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2010-01-26Threaded grepLibravatar Fredrik Kuivinen1-0/+6
Make git grep use threads when it is available. The results below are best of five runs in the Linux repository (on a box with two cores). With the patch: git grep qwerty 1.58user 0.55system 0:01.16elapsed 183%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+800outputs (0major+5774minor)pagefaults 0swaps Without: git grep qwerty 1.59user 0.43system 0:02.02elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+800outputs (0major+3716minor)pagefaults 0swaps And with a pattern with quite a few matches: With the patch: $ /usr/bin/time git grep void 5.61user 0.56system 0:03.44elapsed 179%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+800outputs (0major+5587minor)pagefaults 0swaps Without: $ /usr/bin/time git grep void 5.36user 0.51system 0:05.87elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+800outputs (0major+3693minor)pagefaults 0swaps In either case we gain about 40% by the threading. Signed-off-by: Fredrik Kuivinen <frekui@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-13grep: rip out support for external grepLibravatar Junio C Hamano1-1/+0
We still allow people to pass --[no-]ext-grep on the command line, but the option is ignored. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-16grep: Allow case insensitive search of fixed-stringsLibravatar Brian Collins1-0/+2
"git grep" currently an error when you combine the -F and -i flags. This isn't in line with how GNU grep handles it. This patch allows the simultaneous use of those flags. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Brian Collins <bricollins@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-13Merge branch 'maint'Libravatar Junio C Hamano1-0/+1
* maint: GIT 1.6.4.3 svn: properly escape arguments for authors-prog http.c: remove verification of remote packs grep: accept relative paths outside current working directory grep: fix exit status if external_grep() punts Conflicts: GIT-VERSION-GEN RelNotes
2009-09-13Merge branch 'cb/maint-1.6.3-grep-relative-up' into maintLibravatar Junio C Hamano1-0/+1
* cb/maint-1.6.3-grep-relative-up: grep: accept relative paths outside current working directory grep: fix exit status if external_grep() punts Conflicts: t/t7002-grep.sh
2009-09-07grep: accept relative paths outside current working directoryLibravatar Clemens Buchacher1-0/+1
"git grep" would barf at relative paths pointing outside the current working directory (or subdirectories thereof). Use quote_path_relative(), which can handle such cases just fine. [jc: added tests.] Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22grep: Add --max-depth option.Libravatar Michał Kiedrowicz1-0/+1
It is useful to grep directories non-recursively, e.g. when one wants to look for all files in the toplevel directory, but not in any subdirectory, or in Documentation/, but not in Documentation/technical/. This patch adds support for --max-depth <depth> option to git-grep. If it is given, git-grep descends at most <depth> levels of directories below paths specified on the command line. Note that if path specified on command line contains wildcards, this option makes no sense, e.g. $ git grep -l --max-depth 0 GNU -- 'contrib/*' (note the quotes) will search all files in contrib/, even in subdirectories, because '*' matches all files. Documentation updates, bash-completion and simple test cases are also provided. Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-01grep -p: support user defined regular expressionsLibravatar René Scharfe1-0/+1
Respect the userdiff attributes and config settings when looking for lines with function definitions in git grep -p. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-01grep: add option -p/--show-functionLibravatar René Scharfe1-0/+1
The new option -p instructs git grep to print the previous function definition as a context line, similar to diff -p. Such context lines are marked with an equal sign instead of a dash. This option complements the existing context options -A, -B, -C. Function definitions are detected using the same heuristic that diff uses. User defined regular expressions are not supported, yet. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-01grep: print context hunk marks between filesLibravatar René Scharfe1-0/+1
Print a hunk mark before matches from a new file are shown, in addition to the current behaviour of printing them if lines have been skipped. The result is easier to read, as (presumably unrelated) matches from different files are separated by a hunk mark. GNU grep does the same. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-01grep: move context hunk mark handling into show_line()Libravatar René Scharfe1-0/+1
Move last_shown into struct grep_opt, to make it available in show_line(), and then make the function handle the printing of hunk marks for context lines in a central place. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-09grep: use parseoptLibravatar René Scharfe1-14/+14
Convert git-grep to parseopt. The bitfields in struct grep_opt are converted to full ints, increasing its size. This shouldn't be a problem as there is only a single instance in memory. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07grep: add support for coloring with external grepsLibravatar René Scharfe1-0/+1
Add the config variable color.grep.external, which can be used to switch on coloring of external greps. To enable auto coloring with GNU grep, one needs to set color.grep.external to --color=always to defeat the pager started by git grep. The value of the config variable will be passed to the external grep only if it would colorize internal grep's output, so automatic terminal detected works. The default is to not pass any option, because the external grep command could be a program without color support. Also set the environment variables GREP_COLOR and GREP_COLORS to pass the configured color for matches to the external grep. This works with GNU grep; other variables could be added as needed. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07grep: color patterns in outputLibravatar René Scharfe1-0/+3
Coloring matches makes them easier to spot in the output. Add two options and two parameters: color.grep (to turn coloring on or off), color.grep.match (to set the color of matches), --color and --no-color (to turn coloring on or off, respectively). The output of external greps is not changed. This patch is based on earlier ones by Nguyễn Thái Ngọc Duy and Thiago Alves. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07grep: remove grep_opt argument from match_expr_eval()Libravatar René Scharfe1-0/+1
The only use of the struct grep_opt argument of match_expr_eval() is to pass the option word_regexp to match_one_pattern(). By adding a pattern flag for it we can reduce the number of function arguments of these two functions, as a cleanup and preparation for adding more in the next patch. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-09grep: don't call regexec() for fixed stringsLibravatar René Scharfe1-0/+1
Add the new flag "fixed" to struct grep_pat and set it if the pattern is doesn't contain any regex control characters in addition to if the flag -F/--fixed-strings was specified. This gives a nice speed up on msysgit, where regexec() seems to be extra slow. Before (best of five runs): $ time git grep grep v1.6.1 >/dev/null real 0m0.552s user 0m0.000s sys 0m0.000s $ time git grep -F grep v1.6.1 >/dev/null real 0m0.170s user 0m0.000s sys 0m0.015s With the patch: $ time git grep grep v1.6.1 >/dev/null real 0m0.173s user 0m0.000s sys 0m0.000s The difference is much smaller on Linux, but still measurable. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-01git grep: Add "-z/--null" option as in GNU's grep.Libravatar Raphael Zimmerer1-0/+1
Here's a trivial patch that adds "-z" and "--null" options to "git grep". It was discussed on the mailing-list that git's "-z" convention should be used instead of GNU grep's "-Z". So things like 'git grep -l -z "$FOO" | xargs -0 sed -i "s/$FOO/$BOO/"' do work now. Signed-off-by: Raphael Zimmerer <killekulla@rdrz.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-04log --author/--committer: really match only with name partLibravatar Junio C Hamano1-0/+7
When we tried to find commits done by AUTHOR, the first implementation tried to pattern match a line with "^author .*AUTHOR", which later was enhanced to strip leading caret and look for "^author AUTHOR" when the search pattern was anchored at the left end (i.e. --author="^AUTHOR"). This had a few problems: * When looking for fixed strings (e.g. "git log -F --author=x --grep=y"), the regexp internally used "^author .*x" would never match anything; * To match at the end (e.g. "git log --author='google.com>$'"), the generated regexp has to also match the trailing timestamp part the commit header lines have. Also, in order to determine if the '$' at the end means "match at the end of the line" or just a literal dollar sign (probably backslash-quoted), we would need to parse the regexp ourselves. An earlier alternative tried to make sure that a line matches "^author " (to limit by field name) and the user supplied pattern at the same time. While it solved the -F problem by introducing a special override for matching the "^author ", it did not solve the trailing timestamp nor tail match problem. It also would have matched every commit if --author=author was asked for, not because the author's email part had this string, but because every commit header line that talks about the author begins with that field name, regardleses of who wrote it. Instead of piling more hacks on top of hacks, this rethinks the grep machinery that is used to look for strings in the commit header, and makes sure that (1) field name matches literally at the beginning of the line, followed by a SP, and (2) the user supplied pattern is matched against the remainder of the line, excluding the trailing timestamp data. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2006-09-27grep --all-matchLibravatar Junio C Hamano1-0/+2
This lets you say: git grep --all-match -e A -e B -e C to find lines that match A or B or C but limit the matches from the files that have all of A, B and C. This is different from git grep -e A --and -e B --and -e C in that the latter looks for a single line that has all of these at the same time. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-27grep: free expressions and patterns when done.Libravatar Junio C Hamano1-0/+1
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-20Update grep internal for grepping only in head/bodyLibravatar Junio C Hamano1-0/+7
This further updates the built-in grep engine so that we can say something like "this pattern should match only in head". This can be used to simplify grepping in the log messages. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-20builtin-grep: make pieces of it available as library.Libravatar Junio C Hamano1-0/+71
This makes three functions and associated option structures from builtin-grep available from other parts of the system. * options to drive built-in grep engine is stored in struct grep_opt; * pattern strings and extended grep expressions are added to struct grep_opt with append_grep_pattern(); * when finished calling append_grep_pattern(), call compile_grep_patterns() to prepare for execution; * call grep_buffer() to find matches in the in-core buffer. This also adds an internal option "status_only" to grep_opt, which suppresses any output from grep_buffer(). Callers of the function as library can use it to check if there is a match without producing any output. Signed-off-by: Junio C Hamano <junkio@cox.net>