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ngcpcfg/scripts/services

99 lines
2.8 KiB

#!/bin/bash
# Purpose: detect modified files in config tree and execute
# any defined service modifications
################################################################################
set -e
set -u
if ! [ -r /usr/share/ngcp-ngcpcfg/functions/main ] ; then
printf "Error: /usr/share/ngcp-ngcpcfg/functions/main could not be read. Exiting.\n" >&2
exit 1
fi
. /usr/share/ngcp-ngcpcfg/functions/main
# main script
cd "$CONFIG_POOL"
DRYRUN='false'
if [[ "${1:-}" == "test" ]] || [[ "${1:-}" == "--dry-run" ]]; then
DRYRUN='true'
elif [[ -n "${1:-}" ]] ; then
log_error "Unsupported option(s) given: $*"
log_info "Did you mean '--dry-run'?"
exit 1
fi
log_debug "DRYRUN = $DRYRUN"
TMPFILE="$(mktemp)"
# unify service calls
unifyer() {
file="$1"
# make sure services are listed just once to
# avoid re-execution of services (which will
# happen if /etc/foo/ngcpcfg.services exists
# and several file inside /etc/foo are modified)
if ! grep -q "^${file}$" "$TMPFILE" ; then
echo "$file" >> $TMPFILE
fi
}
# NOTES:
# * 'git ls-files -o' also shows ignored files
# * 'git status --porcelain |grep '^?? ' not available in git 1.5
# The 'git diff' command fixes a strange race condition where 'git diff-index'
# lists *all* generated file(s) where the time stamp differs, resulting in a
# list of *all* generated files (which is not what we want).
# After running 'git diff' the following 'git diff-index ...' command lists
# only the modified files as we want and need it. See BTS #211 for bugreport.
git diff &>/dev/null
for file in $(git diff-index --name-only HEAD) ; do
if [ -r "$file" ] && [ -r "${SERVICES_POOL}/${file}".services ] ; then
log_debug "unifyer ${SERVICES_POOL}/${file}.services"
unifyer "${SERVICES_POOL}/${file}".services
elif [ -r "$file" ] && [ -r $SERVICES_POOL/"$(dirname $file)"/ngcpcfg.services ] ; then
log_debug "unifyer ${SERVICES_POOL}/$(dirname $file)/ngcpcfg.services"
unifyer "${SERVICES_POOL}"/"$(dirname $file)/ngcpcfg.services"
fi
done
exec_wrapper() {
# normalize path (get rid of "./" and "//")
line="$(echo $1 | sed -e 's/\.\///g ; s/\/\//\//g')"
if $DRYRUN ; then
log_info "TEST MODE: Would execute action for ${line}"
return 0
fi
log_info "Executing action for $line"
if [ -x "$line" ] ; then
log_debug "$line"
if ! "$line" ; then
log_warn "$line returned with error code, continuing anyway."
fi
elif [ -r "$line" ] ; then
log_debug "bash $line"
if ! bash "$line" ; then
log_warn "$line returned with error code, continuing anyway."
fi
else
log_error "Error: $line could not be read."
exit 1
fi
}
for line in $(cat $TMPFILE) ; do
exec_wrapper "$line"
done
rm -f "$TMPFILE"
## END OF FILE #################################################################