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Add support for .sourceignore and ignore string
If implemented the generator will be able to take into account a `.sourceignore` in the base directory and a provided `ignore` string while generating/updating the kustomization file before build. Signed-off-by: Soule BA <bah.soule@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| /* | ||
| Copyright 2023 The Flux 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. | ||
| */ | ||
|
|
||
| package kustomize | ||
|
|
||
| import ( | ||
| "net/url" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "github.com/fluxcd/go-git/v5/plumbing/format/gitignore" | ||
| "github.com/fluxcd/pkg/sourceignore" | ||
| kustypes "sigs.k8s.io/kustomize/api/types" | ||
| ) | ||
|
|
||
| const ( | ||
| crds = "crds" | ||
| resources = "resources" | ||
| components = "components" | ||
| ) | ||
|
|
||
| // filter must return true if a file should not be included in the archive after inspecting the given path | ||
| // and/or os.FileInfo. | ||
| type filter func(p string, fi os.FileInfo) bool | ||
|
|
||
| func ignoreFileFilter(ps []gitignore.Pattern, domain []string) filter { | ||
| matcher := sourceignore.NewDefaultMatcher(ps, domain) | ||
| return func(p string, fi os.FileInfo) bool { | ||
| return matcher.Match(strings.Split(p, string(filepath.Separator)), fi.IsDir()) | ||
| } | ||
| } | ||
|
|
||
| func filterKsWithIgnoreFiles(ks *kustypes.Kustomization, dirPath string, ignore string) error { | ||
| path, err := filepath.Abs(dirPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| ignoreDomain := strings.Split(path, string(filepath.Separator)) | ||
| ps, err := sourceignore.LoadIgnorePatterns(path, ignoreDomain) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if ignore != "" { | ||
| ps = append(ps, sourceignore.ReadPatterns(strings.NewReader(ignore), ignoreDomain)...) | ||
| } | ||
|
|
||
| // filter resources first | ||
| err = filterSlice(ks, path, &ks.Resources, resources, ignoreFileFilter(ps, ignoreDomain)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // filter components second | ||
| err = filterSlice(ks, path, &ks.Components, components, ignoreFileFilter(ps, ignoreDomain)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // filter crds third | ||
| err = filterSlice(ks, path, &ks.Crds, crds, ignoreFileFilter(ps, ignoreDomain)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func filterSlice(ks *kustypes.Kustomization, path string, s *[]string, t string, filter filter) error { | ||
| for i, res := range *s { | ||
| // check if we have a url and skip it | ||
| // this is not needed for crds as they are not allowed to be urls | ||
| if t != crds { | ||
| if u, err := url.ParseRequestURI(res); err == nil && u.Scheme != "" { | ||
| continue | ||
| } | ||
| } | ||
| f := filepath.Join(path, res) | ||
| info, err := os.Lstat(f) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if filter(f, info) { | ||
| if i < len(*s)-1 { | ||
| *s = append((*s)[:i], (*s)[i+1:]...) | ||
| } else { | ||
| *s = (*s)[:i] | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } |
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