0
0
mirror of https://github.com/go-gitea/gitea.git synced 2024-12-29 02:13:41 +01:00
gitea/modules/git/utils.go
Lunny Xiao 33850a83fe
Fix submodule parsing (#32571)
Fix #32568, parse `.gitmodules` correctly

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2024-11-20 19:26:12 +00:00

137 lines
3.1 KiB
Go

// Copyright 2015 The Gogs Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"crypto/sha1"
"encoding/hex"
"fmt"
"io"
"os"
"strconv"
"strings"
"sync"
)
// ObjectCache provides thread-safe cache operations.
type ObjectCache[T any] struct {
lock sync.RWMutex
cache map[string]T
}
func newObjectCache[T any]() *ObjectCache[T] {
return &ObjectCache[T]{cache: make(map[string]T, 10)}
}
// Set adds obj to cache
func (oc *ObjectCache[T]) Set(id string, obj T) {
oc.lock.Lock()
defer oc.lock.Unlock()
oc.cache[id] = obj
}
// Get gets cached obj by id
func (oc *ObjectCache[T]) Get(id string) (T, bool) {
oc.lock.RLock()
defer oc.lock.RUnlock()
obj, has := oc.cache[id]
return obj, has
}
// isDir returns true if given path is a directory,
// or returns false when it's a file or does not exist.
func isDir(dir string) bool {
f, e := os.Stat(dir)
if e != nil {
return false
}
return f.IsDir()
}
// isFile returns true if given path is a file,
// or returns false when it's a directory or does not exist.
func isFile(filePath string) bool {
f, e := os.Stat(filePath)
if e != nil {
return false
}
return !f.IsDir()
}
// isExist checks whether a file or directory exists.
// It returns false when the file or directory does not exist.
func isExist(path string) bool {
_, err := os.Stat(path)
return err == nil || os.IsExist(err)
}
// ConcatenateError concatenats an error with stderr string
func ConcatenateError(err error, stderr string) error {
if len(stderr) == 0 {
return err
}
return fmt.Errorf("%w - %s", err, stderr)
}
// ParseBool returns the boolean value represented by the string as per git's git_config_bool
// true will be returned for the result if the string is empty, but valid will be false.
// "true", "yes", "on" are all true, true
// "false", "no", "off" are all false, true
// 0 is false, true
// Any other integer is true, true
// Anything else will return false, false
func ParseBool(value string) (result, valid bool) {
// Empty strings are true but invalid
if len(value) == 0 {
return true, false
}
// These are the git expected true and false values
if strings.EqualFold(value, "true") || strings.EqualFold(value, "yes") || strings.EqualFold(value, "on") {
return true, true
}
if strings.EqualFold(value, "false") || strings.EqualFold(value, "no") || strings.EqualFold(value, "off") {
return false, true
}
// Try a number
intValue, err := strconv.ParseInt(value, 10, 32)
if err != nil {
return false, false
}
return intValue != 0, true
}
// LimitedReaderCloser is a limited reader closer
type LimitedReaderCloser struct {
R io.Reader
C io.Closer
N int64
}
// Read implements io.Reader
func (l *LimitedReaderCloser) Read(p []byte) (n int, err error) {
if l.N <= 0 {
_ = l.C.Close()
return 0, io.EOF
}
if int64(len(p)) > l.N {
p = p[0:l.N]
}
n, err = l.R.Read(p)
l.N -= int64(n)
return n, err
}
// Close implements io.Closer
func (l *LimitedReaderCloser) Close() error {
return l.C.Close()
}
func HashFilePathForWebUI(s string) string {
h := sha1.New()
_, _ = h.Write([]byte(s))
return hex.EncodeToString(h.Sum(nil))
}