Merge pull request #114 from ShaneMcC/master

Add script to easily checkout all the repos to a given point

checkoutAt.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+# Script to checkout the client at a given point of time.
+# Usage:
+#
+# checkoutAt.sh <meta|client|parser|util|plugins> <sha1>
+#
+# This will checkout <sha1> in the given repo, and then checkout the last
+# commit in all other repos that happened before the time of requested commit.
+
+REPO="${1}"
+SHA1="${2}"
+
+VALID_REPOS=(meta client parser util plugins)
+containsElement () {
+  local e
+  for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
+  return 1
+}
+
+containsElement "${REPO}" "${VALID_REPOS[@]}"
+RES=${?}
+
+if [ "${SHA1}" = "" -o ${RES} -ne 0 ]; then
+	echo "Usage:"
+	echo "${0} <meta|client|parser|util|plugins> <sha1>"
+	echo ""
+	echo "This will checkout <sha1> in the given repo, and then checkout the last commit in all other repos that happened before the time of requested commit."
+	exit 1;
+fi;
+
+CHECKOUTDIR="${PWD}"
+if [ ! -e "${CHECKOUTDIR}/settings.gradle" -o "$(grep "rootProject.name = 'dmdirc'" settings.gradle 2>&1)" = "" ]; then
+	echo "'${PWD}' does not look like a DMDirc/meta checkout."
+	exit 1;
+fi;
+
+
+getRepoDir() {
+	if [ "${1}" = "meta" ]; then
+		echo "${CHECKOUTDIR}/"
+	else
+		echo "${CHECKOUTDIR}/${1}"
+	fi;
+}
+
+isCommit() {
+	if [ "$(git cat-file -t "${1}" 2>&1)" = "commit" ]; then
+		echo "0"
+	else
+		echo "1"
+	fi;
+}
+
+cd $(getRepoDir "${REPO}")
+
+if [ $(isCommit ${SHA1}) -eq 1 ]; then
+	echo "Invalid commit in ${REPO}: ${SHA1}"
+	exit 1;
+fi;
+
+# Get the requested commit.
+echo -ne "\e[32m"
+echo "In ${REPO}: "
+echo -ne "\e[93m"; git show ${SHA1} -s --format="     Checking out: %H - %s"
+echo -ne "\e[93m"; git show ${SHA1} -s --format="                   Author: %an / Committer: %cn / Date: %cD"
+echo -e "\e[39m"
+
+
+echo -ne "\e[90m"
+git reset --hard
+git checkout -f ${SHA1}
+echo -e "\e[39m"
+
+THISTIME=$(git show ${SHA1} --pretty=format:%ct)
+
+# Now get all the others...
+for R in "${VALID_REPOS[@]}"
+do
+	if [ "${R}" != "${REPO}" ]; then
+		cd $(getRepoDir "${R}")
+		RSHA1=$(git rev-list -1 --before="${THISTIME}" --all)
+		echo -ne "\e[32m"
+		echo "In ${R}: "
+		echo -ne "\e[93m"; git show ${RSHA1} -s --format="     Checking out: %H - %s"
+		echo -ne "\e[93m"; git show ${RSHA1} -s --format="                   Author: %an / Committer: %cn / Date: %cD"
+		echo -e "\e[39m"
+
+		echo -ne "\e[90m"
+		git reset --hard
+		git checkout -f ${RSHA1}
+		echo -e "\e[39m"
+	fi;
+done;
+
+cd "${CHECKOUTDIR}"