mirror of https://github.com/sipwise/ngcpcfg.git
The 'ngcpcfg' received support for 'patchtt' files, like > /etc/ngcp-config/templates/etc/foo/bar.patchtt.tt2 Those 'patchtt' are going to be applied on default 'tt2 template' file: > /etc/ngcp-config/templates/etc/foo/bar.tt2 and produce 'customtt' on 'ngcpcfg patch': > /etc/ngcp-config/templates/etc/foo/bar.customtt.tt2 Further 'customtt' will be used to overwrite 'tt2 templates' on 'ngcpcfg build' or 'ngcpcfg apply'. NOTE: 'ngcpcfg patch' is executed automatically on every 'ngcpcfg build'. It should allows to update ngcp-templates easily and support local modifications without the pain (until the patches can be applied). Change-Id: Ice4369386313c5d33e4d498346345eade6f3d0d7changes/45/16945/17
Alexander Lutay
8 years ago
parent
5775b11527
commit
a2a8b52f13
@ -0,0 +1,179 @@
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#!/bin/bash
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# Purpose: *.patchtt functionality for ngcpcfg config/templates
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################################################################################
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set -e
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set -u
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# support testsuite
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FUNCTIONS="${FUNCTIONS:-/usr/share/ngcp-ngcpcfg/functions/}"
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HELPER="${HELPER:-/usr/share/ngcp-ngcpcfg/helper/}"
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SCRIPTS="${SCRIPTS:-/usr/share/ngcp-ngcpcfg/scripts/}"
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if ! [ -r "${FUNCTIONS}"/main ] ; then
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printf "Error: %s/main could not be read. Exiting.\n" "${FUNCTIONS}" >&2
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exit 1
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fi
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. "${FUNCTIONS}"/main
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cd "${NGCPCTL_MAIN}"
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## functions {{{
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patch_help() {
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export TIME_FORMAT=''
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log_info "'ngcpcfg patch' walks through all templates searching for '*.patchtt.tt2' files"
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log_info "and generates '*.customtt.tt2' files based on the original template"
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log_info ""
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log_info "Sample:"
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log_info " ngcpcfg patch [--help] [<patchtt file(s)>]"
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log_info ""
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log_info "Run 'man ngcpcfg' for more information."
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}
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patch_search() {
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log_debug "Searching for patchtt files"
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local patchlist
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patchlist=$(mktemp)
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local a="\.sp[12]?"
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local b="\.(web|db|prx|lb|slb)[0-9]+[ab]?"
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local awk_regexp=".*patchtt\.tt2(${a}|${b})?$"
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for dir in ${CONFIG_POOL} ; do
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[ -n "${dir}" ] || log_error "${dir} doesn't exist"
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# iterate over all files
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while read -r patch ; do
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# *NO* arguments provided via cmdline
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if [ -z "${1:-}" ] ; then
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log_debug "Found patch '${patch}'"
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echo "${patch}" >> "${patchlist}"
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else
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# arguments (file list/pattern) provided via cmdline
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for arg in "$@"; do
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if echo "${patch}" | grep -q -- "${arg}" ; then
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log_debug "Processing patch '${patch}' as requested"
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echo "${patch}" >> "${patchlist}"
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fi
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done
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fi
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done < <(find "${TEMPLATE_POOL_BASE}/${dir}" -regextype awk -iregex "${awk_regexp}")
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done
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# output patch list, make sure we provide the file names just once
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sort -u "${patchlist}"
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if [ -n "${DEBUG:-}" ] ; then
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# send to stderr since stdout is used from outside
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log_debug "Not removing temporary patchlist files since we are in debug mode:" >&2
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log_debug " patchlist = ${patchlist}" >&2
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else
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rm -f "${patchlist}"
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fi
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}
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patch_validate() {
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local patch="$1"
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log_debug "Validating patch: '${patch}'"
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if [ ! -f "${patch}" ] ; then
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log_error "Missing patch file '${patch}'"
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bad_patches+=("${patch}")
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return 1
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fi
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local template="${patch%%.patchtt*}.tt2"
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if [ -f "${template}" ] ; then
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log_debug "Found template for the patch: '${template}'"
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else
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log_error "Missing template for patch '${patch}'"
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bad_patches+=("${patch}")
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return 1
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fi
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local customtt="${patch//.patchtt/.customtt}"
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if [ -f "${customtt}" ] ; then
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log_debug "Overwriting customtt '${customtt}'"
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else
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log_debug "Not found customtt for the patch: '${customtt}'"
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fi
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}
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patch_apply() {
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local patch="$1"
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local apply="${2:-false}"
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local template="${patch%%.patchtt*}.tt2"
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local customtt="${patch//.patchtt/.customtt}"
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local patch_output
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patch_output=$(mktemp)
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local patch_opts=()
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patch_opts+=(--input="${patch}")
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patch_opts+=(--prefix=/dev/null) # do not produce .orig backup files
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patch_opts+=(--reject-file=-) # do not produce .rej file
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if "${apply}" ; then
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patch_opts+=(--output="${customtt}")
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else
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patch_opts+=(--dry-run)
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patch_opts+=(--output=/dev/null)
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fi
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log_debug "Generating customtt '${customtt}' from '${patch}' (apply=${apply})"
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log_debug "Executing: patch ${patch_opts[*]} ${template}"
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if patch "${patch_opts[@]}" "${template}" >"${patch_output}" 2>&1 ; then
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if "${apply}" ; then
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log_info "Successfully created '${customtt}'"
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else
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log_debug "Patch '${patch}' can be applied"
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fi
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else
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log_error "The patch '${patch}' cannot be applied:"
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cat "${patch_output}" >&2
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bad_patches+=("${patch}")
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fi
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rm -f "${patch_output}"
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}
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patch_main() {
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for patch in $(patch_search "$@") ; do
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log_info "Validating patch '${patch}'"
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patch_validate "${patch}" && patch_apply "${patch}" "false"
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done
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if [ "${#bad_patches[@]}" != "0" ] ; then
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log_debug "Aborted here due to failed patch validation above"
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return
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fi
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for patch in $(patch_search "$@") ; do
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log_info "Applying patch '${patch}'"
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patch_apply "${patch}" "true"
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done
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}
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## }}}
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if [ "${1:-}" = "--help" ]; then
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patch_help
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exit 0
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fi
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declare -a bad_patches=()
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patch_main "$@"
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if [ "${#bad_patches[@]}" = "0" ] ; then
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log_info "Patch operation has finished successfully."
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else
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log_error "Some operations above finished with an error for the patch(es):"
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bad_patches_unique=($(echo "${bad_patches[@]}" | tr ' ' '\n' | sort -u))
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printf '\t%s\n' "${bad_patches_unique[@]}"
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RC=1
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fi
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exit "${RC:-0}"
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## END OF FILE #################################################################
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