first draft of a script for automating a lot of the release process

Author: [email protected]

cut-release.sh

@@ -0,0 +1,171 @@
+#!/bin/bash
+
+function help_and_exit() {
+    echo "Usage: $0 [-go] [-verbose]"
+    echo
+    echo "Moves minified CSS and JS to distribution directories and"
+    echo "creates a branch in SVN."
+    echo
+    echo "  -go:      Run commands instead of just echoing them."
+    echo "  -verbose: More verbose logging."
+    exit "$1"
+}
+
+# 1 for verbose logging
+export VERBOSE="0"
+# 1 if commands that have side-effects should actually be run instead of logged
+export EFFECT="0"
+
+function panic() {
+    echo "$*"
+    exit -1
+}
+
+function command() {
+    if (( $VERBOSE )) || ! (( $EFFECT )); then
+	echo '$' "$*"
+    fi
+    if (( $EFFECT )); then
+	"$@" || panic "command failed: $@"
+    fi
+}
+
+function mime_for_file() {
+    local path="$1"
+    case "${path##*.}" in
+	js)   echo -n "text/javascript;charset=UTF-8";;
+	css)  echo -n "text/css;charset=UTF-8";;
+	html) echo -n "text/html;charset=UTF-8";;
+	*)    panic "unrecognized extension for $path";;
+    esac
+}
+
+for var in "$@"; do
+  case "$var" in
+      -verbose)
+	  VERBOSE="1"
+	  ;;
+      -go)
+	  EFFECT="1"
+	  ;;
+      -h)
+	  help_and_exit 0
+	  ;;
+      *)
+	  echo "Unrecognized variable $var"
+	  help_and_exit -1
+	  ;;
+  esac
+done
+
+# Find svn root
+export VERSION_BASE="$(
+  pushd "$(dirname "$0")/.." > /dev/null; pwd; popd > /dev/null)"
+
+if [ -z "$VERSION_BASE" ] || ! [ -d "$VERSION_BASE" ]; then
+    panic "unknown VERSION_BASE"
+fi
+if ! [ -d "$VERSION_BASE/trunk" ]; then
+    panic "missing trunk in $VERSION_BASE"
+fi
+if ! [ -d "$VERSION_BASE/loader" ]; then
+    panic "missing loader in $VERSION_BASE"
+fi
+if ! [ -d "$VERSION_BASE/branches" ]; then
+    panic "missing branches in $VERSION_BASE"
+fi
+
+if (( $VERBOSE )); then
+    echo "VERSION_BASE=$VERSION_BASE"
+fi
+
+# Choose a release label
+export RELEASE_LABEL="$(date -u +release-%e-%b-%Y)"
+
+if (( $VERBOSE )); then
+    echo "RELEASE_LABEL=$RELEASE_LABEL"
+fi
+
+if [ -e "$VERSION_BASE/branches/$RELEASE_LABEL" ]; then
+    panic "duplicate release $VERSION_BASE/branches/$RELEASE_LABEL"
+fi
+
+
+# Make the distribution
+function build() {
+  pushd "$VERSION_BASE/trunk" > /dev/null
+  make distrib
+  local status=$?
+  popd > /dev/null
+  (($status))
+}
+if build; then
+  panic "Make failed"
+fi
+
+if [-n "$(svn stat "$VERSION_BASE/trunk")"; then
+  svn stat "$VERSION_BASE/trunk"
+  panic "Uncommitted changes"
+fi
+
+function sync() {
+    local action="$1"
+    local src_dir="$2"
+    local dest_dir="$3"
+    shift 3
+    local exts=$@
+    local ext
+    local src_file
+    local dest_file
+    for ext in $exts; do
+	for src_file in "$src_dir"/*."$ext"; do
+	    dest_file="$dest_dir"/"$(basename "$src_file")"
+	    if ! [ -e "$dest_file" ] || diff -q "$src_file" "$dest_file"; then
+		"$action" "$src_file" "$dest_file"
+	    fi
+	done
+	for dest_file in "$dest_dir"/*."$ext"; do
+	    src_file="$src_dir"/"$(basename "$dest_file")"
+	    if ! [ -e "$src_file" ]; then
+		"$action" "$src_file" "$dest_file"
+	    fi
+	done
+    done
+}
+
+function svn_sync() {
+    local src_file="$1"
+    local dest_file="$2"
+    if ! [ -e "$src_file" ]; then
+	command svn delete "$dest_file"
+    else
+	command cp "$src_file" "$dest_file"
+	if ! [ -e "$dest_file" ]; then
+	    command svn add "$dest_file"
+	    command svn propset svn:mime-type "$(mime_for_file "$src_file")" \
+		"$dest_file"
+	fi
+    fi
+}
+
+# Deploy the current compiled source to /loader
+sync svn_sync "$VERSION_BASE/trunk/src" "$VERSION_BASE/loader" js css
+sync svn_sync "$VERSION_BASE/trunk/styles" "$VERSION_BASE/loader/skins" css
+
+# Cut branch
+command svn copy "$VERSION_BASE/trunk" "$VERSION_BASE/branches/$RELEASE_LABEL"
+
+# Dump final instructions for caller.
+echo
+if (( $EFFECT )); then
+    echo "Finally run"
+    echo "    $ svn commit -m 'Release $VERSION_BASE'"
+    echo "to commit the new release then upload"
+    echo "    $VERSION_BASE/trunk/distrib/prettify-small.*"
+    echo "to"
+    echo "    http://code.google.com/p/google-code-prettify/downloads/list"
+else
+   echo "Rerun with -go flag to actually execute these commands."
+fi
+
+exit 0