Provide --debug option for very verbose execution

This effectively executes grml-debootstrap under 'set -x'
(including the chroot script), so it's easy to generate an
execution log via e.g.:

  grml-debootstrap ... --debug --force 2>&1 | tee -a grml-deboootstrap.log

and providing it to grml-debootstrap developers for further
investigation.

diff --git a/cmdlineopts.clp b/cmdlineopts.clp
index db8ebf6..fd773e8 100644 (file)
--- a/cmdlineopts.clp
+++ b/cmdlineopts.clp
@@ -12,7 +12,7 @@
 # should be handled in the main script, where it belongs.
 ################################################################################
 
-CMDLINE_OPTS=mirror:,iso:,release:,target:,mntpoint:,debopt:,interactive,nodebootstrap,nopackages,filesystem:,config:,confdir:,packages:,chroot-scripts:,scripts:,pre-scripts:,debconf:,vmfile,vmsize:,keep_src_list,hostname:,password:,nopassword,grmlrepos,backportrepos,bootappend:,grub:,arch:,insecure,verbose,help,version,force
+CMDLINE_OPTS=mirror:,iso:,release:,target:,mntpoint:,debopt:,interactive,nodebootstrap,nopackages,filesystem:,config:,confdir:,packages:,chroot-scripts:,scripts:,pre-scripts:,debconf:,vmfile,vmsize:,keep_src_list,hostname:,password:,nopassword,grmlrepos,backportrepos,bootappend:,grub:,arch:,insecure,verbose,help,version,force,debug
 
 _opt_temp=`getopt --name grml-debootstrap -o +m:i:r:t:p:c:d:vhV --long \
     $CMDLINE_OPTS -- "$@"`
@@ -128,6 +128,9 @@ while :; do
     if [ "$_opt_verbose" ]; then _opt_verbose=`expr $_opt_verbose + 1`
     else _opt_verbose=1; fi
     ;;
+  --debug)             # Execute in debug mode
+    _opt_debug==T
+    ;;
   --help|-h)           # Print usage information and exit
     _opt_help=T
     ;;

diff --git a/grml-debootstrap b/grml-debootstrap
index 576a8b6..66c8213 100755 (executable)
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -108,6 +108,7 @@ Configuration options:
 Other options:
 
   -v, --verbose            Increase verbosity.
+      --debug              Execute in very verbose way.
   -h, --help               Print this usage information and exit.
   -V, --version            Show summary of options and exit.
 
@@ -333,6 +334,11 @@ fi
 [ "$_opt_insecure" ]            && echo "Warning: --insecure is deprecated, continuing anyway."
 [ "$_opt_force" ]               && FORCE=$_opt_force
 [ "$_opt_verbose" ]             && VERBOSE="-v"
+[ "$_opt_debug" ]               && DEBUG="true"
+
+if [ "$DEBUG" = "true" ] ; then
+  set -x
+fi
 
 [ "$_opt_help" ] && {
   usage ; eend 0
@@ -1277,7 +1283,11 @@ chrootscript() {
   else
     einfo "Executing chroot-script now"
     mount --bind /dev "$MNTPOINT"/dev
-    chroot "$MNTPOINT" /bin/chroot-script ; RC=$?
+    if [ "$DEBUG" = "true" ] ; then
+      chroot "$MNTPOINT" /bin/sh -x /bin/chroot-script ; RC=$?
+    else
+      chroot "$MNTPOINT" /bin/chroot-script ; RC=$?
+    fi
     umount "$MNTPOINT"/dev
     eend $RC
   fi

diff --git a/grml-debootstrap.8.txt b/grml-debootstrap.8.txt
index 4f6fa97..1cacd8a 100644 (file)
--- a/grml-debootstrap.8.txt
+++ b/grml-debootstrap.8.txt
@@ -73,6 +73,11 @@ Options and environment variables
 
     Extra parameters passed to the debootstrap command.
 
+*--debug*::
+
+   Execute in very verbose way. Useful for debugging possible problems
+   with grml-debootstrap or identify what's actually executed.
+
 *--filesystem* _filesystem_::
 
     Filesystem that should be created when installing to a partition.