Add a script to generate contributor list.

Signed-off-by: Daniel Nephin <dnephin@docker.com>

project/RELEASE-PROCESS.md

@@ -82,17 +82,20 @@ When prompted build the non-linux binaries and test them.
 
 5.  Attach the binaries and `script/run.sh`
 
-6. If everything looks good, it's time to push the release.
+6.  Add "Thanks" with a list of contributors. The contributor list can be generated
+    by running `./script/release/contributors`.
+
+7.  If everything looks good, it's time to push the release.
 
 
         ./script/release/push-release
 
 
-7.  Publish the release on GitHub.
+8.  Publish the release on GitHub.
 
-8.  Check that both binaries download (following the install instructions) and run.
+9.  Check that both binaries download (following the install instructions) and run.
 
-9.  Email maintainers@dockerproject.org and engineering@docker.com about the new release.
+10. Email maintainers@dockerproject.org and engineering@docker.com about the new release.
 
 ## If it’s a stable release (not an RC)
 

script/release/contributors

@@ -0,0 +1,27 @@
+#!/bin/bash
+set -e
+
+
+function usage() {
+    >&2 cat << EOM
+Print the list of github contributors for the release
+
+Usage:
+
+    $0 <previous release tag>
+EOM
+    exit 1
+}
+
+[[ -n "$1" ]] || usage
+PREV_RELEASE=$1
+VERSION=HEAD
+URL="https://api.github.com/repos/docker/compose/compare"
+
+curl -sf "$URL/$PREV_RELEASE...$VERSION" | \
+    jq -r '.commits[].author.login' | \
+    sort | \
+    uniq -c | \
+    sort -nr | \
+    awk '{print "@"$2","}' | \
+    xargs echo