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98a96b00b8
This uses git-checkout-file to make sure that the full pathname is created, instead of the script having to verify it by hand. Also, simplify the 3-way merge case by just writing to the right file and setting the initial index contents early.
84 lines
1.8 KiB
Bash
Executable file
84 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) Linus Torvalds, 2005
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#
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# This is the git per-file merge script, called with
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#
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# $1 - original file SHA1 (or empty)
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# $2 - file in branch1 SHA1 (or empty)
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# $3 - file in branch2 SHA1 (or empty)
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# $4 - pathname in repository
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# $5 - orignal file mode (or empty)
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# $6 - file in branch1 mode (or empty)
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# $7 - file in branch2 mode (or empty)
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#
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# Handle some trivial cases.. The _really_ trivial cases have
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# been handled already by git-read-tree, but that one doesn't
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# do any merges that might change the tree layout.
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case "${1:-.}${2:-.}${3:-.}" in
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#
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# Deleted in both or deleted in one and unchanged in the other
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#
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"$1.." | "$1.$1" | "$1$1.")
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echo "Removing $4"
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rm -f -- "$4" &&
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exec git-update-cache --remove -- "$4"
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;;
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#
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# Added in one.
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#
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".$2." | "..$3" )
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echo "Adding $4"
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git-update-cache --add --cacheinfo "$6$7" "$2$3" "$4" &&
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exec git-checkout-cache -u -f -- "$4"
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;;
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#
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# Added in both (check for same permissions).
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#
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".$3$2")
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if [ "$6" != "$7" ]; then
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echo "ERROR: File $4 added identically in both branches,"
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echo "ERROR: but permissions conflict $6->$7."
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exit 1
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fi
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echo "Adding $4"
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git-update-cache --add --cacheinfo "$6" "$2" "$4" &&
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exec git-checkout-cache -u -f -- "$4"
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;;
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#
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# Modified in both, but differently.
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#
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"$1$2$3")
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echo "Auto-merging $4."
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orig=`git-unpack-file $1`
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src2=`git-unpack-file $3`
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# We reset the index to the first branch, making
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# git-diff-file useful
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git-update-cache --add --cacheinfo "$6" "$2" "$4"
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git-checkout-cache -u -f -- "$4" &&
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merge "$4" "$orig" "$src2"
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ret=$?
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rm -f -- "$orig" "$src2"
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if [ "$6" != "$7" ]; then
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echo "ERROR: Permissions conflict: $5->$6,$7."
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ret=1
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fi
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if [ $ret -ne 0 ]; then
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echo "ERROR: Merge conflict in $4."
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exit 1
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fi
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exec git-update-cache -- "$4"
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;;
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*)
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echo "ERROR: $4: Not handling case $1 -> $2 -> $3"
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;;
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esac
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exit 1
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