From cd110f2944e9fb37cd1f21bb869d24949f6941f0 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Fri, 11 Dec 2009 00:18:29 +0100
Subject: new version, mysql binlog reset

---
 common/check_tools.sh | 11 +++++++++++
 common/init.sh        | 21 +++++++++++++++++++++
 common/log.sh         | 15 +++++++++++++++
 common/update.sh      | 18 ++++++++++++++++++
 4 files changed, 65 insertions(+)
 create mode 100644 common/check_tools.sh
 create mode 100644 common/init.sh
 create mode 100644 common/log.sh
 create mode 100644 common/update.sh

(limited to 'common')

diff --git a/common/check_tools.sh b/common/check_tools.sh
new file mode 100644
index 0000000..ba3640d
--- /dev/null
+++ b/common/check_tools.sh
@@ -0,0 +1,11 @@
+# check for necessary tools
+
+_check_tools() {
+    for prog in $@
+    do 
+	if ! hash $prog 2>/dev/null ; then
+	    echo "Error: This script needs '$prog'. Exiting..." >&2
+	    exit 1
+	fi
+    done
+}
diff --git a/common/init.sh b/common/init.sh
new file mode 100644
index 0000000..a955f18
--- /dev/null
+++ b/common/init.sh
@@ -0,0 +1,21 @@
+# init common function for backup
+
+# get path to common script dir
+if [ -z "${BACKUP_ROOT}" -o ! -d "${BACKUP_ROOT}/common/" ]; then
+    echo "\$BACKUP_ROOT not set or invalid! (common dir not there)" >&2
+    echo "Please set it to the path to the root directory of the" >&2
+    echo "backup scripts before sourcing this init.sh file." >&2
+    exit 1
+fi
+
+# load all common scripts
+for file in ${BACKUP_ROOT}/common/*
+do
+    if [ "$(basename ${file})" != "init.sh" ]; then
+	source "${file}"
+    fi
+done
+
+# check if git is available for update
+_check_tools git
+_self_update
diff --git a/common/log.sh b/common/log.sh
new file mode 100644
index 0000000..622a9bb
--- /dev/null
+++ b/common/log.sh
@@ -0,0 +1,15 @@
+# log function for displaying output if loging enabled
+
+_log() {
+    # only output something,
+    # if logging is enabled
+    if [ $LOGGING -eq 0 ]; then
+	if [ -n "$1" ]; then
+	    # echo arguments
+	    echo "$@"
+	else
+	    # echo stdin
+	    cat
+	fi
+    fi 
+}
diff --git a/common/update.sh b/common/update.sh
new file mode 100644
index 0000000..c4f0b5f
--- /dev/null
+++ b/common/update.sh
@@ -0,0 +1,18 @@
+# update backup scripts
+
+_self_update() {
+    pushd $(dirname $0) &>/dev/null
+
+    git fetch origin 2>/dev/null
+    if [[ -n "$(git whatchanged HEAD..origin/master)" ]]; then
+	echo "Selfupdating backupscript..." | log
+	git merge origin/master | log
+	echo "Selfupdating done." | log
+	echo | log
+
+	popd &>/dev/null
+	exec $0
+    fi
+
+    popd &>/dev/null
+}
-- 
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