Some more code additions and cleanups in bldpkg

bldpkg

@@ -29,8 +29,6 @@
 # Exit on any error
 set -e 
 
-# All variable names are to be in upper-case, function names in lower-case.
-
 # Time when the build commenced. Note: elapsed time is logged by the runtime function way below. This output goes 
 # into package build summary.
 commencedate="$(date '+%a, %d %b %Y, %T')"
@@ -40,34 +38,25 @@ srcdir="$PWD"
 
 # Get relative directory name from SRCDIR
 srcdirpath="$(basename $srcdir)"
-
-sourcebuildfile() {
-  file=$1
-  if [ -f "$file" ] ; then
-    source "$file"
-   elif [ -f "$srcdirpath.SMBuild" ] ; then
-     source "$srcdirpath.SMBuild" 
-  else
-    echo "[ERROR] Could not find $srcdirpath build file to source from!"
-  fi
-}
+buildfile="$srcdirpath.SMBuild"
 
 debugmode() {
-  set -ex
-  sourcebuildfile $1
+  set -x
+  source "$buildfile"
 }
 
 # Generate sha512sums in the build file
 genchecksum() {
-  echo "[INFO] Discarding old sha512sums from $srcdirpath.SMBuild"
+  echo "[INFO] Discarding old sha512sums from $buildfile"
+  tempbuildfile="$buildfile"
   sed -E -i \
     -e '/^sha512sums=".*"$/d' \
     -e '/^sha512sums="/,/"$/d' \
     -e "/^sha512sums='.*'\$/d" \
-    "$srcdirpath".SMBuild
+    "$buildfile"
 
-  echo "[INFO] Adding new sha512sums in $srcdirpath.SMBuild"
-  printf 'sha512sums="\n' >> "$srcdirpath.SMBuild"
+  echo "[INFO] Adding new sha512sums in $tempbuildfile"
+  printf 'sha512sums="\n' >> "$tempbuildfile"
 
   # File types
   files=( *.tar.* *.zip *.t?z *.patch *.diff *.c *.h )
@@ -75,13 +64,13 @@ genchecksum() {
   # Checksum digest to be used along with arguments
   checksumbinary="sha512sum"
 
-  for buildfile in ${files[@]} ; do
-    if [ -f "$buildfile" ] ; then
-      $checksumbinary $buildfile >> "$srcdirpath.SMBuild"
+  for file in ${files[@]} ; do
+    if [ -f "$file" ] ; then
+      $checksumbinary $file >> "$tempbuildfile"
     fi
   done
 
-  printf '"' >> "$srcdirpath.SMBuild"
+  printf '"' >> "$tempbuildfile"
   echo "[INFO] You may now run bldpkg again"
   exit 0
 }
@@ -90,38 +79,52 @@ help() {
 cat << EOF
 Bash script for building SMLinux-compatible packages from source.
 
-This script takes only one parameter. Unmatched parameters are ignored.
+This script takes only one parameter.
 
 Usage: 
-  -g | g | gen : Generate sha512 checksums of all tarballs and patches and put them into the package build file
+  -d : Invoke bash shell debug mode
 
-  -h | h | help : Show this message
+  -h : Show this message
 
-  -d | d | debug : Invoke bash shell debug mode
+  -g : Generate SHA512 checksums of all tarballs and patches and insert them into the package build file
 
   If no arguments are provided, this script attempts to build a package provided the package build file and the parent directory name matches.
 EOF
 exit 0
 }
 
-if [ "$#" -gt 1 ] ; then
-  help
+while getopts ':dhg' option; do
+  case "$option" in
+    d)
+      debugmode
+      ;;
+    h)
+      help
+      ;;
+    g)
+      genchecksum 
+      ;;
+    *)
+      help
+      ;;
+  esac
+done
+
+# If no argument is given, attempt to source the build file matching the parent directory name
+if [ "$OPTIND" -eq 1 ] ; then
+  if [ -f "$buildfile" ] ; then
+     source "$buildfile" 
+  else
+    echo "[ERROR] Could not find $srcdirpath build file to source from!"
+    exit 1
+  fi
 fi
 
-case "$1" in
-  -g|g|gen)
-  genchecksum
-  ;;
-  -h|h|help)
-  help
-  ;;
-  -d|d|debug)
-  debugmode
-  ;;
-  *)
-  sourcebuildfile $1
-  ;;
-esac
+# Determine whether we are using bash version 4 and later
+if [ "${BASH_VERSINFO[0]}" -lt 4 ] ; then
+  echo "[ERROR] You need to upgrade your bash shell to a minimum of 4.0 or higher"
+  exit 1
+fi
 
 # Validate the build file. If any of the following variables are not set in the build file, abort.
 for buildvariables in app version build homepage desc requires ; do
@@ -164,7 +167,7 @@ if [ "$(echo "$desc" | wc -c)" -gt 100 ] ; then
 fi
 
 # Check if build() function exists in the build file
-if [[ ! "$(grep '^build()' "$srcdirpath".SMBuild)" ]] ; then
+if [[ ! "$(grep '^build()' "$buildfile")" ]] ; then
   echo "[ERROR] build() function does not exist in your build file."
   exit 1
 fi
@@ -176,8 +179,8 @@ sleep 0.5
 # Only verify source checksums if skipchecksum is not set in the build file
 if [ -z "$skipchecksum" ] ; then
   if [ -z "$sha512sums" ] ; then 
-    echo "[ERROR] SHA512 checksums don't exist in $srcdirpath.SMBuild !"
-    echo "[ERROR] Please run 'bldpkg genchecksum' to add them"
+    echo "[ERROR] SHA512 checksums don't exist in $buildfile !"
+    echo "[ERROR] Please run 'bldpkg -g' to add them"
     exit 1
   fi
   
@@ -868,7 +871,7 @@ mkfinalpkg() {
   find "$pkg" ! -type d -name "*.la" -exec rm -v {} \;
 
   # Provide a copy of the package build file so that users know the build options that went into compiling the package
-  install -Dm 644 "$srcdir/$app.SMBuild" "$pkgdocs/$app.SMBuild"
+  install -Dm 644 "$srcdir/$buildfile" "$pkgdocs/$app.SMBuild"
 
   # Now strip the binaries and shared libraries
   if [ -z "$debug" ] && [ "$debug" != "1" ]; then
@@ -1260,6 +1263,8 @@ interruptoutput() {
   echo ""
   echo "[INFO] Caught Keyboard Interrupt"
   wasinterrupted="1"
+  # Restore terminal colours
+  echo -e "$colourd"
   # If installprompt and extractprompt are set and the prompt is invoked after a successful build, hitting
   # ctrl-C will only set the above sm variable repeatedly and won't return user to the shell because
   # of the interrupt (SIGINT) trap set way below. Putting exit 0 is a decent way to get out of that prompt