Commit Graph

57382 Commits

Author SHA1 Message Date
Junio C Hamano
dac1d83c91 Merge branch 'ds/commit-graph-on-fetch'
Regression fix.

* ds/commit-graph-on-fetch:
  commit-graph: fix writing first commit-graph during fetch
  t5510-fetch.sh: demonstrate fetch.writeCommitGraph bug
2019-11-04 13:33:06 +09:00
Junio C Hamano
c32ca691c2 Merge branch 'jt/delay-fetch-if-missing'
Work-around a lazy fetch glitch.

* jt/delay-fetch-if-missing:
  fetch: delay fetch_if_missing=0 until after config
2019-11-04 13:33:05 +09:00
Junio C Hamano
ab6b50e4c8 Merge https://github.com/prati0100/git-gui
* https://github.com/prati0100/git-gui:
  git-gui: improve Japanese translation
  git-gui: add a readme
  git-gui: support for diff3 conflict style
  git-gui: use existing interface to query a path's attribute
  git-gui (Windows): use git-bash.exe if it is available
  treewide: correct several "up-to-date" to "up to date"
  Fix build with core.autocrlf=true
2019-11-04 13:29:38 +09:00
Junio C Hamano
93bf7423dd l10n-2.24.0-rnd2
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEET/4dIHc7EQTOoGRdx6TpG3VEeigFAl29gb0ACgkQx6TpG3VE
 eig4Yg//UAKKk0XFDrQVWr4FNa3dOwFRw48nDzEk3OOkTAqTW5j0TxkBY849jF2x
 JYTJqIFoHrDLxLTD/0Vga/GbCinKabxsobJJtbUq8ObNCw771GMjNN5ibYayGwYt
 xfYHxkvSbT7qa9W3skUxVmzn1gvPJXjOfkh9QgCixi1NuzGXmpfjuAxXaNE/b295
 gxa2ukXg5YJPneTmbcqdP5+0bP3+uFYdnWHMfk3UXxOQULC7fxbdZp3FB7fDXRTb
 +fMxFrzDVqM0tLRfeMCg26XeRFYuGi7CUDrvHXTxIoC7S+EkLe0LqeodtsMJ0Nx2
 YNiVdwe/F4UCfnkFeaXE+jdVvkoImjSulhcllps253/EZbwYR7jiYbnzHLwObszq
 +W7Mpws38xk5DLIK+97ARTUh0qn0ZpcpehIwGR2Omj+HB0VnAkULNTmkgbtqnxXV
 rJvlc/NyG3CBYwXxTG3rxSko9JzVBXhAXFcDJYoZeyHMRnhuf9VP+er/WMCnfppM
 0H7QDeRcipU1lusmwYSEQM9/EyjVsrwdgXiucna6BX9jm5pFGjPmo424A5XlFZ4k
 BJU94a5wLW7ppKumui9t7TjkrEkySb58pKYVMQ+JBVMWhc7xMvolDmmZibHMWegi
 VxGtPlvA5824rsSUmqBuFcG4fIEx1501PW/978DwN0ObCQ/nFsU=
 =EB7y
 -----END PGP SIGNATURE-----

Merge tag 'l10n-2.24.0-rnd2' of https://github.com/git-l10n/git-po

l10n-2.24.0-rnd2

* tag 'l10n-2.24.0-rnd2' of https://github.com/git-l10n/git-po:
  l10n: zh_CN: for git v2.24.0 l10n round 1~2
  l10n: de.po: Update German translation
  l10n: sv.po: Update Swedish translation (4695t0f0u)
  l10n: bg.po: Updated Bulgarian translation (4694)
  l10n: vi(4694t): Updated translation for v2.24.0
  l10n: es: 2.24.0 round 2
  l10n: it.po: update the Italian translation for Git 2.24.0 round #2
  l10n: fr v2.24.0 rnd2
  l10n: git.pot: v2.24.0 round 2 (1 new)
  l10n: it.po: update the Italian translation for Git 2.24.0
  l10n: fr 2.24.0 rnd 1
  l10n: git.pot: v2.24.0 round 1 (35 new, 16 removed)
  l10n: bg.po: Updated Bulgarian translation (4693)
  l10n: sv.po: Update Swedish translation (4674t0f0u)
  l10n: Update Catalan translation
2019-11-04 13:25:13 +09:00
Jiang Xin
a5cd71ca4a l10n: zh_CN: for git v2.24.0 l10n round 1~2
Translate 36 new messages (4694t0f0u) for git 2.24.0.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
2019-11-02 20:51:12 +08:00
Johannes Schindelin
4a58c3d7f7 stash: handle staged changes in skip-worktree files correctly
When calling `git stash` while changes were staged for files that are
marked with the `skip-worktree` bit (e.g. files that are excluded in a
sparse checkout), the files are recorded as _deleted_ instead.

The reason is that `git stash` tries to construct the tree reflecting
the worktree essentially by copying the index to a temporary one and
then updating the files from the worktree. Crucially, it calls `git
diff-index` to update also those files that are in the HEAD but have
been unstaged in the index.

However, when the temporary index is updated via `git update-index --add
--remove`, skip-worktree entries mark the files as deleted by mistake.

Let's use the newly-introduced `--ignore-skip-worktree-entries` option
of `git update-index` to prevent exactly this from happening.

Note that the regression test case deliberately avoids replicating the
scenario described above and instead tries to recreate just the symptom.

Reported by Dan Thompson.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-02 15:22:45 +09:00
Johannes Schindelin
8dfb04ae96 update-index: optionally leave skip-worktree entries alone
While `git update-index` mostly ignores paths referring to index entries
whose skip-worktree bit is set, in b4d1690df1 (Teach Git to respect
skip-worktree bit (reading part), 2009-08-20), for reasons that are not
entirely obvious, the `--remove` option was made special: it _does_
remove index entries even if their skip-worktree bit is set.

Seeing as this behavior has been in place for a decade now, it does not
make sense to change it.

However, in preparation for fixing a bug in `git stash` where it
pretends that skip-worktree entries have actually been removed, we need
a mode where `git update-index` leaves all skip-worktree entries alone,
even if the `--remove` option was passed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-02 15:22:00 +09:00
Elijah Newren
efd5444238 RelNotes/2.24.0: fix self-contradictory note
As per Wikipedia, "In current technical usage, for one to state that a
feature is deprecated is merely a recommendation against using it."  It
is thus contradictory to claim that something is not "officially
deprecated" and then to immediately state that we are both discouraging
its use and pointing people elsewhere.

Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-02 15:03:01 +09:00
Martin Ågren
55aca515eb manpage-bold-literal.xsl: match for namespaced "d:literal" in template
We recently regressed our rendering with Asciidoctor of "literal"
elements in our manpages, i.e, stuff we have placed within `backticks`
in order to render as monospace. In particular, we lost the bold
rendering of such literal text.

The culprit is f6461b82b9 ("Documentation: fix build with Asciidoctor 2",
2019-09-15), where we switched from DocBook 4.5 to DocBook 5 with
Asciidoctor. As part of the switch, we started using the namespaced
DocBook XSLT stylesheets rather than the non-namespaced ones. (See
f6461b82b9 for more details on why we changed to the namespaced ones.)

The bold literals are implemented as an XSLT snippet <xsl:template
match="literal">...</xsl:template>. Now that we use namespaces, this
doesn't pick up our literals like it used to.

Match for "d:literal" in addition to just "literal", after defining the
d namespace. ("d" is what
http://docbook.sourceforge.net/release/xsl-ns/current/manpages/docbook.xsl
uses.) Note that we need to keep matching without the namespace for
AsciiDoc.

This boldness was introduced by 5121a6d993 ("Documentation: option to
render literal text as bold for manpages", 2009-03-27) and made the
default in 5945717009 ("Documentation: bold literals in man",
2016-05-31).

One reason this was not caught in review is that our doc-diff tool diffs
without any boldness, i.e., it "only" compares text. As pointed out by
Peff in review of this patch, one can use `MAN_KEEP_FORMATTING=1
./doc-diff <...>`

This has been optically tested with AsciiDoc 8.6.10, Asciidoctor 1.5.5
and Asciidoctor 2.0.10. I've also verified that doc-diff produces the
empty output for all three programs, as expected, and that with the
MAN_KEEP_FORMATTING trick, AsciiDoc yields no diff, whereas with
Asciidoctor, we get bold literals, just like we want.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Acked-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-02 14:46:42 +09:00
Elijah Newren
849e43680d RelNotes/2.24.0: typofix
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-02 14:43:51 +09:00
Matthias Rüster
798d66e35d l10n: de.po: Update German translation
Signed-off-by: Matthias Rüster <matthias.ruester@gmail.com>
Reviewed-by: Ralf Thielow <ralf.thielow@gmail.com>
Reviewed-by: Phillip Szelat <phillip.szelat@gmail.com>
2019-10-31 09:35:59 +01:00
Peter Krefting
c1d0038746 l10n: sv.po: Update Swedish translation (4695t0f0u)
Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
2019-10-30 23:22:13 +01:00
Junio C Hamano
f21f8f5d35 Git 2.24-rc2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-30 15:13:14 +09:00
Junio C Hamano
8dc28ee438 Merge branch 'wb/fsmonitor-bitmap-fix'
Comment update.

* wb/fsmonitor-bitmap-fix:
  t7519-status-fsmonitor: improve comments
2019-10-30 15:13:14 +09:00
Junio C Hamano
0d6799e563 Merge branch 'rl/gitweb-blame-prev-fix'
Fix a rather old bug in gitweb---incremental blame output in
javascript actions mode never worked.

* rl/gitweb-blame-prev-fix:
  gitweb: correctly store previous rev in javascript-actions mode
2019-10-30 15:13:13 +09:00
Junio C Hamano
f2db52c46b Merge branch 'js/mingw-needs-hiding-fix'
Fix for a (rather old) buffer-overrun bug.

* js/mingw-needs-hiding-fix:
  mingw: avoid a buffer overrun in `needs_hiding()`
2019-10-30 15:13:13 +09:00
Jiang Xin
5b7594abdc Merge branch 'master' of github.com:vnwildman/git
* 'master' of github.com:vnwildman/git:
  l10n: vi(4694t): Updated translation for v2.24.0
2019-10-30 14:07:58 +08:00
Jiang Xin
034d33653a Merge branch 'next' of github.com:ChrisADR/git-po
* 'next' of github.com:ChrisADR/git-po:
  l10n: es: 2.24.0 round 2
2019-10-30 14:02:22 +08:00
William Baker
460782b7be t7519-status-fsmonitor: improve comments
The comments for the staging/unstaging test did not accurately
describe the scenario being tested.  It is not essential that
the test files being staged/unstaged appear at the end of the
index.  All that is required is that the test files are not
flagged with CE_FSMONITOR_VALID and have a position in the
index greater than the number of entries in the index after
unstaging.

The comment for this test has been updated to be more
accurate with respect to the scenario that's being tested.

Signed-off-by: William Baker <William.Baker@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-30 11:52:18 +09:00
Prarit Bhargava
d8b8217c8a pretty: add "%aL" etc. to show local-part of email addresses
In many projects the number of contributors is low enough that users know
each other and the full email address doesn't need to be displayed.
Displaying only the author's username saves a lot of columns on the screen.

Existing 'e/E' (as in "%ae" and "%aE") placeholders would show the
author's address as "prarit@redhat.com", which would waste columns to show
the same domain-part for all contributors when used in a project internal
to redhat.  Introduce 'l/L' placeholders that strip '@' and domain part from
the e-mail address.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-30 11:49:41 +09:00
Alexander Shopov
1294a85b7c l10n: bg.po: Updated Bulgarian translation (4694)
Signed-off-by: Alexander Shopov <ash@kambanaria.org>
2019-10-29 11:37:45 +01:00
Tran Ngoc Quan
f126a1fb0f l10n: vi(4694t): Updated translation for v2.24.0
Signed-off-by: Tran Ngoc Quan <vnwildman@gmail.com>
2019-10-29 14:38:42 +07:00
Christopher Diaz Riveros
77200e9332 l10n: es: 2.24.0 round 2
Signed-off-by: Christopher Diaz Riveros <christopher.diaz.riv@gmail.com>
2019-10-28 19:21:27 -05:00
Jiang Xin
e42df36b42 Merge branch 'l10n/it/update-italian-translation'
* 'update-italian-translation' of github.com:AlessandroMenti/git-po:
  l10n: it.po: update the Italian translation for Git 2.24.0 round #2
2019-10-29 07:27:51 +08:00
Alessandro Menti
5e196e8ae0
l10n: it.po: update the Italian translation for Git 2.24.0 round #2
Signed-off-by: Alessandro Menti <alessandro.menti@alessandromenti.it>
2019-10-28 20:44:05 +01:00
Jean-Noël Avila
51728480fe l10n: fr v2.24.0 rnd2
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
2019-10-28 20:36:01 +01:00
Jiang Xin
045a548698 l10n: git.pot: v2.24.0 round 2 (1 new)
Generate po/git.pot from v2.24.0-rc1 for git v2.24.0 l10n round 2.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
2019-10-28 13:20:37 +08:00
Jiang Xin
468d356a81 Git 2.24-rc1
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE4fA2sf7nIh/HeOzvsLXohpav5ssFAl2xOfYACgkQsLXohpav
 5ss0lg//bIacUJToa4dfT7FHw/uG4x0hlwOEJ8Iul9TifIPCQsRM2lOQkCgde+Dd
 6nXu4HLIjCBpFcUmrfEPErOp8eqEshY4DJ6n7UadAxm+uUB7PWI4r7v24JJtFtyM
 VrrqlkhgiMo72h+KxTKNZeiY+s/aD7yGwU//2cGckTgr0H0qxt2+NrOeH3jYMQ1p
 NiSZK3xDKUUxIf3XmKn6GjAS5fXnBsfY2gIj7xg4mhyQDc3Ui+vHN6cr5qESYqa+
 O1CmZEzBxksxN0kDgF53bqry9zmRr1Z8Hfocqc9xVu43tObohS/PZ8T9bnTH97UJ
 tDBfRankgXbjoLyUmct+eYlm/23m8h0fKPxNT1XXoLsRxiouJgIg+iIj86QbsAm6
 rF1XYubiTUtKiMcmYMHK1vlXRPTUvkuJp/JhQyui5vdSE/Q7+uSp/4fLpdvgpE1H
 3NqFtYA+rkxR/cT8+ldL8iDw5Y5J4O6egwfzEB8ZYAsMLwFc7s/aM312srSt9EN+
 9j80WeUju3nuAQlhqhYMVERHm84WewcPD8AaBepFNfhJLmtVVCOovQEsc62gRnwW
 B27EXjKr+ASrMa7rg73RWiqC13gAh4c9kS8FUVZVHstRnGlO5dmiHTU6td+Id10r
 IV4i7pyFQA0/1IXd8O0J6F9iUvPTIOSqzVhywZIkDkRcXNQqOdg=
 =zfW8
 -----END PGP SIGNATURE-----

Merge tag 'v2.24.0-rc1' of github.com:git/git into master

Git 2.24-rc1

* tag 'v2.24.0-rc1' of github.com:git/git:
  Git 2.24-rc1
  repo-settings: read an int for index.version
  ci: fix GCC install in the Travis CI GCC OSX job
  Eleventh batch
  ci(osx): use new location of the `perforce` cask
  t7419: change test_must_fail to ! for grep
  t4014: make output-directory tests self-contained
  ci(visual-studio): actually run the tests in parallel
  ci(visual-studio): use strict compile flags, and optimization
  userdiff: fix some corner cases in dts regex
  test-progress: fix test failures on big-endian systems
  completion: clarify installation instruction for zsh
  grep: avoid leak of chartables in PCRE2
  grep: make PCRE2 aware of custom allocator
  grep: make PCRE1 aware of custom allocator
  remote-curl: pass on atomic capability to remote side
  diff-highlight: fix a whitespace nit
  fsmonitor: don't fill bitmap with entries to be removed
2019-10-28 13:18:55 +08:00
Johannes Schindelin
60e6569a12 mingw: avoid a buffer overrun in needs_hiding()
When this function is passed a path with a trailing slash, it runs right
over the end of that path.

Let's fix this.

Co-authored-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 12:38:51 +09:00
SZEDER Gábor
8b656572ca builtin/commit-graph.c: remove subcommand-less usage string
The first line in 'git commit-graph's usage string indicates that this
command can be invoked without specifying a subcommand.  However, this
is not the case:

  $ git commit-graph
  usage: git commit-graph [--object-dir <objdir>]
     or: git commit-graph read [--object-dir <objdir>]
  [...]
  $ echo $?
  129

Remove this line from the usage string.

The synopsis in the manpage doesn't contain this line.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 12:24:17 +09:00
brian m. carlson
fa26d5ede6 t4048: abstract away SHA-1-specific constants
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
cf02be8486 t4045: make hash-size independent
Replace a hard-coded all-zeros object ID with a use of $ZERO_OID.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
38ee26b2a3 t4044: update test to work with SHA-256
This test produces pseudo-collisions and tests git diff's behavior with
them, and is therefore sensitive to the hash in use. Update the test to
compute the collisions for both SHA-1 and SHA-256 using appropriate
constants. Move the heredocs inside the setup block so that all of the
setup code can be tested for failure.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
37ab8ebef1 t4039: abstract away SHA-1-specific constants
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
0370b35414 t4038: abstract away SHA-1 specific constants
Compute several object IDs that exist in expected output, since we don't
care about the specific object IDs, only that the format of the output
is syntactically correct.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
0253e126a2 t4034: abstract away SHA-1-specific constants
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.  Move some expected result heredocs around so
that they can use computed variables.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
45e2ef2b1d t4027: make hash-size independent
Instead of hard-coding the length of an object ID, look this value up
using the translation tables.  Similarly, compute input data for invalid
submodule entries using the tables as well.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
79b0edc1a0 t4015: abstract away SHA-1-specific constants
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
840624ff55 t4011: abstract away SHA-1-specific constants
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
32a6707267 t4010: abstract away SHA-1-specific constants
Adjust the test so that it computes variables for object IDs instead of
using hard-coded hashes.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
440bf91dfa t3429: remove SHA1 annotation
This test passes successfully with SHA-256, so remove the annotation
which limits it to SHA-1.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
0b408ca2bd t1305: avoid comparing extensions
A repository using a hash other than SHA-1 will need to have an
extension in the config file.  Ignore any extensions when comparing
config files, since they don't usefully contribute to the goal of the
test.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:58 +09:00
brian m. carlson
2eabd38313 rev-parse: add a --show-object-format option
Add an option to print the object format used for input, output, or
storage. This allows shell scripts to discover the hash algorithm in
use.

Since the transition plan allows for multiple input algorithms, document
that we may provide multiple results for input, and the format that the
results may take. While we don't support this now, documenting it early
means that script authors can future-proof their scripts for when we do.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:34:57 +09:00
Robert Luberda
52bd3e4657 gitweb: correctly store previous rev in javascript-actions mode
Without this change, the setting

 $feature{'javascript-actions'}{'default'} = [1];

in gitweb.conf breaks gitweb's blame page: clicking on line numbers
displayed in the second column on the page has no effect.

For comparison, with javascript-actions disabled, clicking on line
numbers loads the previous version of the line.

Addresses https://bugs.debian.org/741883.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Robert Luberda <robert@debian.org>
Acked-by: Jakub Narębski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-28 11:06:57 +09:00
Prarit Bhargava
45e206f0d8 t4203: use test-lib.sh definitions
Use name and email definitions from test-lib.sh.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-25 14:12:58 +09:00
Prarit Bhargava
2ae4944aac t6006: use test-lib.sh definitions
Use name and email definitions from test-lib.sh.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-25 14:09:53 +09:00
Derrick Stolee
cb99a34e23 commit-graph: fix writing first commit-graph during fetch
The previous commit includes a failing test for an issue around
fetch.writeCommitGraph and fetching in a repo with a submodule. Here, we
fix that bug and set the test to "test_expect_success".

The problem arises with this set of commands when the remote repo at
<url> has a submodule. Note that --recurse-submodules is not needed to
demonstrate the bug.

	$ git clone <url> test
	$ cd test
	$ git -c fetch.writeCommitGraph=true fetch origin
	Computing commit graph generation numbers: 100% (12/12), done.
	BUG: commit-graph.c:886: missing parent <hash1> for commit <hash2>
	Aborted (core dumped)

As an initial fix, I converted the code in builtin/fetch.c that calls
write_commit_graph_reachable() to instead launch a "git commit-graph
write --reachable --split" process. That code worked, but is not how we
want the feature to work long-term.

That test did demonstrate that the issue must be something to do with
internal state of the 'git fetch' process.

The write_commit_graph() method in commit-graph.c ensures the commits we
plan to write are "closed under reachability" using close_reachable().
This method walks from the input commits, and uses the UNINTERESTING
flag to mark which commits have already been visited. This allows the
walk to take O(N) time, where N is the number of commits, instead of
O(P) time, where P is the number of paths. (The number of paths can be
exponential in the number of commits.)

However, the UNINTERESTING flag is used in lots of places in the
codebase. This flag usually means some barrier to stop a commit walk,
such as in revision-walking to compare histories. It is not often
cleared after the walk completes because the starting points of those
walks do not have the UNINTERESTING flag, and clear_commit_marks() would
stop immediately.

This is happening during a 'git fetch' call with a remote. The fetch
negotiation is comparing the remote refs with the local refs and marking
some commits as UNINTERESTING.

I tested running clear_commit_marks_many() to clear the UNINTERESTING
flag inside close_reachable(), but the tips did not have the flag, so
that did nothing.

It turns out that the calculate_changed_submodule_paths() method is at
fault. Thanks, Peff, for pointing out this detail! More specifically,
for each submodule, the collect_changed_submodules() runs a revision
walk to essentially do file-history on the list of submodules. That
revision walk marks commits UNININTERESTING if they are simplified away
by not changing the submodule.

Instead, I finally arrived on the conclusion that I should use a flag
that is not used in any other part of the code. In commit-reach.c, a
number of flags were defined for commit walk algorithms. The REACHABLE
flag seemed like it made the most sense, and it seems it was not
actually used in the file. The REACHABLE flag was used in early versions
of commit-reach.c, but was removed by 4fbcca4 (commit-reach: make
can_all_from_reach... linear, 2018-07-20).

Add the REACHABLE flag to commit-graph.c and use it instead of
UNINTERESTING in close_reachable(). This fixes the bug in manual
testing.

Reported-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Jeff King <peff@peff.net>
Helped-by: Szeder Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-25 11:19:16 +09:00
Derrick Stolee
e88aab917e t5510-fetch.sh: demonstrate fetch.writeCommitGraph bug
While dogfooding, Johannes found a bug in the fetch.writeCommitGraph
config behavior. His example initially happened during a clone with
--recurse-submodules, we found that this happens with the first fetch
after cloning a repository that contains a submodule:

	$ git clone <url> test
	$ cd test
	$ git -c fetch.writeCommitGraph=true fetch origin
	Computing commit graph generation numbers: 100% (12/12), done.
	BUG: commit-graph.c:886: missing parent <hash1> for commit <hash2>
	Aborted (core dumped)

In the repo I had cloned, there were really 60 commits to scan, but
only 12 were in the list to write when calling
compute_generation_numbers(). A commit in the list expects to see a
parent, but that parent is not in the list.

A follow-up will fix the bug, but first we create a test that
demonstrates the problem. This test must be careful about an existing
commit-graph file, since GIT_TEST_COMMIT_GRAPH=1 will cause the repo we
are cloning to already have one. This then prevents the incremtnal
commit-graph write during the first 'git fetch'.

Helped-by: Jeff King <peff@peff.net>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Szeder Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-25 11:19:14 +09:00
Heba Waly
7b4fb434b4 documentation: remove empty doc files
Remove empty and redundant documentation files from the
Documentation/technical/ directory.

The empty doc files included only TODO messages with no documentation for
years. Instead an approach is being taken to keep all doc beside the code
in the relevant header files.
Having empty doc files is confusing and disappointing to anybody looking
for information, besides having the documentation in header files makes it
easier for developers to find the information they are looking for.

Some of the content which could have gone here already exists elsewhere:
- api-object-access.txt -> sha1-file.c and object.h have some details.
- api-quote.txt -> quote.h has some details.
- api-xdiff-interface.txt -> xdiff-interface.h has some details.
- api-grep.txt -> grep.h does not have enough documentation at the moment.

Signed-off-by: Heba Waly <heba.waly@gmail.com>
Reviewed-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-25 11:18:14 +09:00
Junio C Hamano
566a1439f6 Git 2.24-rc1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-24 13:34:03 +09:00