working commit

vendor/github.com/monochromegane/go-gitignore/pattern.go

@@ -0,0 +1,69 @@
+package gitignore
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+var Separator = string(filepath.Separator)
+
+type pattern struct {
+	hasRootPrefix     bool
+	hasDirSuffix      bool
+	pathDepth         int
+	matcher           pathMatcher
+	onlyEqualizedPath bool
+}
+
+func newPattern(path string) pattern {
+	hasRootPrefix := path[0] == '/'
+	hasDirSuffix := path[len(path)-1] == '/'
+
+	var pathDepth int
+	if !hasRootPrefix {
+		pathDepth = strings.Count(path, "/")
+	}
+
+	var matcher pathMatcher
+	matchingPath := strings.Trim(path, "/")
+	if hasMeta(path) {
+		matcher = filepathMatcher{path: matchingPath}
+	} else {
+		matcher = simpleMatcher{path: matchingPath}
+	}
+
+	return pattern{
+		hasRootPrefix: hasRootPrefix,
+		hasDirSuffix:  hasDirSuffix,
+		pathDepth:     pathDepth,
+		matcher:       matcher,
+	}
+}
+
+func newPatternForEqualizedPath(path string) pattern {
+	pattern := newPattern(path)
+	pattern.onlyEqualizedPath = true
+	return pattern
+}
+
+func (p pattern) match(path string, isDir bool) bool {
+
+	if p.hasDirSuffix && !isDir {
+		return false
+	}
+
+	var targetPath string
+	if p.hasRootPrefix || p.onlyEqualizedPath {
+		// absolute pattern or only equalized path mode
+		targetPath = path
+	} else {
+		// relative pattern
+		targetPath = p.equalizeDepth(path)
+	}
+	return p.matcher.match(targetPath)
+}
+
+func (p pattern) equalizeDepth(path string) string {
+	equalizedPath, _ := cutLastN(path, p.pathDepth+1)
+	return equalizedPath
+}