5bff12354d
The BuildKit dockerignore package was migrated to the patternmatcher repository / module. This patch updates our uses of the BuildKit package with its new location. A small local change was made to keep the format of the existing error message, because the "ignorefile" package is slightly more agnostic in that respect and doesn't include ".dockerignore" in the error message. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
package build
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/moby/patternmatcher"
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"github.com/moby/patternmatcher/ignorefile"
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)
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// ReadDockerignore reads the .dockerignore file in the context directory and
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// returns the list of paths to exclude
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func ReadDockerignore(contextDir string) ([]string, error) {
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var excludes []string
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f, err := os.Open(filepath.Join(contextDir, ".dockerignore"))
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switch {
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case os.IsNotExist(err):
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return excludes, nil
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case err != nil:
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return nil, err
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}
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defer f.Close()
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patterns, err := ignorefile.ReadAll(f)
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if err != nil {
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return nil, fmt.Errorf("error reading .dockerignore: %w", err)
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}
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return patterns, nil
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}
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// TrimBuildFilesFromExcludes removes the named Dockerfile and .dockerignore from
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// the list of excluded files. The daemon will remove them from the final context
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// but they must be in available in the context when passed to the API.
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func TrimBuildFilesFromExcludes(excludes []string, dockerfile string, dockerfileFromStdin bool) []string {
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if keep, _ := patternmatcher.Matches(".dockerignore", excludes); keep {
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excludes = append(excludes, "!.dockerignore")
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}
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// canonicalize dockerfile name to be platform-independent.
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dockerfile = filepath.ToSlash(dockerfile)
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if keep, _ := patternmatcher.Matches(dockerfile, excludes); keep && !dockerfileFromStdin {
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excludes = append(excludes, "!"+dockerfile)
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}
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return excludes
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}
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