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// Copyright 2015 The Gogs Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"crypto/sha1"
"encoding/hex"
"fmt"
"io"
"strconv"
"strings"
"sync"
"code.gitea.io/gitea/modules/util"
)
// 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
}
// 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))
}
func SplitCommitTitleBody(commitMessage string, titleRuneLimit int) (title, body string) {
title, body, _ = strings.Cut(commitMessage, "\n")
title, title2 := util.EllipsisTruncateRunes(title, titleRuneLimit)
if title2 != "" {
if body == "" {
body = title2
} else {
body = title2 + "\n" + body
}
}
return title, body
}
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