add ability to add more ubuntu mirror components

the original update_mirror.sh only allowed for mirroring the main
repository. left out restricted, multiverse, etc. the component is now
an array so it is easy to add additional components if you want to mirror
more than just main

assets/update_mirror.sh

@@ -3,8 +3,16 @@ set -e
 
 # Automate the initial creation and update of an Ubuntu package mirror in aptly
 
+# The variables (as set below) will create a mirror of the Ubuntu Trusty repo 
+# with just the main component, you can add other components like restricted
+# universe etc by adding to the array (separated by spaces).
+
+# For more detail about each of the variables below refer to: 
+# https://help.ubuntu.com/community/Repositories/CommandLine
+
 UBUNTU_RELEASE=trusty
 UPSTREAM_URL="http://archive.ubuntu.com/ubuntu/"
+COMPONENTS=( main )
 REPOS=( ${UBUNTU_RELEASE} ${UBUNTU_RELEASE}-updates ${UBUNTU_RELEASE}-security )
 
 # Export the GPG Public key
@@ -14,35 +22,44 @@ fi
 
 # Create repository mirrors if they don't exist
 set +e
-for repo in ${REPOS[@]}; do
-  aptly mirror list -raw | grep "^${repo}$"
-  if [[ $? -ne 0 ]]; then
-    echo "Creating mirror of ${repo} repository."
-    aptly mirror create \
-      -architectures=amd64 ${repo} ${UPSTREAM_URL} ${repo} main
-  fi
+for component in ${COMPONENTS[@]}; do
+  for repo in ${REPOS[@]}; do
+    aptly mirror list -raw | grep "^${repo}-${component}$"
+    if [[ $? -ne 0 ]]; then
+      echo "Creating mirror of ${repo}-${component} repository."
+      aptly mirror create \
+        -architectures=amd64 ${repo}-${component} ${UPSTREAM_URL} ${repo} ${component}
+    fi
+  done
 done
 set -e
 
 # Update all repository mirrors
-for repo in ${REPOS[@]}; do
-  echo "Updating ${repo} repository mirror.."
-  aptly mirror update ${repo}
+for component in ${COMPONENTS[@]}; do
+  for repo in ${REPOS[@]}; do
+    echo "Updating ${repo}-${component} repository mirror.."
+    aptly mirror update ${repo}-${component}
+  done
 done
 
 # Create snapshots of updated repositories
-for repo in ${REPOS[@]}; do
-  echo "Creating snapshot of ${repo} repository mirror.."
-  aptly snapshot create ${repo}-`date +%Y%m%d%H` from mirror ${repo}
+for component in ${COMPONENTS[@]}; do
+  for repo in ${REPOS[@]}; do
+    echo "Creating snapshot of ${repo}-${component} repository mirror.."
+    SNAPSHOTARRAY+="${repo}-${component}-`date +%Y%m%d%H` "
+    aptly snapshot create ${repo}-${component}-`date +%Y%m%d%H` from mirror ${repo}-${component}
+  done
 done
 
+echo ${SNAPSHOTARRAY[@]}
+
+#### I STOPPED HERE
+
 # Merge snapshots into a single snapshot with updates applied
 echo "Merging snapshots into one.." 
 aptly snapshot merge -latest                 \
   ${UBUNTU_RELEASE}-merged-`date +%Y%m%d%H`  \
-  ${UBUNTU_RELEASE}-`date +%Y%m%d%H`         \
-  ${UBUNTU_RELEASE}-updates-`date +%Y%m%d%H` \
-  ${UBUNTU_RELEASE}-security-`date +%Y%m%d%H`
+  ${SNAPSHOTARRAY[@]}
 
 # Publish the latest merged snapshot
 set +e