Add update script

Test: Ran script to update to v2.2.1
Change-Id: I663e0369508e0cc598157258f0a321b42a23fc45

1 files changed, 67 insertions, 0 deletions

diff --git a/update_libcups.sh b/update_libcups.sh
new file mode 100755
index 00000000..d289b617
--- /dev/null
+++ b/update_libcups.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+
+if [ "$1" -eq "" ]; then
+   echo "Please provide the source repo"
+   exit -1
+else
+   SRC_REPO=$1
+fi
+
+TARGET_DIR=$(realpath $(dirname "$0"))
+echo "== Updating $TARGET_DIR from $SRC_REPO =="
+
+echo
+echo "== get current rev =="
+cd $TARGET_DIR
+
+CURRENT_REV=$(git tag -l | grep -v "release" | grep -v "b" | grep -v "rc" | sort | tail -n1)
+echo "Current rev is $CURRENT_REV"
+
+echo
+echo "== create tmp dir =="
+TMP_DIR=$(mktemp -d)
+echo "Created temporary dir $TMP_DIR"
+
+echo
+echo "== clone repo =="
+cd $TMP_DIR
+
+git clone $SRC_REPO .
+
+echo
+echo "== find new stable rev =="
+NEW_REV=$(git tag -l | grep -v "release" | grep -v "b" | grep -v "rc" | sort | tail -n1)
+echo "Stable rev is $NEW_REV"
+
+if [ "$CURRENT_REV" == "$NEW_REV" ] ; then
+    echo
+    echo ">>> Rev $CURRENT_REV is already the newest stable rev"
+else
+    echo
+    echo "== create diff in between rev $CURRENT_REV and rev $NEW_REV =="
+    TMP_DIFF=$(mktemp)
+    git diff $CURRENT_REV $NEW_REV -- cups/ filter/ LICENSE.txt > $TMP_DIFF
+    echo "Diff in $TMP_DIFF"
+
+    echo
+    echo "== Apply diff =="
+    cd $TARGET_DIR
+
+    patch -p1 < $TMP_DIFF
+    if [ $? -ne 0 ] ; then
+       exit 1
+    fi
+
+    git add -A
+    git commit -m "Update libcups to $NEW_REV"
+
+    git tag $NEW_REV
+
+    echo
+    echo ">>> Updated libcups from $CURRENT_REV to $NEW_REV"
+fi
+
+echo
+echo "== Cleaning up =="
+rm -f $TMP_DIFF
+rm -rf $TMP_DIR