tool to update components

Signed-off-by: Avi Deitcher <[email protected]>

Author: deitch

tools/update-component-sha.sh

@@ -0,0 +1,71 @@
+#!/bin/sh
+set -e
+
+##
+#
+# script to replace hashes in config files
+# see usage() for usage and functionality
+#
+
+usage() {
+    cat >&2 <<EOF
+$0 --<mode> <how-to-find> <new-hash>
+
+Available modes: --hash and --image
+
+Replace by hash:
+	$0 --hash <OLD> <NEW>
+	Example: $0 --hash 8675309abcdefg abcdef567899
+    	   Will replace all instances of 8675309abcdefg with abcdef567899
+
+Replace by image: $0 --image <IMAGE> <NEW>
+	$0 --image <IMAGE> <NEW>
+	Example: $0 --image linuxkit/foo abcdef567899
+	   Will tag all instances of linuxkit/foo with abcdef567899
+
+        $0 --image <IMAGE>:<NEW> is accepted as a convenient shortcut for cutting
+        and pasting e.g.the output of linuxkit pkg show-tag
+
+EOF
+}
+
+
+# sufficient arguments
+if [ $# -lt 3 ] ; then
+    usage
+    exit 1
+fi
+
+# which mode?
+case "$1" in
+    --hash)
+	if [ $# -ne 3 ] ; then
+	    usage
+	    exit 1
+	fi
+        old=$2
+        new=$3
+
+        git grep -w -l "\b$old\b" | grep -v /vendor/ | xargs sed -i.bak -e "s,$old,$new,g"
+        ;;
+    --image)
+	case $# in
+	    2)
+		image=${2%:*}
+		hash=${2#*:}
+		;;
+	    3)
+		image=$2
+		hash=$3
+		;;
+	    esac
+        git grep -E -l "[[:space:]]$image:" | grep -v /vendor/ | grep Dockerfile | xargs sed -i.bak -E -e "s,([[:space:]])($image):([^[:space:]]+), $image:$hash,g"
+        ;;
+    *)
+        echo "Unknown mode $1"
+        usage
+        exit 1
+        ;;
+esac
+
+find . -name '*.bak' | xargs rm