1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-06-06 10:16:12 +02:00
git/git-diff.sh
Junio C Hamano 9f92f15f89 Make 'git diff --cached' synonymous to 'git diff --cached HEAD'.
When making changes to different files (i.e. dirty working tree) and
committing logically separate changes in groups, often it is necessary
to run 'git diff --cached HEAD' to make sure that the changes being
committed makes sense.  Saying 'git diff --cached' by mistake gives
rather uninformative error message from git-diff-files complaining it
does not understand --cached flag.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-23 00:53:02 -07:00

48 lines
940 B
Bash
Executable File

#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2005 Junio C Hamano
rev=$(git-rev-parse --revs-only --no-flags --sq "$@") || exit
flags=$(git-rev-parse --no-revs --flags --sq "$@")
files=$(git-rev-parse --no-revs --no-flags --sq "$@")
: ${flags:="'-M' '-p'"}
# I often say 'git diff --cached -p' and get scolded by git-diff-files, but
# obviously I mean 'git diff --cached -p HEAD' in that case.
case "$rev" in
'')
case " $flags " in
*" '--cached' "*)
rev='HEAD '
;;
esac
esac
case "$rev" in
?*' '?*' '?*)
echo >&2 "I don't understand"
exit 1
;;
?*' '^?*)
begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') &&
end=$(expr "$rev" : '.\([0-9a-f]*\). .*') || exit
cmd="git-diff-tree $flags $begin $end $files"
;;
?*' '?*)
cmd="git-diff-tree $flags $rev $files"
;;
?*' ')
cmd="git-diff-index $flags $rev $files"
;;
'')
cmd="git-diff-files $flags $files"
;;
*)
die "I don't understand $*"
;;
esac
eval "$cmd"