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Diffstat (limited to 'puppet/modules/concat/files/concatfragments.sh')
| m--------- | puppet/modules/concat | 0 | ||||
| -rwxr-xr-x | puppet/modules/concat/files/concatfragments.sh | 129 |
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 |