| #!/usr/bin/env bash |
| |
| # Copyright 2014 The Kubernetes Authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # This script finds, caches, and prints a list of all directories that hold |
| # *.go files. If any directory is newer than the cache, re-find everything and |
| # update the cache. Otherwise use the cached file. |
| |
| set -o errexit |
| set -o nounset |
| set -o pipefail |
| |
| if [[ -z "${1:-}" ]]; then |
| echo "usage: $0 <cache-file>" |
| exit 1 |
| fi |
| CACHE="$1"; shift |
| |
| trap "rm -f '${CACHE}'" HUP INT TERM ERR |
| |
| # This is a partial 'find' command. The caller is expected to pass the |
| # remaining arguments. |
| # |
| # Example: |
| # kfind -type f -name foobar.go |
| function kfind() { |
| # We want to include the "special" vendor directories which are actually |
| # part of the Kubernetes source tree (./staging/*) but we need them to be |
| # named as their ./vendor/* equivalents. Also, we do not want all of |
| # ./vendor or even all of ./vendor/k8s.io. |
| find -H . \ |
| \( \ |
| -not \( \ |
| \( \ |
| -path ./vendor -o \ |
| -path ./_\* -o \ |
| -path ./.\* -o \ |
| -path ./docs \ |
| \) -prune \ |
| \) \ |
| \) \ |
| "$@" \ |
| | sed 's|^./staging/src|vendor|' |
| } |
| |
| NEED_FIND=true |
| # It's *significantly* faster to check whether any directories are newer than |
| # the cache than to blindly rebuild it. |
| if [[ -f "${CACHE}" ]]; then |
| N=$(kfind -type d -newer "${CACHE}" -print -quit | wc -l) |
| [[ "${N}" == 0 ]] && NEED_FIND=false |
| fi |
| mkdir -p $(dirname "${CACHE}") |
| if $("${NEED_FIND}"); then |
| kfind -type f -name \*.go \ |
| | sed 's|/[^/]*$||' \ |
| | sed 's|^./||' \ |
| | LC_ALL=C sort -u \ |
| > "${CACHE}" |
| fi |
| cat "${CACHE}" |