devtools/credit: script to highlight contributions for this commit.

And update MAKING-RELEASES.md to refer to it

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

devtools/credit

@@ -0,0 +1,50 @@
+#! /bin/sh
+
+VERBOSE=false
+
+if [ x"$1" = x"--verbose" ]; then
+    VERBOSE=true
+    shift
+fi
+
+if [ "$#" != 1 ]; then
+    echo "Usage: $0 <last-tag>" >&2
+    exit 1
+fi
+PREV_TAG="$1"
+
+git log "$PREV_TAG".. --format="%an|%ae" | sort | uniq -c | sort -rn > /tmp/authors.$$
+sed -n 's/.*[Nn]amed by //p' < CHANGELOG.md > /tmp/namers.$$
+git log "$PREV_TAG" --format="%an|%ae" | sort -u > /tmp/prev-authors.$$
+
+NAMER=""
+BACKUP_NAMER=""
+TOTAL=0
+while read LINE; do
+    COUNT=${LINE%% [^ 0123456789]*}
+    TOTAL=$(($TOTAL + $COUNT))
+    LINE=${LINE#*[1234567890] }
+    NAME=${LINE%%|*}
+    EMAIL=${LINE#*|}
+    NOTES=""
+    if [ $(grep -ci -- "$NAME\|$EMAIL" /tmp/prev-authors.$$) = 0 ]; then
+	NOTES="$NOTES""NEW COMMITTER "
+    fi
+    if ! grep -q -- "$NAME" /tmp/namers.$$; then
+	if [ -z "$NAMER" ]; then
+	    NAMER="$NAME"
+	    NOTES="$NOTES""*NEXT NAMER* "
+	elif [ -z "$BACKUP_NAMER" ]; then
+	    BACKUP_NAMER="$NAME"
+	    NOTES="$NOTES""*BACKUP NAMER* "
+	fi
+    fi
+    if [ -n "$NOTES" ] || $VERBOSE; then
+	echo "$COUNT $NAME $EMAIL $NOTES"
+    fi
+done < /tmp/authors.$$
+
+DAYS=$(( ( $(date +%s) - $(git log "$PREV_TAG" --format=%at | head -n1) ) / (3600*24) ))
+
+echo "$TOTAL commits in $DAYS days"
+rm /tmp/authors.$$ /tmp/namers.$$ /tmp/prev-authors.$$

doc/MAKING-RELEASES.md

@@ -9,7 +9,8 @@ Here's a checklist for the release process.
 2. Create a milestone for the *next* release, and go though issues and PR
    and mark accordingly.
 3. Ask the most significant contributor who has not already named a
-   release to name the release.  CC previous namers and team.
+   release to name the release (use devtools/credit).  CC previous namers
+   and team.
 
 ### Prepering for -rc1
 
@@ -25,7 +26,7 @@ Here's a checklist for the release process.
 1. Merge the PR above.
 2. Tag it `git pull && git tag -s v<VERSION>rc1 && git push --tags`
 3. Update the /topic on #c-lightning on Freenode.
-4. Prepare draft release notes, and share with team for editing.
+4. Prepare draft release notes (see devtools/credit), and share with team for editing.
 5. Upgrade your personal nodes to the rc1, to help testing.
 
 ### Tagging the Release