-b
Show blank SHA-1 for boundary commits. This can also be
controlled via the blame.blankBoundary config option.
--root
Do not treat root commits as boundaries. This can also be
controlled via the blame.showRoot config option.
--show-stats
Include additional statistics at the end of blame output.
-L <start>,<end>, -L :<funcname>
Annotate only the line range given by <start>,<end>, or by
the function name regex <funcname>. May be specified multiple
times. Overlapping ranges are allowed.
<start> and <end> are optional. -L <start> or -L <start>,
spans from <start> to end of file. -L ,<end> spans from
start of file to <end>.
<start> and <end> can take one of these forms:
• number
If <start> or <end> is a number, it specifies an absolute
line number (lines count from 1).
• /regex/
This form will use the first line matching the given
POSIX regex. If <start> is a regex, it will search from
the end of the previous -L range, if any, otherwise from
the start of file. If <start> is ^/regex/, it will search
from the start of file. If <end> is a regex, it will
search starting at the line given by <start>.
• +offset or -offset
This is only valid for <end> and will specify a number of
lines before or after the line given by <start>.
If :<funcname> is given in place of <start> and <end>, it is
a regular expression that denotes the range from the first
funcname line that matches <funcname>, up to the next
funcname line. :<funcname> searches from the end of the
previous -L range, if any, otherwise from the start of file.
^:<funcname> searches from the start of file. The function
names are determined in the same way as git diff works out
patch hunk headers (see Defining a custom hunk-header in
gitattributes(5)).
-l
Show long rev (Default: off).
-t
Show raw timestamp (Default: off).
-S <revs-file>
Use revisions from revs-file instead of calling
git-rev-list(1).
--reverse <rev>..<rev>
Walk history forward instead of backward. Instead of showing
the revision in which a line appeared, this shows the last
revision in which a line has existed. This requires a range
of revision like START..END where the path to blame exists in
START. git blame --reverse START is taken as git blame
--reverse START..HEAD for convenience.
--first-parent
Follow only the first parent commit upon seeing a merge
commit. This option can be used to determine when a line was
introduced to a particular integration branch, rather than
when it was introduced to the history overall.
-p, --porcelain
Show in a format designed for machine consumption.
--line-porcelain
Show the porcelain format, but output commit information for
each line, not just the first time a commit is referenced.
Implies --porcelain.
--incremental
Show the result incrementally in a format designed for
machine consumption.
--encoding=<encoding>
Specifies the encoding used to output author names and commit
summaries. Setting it to none makes blame output unconverted
data. For more information see the discussion about encoding
in the git-log(1) manual page.
--contents <file>
When <rev> is not specified, the command annotates the
changes starting backwards from the working tree copy. This
flag makes the command pretend as if the working tree copy
has the contents of the named file (specify - to make the
command read from the standard input).
--date <format>
Specifies the format used to output dates. If --date is not
provided, the value of the blame.date config variable is
used. If the blame.date config variable is also not set, the
iso format is used. For supported values, see the discussion
of the --date option at git-log(1).
--[no-]progress
Progress status is reported on the standard error stream by
default when it is attached to a terminal. This flag enables
progress reporting even if not attached to a terminal. Can't
use --progress together with --porcelain or --incremental.
-M[<num>]
Detect moved or copied lines within a file. When a commit
moves or copies a block of lines (e.g. the original file has
A and then B, and the commit changes it to B and then A), the
traditional blame algorithm notices only half of the movement
and typically blames the lines that were moved up (i.e. B) to
the parent and assigns blame to the lines that were moved
down (i.e. A) to the child commit. With this option, both
groups of lines are blamed on the parent by running extra
passes of inspection.
<num> is optional but it is the lower bound on the number of
alphanumeric characters that Git must detect as
moving/copying within a file for it to associate those lines
with the parent commit. The default value is 20.
-C[<num>]
In addition to -M, detect lines moved or copied from other
files that were modified in the same commit. This is useful
when you reorganize your program and move code around across
files. When this option is given twice, the command
additionally looks for copies from other files in the commit
that creates the file. When this option is given three times,
the command additionally looks for copies from other files in
any commit.
<num> is optional but it is the lower bound on the number of
alphanumeric characters that Git must detect as
moving/copying between files for it to associate those lines
with the parent commit. And the default value is 40. If there
are more than one -C options given, the <num> argument of the
last -C will take effect.
--ignore-rev <rev>
Ignore changes made by the revision when assigning blame, as
if the change never happened. Lines that were changed or
added by an ignored commit will be blamed on the previous
commit that changed that line or nearby lines. This option
may be specified multiple times to ignore more than one
revision. If the blame.markIgnoredLines config option is set,
then lines that were changed by an ignored commit and
attributed to another commit will be marked with a ? in the
blame output. If the blame.markUnblamableLines config option
is set, then those lines touched by an ignored commit that we
could not attribute to another revision are marked with a *.
--ignore-revs-file <file>
Ignore revisions listed in file, which must be in the same
format as an fsck.skipList. This option may be repeated, and
these files will be processed after any files specified with
the blame.ignoreRevsFile config option. An empty file name,
"", will clear the list of revs from previously processed
files.
-h
Show help message.
-c
Use the same output mode as git-annotate(1) (Default: off).
--score-debug
Include debugging information related to the movement of
lines between files (see -C) and lines moved within a file
(see -M). The first number listed is the score. This is the
number of alphanumeric characters detected as having been
moved between or within files. This must be above a certain
threshold for git blame to consider those lines of code to
have been moved.
-f, --show-name
Show the filename in the original commit. By default the
filename is shown if there is any line that came from a file
with a different name, due to rename detection.
-n, --show-number
Show the line number in the original commit (Default: off).
-s
Suppress the author name and timestamp from the output.
-e, --show-email
Show the author email instead of author name (Default: off).
This can also be controlled via the blame.showEmail config
option.
-w
Ignore whitespace when comparing the parent's version and the
child's to find where the lines came from.
--abbrev=<n>
Instead of using the default 7+1 hexadecimal digits as the
abbreviated object name, use <m>+1 digits, where <m> is at
least <n> but ensures the commit object names are unique.
Note that 1 column is used for a caret to mark the boundary
commit.
