Add a release script

This adds a release script based on the JS SDK one used elsewhere for Riot. It
disables pushing to NPM, since that's not relevant here.

Fixes https://github.com/vector-im/riot-web/issues/13176

.gitignore

@@ -9,3 +9,4 @@
 /.hak
 /.yarnrc
 /docker
+/.npmrc

release.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+#
+# Script to perform a release of riot-desktop.
+#
+# Requires githib-changelog-generator; to install, do 
+#   pip install git+https://github.com/matrix-org/github-changelog-generator.git
+
+set -e
+
+cd `dirname $0`
+
+for i in matrix-js-sdk
+do
+    echo "Checking version of $i..."
+    depver=`cat package.json | jq -r .devDependencies[\"$i\"]`
+    latestver=`yarn info -s $i dist-tags.next`
+    if [ "$depver" != "$latestver" ]
+    then
+        echo "The latest version of $i is $latestver but package.json depends on $depver."
+        echo -n "Type 'u' to auto-upgrade, 'c' to continue anyway, or 'a' to abort:"
+        read resp
+        if [ "$resp" != "u" ] && [ "$resp" != "c" ]
+        then
+            echo "Aborting."
+            exit 1
+        fi
+        if [ "$resp" == "u" ]
+        then
+            echo "Upgrading $i to $latestver..."
+            yarn add -ED $i@$latestver
+            git add -u
+            # The `-e` flag opens the editor and gives you a chance to check
+            # the upgrade for correctness.
+            git commit -m "Upgrade $i to $latestver" -e
+        fi
+    fi
+done
+
+./node_modules/matrix-js-sdk/release.sh -n -z "$@"
+
+release="${1#v}"
+prerelease=0
+# We check if this build is a prerelease by looking to
+# see if the version has a hyphen in it. Crude,
+# but semver doesn't support postreleases so anything
+# with a hyphen is a prerelease.
+echo $release | grep -q '-' && prerelease=1
+
+if [ $prerelease -eq 0 ]
+then
+    # For a release, reset SDK deps back to the `develop` branch.
+    for i in matrix-js-sdk
+    do
+        echo "Resetting $i to develop branch..."
+        yarn add -D github:matrix-org/$i#develop
+        git add -u
+        git commit -m "Reset $i back to develop branch"
+    done
+    git push origin develop
+fi

release_config.yaml

@@ -0,0 +1 @@
+signing_id: releases@riot.im