Manual: grepdiff
GREPDIFF(1) Man pages GREPDIFF(1)
NAME
grepdiff - show files modified by a diff containing a regex
SYNOPSIS
grepdiff [[-n] | [--line-number]] [[-N] | [--number-files]] [[-p n] | [--strip-match=n]] [--strip=n]
[--addprefix=PREFIX] [--addoldprefix=PREFIX] [--addnewprefix=PREFIX] [[-s] | [--status]] [[-i PATTERN] |
[--include=PATTERN]] [[-I FILE] | [--include-from-file=FILE]] [[-x PATTERN] | [--exclude=PATTERN]]
[[-X FILE] | [--exclude-from-file=FILE]] [[-# RANGE] | [--hunks=RANGE]] [--lines=RANGE] [[-FRANGE] |
[--files=RANGE]] [--annotate] [--as-numbered-lines=WHEN] [--format=FORMAT] [--remove-timestamps] [[-v] |
[--verbose]] [[-z] | [--decompress]] [[-E] | [--extended-regexp]] [[-H] | [--with-filename]] [[-h] |
[--no-filename]] [--output-matching=WHAT] [--only-match=WHAT] {[REGEX] | [-f FILE]} [file...]
grepdiff {[--help] | [--version] | [--list] | [--filter ...]}
DESCRIPTION
For each file modified by a patch, if the patch hunk contains the REGEX then the file's name is printed.
The regular expression is treated as POSIX Basic Regular Expression syntax, unless the -E option is given in which
case POSIX Extended Regular Expression syntax is used. When compiled with PCRE2 support, PCRE regular expressions are
used instead of POSIX regular expressions, and the -E option has no effect since PCRE already supports extended
regular expression features by default.
For example, to see the patches in my.patch which contain the regular expression “pf_gfp_mask”, use:
grepdiff pf_gfp_mask my.patch | \
xargs -rn1 filterdiff my.patch -i
You can use both unified and context format diffs with this program.
OPTIONS
-n, --line-number
Display the line number that each patch begins at. If verbose output is requested, each matching hunk is listed
as well.
For a description of the output format see lsdiff(1).
-N, --number-files
File numbers are listed, beginning at 1, before each filename.
-p n, --strip-match=n
When matching, ignore the first n components of the pathname.
--strip=n
Remove the first n components of the pathname before displaying it.
--addprefix=PREFIX
Prefix the pathname with PREFIX before displaying it. This will override any individual settings specified with
the --addoldprefix or --addnewprefix options.
--addoldprefix=PREFIX
Prefix pathnames for old or original files in the output by PREFIX.
--addnewprefix=PREFIX
Prefix pathnames for updated or new files in the output by PREFIX.
-s
Show file additions, modifications and removals. A file addition is indicated by a “+”, a removal by a “-”, and a
modification by a “!”.
-i PATTERN, --include=PATTERN
Include only files matching PATTERN.
-I FILE, --include-from-file=FILE
Include only files matching any pattern listed in FILE, one pattern per line. All other lines in the input are
suppressed.
-x PATTERN --exclude=PATTERN
Exclude files matching PATTERN.
-X FILE, --exclude-from-file=FILE
Exclude files matching any pattern listed in FILE, one pattern per line. All other lines in the input are
displayed.
-# RANGE, --hunks=RANGE
Only include hunks within the specified RANGE. Hunks are numbered from 1, and the range is a comma-separated list
of numbers or “first-last” spans, optionally preceded by a modifier 'x' which inverts the entire range; either
the first or the last in the span may be omitted to indicate no limit in that direction.
--lines=RANGE
Only list hunks that contain lines from the original file that lie within the specified RANGE. Lines are numbered
from 1, and the range is a comma-separated list of numbers or “first-last” spans, optionally preceded by a
modifier 'x' which inverts the entire range; either the first or the last in the span may be omitted to indicate
no limit in that direction.
-F=RANGE, --files=RANGE
Only list files indicated by the specified RANGE. Files are numbered from 1 in the order they appear in the patch
input, and the range is a comma-separated list of numbers or “first-last” spans, optionally preceded by a
modifier 'x' which inverts the entire range; either the first or the last in the span may be omitted to indicate
no limit in that direction.
--annotate
Annotate each hunk with the filename and hunk number.
--as-numbered-lines=before|after|original-before|original-after
Instead of a patch fragment, display the lines of the selected hunks with the line number of the file before (or
after) the patch is applied, followed by a TAB character and a colon, at the beginning of each line. Each hunk
except the first will have a line consisting of “...” before it.
The before and after options show line numbers adjusted for any skipped hunks. The original-before and
original-after options show line numbers as they appear in the original diff, preserving the original line number
context. This is useful for CI/CD systems that need to report errors on the exact line numbers from the original
diff.
--format=unified|context
Use specified output format.
--remove-timestamps
Do not include file timestamps in the output.
-z, --decompress
Decompress files with extensions .gz and .bz2.
-E, --extended-regexp
Use POSIX Extended Regular Expression syntax. Note: when compiled with PCRE2 support, this option has no effect
as PCRE regular expressions are used by default and already support extended regular expression features.
-H, --with-filename
Print the name of the patch file containing each match.
-h, --no-filename
Suppress the name of the patch file containing each match.
-f FILE, --file=FILE
Read regular expressions from FILE, one per line.
--output-matching=hunk|file
Display the matching hunk-level or file-level diffs.
--only-match=rem|removals|add|additions|mod|modifications|all
Limit regex matching to removals, additions, modifications or the whole hunk.
--help
Display a short usage message.
--version
Display the version number of grepdiff.
--filter
Behave like filterdiff(1) instead.
--list
Behave like lsdiff(1) instead.
SEE ALSO
filterdiff(1), lsdiff(1), patchview(1)
AUTHOR
Tim Waugh
Package maintainer
patchutils 10 Feb 2011 GREPDIFF(1)