[PATCH] Added deinstallation functionality

[Wald Commits]

# HG changeset patch
# User Sascha Wilde <wilde at intevation.de>
# Date 1404306745 -7200
# Node ID acbe7542328333a7b09362c25a34d97a466a79b0
# Parent  86c9ff4cfb024a5e761b7e03f49015b526a1335c
Added deinstallation functionality.

diff -r 86c9ff4cfb02 -r acbe75423283 packaging/linux-createpackage.sh.in
--- a/packaging/linux-createpackage.sh.in	Wed Jul 02 14:26:29 2014 +0200
+++ b/packaging/linux-createpackage.sh.in	Wed Jul 02 15:12:25 2014 +0200
@@ -19,12 +19,19 @@
 # shar-archive.
 echo "Using $TMPDIR for temporary installation to build installer..."
 install -d "$TMPDIR/bin"
-install "${EXEFILES[@]}" "$TMPDIR/bin" 
+install "${EXEFILES[@]}" "$TMPDIR/bin"
+
+echo "Creating shar archive ..."
+cd "$TMPDIR"
+shar -z -B bin/* | sed 's/^exit 0//' >>"$TMPSHAR"
 
 echo "Building $INSTALLER..."
 cp "@CMAKE_BINARY_DIR@/packaging/linux-installer.inc" "$INSTALLER"
-cd "$TMPDIR"
-shar -z -B bin/* | sed 's/^exit 0//' >>"$TMPSHAR"
+binnames=""
+for file in "${EXEFILES[@]}" ; do
+  binnames="`basename $file` $binnames"
+done
+sed -i "s/###BINNAMES###/${binnames}/" "$INSTALLER"
 sed -i "/###SHAR###/r $TMPSHAR" "$INSTALLER"
 chmod +x "$INSTALLER"
 
diff -r 86c9ff4cfb02 -r acbe75423283 packaging/linux-installer.inc.in
--- a/packaging/linux-installer.inc.in	Wed Jul 02 14:26:29 2014 +0200
+++ b/packaging/linux-installer.inc.in	Wed Jul 02 15:12:25 2014 +0200
@@ -9,6 +9,8 @@
 INSTCFGNAME="installation.cfg"
 FORCE=0
 SYSINST=0
+DEINSTALL=0
+BINNAMES="###BINNAMES###"
 
 declare -A instcfg oldinstcfg
 declare inst_default_prefix instcfg_file
@@ -41,7 +43,11 @@
 fatal()
 {
   echo "$1" >&2
-  echo "Installation failed." >&2
+  if [ $DEINSTALL -eq 1 ] ; then
+      echo "Deinstallation failed." >&2
+  else
+    echo "Installation failed." >&2
+  fi
   exit 1
 }
 
@@ -53,20 +59,40 @@
 
 Options:
   -p, --prefix=PATH  install files in PATH
-  -s, --system=PATH  make an system wide installation
   -f, --force        install to given prefix, even when a current
                      installation with different prefix exists.
+  -d, --deinstall    deinstall files from current installation
+  -s, --system=PATH  make an system wide (de)installation
       --help         display this help and exit
       --version      output version information and exit
 EOF
   exit $1
 }
 
+yorn()
+{
+  local c
+  while true ; do
+    read -n 1 c
+    echo
+    case "$c" in
+      y|Y|j|J)
+        return 0
+        ;;
+      n|N)
+        return 1
+        ;;
+      *)
+        echo >&2 "Answer [Y]es or [N]o: "
+    esac
+  done
+}
+
 parse_args()
 {
   OPTS=`getopt \
-      -l force,help,prefix:,system,version \
-      -o f,p:,s -n "$ME" -- "$@"`
+      -l deinstall,force,help,prefix:,system,version \
+      -o d,f,p:,s -n "$ME" -- "$@"`
   [ $? -eq 0 ] || usage 23
 
   eval set -- "$OPTS"
@@ -85,6 +111,10 @@
         FORCE=1
         shift 1
         ;;
+      --deinstall|-d)
+        DEINSTALL=1
+        shift 1
+        ;;
       --help)
         usage 0
         ;;
@@ -136,6 +166,31 @@
   fi
 }
 
+deinstall()
+{
+  if [ "${oldinstcfg[PREFIX]}" ] ; then
+      echo "Really deinstall TrustBridge from '${oldinstcfg[PREFIX]}'?"
+      yorn || exit 0
+      local deinstdir="${oldinstcfg[PREFIX]}/bin"
+      echo "Deinstalling from '${oldinstcfg[PREFIX]}'."
+      for file in $BINNAMES ; do
+        local path="${deinstdir}/$file"
+        echo "Deleting '$path' ..."
+        rm "$path" || echo >&2 "WARNING: Could not delete: '$path'!"
+      done
+      while [ "$deinstdir" -a -z "$(ls -A "$deinstdir")" ] ; do
+        echo "Deleting empty directory '$deinstdir' ..."
+        rmdir "$deinstdir"
+        deinstdir=`dirname "$deinstdir"`
+      done
+      echo "Removing installation configuration from: $instcfg_file ..."
+      rm "$instcfg_file"
+      echo "Deinstallation finished."
+  else
+    echo "No current installation found!  No harm done."
+  fi
+}
+
 
 #======================================================================
 # main()
@@ -154,6 +209,12 @@
 ------------------------------------------------------------------------
 EOF
 
+if [ $DEINSTALL -eq 1 ] ; then
+    deinstall
+    # Stop after deinstallation:
+    exit 0
+fi
+
 if [ -z "${instcfg[PREFIX]}" ] ; then
 
     if [ "${oldinstcfg[PREFIX]}" ] ; then
@@ -186,6 +247,7 @@
 echo "unpacking files ..."
 cd "${instcfg[PREFIX]}"
 
+set +u
 # ----------------------------------------------------------------------
 # regular shar archive inserted here:
 ###SHAR###