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.

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
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.

--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.

-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 <twaugh@redhat.com>
Package maintainer

patchutils 10 Feb 2011 GREPDIFF(1)