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112 lines
2.4 KiB
112 lines
2.4 KiB
#!/bin/sh |
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# |
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# Copyright (c) 2005 Junio C Hamano |
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# |
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# Resolve two or more trees. |
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# |
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. git-sh-setup |
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LF=' |
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' |
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# The first parameters up to -- are merge bases; the rest are heads. |
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bases= head= remotes= sep_seen= |
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for arg |
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do |
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case ",$sep_seen,$head,$arg," in |
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*,--,) |
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sep_seen=yes |
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;; |
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,yes,,*) |
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head=$arg |
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;; |
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,yes,*) |
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remotes="$remotes$arg " |
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;; |
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*) |
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bases="$bases$arg " |
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;; |
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esac |
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done |
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# Reject if this is not an octopus -- resolve should be used instead. |
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case "$remotes" in |
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?*' '?*) |
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;; |
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*) |
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exit 2 ;; |
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esac |
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# MRC is the current "merge reference commit" |
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# MRT is the current "merge result tree" |
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if ! git diff-index --quiet --cached HEAD -- |
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then |
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gettextln "Error: Your local changes to the following files would be overwritten by merge" |
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git diff-index --cached --name-only HEAD -- | sed -e 's/^/ /' |
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exit 2 |
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fi |
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MRC=$(git rev-parse --verify -q $head) |
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MRT=$(git write-tree) |
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NON_FF_MERGE=0 |
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OCTOPUS_FAILURE=0 |
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for SHA1 in $remotes |
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do |
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case "$OCTOPUS_FAILURE" in |
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1) |
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# We allow only last one to have a hand-resolvable |
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# conflicts. Last round failed and we still had |
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# a head to merge. |
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gettextln "Automated merge did not work." |
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gettextln "Should not be doing an octopus." |
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exit 2 |
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esac |
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eval pretty_name=\${GITHEAD_$SHA1:-$SHA1} |
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if test "$SHA1" = "$pretty_name" |
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then |
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SHA1_UP="$(echo "$SHA1" | tr a-z A-Z)" |
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eval pretty_name=\${GITHEAD_$SHA1_UP:-$pretty_name} |
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fi |
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common=$(git merge-base --all $SHA1 $MRC) || |
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die "$(eval_gettext "Unable to find common commit with \$pretty_name")" |
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case "$LF$common$LF" in |
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*"$LF$SHA1$LF"*) |
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eval_gettextln "Already up-to-date with \$pretty_name" |
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continue |
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;; |
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esac |
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if test "$common,$NON_FF_MERGE" = "$MRC,0" |
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then |
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# The first head being merged was a fast-forward. |
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# Advance MRC to the head being merged, and use that |
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# tree as the intermediate result of the merge. |
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# We still need to count this as part of the parent set. |
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eval_gettextln "Fast-forwarding to: \$pretty_name" |
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git read-tree -u -m $head $SHA1 || exit |
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MRC=$SHA1 MRT=$(git write-tree) |
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continue |
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fi |
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NON_FF_MERGE=1 |
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eval_gettextln "Trying simple merge with \$pretty_name" |
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git read-tree -u -m --aggressive $common $MRT $SHA1 || exit 2 |
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next=$(git write-tree 2>/dev/null) |
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if test $? -ne 0 |
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then |
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gettextln "Simple merge did not work, trying automatic merge." |
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git-merge-index -o git-merge-one-file -a || |
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OCTOPUS_FAILURE=1 |
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next=$(git write-tree 2>/dev/null) |
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fi |
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MRC="$MRC $SHA1" |
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MRT=$next |
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done |
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exit "$OCTOPUS_FAILURE"
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