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