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2015-11-05Merge branch 'rs/wt-status-detached-branch-fix' into maintLibravatar Junio C Hamano1-0/+14
"git status --branch --short" accessed beyond the constant string "HEAD", which has been corrected. * rs/wt-status-detached-branch-fix: wt-status: use skip_prefix() to get rid of magic string length constants wt-status: don't skip a magical number of characters blindly wt-status: avoid building bogus branch name with detached HEAD wt-status: exit early using goto in wt_shortstatus_print_tracking() t7060: add test for status --branch on a detached HEAD
2015-11-05Merge branch 'jc/add-u-A-default-to-top' into maintLibravatar Junio C Hamano2-0/+3
"git --literal-pathspecs add -u/-A" without any command line argument misbehaved ever since Git 2.0. * jc/add-u-A-default-to-top: add: simplify -u/-A without pathspec
2015-11-05Merge branch 'jk/delete-modechange-conflict' into maintLibravatar Junio C Hamano3-87/+130
Merging a branch that removes a path and another that changes the mode bits on the same path should have conflicted at the path, but it didn't and silently favoured the removal. * jk/delete-modechange-conflict: merge: detect delete/modechange conflict t6031: generalize for recursive and resolve strategies t6031: move triple-rename test to t3030
2015-11-05Merge branch 'nd/clone-linked-checkout' into maintLibravatar Junio C Hamano2-0/+47
It was not possible to use a repository-lookalike created by "git worktree add" as a local source of "git clone". * nd/clone-linked-checkout: clone: better error when --reference is a linked checkout clone: allow --local from a linked checkout enter_repo: allow .git files in strict mode enter_repo: avoid duplicating logic, use is_git_directory() instead t0002: add test for enter_repo(), non-strict mode path.c: delete an extra space
2015-11-03Merge branch 'jk/merge-file-exit-code' into maintLibravatar Junio C Hamano1-0/+33
"git merge-file" tried to signal how many conflicts it found, which obviously would not work well when there are too many of them. * jk/merge-file-exit-code: merge-file: clamp exit code to maximum 127
2015-11-03Merge branch 'dt/t7063-fix-flaky-test' into maintLibravatar Junio C Hamano1-1/+3
* dt/t7063-fix-flaky-test: t7063: fix flaky untracked-cache test
2015-11-03Merge branch 'mk/submodule-gitdir-path' into maintLibravatar Junio C Hamano1-0/+10
The submodule code has been taught to work better with separate work trees created via "git worktree add". * mk/submodule-gitdir-path: path: implement common_dir handling in git_pathdup_submodule() submodule refactor: use strbuf_git_path_submodule() in add_submodule_odb()
2015-11-03Merge branch 'ls/p4-translation-failure' into maintLibravatar Junio C Hamano1-0/+50
Work around "git p4" failing when the P4 depot records the contents in UTF-16 without UTF-16 BOM. * ls/p4-translation-failure: git-p4: handle "Translation of file content failed" git-p4: add test case for "Translation of file content failed" error
2015-11-03Merge branch 'gr/rebase-i-drop-warn' into maintLibravatar Junio C Hamano1-0/+12
Recent update to "rebase -i" that tries to sanity check the edited insn sheet before it uses it has become too picky on Windows where CRLF left by the editor is turned into a trailing CR on the line read via the "read" built-in command. * gr/rebase-i-drop-warn: rebase-i: work around Windows CRLF line endings t3404: "rebase -i" gets broken when insn sheet uses CR/LF line endings
2015-11-03Merge branch 'js/clone-dissociate' into maintLibravatar Junio C Hamano1-0/+21
"git clone --dissociate" runs a big "git repack" process at the end, and it helps to close file descriptors that are open on the packs and their idx files before doing so on filesystems that cannot remove a file that is still open. * js/clone-dissociate: clone --dissociate: avoid locking pack files sha1_file.c: add a function to release all packs sha1_file: consolidate code to close a pack's file descriptor t5700: demonstrate a Windows file locking issue with `git clone --dissociate`
2015-11-03Merge branch 'ld/p4-import-labels' into maintLibravatar Junio C Hamano1-0/+45
Correct "git p4 --detect-labels" so that it does not fail to create a tag that points at a commit that is also being imported. * ld/p4-import-labels: git-p4: fix P4 label import for unprocessed commits git-p4: do not terminate creating tag for unknown commit git-p4: failing test for ignoring invalid p4 labels
2015-11-03Merge branch 'jk/repository-extension' into maintLibravatar Junio C Hamano1-0/+60
Prepare for Git on-disk repository representation to undergo backward incompatible changes by introducing a new repository format version "1", with an extension mechanism. * jk/repository-extension: introduce "preciousObjects" repository extension introduce "extensions" form of core.repositoryformatversion
2015-11-01wt-status: avoid building bogus branch name with detached HEADLibravatar René Scharfe1-1/+1
If we're on a detached HEAD then wt_shortstatus_print_tracking() takes the string "HEAD (no branch)", translates it, skips the first eleven characters and passes the result to branch_get(), which returns a bogus result and accesses memory out of bounds in order to produce it. Somehow stat_tracking_info(), which is passed that result, does the right thing anyway, i.e. it finds that there is no base. Avoid the bogus results and memory accesses by checking for HEAD first and exiting early in that case. This fixes t7060 with --valgrind. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-01t7060: add test for status --branch on a detached HEADLibravatar René Scharfe1-0/+14
This test fails when run under Valgrind because branch_get() gets passed a bogus branch name pointer: ==62831== Invalid read of size 1 ==62831== at 0x4F76AE: branch_get (remote.c:1650) ==62831== by 0x53499E: wt_shortstatus_print_tracking (wt-status.c:1654) ==62831== by 0x53499E: wt_shortstatus_print (wt-status.c:1706) ==62831== by 0x428D29: cmd_status (commit.c:1384) ==62831== by 0x405D6D: run_builtin (git.c:350) ==62831== by 0x405D6D: handle_builtin (git.c:536) ==62831== by 0x404F10: run_argv (git.c:582) ==62831== by 0x404F10: main (git.c:690) ==62831== Address 0x5e89b0b is 6 bytes after a block of size 5 alloc'd ==62831== at 0x4C28C4F: malloc (vg_replace_malloc.c:299) ==62831== by 0x59579E9: strdup (strdup.c:42) ==62831== by 0x52E108: xstrdup (wrapper.c:43) ==62831== by 0x5322A6: wt_status_prepare (wt-status.c:130) ==62831== by 0x4276E0: status_init_config (commit.c:184) ==62831== by 0x428BB8: cmd_status (commit.c:1350) ==62831== by 0x405D6D: run_builtin (git.c:350) ==62831== by 0x405D6D: handle_builtin (git.c:536) ==62831== by 0x404F10: run_argv (git.c:582) ==62831== by 0x404F10: main (git.c:690) Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-29merge-file: clamp exit code to maximum 127Libravatar Jeff King1-0/+33
Git-merge-file is documented to return one of three exit codes: - zero means the merge was successful - a negative number means an error occurred - a positive number indicates the number of conflicts Unfortunately, this all gets stuffed into an 8-bit return code. Which means that if you have 256 conflicts, this wraps to zero, and the merge appears to succeed (and commits a blob full of conflict-marker cruft!). This patch clamps the return value to a maximum of 127, which we should be able to safely represent everywhere. This also leaves 128-255 for other values. Shells (and some parts of git) will typically represent signal death as 128 plus the signal number. And negative values are typically coerced to an 8-bit unsigned value (so "return -1" ends up as 255). Technically negative returns have the same problem (e.g., "-256" wraps back to 0), but this is not a problem in practice, as the only negative value we use is "-1". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-28rebase-i: work around Windows CRLF line endingsLibravatar Junio C Hamano1-1/+1
Editors on Windows can and do save text files with CRLF line endings, which is the convention on the platform. We are seeing reports that the "read" command in a port of bash to the environment however does not strip the CRLF at the end, not adjusting for the same convention on the platform. This breaks the recently added sanity checks for the insn sheet fed to "rebase -i"; instead of an empty line (hence nothing in $command), the script was getting a lone CR in there. Special case a lone CR and treat it the same way as an empty line to work this around. This patch (also) passes the test with Git for Windows, where the issue was seen first. Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-28t3404: "rebase -i" gets broken when insn sheet uses CR/LF line endingsLibravatar Johannes Schindelin1-0/+12
Based on a bug report by Chad Boles. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-26merge: detect delete/modechange conflictLibravatar Jeff King1-0/+23
If one side deletes a file and the other changes its content, we notice and report a conflict. However, if instead of changing the content, we change only the mode, the merge does not notice (and the mode change is silently dropped). The trivial index merge notices the problem and correctly leaves the conflict in the index, but both merge-recursive and merge-one-file will silently resolve this in favor of the deletion. In many cases that is a sane resolution, but we should be punting to the user whenever there is any question. So let's detect and treat this as a conflict (in both strategies). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-26t6031: generalize for recursive and resolve strategiesLibravatar Jeff King2-56/+77
This script tests the filemode handling of merge-recursive, but we do not test the same thing for merge-resolve. Let's generalize the script a little: 1. Break out the setup steps for each test into a separate snippet. 2. For each test, run it twice; once with "-s recursive" and once with "-s resolve". We can avoid repeating ourselves by adding a function. 3. Since we have a nice abstracted function, we can make our tests more thorough by testing both directions (change on "ours" versus "theirs"). This improves our test coverage, and will make this the place to add more tests related to merging mode changes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-26t6031: move triple-rename test to t3030Libravatar Jeff King2-31/+30
The t6031 test was introduced to check filemode handling of merge-recursive. Much later, an unrelated test was tacked on to look at renames and d/f conflicts. This test does not depend on anything that happened before (it actually blows away any existing content in the test repo). Let's move it to t3030, where there are more related tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-24add: simplify -u/-A without pathspecLibravatar Junio C Hamano2-0/+3
Since Git 2.0, "add -u" and "add -A" run from a subdirectory without any pathspec mean "everything in the working tree" (before 2.0, they were limited to the current directory). The limiting to the current directory was implemented by inserting "." to the command line when the end user did not give us any pathspec. At 2.0, we updated the code to insert ":/" (instead of '.') to consider everything from the top-level, by using a pathspec magic "top". The call to parse_pathspec() using the command line arguments is, however, made with PATHSPEC_PREFER_FULL option since 5a76aff1 (add: convert to use parse_pathspec, 2013-07-14), which predates Git 2.0. In retrospect, there was no need to turn "adding . to limit to the directory" into "adding :/ to unlimit to everywhere" in Git 2.0; instead we could just have done "if there is no pathspec on the command line, just let it be". The parse_pathspec() then would give us a pathspec that matches everything and all is well. Incidentally such a simplification also fixes a corner case bug that stems from the fact that ":/" does not necessarily mean any magic. A user would say "git --literal-pathspecs add -u :/" from the command line when she has a directory ':' and wants to add everything in it (and she knows that her :/ will be taken as 'everything under the sun' magic pathspec unless she disables the magic with --literal-pathspecs). The internal use of ':/' would behave the same way as such an explicitly given ":/" when run with "--literal-pathspecs", and will not add everything under the sun as the code originally intended. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-20Merge branch 'js/gc-with-stale-symref' into maintLibravatar Junio C Hamano1-0/+13
"git gc" used to barf when a symbolic ref has gone dangling (e.g. the branch that used to be your upstream's default when you cloned from it is now gone, and you did "fetch --prune"). * js/gc-with-stale-symref: pack-objects: do not get distracted by broken symrefs gc: demonstrate failure with stale remote HEAD
2015-10-20Merge branch 'jk/filter-branch-use-of-sed-on-incomplete-line' into maintLibravatar Junio C Hamano1-0/+14
A recent "filter-branch --msg-filter" broke skipping of the commit object header, which is fixed. * jk/filter-branch-use-of-sed-on-incomplete-line: filter-branch: remove multi-line headers in msg filter
2015-10-19t7063: fix flaky untracked-cache testLibravatar David Turner1-1/+3
Dirty the test worktree's root directory, as the test expects. When testing the untracked-cache, we previously assumed that checking out master would be sufficient to mark the mtime of the worktree's root directory as racily-dirty. But sometimes, the checkout would happen at 12345.999 seconds and the status at 12346.001 seconds, meaning that the worktree's root directory would not be racily-dirty. And since it was not truly dirty, occasionally the test would fail. By making the root truly dirty, the test will always succeed. Tested by running a few hundred times. Signed-off-by: David Turner <dturner@twopensource.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-16Merge branch 'es/worktree-add-cleanup' into maintLibravatar Junio C Hamano1-0/+0
A no-op code-health maintenance. * es/worktree-add-cleanup: t2026: rename worktree prune test
2015-10-16Merge branch 'jc/fsck-dropped-errors' into maintLibravatar Junio C Hamano1-1/+21
There were some classes of errors that "git fsck" diagnosed to its standard error that did not cause it to exit with non-zero status. * jc/fsck-dropped-errors: fsck: exit with non-zero when problems are found
2015-10-16Merge branch 'sb/http-flaky-test-fix' into maintLibravatar Junio C Hamano3-23/+1
A test script for the HTTP service had a timing dependent bug, which was fixed. * sb/http-flaky-test-fix: t5561: get rid of racy appending to logfile
2015-10-16Merge branch 'sb/perf-without-installed-git' into maintLibravatar Junio C Hamano1-0/+1
Performance-measurement tests did not work without an installed Git. * sb/perf-without-installed-git: t/perf: make runner work even if Git is not installed
2015-10-16Merge branch 'mm/detach-at-HEAD-reflog' into maintLibravatar Junio C Hamano1-0/+13
After "git checkout --detach", "git status" reported a fairly useless "HEAD detached at HEAD", instead of saying at which exact commit. * mm/detach-at-HEAD-reflog: status: don't say 'HEAD detached at HEAD' t3203: test 'detached at' after checkout --detach
2015-10-16Merge branch 'gr/rebase-i-drop-warn' into maintLibravatar Junio C Hamano1-0/+15
"git rebase -i" had a minor regression recently, which stopped considering a line that begins with an indented '#' in its insn sheet not a comment, which is now fixed. * gr/rebase-i-drop-warn: rebase-i: loosen over-eager check_bad_cmd check rebase-i: explicitly accept tab as separator in commands
2015-10-16Merge branch 'jk/notes-dwim-doc' into maintLibravatar Junio C Hamano1-0/+6
The way how --ref/--notes to specify the notes tree reference are DWIMmed was not clearly documented. * jk/notes-dwim-doc: notes: correct documentation of DWIMery for notes references
2015-10-16Merge branch 'jk/connect-clear-env' into maintLibravatar Junio C Hamano1-0/+34
The ssh transport, just like any other transport over the network, did not clear GIT_* environment variables, but it is possible to use SendEnv and AcceptEnv to leak them to the remote invocation of Git, which is not a good idea at all. Explicitly clear them just like we do for the local transport. * jk/connect-clear-env: git_connect: clarify conn->use_shell flag git_connect: clear GIT_* environment for ssh
2015-10-16Merge branch 'jk/blame-first-parent' into maintLibravatar Junio C Hamano1-0/+4
"git blame --first-parent v1.0..v2.0" was not rejected but did not limit the blame to commits on the first parent chain. * jk/blame-first-parent: blame: handle --first-parent
2015-10-12filter-branch: remove multi-line headers in msg filterLibravatar James McCoy1-0/+14
df062010 (filter-branch: avoid passing commit message through sed) introduced a regression when filtering commits with multi-line headers, if the header contains a blank line. An example of this is a gpg-signed commit: $ git cat-file commit signed-commit tree 3d4038e029712da9fc59a72afbfcc90418451630 parent 110eac945dc1713b27bdf49e74e5805db66971f0 author A U Thor <author@example.com> 1112912413 -0700 committer C O Mitter <committer@example.com> 1112912413 -0700 gpgsig -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEABECAAYFAlYXADwACgkQE7b1Hs3eQw23CACgldB/InRyDgQwyiFyMMm3zFpj pUsAnA+f3aMUsd9mNroloSmlOgL6jIMO =0Hgm -----END PGP SIGNATURE----- Adding gpg As a consequence, "filter-branch --msg-filter cat" (which should leave the commit message unchanged) spills the signature (after the internal blank line) into the original commit message. The reason is that although the signature is indented, making the line a whitespace only line, the "read" call is splitting the line based on the shell's IFS, which defaults to <space><tab><newline>. The leading space is consumed and $header_line is empty, causing the "skip header lines" loop to exit. The rest of the commit object is then re-used as the rewritten commit message, causing the new message to include the signature of the original commit. Set IFS to an empty string for the "read" call, thus disabling the word splitting, which causes $header_line to be set to the non-empty value ' '. This allows the loop to fully consume the header lines before emitting the original, intact commit message. [jc: this is literally based on MJG's suggestion] Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: James McCoy <vega.james@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-08pack-objects: do not get distracted by broken symrefsLibravatar Johannes Schindelin1-1/+1
It is quite possible for, say, a remote HEAD to become broken, e.g. when the default branch was renamed. We should still be able to pack our objects when such a thing happens; simply ignore broken symrefs (because they cannot matter for the packing process anyway). This fixes https://github.com/git-for-windows/git/issues/423 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-07clone --dissociate: avoid locking pack filesLibravatar Johannes Schindelin1-1/+1
When `git clone` is asked to dissociate the repository from the reference repository whose objects were used, it is quite possible that the pack files need to be repacked. In that case, the pack files need to be deleted that were originally hard-links to the reference repository's pack files. On platforms where a file cannot be deleted if another process still holds a handle on it, we therefore need to take pains to release all pack files and indexes before dissociating. This fixes https://github.com/git-for-windows/git/issues/446 The test case to demonstrate the breakage technically does not need to be run on Linux or MacOSX. It won't hurt, either, though. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-07t2026: rename worktree prune testLibravatar Michael J Gruber1-0/+0
Linked checkouts are known under the name worktree, now. Rename the test accordingly. Specifically, this avoids the confusion that t2026 is actually not about pruning in or with linked checkouts aka worktress but about pruning worktrees, i.e. about "git worktree prune" rather than "git prune". Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05rebase-i: loosen over-eager check_bad_cmd checkLibravatar Matthieu Moy1-0/+15
804098bb (git rebase -i: add static check for commands and SHA-1, 2015-06-29) tried to check all insns before running any in the todo list, but it did so by implementing its own parser that is a lot stricter than necessary. We used to allow lines that are indented (including comment lines), and we used to allow a whitespace between the insn and the commit object name to be HT, among other things, that are flagged as an invalid line by mistake. Fix this by using the same tokenizer that is used to parse the todo list file in the new check. Whether it's a good thing to accept indented comments is debatable (other commands like "git commit" do not accept them), but we already accepted them in the past, and some people and scripts rely on this behavior. Also, a line starting with space followed by a '#' cannot have any meaning other than being a comment, hence it doesn't harm to accept them as comments. Largely based on patch by: Junio C Hamano <gitster@pobox.com> [jc: updated test with quickfix from Torsten Bögershausen] Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05gc: demonstrate failure with stale remote HEADLibravatar Johannes Schindelin1-0/+13
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05t5700: demonstrate a Windows file locking issue with `git clone --dissociate`Libravatar Johannes Schindelin1-0/+21
On Windows, dissociating from a reference can fail very easily due to pack files that are still in use when they want to be removed. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-02status: don't say 'HEAD detached at HEAD'Libravatar Matthieu Moy1-1/+1
After using "git checkout --detach", the reflog is left with an entry like checkout: moving from ... to HEAD This message is parsed to generate the 'HEAD detached at' message in 'git branch' and 'git status', which leads to the not-so-useful message 'HEAD detached at HEAD'. Instead, when parsing such reflog entry, resolve HEAD to the corresponding commit in the reflog, so that the message becomes 'HEAD detached at $sha1'. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-02t3203: test 'detached at' after checkout --detachLibravatar Matthieu Moy1-0/+13
This currently fails: the output is 'HEAD detached at HEAD'. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-28Sync with v2.5.4Libravatar Junio C Hamano8-0/+248
2015-09-28Sync with 2.4.10Libravatar Junio C Hamano8-0/+248
2015-09-28Sync with 2.3.10Libravatar Junio C Hamano8-0/+248
2015-09-28clone: allow --local from a linked checkoutLibravatar Nguyễn Thái Ngọc Duy1-0/+5
Noticed-by: Bjørnar Snoksrud <snoksrud@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-28enter_repo: allow .git files in strict modeLibravatar Nguyễn Thái Ngọc Duy1-0/+10
Strict mode is about not guessing where .git is. If the user points to a .git file, we know exactly where the target .git dir will be. This makes it possible to serve .git files as repository on the server side. This may be needed even in local clone case because transport.c code uses upload-pack for fetching remote refs. But right now the clone/transport code goes with non-strict. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-28enter_repo: avoid duplicating logic, use is_git_directory() insteadLibravatar Nguyễn Thái Ngọc Duy1-0/+14
It matters for linked checkouts where 'refs' directory won't be available in $GIT_DIR. is_git_directory() knows about $GIT_COMMON_DIR and can handle this case. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-28t0002: add test for enter_repo(), non-strict modeLibravatar Nguyễn Thái Ngọc Duy1-0/+18
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-25http: limit redirection depthLibravatar Blake Burkhart2-0/+7
By default, libcurl will follow circular http redirects forever. Let's put a cap on this so that somebody who can trigger an automated fetch of an arbitrary repository (e.g., for CI) cannot convince git to loop infinitely. The value chosen is 20, which is the same default that Firefox uses. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>