summaryrefslogtreecommitdiff
path: root/puppet/modules/concat/files/concatfragments.sh
diff options
context:
space:
mode:
Diffstat (limited to 'puppet/modules/concat/files/concatfragments.sh')
m---------puppet/modules/concat0
-rwxr-xr-xpuppet/modules/concat/files/concatfragments.sh129
2 files changed, 129 insertions, 0 deletions
diff --git a/puppet/modules/concat b/puppet/modules/concat
deleted file mode 160000
-Subproject abce1280e07b544d8455f1572dd870bbd2f1489
diff --git a/puppet/modules/concat/files/concatfragments.sh b/puppet/modules/concat/files/concatfragments.sh
new file mode 100755
index 00000000..c9397975
--- /dev/null
+++ b/puppet/modules/concat/files/concatfragments.sh
@@ -0,0 +1,129 @@
+#!/bin/sh
+
+# Script to concat files to a config file.
+#
+# Given a directory like this:
+# /path/to/conf.d
+# |-- fragments
+# | |-- 00_named.conf
+# | |-- 10_domain.net
+# | `-- zz_footer
+#
+# The script supports a test option that will build the concat file to a temp location and
+# use /usr/bin/cmp to verify if it should be run or not. This would result in the concat happening
+# twice on each run but gives you the option to have an unless option in your execs to inhibit rebuilds.
+#
+# Without the test option and the unless combo your services that depend on the final file would end up
+# restarting on each run, or in other manifest models some changes might get missed.
+#
+# OPTIONS:
+# -o The file to create from the sources
+# -d The directory where the fragments are kept
+# -t Test to find out if a build is needed, basically concats the files to a temp
+# location and compare with what's in the final location, return codes are designed
+# for use with unless on an exec resource
+# -w Add a shell style comment at the top of the created file to warn users that it
+# is generated by puppet
+# -f Enables the creation of empty output files when no fragments are found
+# -n Sort the output numerically rather than the default alpha sort
+#
+# the command:
+#
+# concatfragments.sh -o /path/to/conffile.cfg -d /path/to/conf.d
+#
+# creates /path/to/conf.d/fragments.concat and copies the resulting
+# file to /path/to/conffile.cfg. The files will be sorted alphabetically
+# pass the -n switch to sort numerically.
+#
+# The script does error checking on the various dirs and files to make
+# sure things don't fail.
+
+OUTFILE=""
+WORKDIR=""
+TEST=""
+FORCE=""
+WARN=""
+SORTARG=""
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+
+## Well, if there's ever a bad way to do things, Nexenta has it.
+## http://nexenta.org/projects/site/wiki/Personalities
+unset SUN_PERSONALITY
+
+while getopts "o:s:d:tnw:f" options; do
+ case $options in
+ o ) OUTFILE=$OPTARG;;
+ d ) WORKDIR=$OPTARG;;
+ n ) SORTARG="-n";;
+ w ) WARNMSG="$OPTARG";;
+ f ) FORCE="true";;
+ t ) TEST="true";;
+ * ) echo "Specify output file with -o and fragments directory with -d"
+ exit 1;;
+ esac
+done
+
+# do we have -o?
+if [ x${OUTFILE} = "x" ]; then
+ echo "Please specify an output file with -o"
+ exit 1
+fi
+
+# do we have -d?
+if [ x${WORKDIR} = "x" ]; then
+ echo "Please fragments directory with -d"
+ exit 1
+fi
+
+# can we write to -o?
+if [ -f ${OUTFILE} ]; then
+ if [ ! -w ${OUTFILE} ]; then
+ echo "Cannot write to ${OUTFILE}"
+ exit 1
+ fi
+else
+ if [ ! -w `dirname ${OUTFILE}` ]; then
+ echo "Cannot write to `dirname ${OUTFILE}` to create ${OUTFILE}"
+ exit 1
+ fi
+fi
+
+# do we have a fragments subdir inside the work dir?
+if [ ! -d "${WORKDIR}/fragments" ] && [ ! -x "${WORKDIR}/fragments" ]; then
+ echo "Cannot access the fragments directory"
+ exit 1
+fi
+
+# are there actually any fragments?
+if [ ! "$(ls -A ${WORKDIR}/fragments)" ]; then
+ if [ x${FORCE} = "x" ]; then
+ echo "The fragments directory is empty, cowardly refusing to make empty config files"
+ exit 1
+ fi
+fi
+
+cd ${WORKDIR}
+
+if [ x${WARNMSG} = "x" ]; then
+ : > "fragments.concat"
+else
+ printf '%s\n' "$WARNMSG" > "fragments.concat"
+fi
+
+# find all the files in the fragments directory, sort them numerically and concat to fragments.concat in the working dir
+find fragments/ -type f -follow | sort ${SORTARG} | while read fragfile; do
+ cat "$fragfile" >> "fragments.concat"
+done
+
+if [ x${TEST} = "x" ]; then
+ # This is a real run, copy the file to outfile
+ cp fragments.concat ${OUTFILE}
+ RETVAL=$?
+else
+ # Just compare the result to outfile to help the exec decide
+ cmp ${OUTFILE} fragments.concat
+ RETVAL=$?
+fi
+
+exit $RETVAL