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Commit | Line | Data |
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940c1bb0 | 1 | #!/bin/sh |
0a5a9ea4 JH |
2 | # |
3 | # Copyright (c) 2005 Linus Torvalds | |
4 | # Copyright (c) 2005 Junio C Hamano | |
5 | ||
6 | rev=$(git-rev-parse --revs-only --no-flags --sq "$@") || exit | |
7 | flags=$(git-rev-parse --no-revs --flags --sq "$@") | |
8 | files=$(git-rev-parse --no-revs --no-flags --sq "$@") | |
9 | ||
d165fa14 JH |
10 | die () { |
11 | echo >&2 "$*" | |
12 | exit 1 | |
13 | } | |
14 | ||
9f92f15f JH |
15 | # I often say 'git diff --cached -p' and get scolded by git-diff-files, but |
16 | # obviously I mean 'git diff --cached -p HEAD' in that case. | |
17 | case "$rev" in | |
18 | '') | |
19 | case " $flags " in | |
20 | *" '--cached' "*) | |
21 | rev='HEAD ' | |
22 | ;; | |
23 | esac | |
24 | esac | |
25 | ||
56205180 JH |
26 | # If we do not have --name-status, --name-only nor -r, default to -p. |
27 | # If we do not have -B nor -C, default to -M. | |
28 | case " $flags " in | |
29 | *" '--name-status' "* | *" '--name-only' "* | *" '-r' "* ) | |
30 | ;; | |
31 | *) | |
32 | flags="$flags'-p' " ;; | |
33 | esac | |
34 | case " $flags " in | |
35 | *" '-"[BCM]* | *" '--find-copies-harder' "*) | |
36 | ;; # something like -M50. | |
37 | *) | |
38 | flags="$flags'-M' " ;; | |
39 | esac | |
40 | ||
0a5a9ea4 JH |
41 | case "$rev" in |
42 | ?*' '?*' '?*) | |
9f92f15f JH |
43 | echo >&2 "I don't understand" |
44 | exit 1 | |
0a5a9ea4 JH |
45 | ;; |
46 | ?*' '^?*) | |
47 | begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') && | |
48 | end=$(expr "$rev" : '.\([0-9a-f]*\). .*') || exit | |
ea51d416 | 49 | cmd="git-diff-tree $flags $begin $end -- $files" |
0a5a9ea4 JH |
50 | ;; |
51 | ?*' '?*) | |
ea51d416 | 52 | cmd="git-diff-tree $flags $rev -- $files" |
0a5a9ea4 JH |
53 | ;; |
54 | ?*' ') | |
ea51d416 | 55 | cmd="git-diff-index $flags $rev -- $files" |
0a5a9ea4 JH |
56 | ;; |
57 | '') | |
ea51d416 | 58 | cmd="git-diff-files $flags -- $files" |
0a5a9ea4 | 59 | ;; |
940c1bb0 | 60 | *) |
0a5a9ea4 JH |
61 | die "I don't understand $*" |
62 | ;; | |
940c1bb0 | 63 | esac |
0a5a9ea4 JH |
64 | |
65 | eval "$cmd" |