ensure a working jgit

The JGIT prereq uses `type jgit` to determine whether jgit is present.
While this is usually sufficient, it won't help if the jgit found is
badly broken.  This wastes time running tests which fail due to no fault
of our own.

Use `jgit --version` instead, to guard against cases where jgit is
present on the system, but will fail to run, e.g. because of some JRE
issue, or missing Java dependencies.  Checking that it gets far enough
to process the '--version' argument isn't perfect, but seems to be good
enough in practice.  It's also consistent with how we detect some other
dependencies, see e.g. the CURL and UNZIP prerequisites.

Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agoget_oid: handle NULL repo->index
Jeff King [Tue, 14 May 2019 13:54:55 +0000 (09:54 -0400)]
get_oid: handle NULL repo->index

When get_oid() and its helpers see an index name like ":.gitmodules",
they try to load the index on demand, like:

  if (repo->index->cache)
repo_read_index(repo);

However, that misses the case when "repo->index" itself is NULL; we'll
segfault in the conditional.

This never happens with the_repository; there we always point its index
field to &the_index. But a submodule repository may have a NULL index
field until somebody calls repo_read_index().

This bug is triggered by t7411, but it was hard to notice because it's
in an expect_failure block. That test was added by 2b1257e463 (t/helper:
add test-submodule-nested-repo-config, 2018-10-25). Back then we had no
easy way to access the .gitmodules blob of a submodule repo, so we
expected (and got) an error message to that effect. Later, d9b8b8f896
(submodule-config.c: use repo_get_oid for reading .gitmodules,
2019-04-16) started looking in the correct repo, which is when we
started triggering the segfault.

With this fix, the test starts passing (once we clean it up as its
comment instructs).

Note that as far as I know, this bug could not be triggered outside of
the test suite. It requires resolving an index name in a submodule, and
all of the code paths (aside from test-tool) which do that either load
the index themselves, or always pass the_repository.

Ultimately it comes from 3a7a698e93 (sha1-name.c: remove implicit
dependency on the_index, 2019-01-12), which replaced a check of
"the_index.cache" with "repo->index->cache". So even if there is another
way to trigger it, it wouldn't affect any versions before then.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agohttp-push: prevent format overflow warning with gcc >= 9
Carlo Marcelo Arenas Belón [Tue, 14 May 2019 21:11:17 +0000 (14:11 -0700)]
http-push: prevent format overflow warning with gcc >= 9

In function 'finish_request',
    inlined from 'process_response' at http-push.c:248:2:
http-push.c:587:4: warning: '%s' directive argument is null [-Wformat-overflow=]
  587 |    fprintf(stderr, "Unable to get pack file %s\n%s",
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  588 |     request->url, curl_errorstr);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

request->url is needed for the error message if there was a failure
during fetch but was being cleared unnecessarily earlier.

note that the leak is prevented by calling release_request unconditionally
at the end.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Suggested-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agostash: document stash.useBuiltin
Johannes Schindelin [Tue, 14 May 2019 09:19:15 +0000 (02:19 -0700)]
stash: document stash.useBuiltin

The stash.useBuiltin variable introduced in 90a462725e ("stash:
optionally use the scripted version again", 2019-02-25) was turned on by
default, but had no documentation.

Let's document it so that users who run into any stability issues with
the C rewrite know there's an escape hatch, and spell out that the
user should please report the bug when they have to turn off the
built-in stash.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agosha1dc: update from upstream
Ævar Arnfjörð Bjarmason [Mon, 13 May 2019 22:17:01 +0000 (00:17 +0200)]
sha1dc: update from upstream

Update sha1dc from the latest version by the upstream
maintainer[1]. See 07a20f569b ("Makefile: fix unaligned loads in
sha1dc with UBSan", 2019-03-12) for the last update.

This fixes an issue where HP-UX IA64 was wrongly detected as a
Little-endian instead of a Big-endian system, see [2] and [3].

1. https://github.com/cr-marcstevens/sha1collisiondetection/commit/855827c583bc30645ba427885caa40c5b81764d2
2. https://public-inbox.org/git/603989bd-f86d-c61d-c6f5-fb6748a65ba9@siemens.com/
3. https://github.com/cr-marcstevens/sha1collisiondetection/pull/50

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agoparse-options: adjust `parse_opt_unknown_cb()`s declared return type
Johannes Schindelin [Mon, 13 May 2019 22:43:17 +0000 (15:43 -0700)]
parse-options: adjust `parse_opt_unknown_cb()`s declared return type

In f41179f16ba2 (parse-options: avoid magic return codes, 2019-01-27),
the signature of the low-level parse-opt callback function was changed
to return an `enum`.

And while the implementations were changed, one declaration was left
unchanged, still claiming to return `int`.

This can potentially lead to problems, as compilers are free to choose
any integral type for an `enum` as long as it can represent all declared
values.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agoGit 2.22-rc0 v2.22.0-rc0
Junio C Hamano [Mon, 13 May 2019 14:40:13 +0000 (23:40 +0900)]
Git 2.22-rc0

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agoMerge branch 'jh/trace2'
Junio C Hamano [Mon, 13 May 2019 14:50:35 +0000 (23:50 +0900)]
Merge branch 'jh/trace2'

A few embarrassing bugfixes.

* jh/trace2:
  trace2: fix up a missing "leave" entry point
  trace2: fix incorrect function pointer check

2 years agoMerge branch 'cc/access-on-aix-workaround'
Junio C Hamano [Mon, 13 May 2019 14:50:35 +0000 (23:50 +0900)]
Merge branch 'cc/access-on-aix-workaround'

Workaround for standard-compliant but less-than-useful behaviour of
access(2) for the root user.

* cc/access-on-aix-workaround:
  git-compat-util: work around for access(X_OK) under root

2 years agoMerge branch 'pw/clean-sequencer-state-upon-final-commit'
Junio C Hamano [Mon, 13 May 2019 14:50:35 +0000 (23:50 +0900)]
Merge branch 'pw/clean-sequencer-state-upon-final-commit'

"git chery-pick" (and "revert" that shares the same runtime engine)
that deals with multiple commits got confused when the final step
gets stopped with a conflict and the user concluded the sequence
with "git commit".  Attempt to fix it by cleaning up the state
files used by these commands in such a situation.

* pw/clean-sequencer-state-upon-final-commit:
  fix cherry-pick/revert status after commit
  commit/reset: try to clean up sequencer state

2 years agoMerge branch 'pw/rebase-i-internal'
Junio C Hamano [Mon, 13 May 2019 14:50:34 +0000 (23:50 +0900)]
Merge branch 'pw/rebase-i-internal'

The internal implementation of "git rebase -i" has been updated to
avoid forking a separate "rebase--interactive" process.

* pw/rebase-i-internal:
  rebase -i: run without forking rebase--interactive
  rebase: use a common action enum
  rebase -i: use struct rebase_options in do_interactive_rebase()
  rebase -i: use struct rebase_options to parse args
  rebase -i: use struct object_id for squash_onto
  rebase -i: use struct commit when parsing options
  rebase -i: remove duplication
  rebase -i: combine rebase--interactive.c with rebase.c
  rebase: use OPT_RERERE_AUTOUPDATE()
  rebase: rename write_basic_state()
  rebase: don't translate trace strings
  sequencer: always discard index after checkout

2 years agoMerge branch 'jk/perf-aggregate-wo-libjson'
Junio C Hamano [Mon, 13 May 2019 14:50:34 +0000 (23:50 +0900)]
Merge branch 'jk/perf-aggregate-wo-libjson'

The script to aggregate perf result unconditionally depended on
libjson-perl even though it did not have to, which has been
corrected.

* jk/perf-aggregate-wo-libjson:
  t/perf: depend on perl JSON only when using --codespeed

2 years agoMerge branch 'dl/rev-tilde-doc-clarify'
Junio C Hamano [Mon, 13 May 2019 14:50:33 +0000 (23:50 +0900)]
Merge branch 'dl/rev-tilde-doc-clarify'

Docfix.

* dl/rev-tilde-doc-clarify:
  revisions.txt: remove ambibuity between <rev>:<path> and :<path>
  revisions.txt: mention <rev>~ form
  revisions.txt: mark optional rev arguments with []
  revisions.txt: change "rev" to "<rev>"

2 years agoMerge branch 'jc/make-dedup-ls-files-output'
Junio C Hamano [Mon, 13 May 2019 14:50:33 +0000 (23:50 +0900)]
Merge branch 'jc/make-dedup-ls-files-output'

A "ls-files" that emulates "find" to enumerate files in the working
tree resulted in duplicated Makefile rules that caused the build to
issue an unnecessary warning during a trial build after merge
conflicts are resolved in working tree *.h files but before the
resolved results are added to the index.  This has been corrected.

* jc/make-dedup-ls-files-output:
  Makefile: dedup list of files obtained from ls-files

2 years agoMerge branch 'jk/ls-files-doc-markup-fix'
Junio C Hamano [Mon, 13 May 2019 14:50:33 +0000 (23:50 +0900)]
Merge branch 'jk/ls-files-doc-markup-fix'

Docfix.

* jk/ls-files-doc-markup-fix:
  doc/ls-files: put nested list for "-t" option into block

2 years agoMerge branch 'jk/p5302-avoid-collision-check-cost'
Junio C Hamano [Mon, 13 May 2019 14:50:32 +0000 (23:50 +0900)]
Merge branch 'jk/p5302-avoid-collision-check-cost'

Fix index-pack perf test so that the repeated invocations always
run in an empty repository, which emulates the initial clone
situation better.

* jk/p5302-avoid-collision-check-cost:
  p5302: create the repo in each index-pack test

2 years agoMerge branch 'dl/no-extern-in-func-decl'
Junio C Hamano [Mon, 13 May 2019 14:50:32 +0000 (23:50 +0900)]
Merge branch 'dl/no-extern-in-func-decl'

Mechanically and systematically drop "extern" from function
declarlation.

* dl/no-extern-in-func-decl:
  *.[ch]: manually align parameter lists
  *.[ch]: remove extern from function declarations using sed
  *.[ch]: remove extern from function declarations using spatch

2 years agoMerge branch 'ew/repack-with-bitmaps-by-default'
Junio C Hamano [Mon, 13 May 2019 14:50:32 +0000 (23:50 +0900)]
Merge branch 'ew/repack-with-bitmaps-by-default'

The connectivity bitmaps are created by default in bare
repositories now; also the pathname hash-cache is created by
default to avoid making crappy deltas when repacking.

* ew/repack-with-bitmaps-by-default:
  pack-objects: default to writing bitmap hash-cache
  t5310: correctly remove bitmaps for jgit test
  repack: enable bitmaps by default on bare repos

2 years agoMerge branch 'js/partial-clone-connectivity-check'
Junio C Hamano [Mon, 13 May 2019 14:50:31 +0000 (23:50 +0900)]
Merge branch 'js/partial-clone-connectivity-check'

During an initial "git clone --depth=..." partial clone, it is
pointless to spend cycles for a large portion of the connectivity
check that enumerates and skips promisor objects (which by
definition is all objects fetched from the other side).  This has
been optimized out.

* js/partial-clone-connectivity-check:
  t/perf: add perf script for partial clones
  clone: do faster object check for partial clones

2 years agoMerge branch 'jh/trace2-sid-fix'
Junio C Hamano [Mon, 13 May 2019 14:50:31 +0000 (23:50 +0900)]
Merge branch 'jh/trace2-sid-fix'

Polishing of the new trace2 facility continues.  The system-level
configuration can specify site-wide trace2 settings, which can be
overridden with per-user configuration and environment variables.

* jh/trace2-sid-fix:
  trace2: fixup access problem on /etc/gitconfig in read_very_early_config
  trace2: update docs to describe system/global config settings
  trace2: make SIDs more unique
  trace2: clarify UTC datetime formatting
  trace2: report peak memory usage of the process
  trace2: use system/global config for default trace2 settings
  config: add read_very_early_config()
  trace2: find exec-dir before trace2 initialization
  trace2: add absolute elapsed time to start event
  trace2: refactor setting process starting time
  config: initialize opts structure in repo_read_config()

2 years agodifftool: fallback on merge.guitool
Denton Liu [Mon, 29 Apr 2019 06:21:20 +0000 (02:21 -0400)]
difftool: fallback on merge.guitool

In git-difftool.txt, it says

'git difftool' falls back to 'git mergetool' config variables when the
difftool equivalents have not been defined.

However, when `diff.guitool` is missing, it doesn't fallback to
anything. Make git-difftool fallback to `merge.guitool` when `diff.guitool` is
missing.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agodifftool: make --gui, --tool and --extcmd mutually exclusive
Denton Liu [Mon, 29 Apr 2019 06:21:17 +0000 (02:21 -0400)]
difftool: make --gui, --tool and --extcmd mutually exclusive

In git-difftool, these options specify which tool to ultimately run. As
a result, they are logically conflicting. Explicitly disallow these
options from being used together.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agomergetool: fallback to tool when guitool unavailable
Denton Liu [Mon, 29 Apr 2019 06:21:14 +0000 (02:21 -0400)]
mergetool: fallback to tool when guitool unavailable

In git-difftool, if the tool is called with --gui but `diff.guitool` is
not set, it falls back to `diff.tool`. Make git-mergetool also fallback
from `merge.guitool` to `merge.tool` if the former is undefined.

If git-difftool, when called with `--gui`, were to use
`get_configured_mergetool` in a future patch, it would also get the
fallback behavior in the following precedence:

1. diff.guitool
2. merge.guitool
3. diff.tool
4. merge.tool

The behavior for when difftool or mergetool are called without `--gui`
should be identical with or without this patch.

Note that the search loop could be written as

sections="merge"
keys="tool"
if diff_mode
then
sections="diff $sections"
fi
if gui_mode
then
keys="guitool $keys"
fi

merge_tool=$(
IFS=' '
for key in $keys
do
for section in $sections
do
selected=$(git config $section.$key)
if test -n "$selected"
then
echo "$selected"
return
fi
done
done)

which would make adding a mode in the future much easier. However,
adding a new mode will likely never happen as it is highly discouraged
so, as a result, it is written in its current form so that it is more
readable for future readers.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agomergetool--lib: create gui_mode function
Denton Liu [Mon, 29 Apr 2019 06:21:11 +0000 (02:21 -0400)]
mergetool--lib: create gui_mode function

Before, in `get_configured_merge_tool`, we would test the value of the
first argument directly, which corresponded to whether we were using
guitool. However, since `$GIT_MERGETOOL_GUI` is available as an
environment variable, create the `gui_mode` function which increases the
clarify of functions which use it.

While we're at it, add a space before `()` in function definitions to
fix the style.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agomergetool: use get_merge_tool function
Denton Liu [Mon, 29 Apr 2019 06:21:08 +0000 (02:21 -0400)]
mergetool: use get_merge_tool function

In git-mergetool, the logic for getting which merge tool to use is
duplicated in git-mergetool--lib, except for the fact that it needs to
know whether the tool was guessed or not.

Rewrite `get_merge_tool` to return whether or not the tool was guessed
through the return code and make git-mergetool call this function
instead of duplicating the logic. Note that 1 was chosen to be the
return code of when a tool is guessed because it seems like a slightly
more abnormal condition than getting a tool that's explicitly specified
but this is completely arbitrary.

Also, let `$GIT_MERGETOOL_GUI` be set to determine whether or not the
guitool will be selected.

This change is not completely backwards compatible as there may be
external users of git-mergetool--lib. However, only one user,
git-diffall[1], was found from searching GitHub and Google, and this
tool is superseded by `git difftool --dir-diff` anyway. It seems very
unlikely that there exists an external caller that would take into
account the return code of `get_merge_tool` as it would always return 0
before this change so this change probably does not affect any external
users.

[1]: https://github.com/thenigan/git-diffall

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agotrace2: add variable description to git.txt
Derrick Stolee [Fri, 10 May 2019 19:44:26 +0000 (12:44 -0700)]
trace2: add variable description to git.txt

Documentation/technical/api-trace2.txt contains the full details
of the trace2 API and the GIT_TR2* environment variables. However,
most environment variables are included in Documentation/git.txt,
including the GIT_TRACE* variables.

Add a brief description of the GIT_TR2* variables with links to
the full technical details. The biggest difference from the
original variables is that we can specify a Unix Domain Socket.
Mention this difference, but leave the details to the technical
documents.

Reported-by: Szeder Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agostatus: fix display of rebase -ir's `label` command
Johannes Schindelin [Fri, 10 May 2019 20:23:14 +0000 (13:23 -0700)]
status: fix display of rebase -ir's `label` command

The argument of a `label` command does *not* want to be turned into an
abbreviated SHA-1.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agotrace2: fix up a missing "leave" entry point
Ævar Arnfjörð Bjarmason [Fri, 10 May 2019 13:37:38 +0000 (15:37 +0200)]
trace2: fix up a missing "leave" entry point

Fix a trivial bug that's been here since the shared/do_write_index
tracing was added in 42fee7a388 ("trace2:data: add trace2
instrumentation to index read/write", 2019-02-22). We should have
enter/leave points, not two enter/enter points. This resulted in an
"enter" event without a corresponding "leave" event.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agocheck-non-portable-shell: support Perl versions older than 5.10
Eric Sunshine [Sat, 11 May 2019 00:18:53 +0000 (20:18 -0400)]
check-non-portable-shell: support Perl versions older than 5.10

For thoroughness when checking for one-shot environment variable
assignments at shell function call sites, check-non-portable-shell
stitches together incomplete lines (those ending with backslash). This
allows it to correctly flag such undesirable usage even when the
variable assignment and function call are split across lines, for
example:

    FOO=bar \
    func

where 'func' is a shell function.

The stitching is accomplished like this:

    while (<>) {
        chomp;
        # stitch together incomplete lines (those ending with "\")
        while (s/\\$//) {
            $_ .= readline;
            chomp;
        }
        # detect unportable/undesirable shell constructs
        ...
    }

Although this implementation is well supported in reasonably modern Perl
versions (5.10 and later), it fails with older versions (such as Perl
5.8 shipped with ancient Mac OS 10.5). In particular, in older Perl
versions, 'readline' is not connected to the file handle associated with
the "magic" while (<>) {...} construct, so 'readline' throws a
"readline() on unopened filehandle" error. Work around this problem by
dropping readline() and instead incorporating the stitching of
incomplete lines directly into the existing while (<>) {...} loop.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agomingw: enable DEP and ASLR
İsmail Dönmez [Wed, 8 May 2019 11:30:59 +0000 (04:30 -0700)]
mingw: enable DEP and ASLR

Enable DEP (Data Execution Prevention) and ASLR (Address Space Layout
Randomization) support. This applies to both 32bit and 64bit builds
and makes it substantially harder to exploit security holes in Git by
offering a much more unpredictable attack surface.

ASLR interferes with GDB's ability to set breakpoints. A similar issue
holds true when compiling with -O2 (in which case single-stepping is
messed up because GDB cannot map the code back to the original source
code properly). Therefore we simply enable ASLR only when an
optimization flag is present in the CFLAGS, using it as an indicator
that the developer does not want to debug in GDB anyway.

Signed-off-by: İsmail Dönmez <ismail@i10z.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agomingw: do not let ld strip relocations
İsmail Dönmez [Wed, 8 May 2019 11:30:58 +0000 (04:30 -0700)]
mingw: do not let ld strip relocations

This is the first step for enabling ASLR (Address Space Layout
Randomization) support. We want to enable ASLR for better protection
against exploiting security holes in Git: it makes it harder to attack
software by making code addresses unpredictable.

The problem fixed by this commit is that `ld.exe` seems to be stripping
relocations which in turn will break ASLR support. We just make sure
it's not stripping the main executable entry.

Signed-off-by: İsmail Dönmez <ismail@i10z.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agotrace2: fix up a missing "leave" entry point
Ævar Arnfjörð Bjarmason [Fri, 10 May 2019 13:37:38 +0000 (15:37 +0200)]
trace2: fix up a missing "leave" entry point

Fix a trivial bug that's been here since the shared/do_write_index
tracing was added in 42fee7a388 ("trace2:data: add trace2
instrumentation to index read/write", 2019-02-22). We should have
enter/leave points, not two enter/enter points. This resulted in an
"enter" event without a corresponding "leave" event.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agodifftool --no-index: error out on --dir-diff (and don't crash)
Johannes Schindelin [Wed, 8 May 2019 21:52:41 +0000 (14:52 -0700)]
difftool --no-index: error out on --dir-diff (and don't crash)

In `--no-index` mode, we now no longer require a worktree nor a
repository. But some code paths in `difftool` expect those to be
present.

The most notable such code path is the `--dir-diff` one: we use the
existing checkout machinery to copy the files, and that machinery looks
up replacement refs, looks at alternate ODBs, wants to use the worktree
path, etc.

Rather than running into segmentation faults, let's die with an
informative error message.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agotag: fix typo in nested tagging hint
Denton Liu [Wed, 8 May 2019 19:16:41 +0000 (15:16 -0400)]
tag: fix typo in nested tagging hint

In eea9c1e78f (tag: advise on nested tags, 2019-04-04), tag was taught
to hint at the user if a nested tag is made. However, this message had a
typo and it said "The object referred to by your new is...", which was
missing a "tag" after "new". Fix this message by adding the "tag".

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agodiff-highlight: use correct /dev/null for UNIX and Windows
Chris. Webster [Wed, 31 Oct 2018 14:58:00 +0000 (23:58 +0900)]
diff-highlight: use correct /dev/null for UNIX and Windows

Use File::Spec->devnull() for output redirection to avoid messages
when Windows version of Perl is first in path.  The message 'The
system cannot find the path specified.' is displayed each time git is
run to get colors.

Signed-off-by: Chris. Webster <chris@webstech.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agoThe eighth batch
Junio C Hamano [Wed, 8 May 2019 15:37:54 +0000 (00:37 +0900)]
The eighth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 years agoMerge branch 'vk/autoconf-gettext'
Junio C Hamano [Wed, 8 May 2019 15:37:29 +0000 (00:37 +0900)]
Merge branch 'vk/autoconf-gettext'

The autoconf generated configure script failed to use the right
gettext() implementations from -libintl by ignoring useless stub
implementations shipped in some C library, which has been
corrected.

* vk/autoconf-gettext:
  autoconf: #include <libintl.h> when checking for gettext()

2 years agoMerge branch 'cc/aix-has-fileno-as-a-macro'
Junio C Hamano [Wed, 8 May 2019 15:37:28 +0000 (00:37 +0900)]
Merge branch 'cc/aix-has-fileno-as-a-macro'

AIX shared the same build issues with other BSDs around fileno(fp),
which has been corrected.

* cc/aix-has-fileno-as-a-macro:
  Makefile: use fileno macro work around on AIX