wip theory

[topbloke.git] / topbloke-merge-driver

diff --git a/topbloke-merge-driver b/topbloke-merge-driver
index c90680e742742d441f40197967639bdc591e6913..a3d199920bac4a2e952859b9562886aac5a94338 100755 (executable)
--- a/topbloke-merge-driver
+++ b/topbloke-merge-driver
@@ -4,32 +4,42 @@ set -e
 fail () { echo >&2 "$0: $*"; exit 127; }
 
 case "$1" in
 fail () { echo >&2 "$0: $*"; exit 127; }
 
 case "$1" in

---v1) on=tip ;;
---base-v1) on=base ;;
+--v1) how=same ;;              # merge into tip from another tip of this patch
+                               #  or into base from another base of this patch
+--v1-base) how=base ;;         # merge into tip from a base of this patch
+--v1-dep) how=dep ;;           # merge into base from a dep's tip

 *) fail "bad usage" ;;
 esac
 
 whichfile=$1
 ancestor=$2
 *) fail "bad usage" ;;
 esac
 
 whichfile=$1
 ancestor=$2

-current=$3
-other=$4
+ours=$3
+theirs=$4

 markersize=$5
 
 markersize=$5
 

+set -- "$ours" "$ancestor" "$theirs"
+

 case $on.$whichfile in
 case $on.$whichfile in

-tip.msg)
-       exec git-merge-file --marker-size=$markersize \
-               "$current" "$ancestor" "$other"
+dep.msg|dep.deps|dep.props)
+       touch "$ours"
+       ;;
+base.msg)
+       echo '# not applicable' >"$ours"
+base.deps)
+       echo >"$ours"
+       touch >"$ours"
+       ;;
+base.props)
+       exec topbloke-merge-lists -M$markersize -P -UDeleted "$@"

        ;;
        ;;

-base.msg|base.deps)
-       echo '# not applicable' >"$current"
-       exit 0
+same.msg)
+       exec git-merge-file --marker-size=$markersize "$@"

        ;;
        ;;

-*.included|tip.deps|tip.flags)
-       exec topbloke-merge-lists "$current" "$ancestor" "$other"
+same.deps|*.included)
+       exec topbloke-merge-lists -M$markersize "$@"

        ;;
        ;;

-base.flags)
-       exec topbloke-merge-lists -UDeleted \
-               "$current" "$ancestor" "$other"
+same.props|*.pprops)
+       exec topbloke-merge-lists -M$markersize -P "$@"

        ;;
 *)
        fail "huh $on $whichfile ?"
        ;;
 *)
        fail "huh $on $whichfile ?"