88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
/*
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Copyright 2021 The Flux authors
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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 sourceignore
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import (
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"bufio"
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"bytes"
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"io"
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"os"
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"path/filepath"
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"strings"
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"github.com/go-git/go-git/v5/plumbing/format/gitignore"
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)
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const (
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ExcludeFile = ".sourceignore"
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ExcludeVCS = ".git/,.gitignore,.gitmodules,.gitattributes"
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ExcludeExt = "*.jpg,*.jpeg,*.gif,*.png,*.wmv,*.flv,*.tar.gz,*.zip"
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ExcludeCI = ".github/,.circleci/,.travis.yml,.gitlab-ci.yml,appveyor.yml,.drone.yml,cloudbuild.yaml,codeship-services.yml,codeship-steps.yml"
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ExcludeExtra = "**/.goreleaser.yml,**/.sops.yaml,**/.flux.yaml"
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)
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// NewMatcher returns a gitignore.Matcher for the given gitignore.Pattern
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// slice. It mainly exists to compliment the API.
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func NewMatcher(ps []gitignore.Pattern) gitignore.Matcher {
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return gitignore.NewMatcher(ps)
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}
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// GetPatterns collects ignore patterns from the given reader and
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// returns them as a gitignore.Pattern slice.
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func GetPatterns(reader io.Reader, path []string) []gitignore.Pattern {
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var ps []gitignore.Pattern
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scanner := bufio.NewScanner(reader)
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for scanner.Scan() {
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s := scanner.Text()
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if !strings.HasPrefix(s, "#") && len(strings.TrimSpace(s)) > 0 {
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ps = append(ps, gitignore.ParsePattern(s, path))
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}
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}
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return ps
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}
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// LoadExcludePatterns loads the excluded patterns from .sourceignore or other
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// sources and returns the gitignore.Pattern slice.
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func LoadExcludePatterns(dir string, ignore *string) ([]gitignore.Pattern, error) {
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path := strings.Split(dir, "/")
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var ps []gitignore.Pattern
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for _, p := range strings.Split(ExcludeVCS, ",") {
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ps = append(ps, gitignore.ParsePattern(p, path))
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}
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if ignore == nil {
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all := strings.Join([]string{ExcludeExt, ExcludeCI, ExcludeExtra}, ",")
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for _, p := range strings.Split(all, ",") {
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ps = append(ps, gitignore.ParsePattern(p, path))
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}
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if f, err := os.Open(filepath.Join(dir, ExcludeFile)); err == nil {
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defer f.Close()
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ps = append(ps, GetPatterns(f, path)...)
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} else if !os.IsNotExist(err) {
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return nil, err
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}
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} else {
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ps = append(ps, GetPatterns(bytes.NewBufferString(*ignore), path)...)
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}
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return ps, nil
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}
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