From d33c93ef6dd3c3905d27e993d8c28c27e003e18b Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Wed, 7 Aug 2013 17:43:21 +0200
Subject: [clone_stage4] updated scripts to clone stage4. Script can be run
 from any path now. Its now also possible to clone a local system.

---
 scripts/clone_stage4 | 50 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 34 insertions(+), 16 deletions(-)

(limited to 'scripts')

diff --git a/scripts/clone_stage4 b/scripts/clone_stage4
index 84805062..ab1cce05 100755
--- a/scripts/clone_stage4
+++ b/scripts/clone_stage4
@@ -1,6 +1,14 @@
 #!/bin/bash
+#
+#	Helper script to generate a stage4 export
+#	for a remote machine per rsync.
+#
 
-. "../helper/logging.inc"
+SELF="$(readlink -f $0)"
+SCRIPTS_DIR="$(dirname "${SELF}")"
+ROOT_DIR="${SCRIPTS_DIR%/*}"
+
+. "${ROOT_DIR}/helper/logging.inc"
 
 MLTK_PID="$$"
 
@@ -10,24 +18,34 @@ qnd_exit() {
 	[ $# -ge 1 ] && kill "$1"
 }
 
+[ $# -lt 3 ] && perror "$0 <remote_ip> <stage_to_exclude> <target_dir>"
 
-[ $# -lt 3 ] && perror "$0 <vorlage> <stage> <target_dir>"
-
-BASEDIR="./server/local_builds/$1"
-BOOTDIR="./server/boot/$1"
-[ ! -d "$BASEDIR" ] && perror "Unknown Vorlage '$1'"
-BASEDIR="$BASEDIR/$2"
-[ ! -d "$BASEDIR" ] && perror "Unknown Stage '$2' for Vorlage '$1'"
-TARGETDIR="$3"
-mkdir -p "$TARGETDIR"
-mkdir -p "$BOOTDIR"
-[ ! -z "$(ls "$TARGETDIR")" ] && perror "Target dir '$TARGETDIR' not empty"
+BASE_DIR="${ROOT_DIR}/server/local_builds/$1"
+BOOT_DIR="${ROOT_DIR}/server/boot/$1"
+[ ! -d "$BASE_DIR" ] && perror "Unknown Vorlage '$1'"
+BASEDIR="${BASE_DIR}/$2"
+[ ! -d "$BASE_DIR" ] && perror "Unknown Stage '$2' for Vorlage '$1'"
+TARGET_DIR="$3"
+mkdir -p "$TARGET_DIR"
+mkdir -p "$BOOT_DIR"
+[ ! -z "$(ls "${TARGET_DIR}")" ] && perror "Target dir '${TARGET_DIR}' not empty"
 
 pinfo "Building rsync exclude-file for building stage 4...."
-cp "data/basic.nocopy" "$BOOTDIR/exclude-stage4"
-find "$BASEDIR" -type f | cut -c $[${#BASEDIR} + 1]- >> "$BOOTDIR/exclude-stage4"
+cp "${ROOT_DIR}/data/basic.nocopy" "${BOOT_DIR}/exclude-stage4"
+
+# this next command lists all files found in BASE_DIR and removed the prefix BASE_DIR
+find "${BASE_DIR}" -type f | cut -c $[${#BASE_DIR} + 1]- >> "${BOOT_DIR}/exclude-stage4"
 pinfo "Done."
 
-pinfo "Cloning via rsync"
-rsync -a --numeric-ids -v --exclude-from="$BOOTDIR/exclude-stage4" -e "ssh -oStrictHostKeyChecking=no" "root@$1:/" "$TARGETDIR" || perror "rsync from 'root@$1:/' to '$TARGETDIR' failed."
+# prepare rsync's options depending on whether the source is local or remote
+RSYNC_OPTS=""
+RSYNC_SOURCE=""
+if [[ "$1" == "local" ]]; then
+	RSYNC_SOURCE="/"
+else
+	RSYNC_SOURCE="root@$1:/"
+	RSYNC_OPTS="-e ssh -oStrictHostKeyChecking=no"
+fi
 
+pinfo "Cloning via rsync"
+rsync -a --numeric-ids -v --exclude-from="${BOOT_DIR}/exclude-stage4" "${RSYNC_OPTS}" "${RSYNC_SOURCE}" "${TARGET_DIR}" || perror "rsync from '${RSYNC_SOURCE}' to '${TARGET_DIR}' failed."
-- 
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