b24642b2f2
New options --show-name, --show-number and --porcelain were not documented. Also add -p as a short-hand for --porcelain for consistency. Signed-off-by: Junio C Hamano <junkio@cox.net>
100 lines
3.0 KiB
Plaintext
100 lines
3.0 KiB
Plaintext
git-blame(1)
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============
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NAME
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----
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git-blame - Show what revision and author last modified each line of a file
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SYNOPSIS
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--------
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'git-blame' [-c] [-l] [-t] [-f] [-n] [-p] [-S <revs-file>] [--] <file> [<rev>]
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DESCRIPTION
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-----------
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Annotates each line in the given file with information from the revision which
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last modified the line. Optionally, start annotating from the given revision.
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This report doesn't tell you anything about lines which have been deleted or
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replaced; you need to use a tool such as gitlink:git-diff[1] or the "pickaxe"
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interface briefly mentioned in the following paragraph.
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Apart from supporting file annotation, git also supports searching the
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development history for when a code snippet occured in a change. This makes it
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possible to track when a code snippet was added to a file, moved or copied
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between files, and eventually deleted or replaced. It works by searching for
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a text string in the diff. A small example:
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-----------------------------------------------------------------------------
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$ git log --pretty=oneline -S'blame_usage'
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5040f17eba15504bad66b14a645bddd9b015ebb7 blame -S <ancestry-file>
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ea4c7f9bf69e781dd0cd88d2bccb2bf5cc15c9a7 git-blame: Make the output
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-----------------------------------------------------------------------------
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OPTIONS
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-------
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-c, --compatibility::
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Use the same output mode as gitlink:git-annotate[1] (Default: off).
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-l, --long::
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Show long rev (Default: off).
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-t, --time::
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Show raw timestamp (Default: off).
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-S, --rev-file <revs-file>::
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Use revs from revs-file instead of calling gitlink:git-rev-list[1].
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-f, --show-name::
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Show filename in the original commit. By default
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filename is shown if there is any line that came from a
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file with different name, due to rename detection.
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-n, --show-number::
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Show line number in the original commit (Default: off).
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-p, --porcelain::
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Show in a format designed for machine consumption.
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-h, --help::
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Show help message.
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THE PORCELAIN FORMAT
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--------------------
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In this format, each line is output after a header; the
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header at the minumum has the first line which has:
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- 40-byte SHA-1 of the commit the line is attributed to;
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- the line number of the line in the original file;
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- the line number of the line in the final file;
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- on a line that starts a group of line from a different
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commit than the previous one, the number of lines in this
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group. On subsequent lines this field is absent.
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This header line is followed by the following information
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at least once for each commit:
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- author name ("author"), email ("author-mail"), time
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("author-time"), and timezone ("author-tz"); similarly
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for committer.
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- filename in the commit the line is attributed to.
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- the first line of the commit log message ("summary").
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The contents of the actual line is output after the above
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header, prefixed by a TAB. This is to allow adding more
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header elements later.
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SEE ALSO
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--------
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gitlink:git-annotate[1]
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AUTHOR
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------
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Written by Fredrik Kuivinen <freku045@student.liu.se>.
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GIT
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---
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Part of the gitlink:git[7] suite
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