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86 lines
2.2 KiB
86 lines
2.2 KiB
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package chartutil
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import (
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"github.com/gobwas/glob"
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"github.com/golang/protobuf/ptypes/any"
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)
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// Files is a map of files in a chart that can be accessed from a template.
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type Files map[string][]byte
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// NewFiles creates a new Files from chart files.
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// Given an []*any.Any (the format for files in a chart.Chart), extract a map of files.
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func NewFiles(from []*any.Any) Files {
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files := map[string][]byte{}
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if from != nil {
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for _, f := range from {
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files[f.TypeUrl] = f.Value
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}
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}
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return files
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}
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// GetBytes gets a file by path.
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//
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// The returned data is raw. In a template context, this is identical to calling
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// {{index .Files $path}}.
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//
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// This is intended to be accessed from within a template, so a missed key returns
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// an empty []byte.
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func (f Files) GetBytes(name string) []byte {
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v, ok := f[name]
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if !ok {
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return []byte{}
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}
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return v
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}
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// Get returns a string representation of the given file.
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//
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// Fetch the contents of a file as a string. It is designed to be called in a
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// template.
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//
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// {{.Files.Get "foo"}}
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func (f Files) Get(name string) string {
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return string(f.GetBytes(name))
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}
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// Glob takes a glob pattern and returns another files object only containing
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// matched files.
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//
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// This is designed to be called from a template.
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//
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// {{ range $name, $content := .Files.Glob("foo/**") }}
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// {{ $name }}: |
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// {{ .Files.Get($name) | indent 4 }}{{ end }}
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func (f Files) Glob(pattern string) Files {
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g, err := glob.Compile(pattern, '/')
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if err != nil {
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g, _ = glob.Compile("**")
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}
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nf := NewFiles(nil)
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for name, contents := range f {
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if g.Match(name) {
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nf[name] = contents
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}
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}
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return nf
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}
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