125 lines
3.4 KiB
Go
125 lines
3.4 KiB
Go
/*
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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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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"k8s.io/helm/pkg/proto/hapi/chart"
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)
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const (
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// ChartfileName is the default Chart file name.
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ChartfileName = "Chart.yaml"
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// ValuesfileName is the default values file name.
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ValuesfileName = "values.yaml"
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// TemplatesDir is the relative directory name for templates.
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TemplatesDir = "templates"
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// ChartsDir is the relative directory name for charts dependencies.
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ChartsDir = "charts"
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// IgnorefileName is the name of the Helm ignore file.
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IgnorefileName = ".helmignore"
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)
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const defaultValues = `# Default values for %s.
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# This is a YAML-formatted file.
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# Declare name/value pairs to be passed into your templates.
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# name: value
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`
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const defaultIgnore = `# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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`
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// Create creates a new chart in a directory.
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//
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// Inside of dir, this will create a directory based on the name of
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// chartfile.Name. It will then write the Chart.yaml into this directory and
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// create the (empty) appropriate directories.
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//
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// The returned string will point to the newly created directory. It will be
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// an absolute path, even if the provided base directory was relative.
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//
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// If dir does not exist, this will return an error.
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// If Chart.yaml or any directories cannot be created, this will return an
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// error. In such a case, this will attempt to clean up by removing the
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// new chart directory.
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func Create(chartfile *chart.Metadata, dir string) (string, error) {
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path, err := filepath.Abs(dir)
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if err != nil {
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return path, err
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}
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if fi, err := os.Stat(path); err != nil {
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return path, err
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} else if !fi.IsDir() {
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return path, fmt.Errorf("no such directory %s", path)
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}
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n := chartfile.Name
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cdir := filepath.Join(path, n)
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if fi, err := os.Stat(cdir); err == nil && !fi.IsDir() {
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return cdir, fmt.Errorf("file %s already exists and is not a directory", cdir)
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}
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if err := os.MkdirAll(cdir, 0755); err != nil {
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return cdir, err
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}
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if err := SaveChartfile(filepath.Join(cdir, ChartfileName), chartfile); err != nil {
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return cdir, err
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}
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val := []byte(fmt.Sprintf(defaultValues, chartfile.Name))
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if err := ioutil.WriteFile(filepath.Join(cdir, ValuesfileName), val, 0644); err != nil {
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return cdir, err
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}
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val = []byte(defaultIgnore)
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if err := ioutil.WriteFile(filepath.Join(cdir, IgnorefileName), val, 0644); err != nil {
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return cdir, err
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}
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for _, d := range []string{TemplatesDir, ChartsDir} {
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if err := os.MkdirAll(filepath.Join(cdir, d), 0755); err != nil {
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return cdir, err
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}
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}
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return cdir, nil
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}
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