Fixed version reported when run from Git (issue #55)

[grml-debootstrap.git] / grml-debootstrap

diff --git a/grml-debootstrap b/grml-debootstrap
index ffcb6aa..2a27c46 100755 (executable)
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -8,7 +8,11 @@
 
 # variables {{{
 PN="$(basename "$0")"
-VERSION="$(dpkg-query --show --showformat='${Version}' "$PN")"
+if [[ -d "$(dirname "$(which "$0")")"/.git ]]; then
+  VERSION="$(git describe | sed 's|^v||')"
+else
+  VERSION="$(dpkg-query --show --showformat='${Version}' "$PN")"
+fi
 VERSION="${VERSION:-unknown}"
 MNTPOINT="/mnt/debootstrap.$$"
 
@@ -205,8 +209,11 @@ cleanup() {
   if [ -n "$MNTPOINT" ] ; then
     if grep -q "$MNTPOINT" /proc/mounts ; then
       # make sure nothing is left inside chroot so we can unmount it
-      [ -x "$MNTPOINT"/etc/init.d/ssh   ] && "$MNTPOINT"/etc/init.d/ssh stop
-      [ -x "$MNTPOINT"/etc/init.d/mdadm ] && "$MNTPOINT"/etc/init.d/mdadm stop
+      for service in ssh mdadm ; do
+        if [ -x "${MNTPOINT}/etc/init.d/${service}" ] ; then
+          chroot "$MNTPOINT" "/etc/init.d/${service}" stop
+        fi
+      done
 
       [ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount -a >/dev/null 2>&1
 
@@ -375,7 +382,7 @@ fi
 
 # make sure we have what we need {{{
 if [ -n "$VIRTUAL" ] ; then
-  check4progs kpartx mksh parted qemu-img || bailout 1
+  check4progs grub-mkimage kpartx mksh parted qemu-img || bailout 1
 fi
 # }}}
 
@@ -821,6 +828,14 @@ if [ "$CURRENT_ARCH" != "x86_64" ] ; then
 fi
 # }}}
 
+# Support for generic release codenames is unavailable. {{{
+if [ "$RELEASE" = "stable" ] || [ "$RELEASE" = "testing" ] ; then
+   eerror "Generic release codenames (stable, testing) are unsupported. \
+Please use specific codenames such as lenny, squeeze, wheezy or jessie." ; eend 1
+   bailout 1
+fi
+# }}}
+
 checkconfiguration
 
 # finally make sure at least $TARGET is set [the partition for the new system] {{{
@@ -1338,6 +1353,26 @@ execute_scripts() {
 }
 # }}}
 
+try_umount() {
+  local tries=$1
+  local mountpoint="$2"
+
+  for (( try=1; try<=tries; try++ )); do
+    if [[ ${try} -eq ${tries} ]]; then
+      # Last time, show errors this time
+      umount "${mountpoint}" && return 0
+    else
+      # Not last time, hide errors until fatal
+      if umount "${mountpoint}" 2>/dev/null ; then
+        return 0
+      else
+        sleep 1
+      fi
+    fi
+  done
+  return 1  # Tried enough
+}
+
 # execute chroot-script {{{
 chrootscript() {
   if ! [ -r "$MNTPOINT/bin/chroot-script" ] ; then
@@ -1355,7 +1390,7 @@ chrootscript() {
     else
       chroot "$MNTPOINT" /bin/chroot-script ; RC=$?
     fi
-    umount "$MNTPOINT"/dev
+    try_umount 3 "$MNTPOINT"/dev
     eend $RC
   fi