wehub-resource-sync
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package query
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import (
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"fmt"
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"regexp"
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"strings"
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)
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// Excluder allows us to support different methods of excluding in the future.
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type Excluder interface {
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shouldExclude(path string) bool
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}
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// regexpExclude uses regular expressions to tell if a file/path should be
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// excluded.
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type regexpExclude struct {
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exclusions []string
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regex *regexp.Regexp
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}
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// ShouldExclude will return a boolean denoting whether or not the path should
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// be excluded based on the given slice of exclusions.
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func (r *regexpExclude) shouldExclude(path string) bool {
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if r.regex == nil {
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r.buildRegex()
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}
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if r.regex.String() == "" {
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return false
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}
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return r.regex.MatchString(path)
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}
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// buildRegex builds the regular expression for this RegexpExclude.
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func (r *regexpExclude) buildRegex() {
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exclusions := make([]string, len(r.exclusions))
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for i, exclusion := range r.exclusions {
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// Wrap exclusion in ^ and (/.*)?$ AFTER trimming trailing slashes and
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// escaping all dots.
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exclusions[i] = fmt.Sprintf("^%s(/.*)?$",
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strings.Replace(strings.TrimRight(exclusion, "/"), ".", "\\.", -1))
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}
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r.regex = regexp.MustCompile(strings.Join(exclusions, "|"))
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}
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