Revision 251df09be3af658404f5f5f670a013d5806645d4 authored by Matthieu Moy on 09 March 2011, 20:52:15 UTC, committed by Junio C Hamano on 09 March 2011, 22:28:24 UTC
The --max-count limit is implemented by counting revisions in
get_revision(), but the -S and -G take effect later when running diff.
Hence "--max-count=10 -Sfoo" meant "examine the 10 first revisions, and
out of them, show only those changing the occurences of foo", not "show 10
revisions changing the occurences of foo".

In case the commit isn't actually shown, cancel the decrement of
max_count.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent d0f7dcb
Raw File
git-merge-octopus.sh
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
# Resolve two or more trees.
#

LF='
'

die () {
    echo >&2 "$*"
    exit 1
}

# The first parameters up to -- are merge bases; the rest are heads.
bases= head= remotes= sep_seen=
for arg
do
	case ",$sep_seen,$head,$arg," in
	*,--,)
		sep_seen=yes
		;;
	,yes,,*)
		head=$arg
		;;
	,yes,*)
		remotes="$remotes$arg "
		;;
	*)
		bases="$bases$arg "
		;;
	esac
done

# Reject if this is not an Octopus -- resolve should be used instead.
case "$remotes" in
?*' '?*)
	;;
*)
	exit 2 ;;
esac

# MRC is the current "merge reference commit"
# MRT is the current "merge result tree"

MRC=$(git rev-parse --verify -q $head)
MRT=$(git write-tree)
NON_FF_MERGE=0
OCTOPUS_FAILURE=0
for SHA1 in $remotes
do
	case "$OCTOPUS_FAILURE" in
	1)
		# We allow only last one to have a hand-resolvable
		# conflicts.  Last round failed and we still had
		# a head to merge.
		echo "Automated merge did not work."
		echo "Should not be doing an Octopus."
		exit 2
	esac

	eval pretty_name=\${GITHEAD_$SHA1:-$SHA1}
	if test "$SHA1" = "$pretty_name"
	then
		SHA1_UP="$(echo "$SHA1" | tr a-z A-Z)"
		eval pretty_name=\${GITHEAD_$SHA1_UP:-$pretty_name}
	fi
	common=$(git merge-base --all $SHA1 $MRC) ||
		die "Unable to find common commit with $pretty_name"

	case "$LF$common$LF" in
	*"$LF$SHA1$LF"*)
		echo "Already up-to-date with $pretty_name"
		continue
		;;
	esac

	if test "$common,$NON_FF_MERGE" = "$MRC,0"
	then
		# The first head being merged was a fast-forward.
		# Advance MRC to the head being merged, and use that
		# tree as the intermediate result of the merge.
		# We still need to count this as part of the parent set.

		echo "Fast-forwarding to: $pretty_name"
		git read-tree -u -m $head $SHA1 || exit
		MRC=$SHA1 MRT=$(git write-tree)
		continue
	fi

	NON_FF_MERGE=1

	echo "Trying simple merge with $pretty_name"
	git read-tree -u -m --aggressive  $common $MRT $SHA1 || exit 2
	next=$(git write-tree 2>/dev/null)
	if test $? -ne 0
	then
		echo "Simple merge did not work, trying automatic merge."
		git-merge-index -o git-merge-one-file -a ||
		OCTOPUS_FAILURE=1
		next=$(git write-tree 2>/dev/null)
	fi

	MRC="$MRC $SHA1"
	MRT=$next
done

exit "$OCTOPUS_FAILURE"
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