3 # Copyright (c) Linus Torvalds, 2005
5 # This is the git per-file merge script, called with
7 # $1 - original file SHA1 (or empty)
8 # $2 - file in branch1 SHA1 (or empty)
9 # $3 - file in branch2 SHA1 (or empty)
10 # $4 - pathname in repository
11 # $5 - orignal file mode (or empty)
12 # $6 - file in branch1 mode (or empty)
13 # $7 - file in branch2 mode (or empty)
15 # Handle some trivial cases.. The _really_ trivial cases have
16 # been handled already by git-read-tree, but that one doesn't
17 # do any merges that might change the tree layout.
21 dir=`dirname "$file"` &&
27 case "${1:-.}${2:-.}${3:-.}" in
32 echo "WARNING: $4 is removed in both branches."
33 echo "WARNING: This is a potential rename conflict."
35 exec git-update-cache --remove -- "$4"
39 # Deleted in one and unchanged in the other.
44 exec git-update-cache --remove -- "$4"
51 case "$6$7" in *7??) mode=+x;; *) mode=-x;; esac
52 echo "Adding $4 with perm $mode."
54 git-cat-file blob "$2$3" >"$4" &&
55 chmod $mode -- "$4" &&
56 exec git-update-cache --add -- "$4"
60 # Added in both (check for same permissions).
63 if [ "$6" != "$7" ]; then
64 echo "ERROR: File $4 added identically in both branches,"
65 echo "ERROR: but permissions conflict $6->$7."
68 case "$6" in *7??) mode=+x;; *) mode=-x;; esac
69 echo "Adding $4 with perm $mode"
71 git-cat-file blob "$2" >"$4" &&
72 chmod $mode -- "$4" &&
73 exec git-update-cache --add -- "$4"
77 # Modified in both, but differently.
80 echo "Auto-merging $4."
81 orig=`git-unpack-file $1`
82 src1=`git-unpack-file $2`
83 src2=`git-unpack-file $3`
86 merge -p "$src1" "$orig" "$src2" > "$4"
88 rm -f -- "$orig" "$src1" "$src2"
90 if [ "$6" != "$7" ]; then
91 echo "ERROR: Permissions conflict: $5->$6,$7."
94 case "$6" in *7??) mode=+x;; *) mode=-x;; esac
97 if [ $ret -ne 0 ]; then
98 # Reset the index to the first branch, making
99 # git-diff-file useful
100 git-update-cache --add --cacheinfo "$6" "$2" "$4"
101 echo "ERROR: Merge conflict in $4."
104 exec git-update-cache --add -- "$4"
108 echo "ERROR: $4: Not handling case $1 -> $2 -> $3"