Add clearing support (directly on remote server)

clear-repo.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+# The purpose of this script is to clear our custom pacman repository
+# i.e. remove older versions of packages
+# This script should NOT be run as root.
+
+# Make sure that AWK rules file is present, readable and correctly set in this script's parameters
+
+init() {
+  # Only run if the user is not root
+  if [[ $USER = 'root' ]] ; then
+    echo "You cannot run this script as root!"
+    exit 1
+  fi
+  if [ ! -e $repo_directory/$repo_db_file ] ; then
+    echo "Could not find db file. Exiting..."
+    exit 1
+  fi
+  source variables.conf
+  echo "ArchRepo clearing script"
+}
+
+clearRepo() {
+  stream=$(tar xOf $repo_directory/$repo_db_file --wildcards */desc | awk -f $awk_rules_file)
+
+  OIFS=$IFS
+  IFS='|'
+  stream="${stream:1}"
+  current=""
+  for package in $stream
+  do
+    IFS='
+'
+    count=0
+    for line in $package; do
+      if [ $count -eq 0 ]; then
+        current="$current $line"
+      else
+        continue
+      fi
+
+      ((count++))
+    done
+
+    IFS='|'
+  done
+  IFS=$OIFS
+
+  cd $repo_directory
+  reg="^($repo_name.).+"
+  for filename in *; do
+    if [[ $filename =~ $reg || $filename = 'sync' || $filename = 'local'  || $filename = 'resources' ]]; then
+      continue
+    fi
+    for package in $current; do
+      if [ $filename = $package ]; then
+        continue 2
+      fi
+    done
+    echo "Removing $filename..."
+    rm $filename
+  done
+}
+
+run_directory_path=$(pwd)
+
+# Set parameters
+repo_db_file=$repo_name.db.tar
+repo_db_filesfile=$repo_name.files.tar
+awk_rules_file='parser.awk'
+
+# Main process
+
+if [ "$1" = "" ]; then
+  init
+  clearRepo
+else
+  echo "Please call this script without any arguments."
+  exit 1
+fi
+
+exit 0