kernel/git - git - PowerEL Git System

Tree: c09cd77ea2

Author	SHA1	Message	Date
Johan Herland	1c57a627bf	New --dirstat=lines mode, doing dirstat analysis based on diffstat This patch adds an alternative implementation of show_dirstat(), called show_dirstat_by_line(), which uses the more expensive diffstat analysis (as opposed to show_dirstat()'s own (relatively inexpensive) analysis) to derive the numbers from which the --dirstat output is computed. The alternative implementation is controlled by the new "lines" parameter to the --dirstat option (or the diff.dirstat config variable). For binary files, the diffstat analysis counts bytes instead of lines, so to prevent binary files from dominating the dirstat results, the byte counts for binary files are divided by 64 before being compared to their textual/line-based counterparts. This is a stupid and ugly - but very cheap - heuristic. In linux-2.6.git, running the three different --dirstat modes: time git diff v2.6.20..v2.6.30 --dirstat=changes > /dev/null vs. time git diff v2.6.20..v2.6.30 --dirstat=lines > /dev/null vs. time git diff v2.6.20..v2.6.30 --dirstat=files > /dev/null yields the following average runtimes on my machine: - "changes" (default): ~6.0 s - "lines": ~9.6 s - "files": ~0.1 s So, as expected, there's a considerable performance hit (~60%) by going through the full diffstat analysis as compared to the default "changes" analysis (obviously, "files" is much faster than both). As such, the "lines" mode is probably only useful if you really need the --dirstat numbers to be consistent with the numbers returned from the other --*stat options. The patch also includes documentation and tests for the new dirstat mode. Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	14 years ago
Johan Herland	2d17495196	Add config variable for specifying default --dirstat behavior The new diff.dirstat config variable takes the same arguments as '--dirstat=<args>', and specifies the default arguments for --dirstat. The config is obviously overridden by --dirstat arguments passed on the command line. When not specified, the --dirstat defaults are 'changes,noncumulative,3'. The patch also adds several tests verifying the interaction between the diff.dirstat config variable, and the --dirstat command line option. Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	14 years ago
Ramkumar Ramachandra	48672b3dc7	Documentation: Allow custom diff tools to be specified in 'diff.tool' Apart from the list of "valid values", 'diff.tool' can take any value, provided there is a corresponding 'difftool.<tool>.cmd' option. Also, describe this option just before the 'difftool.*' options. Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	14 years ago
Ramkumar Ramachandra	90b94c26f7	Documentation: Add diff.<driver>.* to config Although the gitattributes page contains comprehensive information about these configuration options, they should be included in the config documentation for completeness. It may be better to rename the "driver" in "diff.<driver>.*" to something like "content type" or "file type", but for now, let's keep it consistent across this part of the documentation and the original description in the gitattributes documentation. Helped-by: Jakub Narebski <jnareb@gmail.com> Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	14 years ago
Ramkumar Ramachandra	19299a84f7	Documentation: Move diff.<driver>.* from config.txt to diff-config.txt Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	14 years ago