X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=merge_msg;h=0b7c63b5a0a33ad5bb59ff6251f49793d8da8974;hb=HEAD;hp=847698b34f30bc506e4329f12443318bb7fec458;hpb=186acf6b3b550aaa0ed4cd1640528265a2673309;p=next-scripts

diff --git a/merge_msg b/merge_msg
index 847698b..0b7c63b 100755
--- a/merge_msg
+++ b/merge_msg
@@ -8,28 +8,76 @@ fi
 
 gitk --merge -- "$@" &
 
+tools_dir=$(dirname "$0")
+
+hc=()
+mc=()
+cc=()
+cformat='%(trailers:only=no,valueonly,unfold,key=signed-off-by)%aN <%aE>%n%cN <%cE>'
+
+read -r -a head_commits -p 'HEAD commit(s): '
+for c in "${head_commits[@]}"; do
+	if ! git rev-parse --verify "$c" >/dev/null; then
+		printf 'Unknown commit %s\n' "$c"
+		exit 1
+	fi
+	hc+=( "$(git log -1 --format='%h ("%s")' "$c")" )
+	readarray -t -O "${#cc[@]}" cc < <(git log -1 --format="$cformat" "$c" | sort -u)
+done
+hcs=''
+if [ "${#hc[@]}" -gt 1 ]; then
+	hcs='s'
+fi
+
+read -r -a head_branches -p 'HEAD branch(es): '
+
+hb=( "${head_branches[@]/%/,}" )
+hb[-1]=${hb[-1]%,}
+if [ "${#hb[@]}" -gt 2 ]; then
+	hb[-2]=${hb[-2]/%,/ and}
+fi
+hbs=''
+if [ "${#hb[@]}" -gt 1 ]; then
+	hbs='s'
+fi
+
+printf -v subject 'manual merge of the BRANCH tree with the %s tree%s' \
+	"${hb[*]}" "$hbs"
+
+read -r -a merge_commits -p 'MERGE_HEAD commit(s): '
+for c in "${merge_commits[@]}"; do
+	if ! git rev-parse --verify "$c" >/dev/null; then
+		printf 'Unknown commit %s\n' "$c"
+		exit 1
+	fi
+	mc+=( "$(git log -1 --format='%h ("%s")' "$c")" )
+	readarray -t -O "${#cc[@]}" cc < <(git log -1 --format="$cformat" "$c" | sort -u)
+done
+mcs=''
+if [ "${#mc[@]}" -gt 1 ]; then
+	mcs='s'
+fi
+
 printf -v files '  %s\n' "$@"
 conf='a conflict'
 if [ "$#" -gt 1 ]; then
 	conf='conflicts'
 fi
 
-subject='manual merge of the BRANCH tree with the FIXME tree'
-
-"$(dirname "$0")/message_helper" "${branch[@]}" "$subject" <<EOF
+"$tools_dir/message_helper" "${branch[@]}" "$subject" "${cc[@]}" <<EOF
 FIXME: Add owner of second tree to To:
        Add author(s)/SOB of conflicting commits.
 
 Today's linux-next merge of the BRANCH tree got $conf in:
 
 $files
-between commit:
+between commit$hcs:
 
-   ("")
+$(printf '  %s\n' "${hc[@]}")
 
-from the FIXME tree and commit:
+from the ${hb[*]} tree$hbs and commit$mcs:
 
-   ("")
+$(printf '  %s\n' "${mc[@]}")
 
 from the BRANCH tree.