54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
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package accessctl
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import (
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"fmt"
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"github.com/bmatcuk/doublestar"
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)
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// AccessControl represents an access control object being defined in the
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// Config.
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type AccessControl struct {
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Pattern string `yaml:"pattern"`
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Condition Condition `yaml:"condition"`
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}
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// ErrNoApplicableAccessControls is returned from ApplicableAccessControls when
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// a changed path has no applicable AccessControls which match it.
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type ErrNoApplicableAccessControls struct {
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Path string
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}
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func (err ErrNoApplicableAccessControls) Error() string {
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return fmt.Sprintf("no AccessControls which apply to changed file %q", err.Path)
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}
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// ApplicableAccessControls returns a subset of the given AccessControls which
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// are applicable to the given file paths (ie those whose Conditions must be met
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// in order for the changes to go through.
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func ApplicableAccessControls(accessControls []AccessControl, filesChanged []string) ([]AccessControl, error) {
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applicableSet := map[AccessControl]struct{}{}
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for _, path := range filesChanged {
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var any bool
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for _, ac := range accessControls {
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if ok, err := doublestar.PathMatch(ac.Pattern, path); err != nil {
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return nil, fmt.Errorf("error matching path %q to patterrn %q: %w",
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path, ac.Pattern, err)
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} else if ok {
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applicableSet[ac] = struct{}{}
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any = true
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break
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}
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}
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if !any {
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return nil, ErrNoApplicableAccessControls{Path: path}
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}
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}
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applicable := make([]AccessControl, 0, len(applicableSet))
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for ac := range applicableSet {
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applicable = append(applicable, ac)
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}
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return applicable, nil
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}
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