RM-6428 Handle multiple source images and multiple destinations.

Also update the scripts to be executable.

scripts/pushDockerDigestTag.sh

@@ -2,30 +2,76 @@
 
 scriptName=`basename "$0"`
 
-if [ "$#" -ne 2 ]; then
-    echo "Usage: ${scriptName} <imageName> <existingTag>"
+usage="Usage: $scriptName [options]
+
+    -h , --help           show this help text
+    -i <sourceImage>      a source image to use
+                          (e.g. quay.io/alfresco/ags-share-community)
+    -r <repository>       a repository to push new tags to
+                          (e.g. registry.hub.docker.com)
+    -t <tag>              the existing tag for the images (mandatory)
+    -d <digestLength>     the length of digest to output (default 12 chars)"
+
+digestLength=12
+
+while getopts ':hi:r:t:d:' option; do
+  case "$option" in
+    h) echo -e "Tag one or more images to include the digest and push this to some repositories.\n\n${usage}"
+       exit
+       ;;
+    i) sourceImages+=("$OPTARG")
+       ;;
+    r) repositories+=("$OPTARG")
+       ;;
+    t) existingTag=$OPTARG
+       ;;
+    d) digestLength=$OPTARG
+       ;;
+    :) echo -e "Missing argument for -${OPTARG}\n\n${usage}" >&2
+       exit 1
+       ;;
+   \?) echo -e "Illegal option: -${OPTARG}\n\n${usage}" >&2
+       exit 1
+       ;;
+  esac
+done
+shift $((OPTIND - 1))
+
+if [ "#$existingTag" == "#" ]; then
+    echo -e "Please supply a tag with the -t option.\n\n${usage}" >&2
     exit 1
 fi
 
-echo "${scriptName} called with:"
-image=$1
-echo "  image: $image"
-existingTag=$2
-echo "  existingTag: $existingTag"
+for sourceImage in ${sourceImages[@]}
+do
+    echo "Processing $sourceImage"
 
-DIGEST_LENGTH=12
+    # Note that this command should work even if the image is already present locally.
+    digest=`docker pull ${sourceImage}:${existingTag} | grep "Digest:" | awk -F':' '{print $3}' | cut -c 1-$digestLength`
 
-# Note that this command should work even if the image is already present locally.
-digest=`docker pull ${image}:${existingTag} | grep "Digest:" | awk -F':' '{print $3}' | cut -c 1-$DIGEST_LENGTH`
-
-if [ ${#digest} != $DIGEST_LENGTH ]
-then
-    echo "Unexpected length for digest: '$digest'"
+    if [ ${#digest} != $digestLength ]
+    then
+        echo "Unexpected length for digest of ${sourceImage}: '${digest}'" >&2
         exit 1
-fi
+    fi
 
-newTag=${existingTag}_${digest}
-docker tag ${image}:${existingTag} ${image}:${newTag}
-docker push ${image}:${newTag}
+    newTag=${existingTag}_${digest}
 
-echo "Pushed ${image}:${existingTag} to ${image}:${newTag}"
+    # Remove the source repository name if it contains one.
+    slashes=`echo $sourceImage | sed "s|[^/]||g"`
+    if [ ${#slashes} == 2 ]
+    then
+        # The repository name is everything up to the first slash.
+        image=`echo $sourceImage | sed "s|[^/]*/||"`
+    else
+        # Assume the source image doesn't reference the repository name.
+        image=$sourceImage
+    fi
+
+    for repository in ${repositories[@]}
+    do
+        docker tag ${sourceImage}:${existingTag} ${repository}:${image}:${newTag}
+        docker push ${repository}:${image}:${newTag}
+        echo "Pushed ${sourceImage}:${existingTag} to ${repository}:${image}:${newTag}"
+    done
+done