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https://github.com/git/git.git
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8389b52b2a
In a workflow that employs relatively long lived topic branches, the developer sometimes needs to resolve the same conflict over and over again until the topic branches are done (either merged to the "release" branch, or sent out and accepted upstream). This commit introduces a new command, "git rerere", to help this process by recording the conflicted automerge results and corresponding hand-resolve results on the initial manual merge, and later by noticing the same conflicted automerge and applying the previously recorded hand resolution using three-way merge. Signed-off-by: Junio C Hamano <junkio@cox.net>
104 lines
2.1 KiB
Bash
Executable File
104 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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USAGE='[--mixed | --soft | --hard] [<commit-ish>]'
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. git-sh-setup
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tmp=${GIT_DIR}/reset.$$
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trap 'rm -f $tmp-*' 0 1 2 3 15
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reset_type=--mixed
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case "$1" in
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--mixed | --soft | --hard)
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reset_type="$1"
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shift
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;;
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-*)
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usage ;;
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esac
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rev=$(git-rev-parse --verify --default HEAD "$@") || exit
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rev=$(git-rev-parse --verify $rev^0) || exit
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# We need to remember the set of paths that _could_ be left
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# behind before a hard reset, so that we can remove them.
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if test "$reset_type" = "--hard"
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then
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{
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git-ls-files --stage -z
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git-rev-parse --verify HEAD 2>/dev/null &&
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git-ls-tree -r -z HEAD
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} | perl -e '
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use strict;
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my %seen;
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$/ = "\0";
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while (<>) {
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chomp;
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my ($info, $path) = split(/\t/, $_);
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next if ($info =~ / tree /);
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if (!$seen{$path}) {
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$seen{$path} = 1;
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print "$path\0";
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}
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}
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' >$tmp-exists
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fi
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# Soft reset does not touch the index file nor the working tree
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# at all, but requires them in a good order. Other resets reset
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# the index file to the tree object we are switching to.
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if test "$reset_type" = "--soft"
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then
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if test -f "$GIT_DIR/MERGE_HEAD" ||
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test "" != "$(git-ls-files --unmerged)"
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then
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die "Cannot do a soft reset in the middle of a merge."
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fi
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else
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git-read-tree --reset "$rev" || exit
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fi
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# Any resets update HEAD to the head being switched to.
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if orig=$(git-rev-parse --verify HEAD 2>/dev/null)
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then
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echo "$orig" >"$GIT_DIR/ORIG_HEAD"
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else
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rm -f "$GIT_DIR/ORIG_HEAD"
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fi
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git-update-ref HEAD "$rev"
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case "$reset_type" in
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--hard )
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# Hard reset matches the working tree to that of the tree
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# being switched to.
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git-checkout-index -f -u -q -a
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git-ls-files --cached -z |
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perl -e '
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use strict;
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my (%keep, $fh);
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$/ = "\0";
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while (<STDIN>) {
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chomp;
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$keep{$_} = 1;
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}
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open $fh, "<", $ARGV[0]
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or die "cannot open $ARGV[0]";
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while (<$fh>) {
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chomp;
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if (! exists $keep{$_}) {
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# it is ok if this fails -- it may already
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# have been culled by checkout-index.
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unlink $_;
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}
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}
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' $tmp-exists
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;;
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--soft )
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;; # Nothing else to do
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--mixed )
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# Report what has not been updated.
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git-update-index --refresh
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;;
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esac
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rm -f "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/rr-cache/MERGE_RR"
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