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Commit | Line | Data |
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839a7a06 LT |
1 | #!/bin/sh |
2 | # | |
ec73962d PB |
3 | # Copyright (c) Linus Torvalds, 2005 |
4 | # | |
5 | # This is the git per-file merge script, called with | |
839a7a06 | 6 | # |
e3b4be7f LT |
7 | # $1 - original file SHA1 (or empty) |
8 | # $2 - file in branch1 SHA1 (or empty) | |
9 | # $3 - file in branch2 SHA1 (or empty) | |
839a7a06 | 10 | # $4 - pathname in repository |
ee28152d JH |
11 | # $5 - orignal file mode (or empty) |
12 | # $6 - file in branch1 mode (or empty) | |
13 | # $7 - file in branch2 mode (or empty) | |
839a7a06 | 14 | # |
e3b4be7f | 15 | # Handle some trivial cases.. The _really_ trivial cases have |
0fc65a45 | 16 | # been handled already by git-read-tree, but that one doesn't |
ec73962d | 17 | # do any merges that might change the tree layout. |
0a9ea850 | 18 | |
e3b4be7f | 19 | case "${1:-.}${2:-.}${3:-.}" in |
839a7a06 | 20 | # |
98a96b00 | 21 | # Deleted in both or deleted in one and unchanged in the other |
839a7a06 | 22 | # |
98a96b00 | 23 | "$1.." | "$1.$1" | "$1$1.") |
e2b6a9d0 | 24 | echo "Removing $4" |
0b124bb4 | 25 | if test -f "$4"; then |
aacc15ec JH |
26 | rm -f -- "$4" |
27 | fi && | |
0b124bb4 | 28 | exec git-update-cache --remove -- "$4" |
ec73962d PB |
29 | ;; |
30 | ||
839a7a06 | 31 | # |
ee28152d | 32 | # Added in one. |
839a7a06 | 33 | # |
e2b6a9d0 | 34 | ".$2." | "..$3" ) |
98a96b00 LT |
35 | echo "Adding $4" |
36 | git-update-cache --add --cacheinfo "$6$7" "$2$3" "$4" && | |
37 | exec git-checkout-cache -u -f -- "$4" | |
ec73962d PB |
38 | ;; |
39 | ||
e2b6a9d0 | 40 | # |
ee28152d | 41 | # Added in both (check for same permissions). |
e2b6a9d0 | 42 | # |
ee28152d | 43 | ".$3$2") |
e2b6a9d0 | 44 | if [ "$6" != "$7" ]; then |
ee28152d JH |
45 | echo "ERROR: File $4 added identically in both branches," |
46 | echo "ERROR: but permissions conflict $6->$7." | |
e2b6a9d0 JB |
47 | exit 1 |
48 | fi | |
98a96b00 LT |
49 | echo "Adding $4" |
50 | git-update-cache --add --cacheinfo "$6" "$2" "$4" && | |
51 | exec git-checkout-cache -u -f -- "$4" | |
ec73962d PB |
52 | ;; |
53 | ||
e3b4be7f | 54 | # |
ee28152d | 55 | # Modified in both, but differently. |
e3b4be7f LT |
56 | # |
57 | "$1$2$3") | |
ee28152d | 58 | echo "Auto-merging $4." |
c7d1d4e1 | 59 | orig=`git-unpack-file $1` |
c7d1d4e1 | 60 | src2=`git-unpack-file $3` |
ec73962d | 61 | |
98a96b00 LT |
62 | # We reset the index to the first branch, making |
63 | # git-diff-file useful | |
0b124bb4 | 64 | git-update-cache --add --cacheinfo "$6" "$2" "$4" |
98a96b00 LT |
65 | git-checkout-cache -u -f -- "$4" && |
66 | merge "$4" "$orig" "$src2" | |
e2b6a9d0 | 67 | ret=$? |
98a96b00 | 68 | rm -f -- "$orig" "$src2" |
8544a6f1 | 69 | |
e2b6a9d0 | 70 | if [ "$6" != "$7" ]; then |
ec73962d | 71 | echo "ERROR: Permissions conflict: $5->$6,$7." |
2a68a865 | 72 | ret=1 |
e2b6a9d0 | 73 | fi |
8544a6f1 | 74 | |
e2b6a9d0 | 75 | if [ $ret -ne 0 ]; then |
2a68a865 | 76 | echo "ERROR: Merge conflict in $4." |
0a9ea850 JB |
77 | exit 1 |
78 | fi | |
98a96b00 | 79 | exec git-update-cache -- "$4" |
ec73962d PB |
80 | ;; |
81 | ||
e3b4be7f | 82 | *) |
ec73962d PB |
83 | echo "ERROR: $4: Not handling case $1 -> $2 -> $3" |
84 | ;; | |
e3b4be7f LT |
85 | esac |
86 | exit 1 |