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2016-11-02t0021: fix filehandle usage on older perlLibravatar Jeff King1-0/+1
The rot13-filter.pl script calls methods on implicitly defined filehandles (STDOUT, and the result of an open() call). Prior to perl 5.13, these methods are not automatically loaded, and perl will complain with: Can't locate object method "flush" via package "IO::Handle" Let's explicitly load IO::File (which inherits from IO::Handle). That's more than we need for just "flush", but matches what perl has done since: http://perl5.git.perl.org/perl.git/commit/15e6cdd91beb4cefae4b65e855d68cf64766965d Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-02t0021: use $PERL_PATH for rot13-filter.plLibravatar Jeff King2-9/+11
The rot13-filter.pl script hardcodes "#!/usr/bin/perl", and does not respect $PERL_PATH at all. That is a problem if the system does not have perl at that path, or if it has a perl that is too old to run a complicated script like the rot13-filter (but PERL_PATH points to a more modern one). We can fix this by using write_script() to create a new copy of the script with the correct #!-line. In theory we could move the whole script inside t0021-conversion.sh rather than having it as an auxiliary file, but it's long enough that it just makes things harder to read. As a bonus, we can stop using the full path to the script in the filter-process config we add (because the trash directory is in our PATH). Not only is this shorter, but it sidesteps any shell-quoting issues. The original was broken when $TEST_DIRECTORY contained a space, because it was interpolated in the outer script. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-02t0021: put $TEST_ROOT in $PATHLibravatar Jeff King1-3/+4
We create a rot13.sh script in the trash directory, but need to call it by its full path when we have moved our cwd to another directory. Let's just put $TEST_ROOT in our $PATH so that the script is always found. This is a minor convenience for rot13.sh, but will be a major one when we switch rot13-filter.pl to a script in the same directory, as it means we will not have to deal with shell quoting inside the filter-process config. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-02t0021: use write_script to create rot13 shell scriptLibravatar Jeff King1-3/+1
This avoids us fooling around with $SHELL_PATH and the executable bit ourselves. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17contrib/long-running-filter: add long running filter exampleLibravatar Lars Schneider2-1/+131
Add a simple pass-thru filter as example implementation for the Git filter protocol version 2. See Documentation/gitattributes.txt, section "Filter Protocol" for more info. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17convert: add filter.<driver>.process optionLibravatar Lars Schneider4-10/+1082
Git's clean/smudge mechanism invokes an external filter process for every single blob that is affected by a filter. If Git filters a lot of blobs then the startup time of the external filter processes can become a significant part of the overall Git execution time. In a preliminary performance test this developer used a clean/smudge filter written in golang to filter 12,000 files. This process took 364s with the existing filter mechanism and 5s with the new mechanism. See details here: https://github.com/github/git-lfs/pull/1382 This patch adds the `filter.<driver>.process` string option which, if used, keeps the external filter process running and processes all blobs with the packet format (pkt-line) based protocol over standard input and standard output. The full protocol is explained in detail in `Documentation/gitattributes.txt`. A few key decisions: * The long running filter process is referred to as filter protocol version 2 because the existing single shot filter invocation is considered version 1. * Git sends a welcome message and expects a response right after the external filter process has started. This ensures that Git will not hang if a version 1 filter is incorrectly used with the filter.<driver>.process option for version 2 filters. In addition, Git can detect this kind of error and warn the user. * The status of a filter operation (e.g. "success" or "error) is set before the actual response and (if necessary!) re-set after the response. The advantage of this two step status response is that if the filter detects an error early, then the filter can communicate this and Git does not even need to create structures to read the response. * All status responses are pkt-line lists terminated with a flush packet. This allows us to send other status fields with the same protocol in the future. Helped-by: Martin-Louis Bright <mlbright@gmail.com> Reviewed-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17convert: prepare filter.<driver>.process optionLibravatar Lars Schneider1-26/+34
Refactor the existing 'single shot filter mechanism' and prepare the new 'long running filter mechanism'. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17convert: make apply_filter() adhere to standard Git error handlingLibravatar Lars Schneider1-9/+6
apply_filter() returns a boolean that tells the caller if it "did convert or did not convert". The variable `ret` was used throughout the function to track errors whereas `1` denoted success and `0` failure. This is unusual for the Git source where `0` denotes success. Rename the variable and flip its value to make the function easier readable for Git developers. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17pkt-line: add functions to read/write flush terminated packet streamsLibravatar Lars Schneider2-0/+80
write_packetized_from_fd() and write_packetized_from_buf() write a stream of packets. All content packets use the maximal packet size except for the last one. After the last content packet a `flush` control packet is written. read_packetized_to_strbuf() reads arbitrary sized packets until it detects a `flush` packet. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17pkt-line: add packet_write_gently()Libravatar Lars Schneider1-0/+17
packet_write_fmt_gently() uses format_packet() which lets the caller only send string data via "%s". That means it cannot be used for arbitrary data that may contain NULs. Add packet_write_gently() which writes arbitrary data and does not die in case of an error. The function is used by other pkt-line functions in a subsequent patch. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17pkt-line: add packet_flush_gently()Libravatar Lars Schneider2-0/+9
packet_flush() would die in case of a write error even though for some callers an error would be acceptable. Add packet_flush_gently() which writes a pkt-line flush packet like packet_flush() but does not die in case of an error. The function is used in a subsequent patch. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17pkt-line: add packet_write_fmt_gently()Libravatar Lars Schneider2-4/+31
packet_write_fmt() would die in case of a write error even though for some callers an error would be acceptable. Add packet_write_fmt_gently() which writes a formatted pkt-line like packet_write_fmt() but does not die in case of an error. The function is used in a subsequent patch. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17pkt-line: extract set_packet_header()Libravatar Lars Schneider1-6/+13
Extracted set_packet_header() function converts an integer to a 4 byte hex string. Make this function locally available so that other pkt-line functions could use it. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17pkt-line: rename packet_write() to packet_write_fmt()Libravatar Lars Schneider11-29/+29
packet_write() should be called packet_write_fmt() because it is a printf-like function that takes a format string as first parameter. packet_write_fmt() should be used for text strings only. Arbitrary binary data should use a new packet_write() function that is introduced in a subsequent patch. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17run-command: add clean_on_exit_handlerLibravatar Lars Schneider2-4/+20
Some processes might want to perform cleanup tasks before Git kills them due to the 'clean_on_exit' flag. Let's give them an interface for doing this. The feature is used in a subsequent patch. Please note, that the cleanup callback is not executed if Git dies of a signal. The reason is that only "async-signal-safe" functions would be allowed to be call in that case. Since we cannot control what functions the callback will use, we will not support the case. See 507d7804 for more details. Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17run-command: move check_pipe() from write_or_die to run_commandLibravatar Lars Schneider3-16/+16
Move check_pipe() to run_command and make it public. This is necessary to call the function from pkt-line in a subsequent patch. While at it, make async_exit() static to run_command.c as it is no longer used from outside. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17convert: modernize testsLibravatar Lars Schneider1-29/+29
Use `test_config` to set the config, check that files are empty with `test_must_be_empty`, compare files with `test_cmp`, and remove spaces after ">" and "<". Please note that the "rot13" filter configured in "setup" keeps using `git config` instead of `test_config` because subsequent tests might depend on it. Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-17convert: quote filter names in error messagesLibravatar Lars Schneider1-6/+6
Git filter driver commands with spaces (e.g. `filter.sh foo`) are hard to read in error messages. Quote them to improve the readability. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-12Sync with maintLibravatar Junio C Hamano3-446/+402
* maint: l10n: zh_CN: review for git v2.10.0 l10n l10n: zh_CN: fixed some typos for git 2.10.0 l10n: pt_PT: update Portuguese repository info l10n: pt_PT: update Portuguese translation
2016-09-12First batch for 2.11Libravatar Junio C Hamano1-0/+41
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-12Merge branch 'sb/transport-report-missing-submodule-on-stderr'Libravatar Junio C Hamano1-1/+1
Message cleanup. * sb/transport-report-missing-submodule-on-stderr: transport: report missing submodule pushes consistently on stderr
2016-09-12Merge branch 'ep/use-git-trace-curl-in-tests'Libravatar Junio C Hamano4-9/+19
Update a few tests that used to use GIT_CURL_VERBOSE to use the newer GIT_TRACE_CURL. * ep/use-git-trace-curl-in-tests: t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var t5550-http-fetch-dumb.sh: use the GIT_TRACE_CURL environment var test-lib.sh: preserve GIT_TRACE_CURL from the environment t5541-http-push-smart.sh: use the GIT_TRACE_CURL environment var
2016-09-12Merge branch 'sb/xdiff-remove-unused-static-decl'Libravatar Junio C Hamano1-9/+0
Code cleanup. * sb/xdiff-remove-unused-static-decl: xdiff: remove unneeded declarations
2016-09-12Merge branch 'js/t6026-clean-up'Libravatar Junio C Hamano1-0/+2
A test spawned a short-lived background process, which sometimes prevented the test directory from getting removed at the end of the script on some platforms. * js/t6026-clean-up: t6026-merge-attr: clean up background process at end of test case
2016-09-12Merge branch 'js/t9903-chaining'Libravatar Junio C Hamano1-1/+1
* js/t9903-chaining: t9903: fix broken && chain
2016-09-12Merge branch 'rs/hex2chr'Libravatar Junio C Hamano6-78/+21
* rs/hex2chr: introduce hex2chr() for converting two hexadecimal digits to a character
2016-09-12Merge branch 'rs/compat-strdup'Libravatar Junio C Hamano4-19/+33
* rs/compat-strdup: compat: move strdup(3) replacement to its own file
2016-09-12Merge branch 'jc/forbid-symbolic-ref-d-HEAD'Libravatar Junio C Hamano2-7/+16
"git symbolic-ref -d HEAD" happily removes the symbolic ref, but the resulting repository becomes an invalid one. Teach the command to forbid removal of HEAD. * jc/forbid-symbolic-ref-d-HEAD: symbolic-ref -d: do not allow removal of HEAD
2016-09-12Merge branch 'jc/submodule-anchor-git-dir'Libravatar Junio C Hamano2-0/+36
Having a submodule whose ".git" repository is somehow corrupt caused a few commands that recurse into submodules loop forever. * jc/submodule-anchor-git-dir: submodule: avoid auto-discovery in prepare_submodule_repo_env()
2016-09-12Merge branch 'jk/squelch-false-warning-from-gcc-o3'Libravatar Junio C Hamano3-1/+3
* jk/squelch-false-warning-from-gcc-o3: color_parse_mem: initialize "struct color" temporary error_errno: use constant return similar to error()
2016-09-12Merge branch 'jk/test-lib-drop-pid-from-results'Libravatar Junio C Hamano1-2/+2
The test framework left the number of tests and success/failure count in the t/test-results directory, keyed by the name of the test script plus the process ID. The latter however turned out not to serve any useful purpose. The process ID part of the filename has been removed. * jk/test-lib-drop-pid-from-results: test-lib: drop PID from test-results/*.count
2016-09-12Merge branch 'jc/am-read-author-file'Libravatar Junio C Hamano1-58/+45
Extract a small helper out of the function that reads the authors script file "git am" internally uses. * jc/am-read-author-file: am: refactor read_author_script()
2016-09-12Merge branch 'jk/diff-submodule-diff-inline'Libravatar Junio C Hamano20-161/+1663
The "git diff --submodule={short,log}" mechanism has been enhanced to allow "--submodule=diff" to show the patch between the submodule commits bound to the superproject. * jk/diff-submodule-diff-inline: diff: teach diff to display submodule difference with an inline diff submodule: refactor show_submodule_summary with helper function submodule: convert show_submodule_summary to use struct object_id * allow do_submodule_path to work even if submodule isn't checked out diff: prepare for additional submodule formats graph: add support for --line-prefix on all graph-aware output diff.c: remove output_prefix_length field cache: add empty_tree_oid object and helper function
2016-09-12Merge tag 'l10n-2.10.0-rnd2.3' of git://github.com/git-l10n/git-po into maintLibravatar Junio C Hamano3-446/+402
l10n-2.10.0-rnd2.3 * tag 'l10n-2.10.0-rnd2.3' of git://github.com/git-l10n/git-po: l10n: zh_CN: review for git v2.10.0 l10n l10n: zh_CN: fixed some typos for git 2.10.0 l10n: pt_PT: update Portuguese repository info l10n: pt_PT: update Portuguese translation
2016-09-11l10n: zh_CN: review for git v2.10.0 l10nLibravatar Ray Chen1-50/+50
Signed-off-by: Ray Chen <oldsharp@gmail.com>
2016-09-11l10n: zh_CN: fixed some typos for git 2.10.0Libravatar Jiang Xin1-4/+4
Reviewed-by: Ray <tvvocold@163.com> Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
2016-09-08Sync with maintLibravatar Junio C Hamano1-0/+83
* maint: Prepare for 2.9.4
2016-09-08Start the 2.11 cycleLibravatar Junio C Hamano3-2/+58
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-08Merge branch 'bh/diff-highlight-graph'Libravatar Junio C Hamano5-6/+338
"diff-highlight" script (in contrib/) learned to work better with "git log -p --graph" output. * bh/diff-highlight-graph: diff-highlight: avoid highlighting combined diffs diff-highlight: add multi-byte tests diff-highlight: ignore test cruft diff-highlight: add support for --graph output diff-highlight: add failing test for handling --graph output diff-highlight: add some tests
2016-09-08Merge branch 'hv/doc-commit-reference-style'Libravatar Junio C Hamano1-3/+8
A small doc update. * hv/doc-commit-reference-style: SubmittingPatches: use gitk's "Copy commit summary" format
2016-09-08Merge branch 'sb/submodule-clone-rr'Libravatar Junio C Hamano8-121/+379
"git clone --resurse-submodules --reference $path $URL" is a way to reduce network transfer cost by borrowing objects in an existing $path repository when cloning the superproject from $URL; it learned to also peek into $path for presense of corresponding repositories of submodules and borrow objects from there when able. * sb/submodule-clone-rr: clone: recursive and reference option triggers submodule alternates clone: implement optional references clone: clarify option_reference as required clone: factor out checking for an alternate path submodule--helper update-clone: allow multiple references submodule--helper module-clone: allow multiple references t7408: merge short tests, factor out testing method t7408: modernize style
2016-09-08Merge branch 'jh/status-v2-porcelain'Libravatar Junio C Hamano7-112/+1306
Enhance "git status --porcelain" output by collecting more data on the state of the index and the working tree files, which may further be used to teach git-prompt (in contrib/) to make fewer calls to git. * jh/status-v2-porcelain: status: unit tests for --porcelain=v2 test-lib-functions.sh: add lf_to_nul helper git-status.txt: describe --porcelain=v2 format status: print branch info with --porcelain=v2 --branch status: print per-file porcelain v2 status data status: collect per-file data for --porcelain=v2 status: support --porcelain[=<version>] status: cleanup API to wt_status_print status: rename long-format print routines
2016-09-08Merge branch 'po/range-doc'Libravatar Junio C Hamano5-51/+88
Clarify various ways to specify the "revision ranges" in the documentation. * po/range-doc: doc: revisions: sort examples and fix alignment of the unchanged doc: revisions: show revision expansion in examples doc: revisions - clarify reachability examples doc: revisions - define `reachable` doc: gitrevisions - clarify 'latter case' is revision walk doc: gitrevisions - use 'reachable' in page description doc: revisions: single vs multi-parent notation comparison doc: revisions: extra clarification of <rev>^! notation effects doc: revisions: give headings for the two and three dot notations doc: show the actual left, right, and boundary marks doc: revisions - name the left and right sides doc: use 'symmetric difference' consistently
2016-09-08Merge branch 'rt/help-unknown'Libravatar Junio C Hamano3-8/+89
"git nosuchcommand --help" said "No manual entry for gitnosuchcommand", which was not intuitive, given that "git nosuchcommand" said "git: 'nosuchcommand' is not a git command". * rt/help-unknown: help: make option --help open man pages only for Git commands help: introduce option --exclude-guides
2016-09-08Merge branch 'cc/receive-pack-limit'Libravatar Junio C Hamano8-0/+93
An incoming "git push" that attempts to push too many bytes can now be rejected by setting a new configuration variable at the receiving end. * cc/receive-pack-limit: receive-pack: allow a maximum input size to be specified unpack-objects: add --max-input-size=<size> option index-pack: add --max-input-size=<size> option
2016-09-08Merge branch 'jk/format-patch-number-singleton-patch-with-cover'Libravatar Junio C Hamano2-4/+21
"git format-patch --cover-letter HEAD^" to format a single patch with a separate cover letter now numbers the output as [PATCH 0/1] and [PATCH 1/1] by default. * jk/format-patch-number-singleton-patch-with-cover: format-patch: show 0/1 and 1/1 for singleton patch with cover letter
2016-09-08Merge branch 'jk/delta-base-cache'Libravatar Junio C Hamano2-73/+111
The delta-base-cache mechanism has been a key to the performance in a repository with a tightly packed packfile, but it did not scale well even with a larger value of core.deltaBaseCacheLimit. * jk/delta-base-cache: t/perf: add basic perf tests for delta base cache delta_base_cache: use hashmap.h delta_base_cache: drop special treatment of blobs delta_base_cache: use list.h for LRU release_delta_base_cache: reuse existing detach function clear_delta_base_cache_entry: use a more descriptive name cache_or_unpack_entry: drop keep_cache parameter
2016-09-08Start maintenance track for 2.10.x seriesLibravatar Junio C Hamano303-18845/+35770
2016-09-08Prepare for 2.9.4Libravatar Junio C Hamano2-1/+84
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-08Merge branch 'hv/doc-commit-reference-style' into maintLibravatar Junio C Hamano1-0/+10
A small doc update. * hv/doc-commit-reference-style: SubmittingPatches: use gitk's "Copy commit summary" format SubmittingPatches: document how to reference previous commits