Added script to create base tinderbox chroot

Usage:

For first run stage tarball has to be specified (also portage_dir if it's
not /usr/portage). For subsequent executions only base_chroot (created
during first run and optionally modified) and work_chroot need to be
supplied

1 files changed, 155 insertions, 0 deletions

diff --git a/util/mktinderboxchroot.sh b/util/mktinderboxchroot.sh
new file mode 100755
index 0000000..7ec4198
--- /dev/null
+++ b/util/mktinderboxchroot.sh
@@ -0,0 +1,155 @@
+#!/bin/bash
+# vim: set sw=4 sts=4 et :
+
+
+# Directory from which we will rsync portage to chroot
+PORTAGE_DIR=/usr/portage
+
+# stage tarball path
+STAGE_TARBALL=""
+
+
+# ==================================================================
+#                       CODE
+# ===================================================================
+
+
+help()
+{
+    echo "Usage: `basename $0` OPTIONS BASE_CHROOT_DIR WORK_CHROOT_DIR"
+    echo
+    echo "   -c                 force clean BASE_CHROOT if it exists and start over from scratch"
+    echo "   -p PORTAGE_DIR     directory where portage is (default is /usr/portage)"
+    echo "   -s STAGE_FILE      stage file used to create base chroot directory"
+    
+    exit 1
+}
+
+clean_work_chroot()
+{
+    echo -n "Cleaning work chroot..."
+    if [ -d $WORK_CHROOT ];then
+        umount "$WORK_CHROOT/dev"
+        umount "$WORK_CHROOT/proc"
+        rm -rf "$WORK_CHROOT"
+    fi
+    echo Done
+}
+
+clean_base_chroot()
+{
+    echo -n "Cleaning base chroot..."
+    if [ -d "$BASE_CHROOT" ];then
+        rm -rf "$BASE_CHROOT"
+    fi
+    if [ -f "$BASE_CHROOT.tar" ];then
+        rm -f "$BASE_CHROOT.tar"
+    fi
+    echo Done
+}
+
+
+FORCE_CLEAN_BASE=0
+
+while getopts "p:s:c" Option
+do
+  case $Option in
+    p ) PORTAGE_DIR="$OPTARG";;
+    s ) STAGE_TARBALL="$OPTARG";;
+    c ) FORCE_CLEAN_BASE=1;;
+    * ) echo "Unimplemented option chosen.";;   # DEFAULT
+  esac
+done
+
+
+shift $(($OPTIND - 1))
+
+if [ $# -ne 2 ];then
+    echo "Wrong number of arguments"
+    help
+fi
+
+BASE_CHROOT="$1"
+WORK_CHROOT="$2"
+
+echo "Using settings:"
+echo "base chroot directory: $BASE_CHROOT"
+echo "work chroot directory: $WORK_CHROOT"
+echo "portage directory:     $PORTAGE_DIR"
+echo "stage tarball:         $STAGE_TARBALL"
+
+
+if [ $FORCE_CLEAN_BASE -eq 1 ];then
+    clean_base_chroot    
+fi
+
+if [ -d "$BASE_CHROOT" ];then 
+    echo "We found $BASE_CHROOT directory, assuming it's ready"
+else
+    if [ -z "$STAGE_TARBALL" ];then
+        echo "We need stage tarball to create base chroot!! (option -s)"
+        help
+    fi
+
+    # we will need to create usr/ anyway so why not do it at once
+    mkdir -p "$BASE_CHROOT/usr"
+
+    echo -n "Unpacking stage tarball..."
+    tar xf "$STAGE_TARBALL" -C "$BASE_CHROOT"
+    if [ $? -ne 0 ];then
+        echo "Errors unpacking stage tarball, bailing out!!!"
+        rm -rf "$BASE_CHROOT"
+        exit 1
+    fi
+    echo Done
+
+    echo -n "RSyncing portage dir to $BASE_CHROOT..."
+    rsync -va "$PORTAGE_DIR" "$BASE_CHROOT/usr"
+    
+    if [ $? -ne 0 ];then
+        echo "Errors syncing portage directory, bailing out!!!"
+        rm -rf "$BASE_CHROOT"
+        exit 1
+    fi
+    echo Done
+
+    echo -n "Creating tar from $BASE_CHROOT..."
+    tar cf "$BASE_CHROOT.tar" -C "$BASE_CHROOT" .
+    if [ $? -ne 0 ];then
+        echo "Creating tar from $BASE_CHROOT failed, bailing out!!!"
+        rm -rf "$BASE_CHROOT"
+        exit 1
+    fi
+    echo Done
+fi
+
+
+clean_work_chroot
+
+echo -n "Untaring base chroot to work chroot now"
+mkdir -p "$WORK_CHROOT"
+tar pxf "$BASE_CHROOT.tar" -C "$WORK_CHROOT"
+if [ $? -ne 0 ];then
+    echo "There were problems unpacking base chroot to work chroot!!"
+    exit 1
+fi
+echo Done
+
+
+echo -n "Copying settings..."
+cp -L /etc/resolv.conf "$WORK_CHROOT/etc"
+cp -L /etc/make.conf "$WORK_CHROOT/etc"
+echo Done
+
+echo -n "Mounting filesystems..."
+mount -t proc none "$WORK_CHROOT/proc"
+mount -o bind /dev "$WORK_CHROOT/dev"
+echo Done
+
+
+echo -n "Chrooting and updating env..."
+# so that we can run env-update 
+chroot "$WORK_CHROOT" /usr/sbin/env-update
+echo Done
+
+exit 0