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2017-12-13Merge branch 'ds/for-each-file-in-obj-micro-optim'Libravatar Junio C Hamano1-0/+4
The code to iterate over loose object files got optimized. * ds/for-each-file-in-obj-micro-optim: sha1_file: use strbuf_add() instead of strbuf_addf()
2017-12-13Merge branch 'tg/t-readme-updates'Libravatar Junio C Hamano1-4/+6
Developer doc updates. * tg/t-readme-updates: t/README: document test_cmp_rev t/README: remove mention of adding copyright notices
2017-12-13Merge branch 'ab/pcre2-grep'Libravatar Junio C Hamano3-0/+20
"git grep" compiled with libpcre2 sometimes triggered a segfault, which is being fixed. * ab/pcre2-grep: grep: fix segfault under -P + PCRE2 <=10.30 + (*NO_JIT) test-lib: add LIBPCRE1 & LIBPCRE2 prerequisites
2017-12-13Merge branch 'ra/decorate-limit-refs'Libravatar Junio C Hamano1-0/+101
The tagnames "git log --decorate" uses to annotate the commits can now be limited to subset of available refs with the two additional options, --decorate-refs[-exclude]=<pattern>. * ra/decorate-limit-refs: log: add option to choose which refs to decorate
2017-12-06Merge branch 'jn/ssh-wrappers'Libravatar Junio C Hamano2-24/+48
The ssh-variant 'simple' introduced earlier broke existing installations by not passing --port/-4/-6 and not diagnosing an attempt to pass these as an error. Instead, default to automatically detect how compatible the GIT_SSH/GIT_SSH_COMMAND is to OpenSSH convention and then error out an invocation to make it easier to diagnose connection errors. * jn/ssh-wrappers: connect: correct style of C-style comment ssh: 'simple' variant does not support --port ssh: 'simple' variant does not support -4/-6 ssh: 'auto' variant to select between 'ssh' and 'simple' connect: split ssh option computation to its own function connect: split ssh command line options into separate function connect: split git:// setup into a separate function connect: move no_fork fallback to git_tcp_connect ssh test: make copy_ssh_wrapper_as clean up after itself
2017-12-06Merge branch 'bw/protocol-v1'Libravatar Junio C Hamano4-6/+391
A new mechanism to upgrade the wire protocol in place is proposed and demonstrated that it works with the older versions of Git without harming them. * bw/protocol-v1: Documentation: document Extra Parameters ssh: introduce a 'simple' ssh variant i5700: add interop test for protocol transition http: tell server that the client understands v1 connect: tell server that the client understands v1 connect: teach client to recognize v1 server response upload-pack, receive-pack: introduce protocol version 1 daemon: recognize hidden request arguments protocol: introduce protocol extension mechanisms pkt-line: add packet_write function connect: in ref advertisement, shallows are last
2017-12-06Merge branch 'ph/stash-save-m-option-fix'Libravatar Junio C Hamano1-0/+93
In addition to "git stash -m message", the command learned to accept "git stash -mmessage" form. * ph/stash-save-m-option-fix: stash: learn to parse -m/--message like commit does
2017-12-06Merge branch 'jk/fewer-pack-rescan'Libravatar Junio C Hamano3-23/+82
Internaly we use 0{40} as a placeholder object name to signal the codepath that there is no such object (e.g. the fast-forward check while "git fetch" stores a new remote-tracking ref says "we know there is no 'old' thing pointed at by the ref, as we are creating it anew" by passing 0{40} for the 'old' side), and expect that a codepath to locate an in-core object to return NULL as a sign that the object does not exist. A look-up for an object that does not exist however is quite costly with a repository with large number of packfiles. This access pattern has been optimized. * jk/fewer-pack-rescan: sha1_file: fast-path null sha1 as a missing object everything_local: use "quick" object existence check p5551: add a script to test fetch pack-dir rescans t/perf/lib-pack: use fast-import checkpoint to create packs p5550: factor out nonsense-pack creation
2017-12-06Merge branch 'jt/submodule-tests-cleanup'Libravatar Junio C Hamano1-218/+125
Further test clean-up. * jt/submodule-tests-cleanup: Tests: clean up submodule recursive helpers
2017-12-06Merge branch 'cc/git-packet-pm'Libravatar Junio C Hamano1-2/+2
Code clean-up. * cc/git-packet-pm: Git/Packet.pm: use 'if' instead of 'unless' Git/Packet: clarify that packet_required_key_val_read allows EOF
2017-12-06Merge branch 'hm/config-parse-expiry-date'Libravatar Junio C Hamano2-0/+42
"git config --expiry-date gc.reflogexpire" can read "2.weeks" from the configuration and report it as a timestamp, just like "--int" would read "1k" and report 1024, to help consumption by scripts. * hm/config-parse-expiry-date: config: add --expiry-date
2017-12-06Merge branch 'cc/perf-run-config'Libravatar Junio C Hamano3-15/+89
* cc/perf-run-config: perf: store subsection results in "test-results/$GIT_PERF_SUBSECTION/" perf/run: show name of rev being built perf/run: add run_subsection() perf/run: update get_var_from_env_or_config() for subsections perf/run: add get_subsections() perf/run: add calls to get_var_from_env_or_config() perf/run: add GIT_PERF_DIRS_OR_REVS perf/run: add get_var_from_env_or_config() perf/run: add '--config' option to the 'run' script
2017-12-06Merge branch 'sb/submodule-recursive-checkout-detach-head'Libravatar Junio C Hamano1-0/+17
"git checkout --recursive" may overwrite and rewind the history of the branch that happens to be checked out in submodule repositories, which might not be desirable. Detach the HEAD but still allow the recursive checkout to succeed in such a case. * sb/submodule-recursive-checkout-detach-head: Documentation/checkout: clarify submodule HEADs to be detached recursive submodules: detach HEAD from new state
2017-12-04sha1_file: use strbuf_add() instead of strbuf_addf()Libravatar Derrick Stolee1-0/+4
Replace use of strbuf_addf() with strbuf_add() when enumerating loose objects in for_each_file_in_obj_subdir(). Since we already check the length and hex-values of the string before consuming the path, we can prevent extra computation by using the lower- level method. One consumer of for_each_file_in_obj_subdir() is the abbreviation code. OID abbreviations use a cached list of loose objects (per object subdirectory) to make repeated queries fast, but there is significant cache load time when there are many loose objects. Most repositories do not have many loose objects before repacking, but in the GVFS case the repos can grow to have millions of loose objects. Profiling 'git log' performance in GitForWindows on a GVFS-enabled repo with ~2.5 million loose objects revealed 12% of the CPU time was spent in strbuf_addf(). Add a new performance test to p4211-line-log.sh that is more sensitive to this cache-loading. By limiting to 1000 commits, we more closely resemble user wait time when reading history into a pager. For a copy of the Linux repo with two ~512 MB packfiles and ~572K loose objects, running 'git log --oneline --parents --raw -1000' had the following performance: HEAD~1 HEAD ---------------------------------------- 7.70(7.15+0.54) 7.44(7.09+0.29) -3.4% Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-28Merge branch 'rs/include-comments-before-the-function-header'Libravatar Junio C Hamano3-10/+38
"git grep -W", "git diff -W" and their friends learned a heuristic to extend a pre-context beyond the line that matches the "function pattern" (aka "diff.*.xfuncname") to include a comment block, if exists, that immediately precedes it. * rs/include-comments-before-the-function-header: grep: show non-empty lines before functions with -W grep: update boundary variable for pre-context t7810: improve check of -W with user-defined function lines xdiff: show non-empty lines before functions with -W xdiff: factor out is_func_rec() t4051: add test for comments preceding function lines
2017-11-28Merge branch 'ma/branch-list-paginate'Libravatar Junio C Hamano1-0/+38
"git branch --list" learned to show its output through the pager by default when the output is going to a terminal, which is controlled by the pager.branch configuration variable. This is similar to a recent change to "git tag --list". * ma/branch-list-paginate: branch: change default of `pager.branch` to "on" branch: respect `pager.branch` in list-mode only t7006: add tests for how git branch paginates
2017-11-28Merge branch 'jc/branch-name-sanity'Libravatar Junio C Hamano1-0/+43
"git branch" and "git checkout -b" are now forbidden from creating a branch whose name is "HEAD". * jc/branch-name-sanity: builtin/branch: remove redundant check for HEAD branch: correctly reject refs/heads/{-dash,HEAD} branch: split validate_new_branchname() into two branch: streamline "attr_only" handling in validate_new_branchname()
2017-11-27Merge branch 'ew/rebase-mboxrd'Libravatar Junio C Hamano1-0/+22
When "git rebase" prepared an mailbox of changes and fed it to "git am" to replay them, it was confused when a stray "From " happened to be in the log message of one of the replayed changes. This has been corrected. * ew/rebase-mboxrd: rebase: use mboxrd format to avoid split errors
2017-11-27Merge branch 'tb/add-renormalize'Libravatar Junio C Hamano1-0/+30
"git add --renormalize ." is a new and safer way to record the fact that you are correcting the end-of-line convention and other "convert_to_git()" glitches in the in-repository data. * tb/add-renormalize: add: introduce "--renormalize"
2017-11-27Merge branch 'rs/apply-inaccurate-eof-with-incomplete-line'Libravatar Junio C Hamano1-0/+14
"git apply --inaccurate-eof" when used with "--ignore-space-change" triggered an internal sanity check, which has been fixed. * rs/apply-inaccurate-eof-with-incomplete-line: apply: update line lengths for --inaccurate-eof
2017-11-27Merge branch 'sb/test-cherry-pick-submodule-getting-in-a-way'Libravatar Junio C Hamano1-0/+36
The three-way merge performed by "git cherry-pick" was confused when a new submodule was added in the meantime, which has been fixed (or "papered over"). * sb/test-cherry-pick-submodule-getting-in-a-way: merge-recursive: handle addition of submodule on our side of history t/3512: demonstrate unrelated submodule/file conflict as cherry-pick failure
2017-11-27Merge branch 'tz/notes-error-to-stderr'Libravatar Junio C Hamano2-5/+5
"git notes" sent its error message to its standard output stream, which was corrected. * tz/notes-error-to-stderr: notes: send "Automatic notes merge failed" messages to stderr
2017-11-27Merge branch 'tz/redirect-fix'Libravatar Junio C Hamano1-1/+1
A few scripts (both in production and tests) incorrectly redirected their error output. These have been corrected. * tz/redirect-fix: rebase: fix stderr redirect in apply_autostash() t/lib-gpg: fix gpgconf stderr redirect to /dev/null
2017-11-27Merge branch 'jc/ignore-cr-at-eol'Libravatar Junio C Hamano1-0/+28
The "diff" family of commands learned to ignore differences in carriage return at the end of line. * jc/ignore-cr-at-eol: diff: --ignore-cr-at-eol xdiff: reassign xpparm_t.flags bits
2017-11-27t/README: document test_cmp_revLibravatar Thomas Gummerer1-0/+5
test_cmp_rev is a useful function that's used in quite a few test scripts. It is however not documented in t/README. Document it. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-27t/README: remove mention of adding copyright noticesLibravatar Thomas Gummerer1-4/+1
We generally no longer include copyright notices in new test scripts. However t/README still mentions it as something to include at the top of every new script. Remove that mention as it's outdated. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-24grep: fix segfault under -P + PCRE2 <=10.30 + (*NO_JIT)Libravatar Ævar Arnfjörð Bjarmason1-0/+6
Fix a bug in the compilation of PCRE2 patterns under JIT (the most common runtime configuration). Any pattern with a (*NO_JIT) verb would segfault in any currently released PCRE2 version: $ git grep -P '(*NO_JIT)hi.*there' Segmentation fault That this segfaulted was a bug in PCRE2 itself, after reporting it[1] on pcre-dev it's been fixed in a yet-to-be-released version of PCRE (presumably released first as 10.31). Now it'll die with: $ git grep -P '(*NO_JIT)hi.*there' fatal: pcre2_jit_match failed with error code -45: bad JIT option But the cause of the bug is in our own code dating back to my 94da9193a6 ("grep: add support for PCRE v2", 2017-06-01). As explained at more length in the comment being added here, it isn't sufficient to just check pcre2_config() to see whether the JIT should be used, pcre2_pattern_info() also has to be asked. This is something I discovered myself when fiddling around with PCRE2 verbs in patterns passed to git. I don't expect that any user of git has encountered this given the obscurity of passing PCRE2 verbs through to the library, along with the relative obscurity of (*NO_JIT) itself. 1. "How am I supposed to use PCRE2 JIT in the face of (*NO_JIT) ?" (<CACBZZX5mMqDuWuFmi7sRBp3wH6CFyd-ghACukd=v0NN=rBMnJg@mail.gmail.com> & https://lists.exim.org/lurker/thread/20171123.101502.7f0d38ca.en.html) on the pcre-dev mailing list Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-24test-lib: add LIBPCRE1 & LIBPCRE2 prerequisitesLibravatar Ævar Arnfjörð Bjarmason2-0/+14
Add LIBPCRE1 and LIBPCRE2 prerequisites which are true when git is compiled with USE_LIBPCRE1=YesPlease or USE_LIBPCRE2=YesPlease, respectively. The syntax of PCRE1 and PCRE2 isn't the same in all cases (see pcresyntax(3) and pcre2syntax(3)). If test are added that test for those they'll need to be guarded by these new prerequisites. The subsequent patch will make use of LIBPCRE2, so LIBPCRE1 isn't strictly needed for now, but let's add it for consistency and so that checking for it doesn't have to be done with the less obvious "PCRE, !LIBPCRE2", which while semantically the same is more confusing, and would lead to bugs if PCRE v3 is ever released as the tests would mean v1, not any non-v2 version. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-24stash: learn to parse -m/--message like commit doesLibravatar Phil Hord1-0/+93
`git stash push -m foo` uses "foo" as the message for the stash. But `git stash push -m"foo"` does not parse successfully. Similarly `git stash push --message="My stash message"` also fails. The stash documentation doesn't suggest this syntax should work, but gitcli does and my fingers have learned this pattern long ago for `commit`. Teach `git stash` to parse -mFoo and --message=Foo the same as `git commit` would do. Even though it's an internal function, add similar support to create_stash() for consistency. Signed-off-by: Phil Hord <phil.hord@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22Git/Packet: clarify that packet_required_key_val_read allows EOFLibravatar Christian Couder1-2/+2
The function calls itself "required", but it does not die when it sees an unexpected EOF. Let's rename it to "packet_key_val_read()". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22Tests: clean up submodule recursive helpersLibravatar Jonathan Tan1-218/+125
This continues the work in commit d3b5a49 ("Tests: clean up and document submodule helpers", 2017-11-08). Factor out the commonalities from test_submodule_switch_recursing_with_args() and test_submodule_forced_switch_recursing_with_args() in lib-submodule-update.sh, and document their usage. Some tests differ slightly in their test assertions; I have used the superset of those assertions in that case. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22log: add option to choose which refs to decorateLibravatar Rafael Ascensão1-0/+101
When `log --decorate` is used, git will decorate commits with all available refs. While in most cases this may give the desired effect, under some conditions it can lead to excessively verbose output. Introduce two command line options, `--decorate-refs=<pattern>` and `--decorate-refs-exclude=<pattern>` to allow the user to select which refs are used in decoration. When "--decorate-refs=<pattern>" is given, only the refs that match the pattern are used in decoration. The refs that match the pattern when "--decorate-refs-exclude=<pattern>" is given, are never used in decoration. These options follow the same convention for mixing negative and positive patterns across the system, assuming that the inclusive default is to match all refs available. (1) if there is no positive pattern given, pretend as if an inclusive default positive pattern was given; (2) for each candidate, reject it if it matches no positive pattern, or if it matches any one of the negative patterns. The rules for what is considered a match are slightly different from the rules used elsewhere. Commands like `log --glob` assume a trailing '/*' when glob chars are not present in the pattern. This makes it difficult to specify a single ref. On the other hand, commands like `describe --match --all` allow specifying exact refs, but do not have the convenience of allowing "shorthand refs" like 'refs/heads' or 'heads' to refer to 'refs/heads/*'. The commands introduced in this patch consider a match if: (a) the pattern contains globs chars, and regular pattern matching returns a match. (b) the pattern does not contain glob chars, and ref '<pattern>' exists, or if ref exists under '<pattern>/' This allows both behaviours (allowing single refs and shorthand refs) yet remaining compatible with existent commands. Helped-by: Kevin Daudt <me@ikke.info> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Rafael Ascensão <rafa.almas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21Merge branch 'av/fsmonitor'Libravatar Junio C Hamano2-11/+18
Various fixes to bp/fsmonitor topic. * av/fsmonitor: fsmonitor: simplify determining the git worktree under Windows fsmonitor: store fsmonitor bitmap before splitting index fsmonitor: read from getcwd(), not the PWD environment variable fsmonitor: delay updating state until after split index is merged fsmonitor: document GIT_TRACE_FSMONITOR fsmonitor: don't bother pretty-printing JSON from watchman fsmonitor: set the PWD to the top of the working tree
2017-11-21Merge branch 'bp/fsmonitor'Libravatar Junio C Hamano9-0/+861
We learned to talk to watchman to speed up "git status" and other operations that need to see which paths have been modified. * bp/fsmonitor: fsmonitor: preserve utf8 filenames in fsmonitor-watchman log fsmonitor: read entirety of watchman output fsmonitor: MINGW support for watchman integration fsmonitor: add a performance test fsmonitor: add a sample integration script for Watchman fsmonitor: add test cases for fsmonitor extension split-index: disable the fsmonitor extension when running the split index test fsmonitor: add a test tool to dump the index extension update-index: add fsmonitor support to update-index ls-files: Add support in ls-files to display the fsmonitor valid bit fsmonitor: add documentation for the fsmonitor extension. fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files. update-index: add a new --force-write-index option preload-index: add override to enable testing preload-index bswap: add 64 bit endianness helper get_be64
2017-11-21Merge branch 'cb/t4201-robustify' into maintLibravatar Junio C Hamano2-5/+7
A test update. * cb/t4201-robustify: t4201: make use of abbreviation in the test more robust
2017-11-21Merge branch 'tz/fsf-address-update' into maintLibravatar Junio C Hamano1-3/+1
Replace the mailing address of FSF to a URL, as FSF prefers. * tz/fsf-address-update: Replace Free Software Foundation address in license notices Replace Free Software Foundation address in license notices
2017-11-21Merge branch 'sr/wrapper-quote-filenames' into maintLibravatar Junio C Hamano2-2/+2
Some error messages did not quote filenames shown in it, which have been fixed. * sr/wrapper-quote-filenames: wrapper.c: consistently quote filenames in error messages
2017-11-21Merge branch 'bw/rebase-i-ignored-submodule-fix' into maintLibravatar Junio C Hamano1-0/+17
"git rebase -i" recently started misbehaving when a submodule that is configured with 'submodule.<name>.ignore' is dirty; this has been corrected. * bw/rebase-i-ignored-submodule-fix: wt-status: actually ignore submodules when requested
2017-11-21ssh: 'simple' variant does not support --portLibravatar Jonathan Nieder2-2/+10
When trying to connect to an ssh:// URL with port explicitly specified and the ssh command configured with GIT_SSH does not support such a setting, it is less confusing to error out than to silently suppress the port setting and continue. This requires updating the GIT_SSH setting in t5603-clone-dirname.sh. That test is about the directory name produced when cloning various URLs. It uses an ssh wrapper that ignores all its arguments but does not declare that it supports a port argument; update it to set GIT_SSH_VARIANT=ssh to do so. (Real-life ssh wrappers that pass a port argument to OpenSSH would also support -G and would not require such an update.) Reported-by: William Yan <wyan@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21ssh: 'simple' variant does not support -4/-6Libravatar Jonathan Nieder1-6/+6
If the user passes -4/--ipv4 or -6/--ipv6 to "git fetch" or "git push" and the ssh command configured with GIT_SSH does not support such a setting, error out instead of ignoring the option and continuing. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21ssh: 'auto' variant to select between 'ssh' and 'simple'Libravatar Jonathan Nieder1-0/+21
Android's "repo" tool is a tool for managing a large codebase consisting of multiple smaller repositories, similar to Git's submodule feature. Starting with Git 94b8ae5a (ssh: introduce a 'simple' ssh variant, 2017-10-16), users noticed that it stopped handling the port in ssh:// URLs. The cause: when it encounters ssh:// URLs, repo pre-connects to the server and sets GIT_SSH to a helper ".repo/repo/git_ssh" that reuses that connection. Before 94b8ae5a, the helper was assumed to support OpenSSH options for lack of a better guess and got passed a -p option to set the port. After that patch, it uses the new default of a simple helper that does not accept an option to set the port. The next release of "repo" will set GIT_SSH_VARIANT to "ssh" to avoid that. But users of old versions and of other similar GIT_SSH implementations would not get the benefit of that fix. So update the default to use OpenSSH options again, with a twist. As observed in 94b8ae5a, we cannot assume that $GIT_SSH always handles OpenSSH options: common helpers such as travis-ci's dpl[*] are configured using GIT_SSH and do not accept OpenSSH options. So make the default a new variant "auto", with the following behavior: 1. First, check for a recognized basename, like today. 2. If the basename is not recognized, check whether $GIT_SSH supports OpenSSH options by running $GIT_SSH -G <options> <host> This returns status 0 and prints configuration in OpenSSH if it recognizes all <options> and returns status 255 if it encounters an unrecognized option. A wrapper script like exec ssh -- "$@" would fail with ssh: Could not resolve hostname -g: Name or service not known , correctly reflecting that it does not support OpenSSH options. The command is run with stdin, stdout, and stderr redirected to /dev/null so even a command that expects a terminal would exit immediately. 3. Based on the result from step (2), behave like "ssh" (if it succeeded) or "simple" (if it failed). This way, the default ssh variant for unrecognized commands can handle both the repo and dpl cases as intended. This autodetection has been running on Google workstations since 2017-10-23 with no reported negative effects. [*] https://github.com/travis-ci/dpl/blob/6c3fddfda1f2a85944c544446b068bac0a77c049/lib/dpl/provider.rb#L215 Reported-by: William Yan <wyan@google.com> Improved-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21ssh test: make copy_ssh_wrapper_as clean up after itselfLibravatar Jonathan Nieder1-16/+12
Simplify by not allowing the copied ssh wrapper to persist between tests. This way, tests can be safely reordered, added, and removed with less fear of hidden side effects. This also avoids having to call setup_ssh_wrapper to restore the value of GIT_SSH after this battery of tests, since it means each test will restore it individually. Noticed because on Windows, if `uplink.exe` exists, the MSYS2 Bash will overwrite that when redirecting via `>uplink`. A proposed test wrote a script to 'uplink' after a previous test created uplink.exe using copy_ssh_wrapper_as, so the script written with '>uplink' had the wrong filename and failed. Reported-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21p5551: add a script to test fetch pack-dir rescansLibravatar Jeff King1-0/+55
Since fetch often deals with object-ids we don't have (yet), it's an easy mistake for it to use a function like parse_object() that gives the correct result (e.g., NULL) but does so very slowly (because after failing to find the object, we re-scan the pack directory looking for new packs). The regular test suite won't catch this because the end result is correct, but we would want to know about performance regressions, too. Let's add a test to the regression suite. Note that this uses a synthetic repository that has a large number of packs. That's not ideal, as it means we're not testing what "normal" users see (in fact, some of these problems have existed for ages without anybody noticing simply because a rescan on a normal repository just isn't that expensive). So what we're really looking for here is the spike you'd notice in a pathological case (a lot of unknown objects coming into a repo with a lot of packs). If that's fast, then the normal cases should be, too. Note that the test also makes liberal use of $MODERN_GIT for setup; some of these regressions go back a ways, and we should be able to use it to find the problems there. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21t/perf/lib-pack: use fast-import checkpoint to create packsLibravatar Jeff King1-7/+3
We currently use fast-import only to create a large number of objects, and then run O(n) invocations of pack-objects to turn them into packs. We can do this faster by just asking fast-import to checkpoint and create a pack for each (after telling it not to turn loose tiny packs). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21p5550: factor out nonsense-pack creationLibravatar Jeff King2-23/+31
We have a function to create a bunch of irrelevant packs to measure the expense of reprepare_packed_git(). Let's make that available to other perf scripts. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21grep: show non-empty lines before functions with -WLibravatar René Scharfe1-1/+1
Non-empty lines before a function definition are most likely comments for that function and thus relevant. Include them in function context. Such a non-empty line might also belong to the preceding function if there is no separating blank line. Stop extending the context upwards also at the next function line to make sure only one extra function body is shown at most. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21t7810: improve check of -W with user-defined function linesLibravatar René Scharfe1-10/+31
The check for function context (-W) together with user-defined function line patterns reuses hello.c and pretends it's written in a language in which function lines contain either "printf" or a trailing curly brace. That's a bit obscure. Make the test easier to read by adding a small PowerShell script, using a simple, but meaningful expression, and separating out checks for different aspects into dedicated tests instead of simply matching the whole output byte for byte. Also include a test for showing comments before function lines like git Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21xdiff: show non-empty lines before functions with -WLibravatar René Scharfe1-1/+1
Non-empty lines before a function definition are most likely comments for that function and thus relevant. Include them in function context. Such a non-empty line might also belong to the preceeding function if there is no separating blank line. Stop extending the context upwards also at the next function line to make sure only one extra function body is shown at most. Original-patch-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21t4051: add test for comments preceding function linesLibravatar René Scharfe2-0/+7
When showing function context it would be helpful to show comments immediately before declarations, as they are most likely relevant. Add a test for that, but without specifying the choice of lines too rigidly in the test---we may want to stop before and not include "/*" in the future, for example. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-20branch: change default of `pager.branch` to "on"Libravatar Martin Ågren1-5/+5
This is similar to ff1e72483 (tag: change default of `pager.tag` to "on", 2017-08-02) and is safe now that we do not consider `pager.branch` at all when we are not listing branches. This change will help with listing many branches, but will not hurt users of `git branch --edit-description` as it would have before the previous commit. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>