chore: vendor go dependencies

4 files changed, 754 insertions, 0 deletions

diff --git a/vendor/github.com/moby/patternmatcher/LICENSE b/vendor/github.com/moby/patternmatcher/LICENSE
new file mode 100644
index 0000000..6d8d58f
--- /dev/null
+++ b/vendor/github.com/moby/patternmatcher/LICENSE
@@ -0,0 +1,191 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        https://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2013-2018 Docker, Inc.
+
+   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
+
+       https://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.
diff --git a/vendor/github.com/moby/patternmatcher/NOTICE b/vendor/github.com/moby/patternmatcher/NOTICE
new file mode 100644
index 0000000..e515464
--- /dev/null
+++ b/vendor/github.com/moby/patternmatcher/NOTICE
@@ -0,0 +1,16 @@
+Docker
+Copyright 2012-2017 Docker, Inc.
+
+This product includes software developed at Docker, Inc. (https://www.docker.com).
+
+The following is courtesy of our legal counsel:
+
+
+Use and transfer of Docker may be subject to certain restrictions by the
+United States and other governments.
+It is your responsibility to ensure that your use and/or transfer does not
+violate applicable laws.
+
+For more information, please see https://www.bis.doc.gov
+
+See also https://www.apache.org/dev/crypto.html and/or seek legal counsel.
diff --git a/vendor/github.com/moby/patternmatcher/ignorefile/ignorefile.go b/vendor/github.com/moby/patternmatcher/ignorefile/ignorefile.go
new file mode 100644
index 0000000..94ea5a0
--- /dev/null
+++ b/vendor/github.com/moby/patternmatcher/ignorefile/ignorefile.go
@@ -0,0 +1,73 @@
+package ignorefile
+
+import (
+	"bufio"
+	"bytes"
+	"io"
+	"path/filepath"
+	"strings"
+)
+
+// ReadAll reads an ignore file from a reader and returns the list of file
+// patterns to ignore, applying the following rules:
+//
+//   - An UTF8 BOM header (if present) is stripped.
+//   - Lines starting with "#" are considered comments and are skipped.
+//
+// For remaining lines:
+//
+//   - Leading and trailing whitespace is removed from each ignore pattern.
+//   - It uses [filepath.Clean] to get the shortest/cleanest path for
+//     ignore patterns.
+//   - Leading forward-slashes ("/") are removed from ignore patterns,
+//     so "/some/path" and "some/path" are considered equivalent.
+func ReadAll(reader io.Reader) ([]string, error) {
+	if reader == nil {
+		return nil, nil
+	}
+
+	var excludes []string
+	currentLine := 0
+	utf8bom := []byte{0xEF, 0xBB, 0xBF}
+
+	scanner := bufio.NewScanner(reader)
+	for scanner.Scan() {
+		scannedBytes := scanner.Bytes()
+		// We trim UTF8 BOM
+		if currentLine == 0 {
+			scannedBytes = bytes.TrimPrefix(scannedBytes, utf8bom)
+		}
+		pattern := string(scannedBytes)
+		currentLine++
+		// Lines starting with # (comments) are ignored before processing
+		if strings.HasPrefix(pattern, "#") {
+			continue
+		}
+		pattern = strings.TrimSpace(pattern)
+		if pattern == "" {
+			continue
+		}
+		// normalize absolute paths to paths relative to the context
+		// (taking care of '!' prefix)
+		invert := pattern[0] == '!'
+		if invert {
+			pattern = strings.TrimSpace(pattern[1:])
+		}
+		if len(pattern) > 0 {
+			pattern = filepath.Clean(pattern)
+			pattern = filepath.ToSlash(pattern)
+			if len(pattern) > 1 && pattern[0] == '/' {
+				pattern = pattern[1:]
+			}
+		}
+		if invert {
+			pattern = "!" + pattern
+		}
+
+		excludes = append(excludes, pattern)
+	}
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+	return excludes, nil
+}
diff --git a/vendor/github.com/moby/patternmatcher/patternmatcher.go b/vendor/github.com/moby/patternmatcher/patternmatcher.go
new file mode 100644
index 0000000..37a1a59
--- /dev/null
+++ b/vendor/github.com/moby/patternmatcher/patternmatcher.go
@@ -0,0 +1,474 @@
+package patternmatcher
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"text/scanner"
+	"unicode/utf8"
+)
+
+// escapeBytes is a bitmap used to check whether a character should be escaped when creating the regex.
+var escapeBytes [8]byte
+
+// shouldEscape reports whether a rune should be escaped as part of the regex.
+//
+// This only includes characters that require escaping in regex but are also NOT valid filepath pattern characters.
+// Additionally, '\' is not excluded because there is specific logic to properly handle this, as it's a path separator
+// on Windows.
+//
+// Adapted from regexp::QuoteMeta in go stdlib.
+// See https://cs.opensource.google/go/go/+/refs/tags/go1.17.2:src/regexp/regexp.go;l=703-715;drc=refs%2Ftags%2Fgo1.17.2
+func shouldEscape(b rune) bool {
+	return b < utf8.RuneSelf && escapeBytes[b%8]&(1<<(b/8)) != 0
+}
+
+func init() {
+	for _, b := range []byte(`.+()|{}$`) {
+		escapeBytes[b%8] |= 1 << (b / 8)
+	}
+}
+
+// PatternMatcher allows checking paths against a list of patterns
+type PatternMatcher struct {
+	patterns   []*Pattern
+	exclusions bool
+}
+
+// New creates a new matcher object for specific patterns that can
+// be used later to match against patterns against paths
+func New(patterns []string) (*PatternMatcher, error) {
+	pm := &PatternMatcher{
+		patterns: make([]*Pattern, 0, len(patterns)),
+	}
+	for _, p := range patterns {
+		// Eliminate leading and trailing whitespace.
+		p = strings.TrimSpace(p)
+		if p == "" {
+			continue
+		}
+		p = filepath.Clean(p)
+		newp := &Pattern{}
+		if p[0] == '!' {
+			if len(p) == 1 {
+				return nil, errors.New("illegal exclusion pattern: \"!\"")
+			}
+			newp.exclusion = true
+			p = p[1:]
+			pm.exclusions = true
+		}
+		// Do some syntax checking on the pattern.
+		// filepath's Match() has some really weird rules that are inconsistent
+		// so instead of trying to dup their logic, just call Match() for its
+		// error state and if there is an error in the pattern return it.
+		// If this becomes an issue we can remove this since its really only
+		// needed in the error (syntax) case - which isn't really critical.
+		if _, err := filepath.Match(p, "."); err != nil {
+			return nil, err
+		}
+		newp.cleanedPattern = p
+		newp.dirs = strings.Split(p, string(os.PathSeparator))
+		pm.patterns = append(pm.patterns, newp)
+	}
+	return pm, nil
+}
+
+// Matches returns true if "file" matches any of the patterns
+// and isn't excluded by any of the subsequent patterns.
+//
+// The "file" argument should be a slash-delimited path.
+//
+// Matches is not safe to call concurrently.
+//
+// Deprecated: This implementation is buggy (it only checks a single parent dir
+// against the pattern) and will be removed soon. Use either
+// MatchesOrParentMatches or MatchesUsingParentResults instead.
+func (pm *PatternMatcher) Matches(file string) (bool, error) {
+	matched := false
+	file = filepath.FromSlash(file)
+	parentPath := filepath.Dir(file)
+	parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
+
+	for _, pattern := range pm.patterns {
+		// Skip evaluation if this is an inclusion and the filename
+		// already matched the pattern, or it's an exclusion and it has
+		// not matched the pattern yet.
+		if pattern.exclusion != matched {
+			continue
+		}
+
+		match, err := pattern.match(file)
+		if err != nil {
+			return false, err
+		}
+
+		if !match && parentPath != "." {
+			// Check to see if the pattern matches one of our parent dirs.
+			if len(pattern.dirs) <= len(parentPathDirs) {
+				match, _ = pattern.match(strings.Join(parentPathDirs[:len(pattern.dirs)], string(os.PathSeparator)))
+			}
+		}
+
+		if match {
+			matched = !pattern.exclusion
+		}
+	}
+
+	return matched, nil
+}
+
+// MatchesOrParentMatches returns true if "file" matches any of the patterns
+// and isn't excluded by any of the subsequent patterns.
+//
+// The "file" argument should be a slash-delimited path.
+//
+// Matches is not safe to call concurrently.
+func (pm *PatternMatcher) MatchesOrParentMatches(file string) (bool, error) {
+	matched := false
+	file = filepath.FromSlash(file)
+	parentPath := filepath.Dir(file)
+	parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
+
+	for _, pattern := range pm.patterns {
+		// Skip evaluation if this is an inclusion and the filename
+		// already matched the pattern, or it's an exclusion and it has
+		// not matched the pattern yet.
+		if pattern.exclusion != matched {
+			continue
+		}
+
+		match, err := pattern.match(file)
+		if err != nil {
+			return false, err
+		}
+
+		if !match && parentPath != "." {
+			// Check to see if the pattern matches one of our parent dirs.
+			for i := range parentPathDirs {
+				match, _ = pattern.match(strings.Join(parentPathDirs[:i+1], string(os.PathSeparator)))
+				if match {
+					break
+				}
+			}
+		}
+
+		if match {
+			matched = !pattern.exclusion
+		}
+	}
+
+	return matched, nil
+}
+
+// MatchesUsingParentResult returns true if "file" matches any of the patterns
+// and isn't excluded by any of the subsequent patterns. The functionality is
+// the same as Matches, but as an optimization, the caller keeps track of
+// whether the parent directory matched.
+//
+// The "file" argument should be a slash-delimited path.
+//
+// MatchesUsingParentResult is not safe to call concurrently.
+//
+// Deprecated: this function does behave correctly in some cases (see
+// https://github.com/docker/buildx/issues/850).
+//
+// Use MatchesUsingParentResults instead.
+func (pm *PatternMatcher) MatchesUsingParentResult(file string, parentMatched bool) (bool, error) {
+	matched := parentMatched
+	file = filepath.FromSlash(file)
+
+	for _, pattern := range pm.patterns {
+		// Skip evaluation if this is an inclusion and the filename
+		// already matched the pattern, or it's an exclusion and it has
+		// not matched the pattern yet.
+		if pattern.exclusion != matched {
+			continue
+		}
+
+		match, err := pattern.match(file)
+		if err != nil {
+			return false, err
+		}
+
+		if match {
+			matched = !pattern.exclusion
+		}
+	}
+	return matched, nil
+}
+
+// MatchInfo tracks information about parent dir matches while traversing a
+// filesystem.
+type MatchInfo struct {
+	parentMatched []bool
+}
+
+// MatchesUsingParentResults returns true if "file" matches any of the patterns
+// and isn't excluded by any of the subsequent patterns. The functionality is
+// the same as Matches, but as an optimization, the caller passes in
+// intermediate results from matching the parent directory.
+//
+// The "file" argument should be a slash-delimited path.
+//
+// MatchesUsingParentResults is not safe to call concurrently.
+func (pm *PatternMatcher) MatchesUsingParentResults(file string, parentMatchInfo MatchInfo) (bool, MatchInfo, error) {
+	parentMatched := parentMatchInfo.parentMatched
+	if len(parentMatched) != 0 && len(parentMatched) != len(pm.patterns) {
+		return false, MatchInfo{}, errors.New("wrong number of values in parentMatched")
+	}
+
+	file = filepath.FromSlash(file)
+	matched := false
+
+	matchInfo := MatchInfo{
+		parentMatched: make([]bool, len(pm.patterns)),
+	}
+	for i, pattern := range pm.patterns {
+		match := false
+		// If the parent matched this pattern, we don't need to recheck.
+		if len(parentMatched) != 0 {
+			match = parentMatched[i]
+		}
+
+		if !match {
+			// Skip evaluation if this is an inclusion and the filename
+			// already matched the pattern, or it's an exclusion and it has
+			// not matched the pattern yet.
+			if pattern.exclusion != matched {
+				continue
+			}
+
+			var err error
+			match, err = pattern.match(file)
+			if err != nil {
+				return false, matchInfo, err
+			}
+
+			// If the zero value of MatchInfo was passed in, we don't have
+			// any information about the parent dir's match results, and we
+			// apply the same logic as MatchesOrParentMatches.
+			if !match && len(parentMatched) == 0 {
+				if parentPath := filepath.Dir(file); parentPath != "." {
+					parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
+					// Check to see if the pattern matches one of our parent dirs.
+					for i := range parentPathDirs {
+						match, _ = pattern.match(strings.Join(parentPathDirs[:i+1], string(os.PathSeparator)))
+						if match {
+							break
+						}
+					}
+				}
+			}
+		}
+		matchInfo.parentMatched[i] = match
+
+		if match {
+			matched = !pattern.exclusion
+		}
+	}
+	return matched, matchInfo, nil
+}
+
+// Exclusions returns true if any of the patterns define exclusions
+func (pm *PatternMatcher) Exclusions() bool {
+	return pm.exclusions
+}
+
+// Patterns returns array of active patterns
+func (pm *PatternMatcher) Patterns() []*Pattern {
+	return pm.patterns
+}
+
+// Pattern defines a single regexp used to filter file paths.
+type Pattern struct {
+	matchType      matchType
+	cleanedPattern string
+	dirs           []string
+	regexp         *regexp.Regexp
+	exclusion      bool
+}
+
+type matchType int
+
+const (
+	unknownMatch matchType = iota
+	exactMatch
+	prefixMatch
+	suffixMatch
+	regexpMatch
+)
+
+func (p *Pattern) String() string {
+	return p.cleanedPattern
+}
+
+// Exclusion returns true if this pattern defines exclusion
+func (p *Pattern) Exclusion() bool {
+	return p.exclusion
+}
+
+func (p *Pattern) match(path string) (bool, error) {
+	if p.matchType == unknownMatch {
+		if err := p.compile(string(os.PathSeparator)); err != nil {
+			return false, filepath.ErrBadPattern
+		}
+	}
+
+	switch p.matchType {
+	case exactMatch:
+		return path == p.cleanedPattern, nil
+	case prefixMatch:
+		// strip trailing **
+		return strings.HasPrefix(path, p.cleanedPattern[:len(p.cleanedPattern)-2]), nil
+	case suffixMatch:
+		// strip leading **
+		suffix := p.cleanedPattern[2:]
+		if strings.HasSuffix(path, suffix) {
+			return true, nil
+		}
+		// **/foo matches "foo"
+		return suffix[0] == os.PathSeparator && path == suffix[1:], nil
+	case regexpMatch:
+		return p.regexp.MatchString(path), nil
+	}
+
+	return false, nil
+}
+
+func (p *Pattern) compile(sl string) error {
+	regStr := "^"
+	pattern := p.cleanedPattern
+	// Go through the pattern and convert it to a regexp.
+	// We use a scanner so we can support utf-8 chars.
+	var scan scanner.Scanner
+	scan.Init(strings.NewReader(pattern))
+
+	escSL := sl
+	if sl == `\` {
+		escSL += `\`
+	}
+
+	p.matchType = exactMatch
+	for i := 0; scan.Peek() != scanner.EOF; i++ {
+		ch := scan.Next()
+
+		if ch == '*' {
+			if scan.Peek() == '*' {
+				// is some flavor of "**"
+				scan.Next()
+
+				// Treat **/ as ** so eat the "/"
+				if string(scan.Peek()) == sl {
+					scan.Next()
+				}
+
+				if scan.Peek() == scanner.EOF {
+					// is "**EOF" - to align with .gitignore just accept all
+					if p.matchType == exactMatch {
+						p.matchType = prefixMatch
+					} else {
+						regStr += ".*"
+						p.matchType = regexpMatch
+					}
+				} else {
+					// is "**"
+					// Note that this allows for any # of /'s (even 0) because
+					// the .* will eat everything, even /'s
+					regStr += "(.*" + escSL + ")?"
+					p.matchType = regexpMatch
+				}
+
+				if i == 0 {
+					p.matchType = suffixMatch
+				}
+			} else {
+				// is "*" so map it to anything but "/"
+				regStr += "[^" + escSL + "]*"
+				p.matchType = regexpMatch
+			}
+		} else if ch == '?' {
+			// "?" is any char except "/"
+			regStr += "[^" + escSL + "]"
+			p.matchType = regexpMatch
+		} else if shouldEscape(ch) {
+			// Escape some regexp special chars that have no meaning
+			// in golang's filepath.Match
+			regStr += `\` + string(ch)
+		} else if ch == '\\' {
+			// escape next char. Note that a trailing \ in the pattern
+			// will be left alone (but need to escape it)
+			if sl == `\` {
+				// On windows map "\" to "\\", meaning an escaped backslash,
+				// and then just continue because filepath.Match on
+				// Windows doesn't allow escaping at all
+				regStr += escSL
+				continue
+			}
+			if scan.Peek() != scanner.EOF {
+				regStr += `\` + string(scan.Next())
+				p.matchType = regexpMatch
+			} else {
+				regStr += `\`
+			}
+		} else if ch == '[' || ch == ']' {
+			regStr += string(ch)
+			p.matchType = regexpMatch
+		} else {
+			regStr += string(ch)
+		}
+	}
+
+	if p.matchType != regexpMatch {
+		return nil
+	}
+
+	regStr += "$"
+
+	re, err := regexp.Compile(regStr)
+	if err != nil {
+		return err
+	}
+
+	p.regexp = re
+	p.matchType = regexpMatch
+	return nil
+}
+
+// Matches returns true if file matches any of the patterns
+// and isn't excluded by any of the subsequent patterns.
+//
+// This implementation is buggy (it only checks a single parent dir against the
+// pattern) and will be removed soon. Use MatchesOrParentMatches instead.
+func Matches(file string, patterns []string) (bool, error) {
+	pm, err := New(patterns)
+	if err != nil {
+		return false, err
+	}
+	file = filepath.Clean(file)
+
+	if file == "." {
+		// Don't let them exclude everything, kind of silly.
+		return false, nil
+	}
+
+	return pm.Matches(file)
+}
+
+// MatchesOrParentMatches returns true if file matches any of the patterns
+// and isn't excluded by any of the subsequent patterns.
+func MatchesOrParentMatches(file string, patterns []string) (bool, error) {
+	pm, err := New(patterns)
+	if err != nil {
+		return false, err
+	}
+	file = filepath.Clean(file)
+
+	if file == "." {
+		// Don't let them exclude everything, kind of silly.
+		return false, nil
+	}
+
+	return pm.MatchesOrParentMatches(file)
+}