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Fix atomic write not working when file does not exist

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This commit is contained in:
Kovid Goyal 2023-02-15 10:46:47 +05:30
parent 7223fdaa38
commit 73a3366d53
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 8 additions and 2 deletions
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10
tools/utils/atomic-write.go
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@ -3,6 +3,7 @@
package utils package utils
import ( import (
"errors"
"fmt" "fmt"
"io/fs" "io/fs"
"os" "os"
@ -12,12 +13,17 @@ import (
var _ = fmt.Print var _ = fmt.Print
func AtomicWriteFile(path string, data []byte, perm os.FileMode) (err error) { func AtomicWriteFile(path string, data []byte, perm os.FileMode) (err error) {
path, err = filepath.EvalSymlinks(path) npath, err := filepath.EvalSymlinks(path)
if errors.Is(err, fs.ErrNotExist) {
err = nil
npath = path
}
if err == nil { if err == nil {
path = npath
path, err = filepath.Abs(path) path, err = filepath.Abs(path)
if err == nil { if err == nil {
var f *os.File var f *os.File
f, err = os.CreateTemp(filepath.Dir(path), filepath.Base(path)) f, err = os.CreateTemp(filepath.Dir(path), filepath.Base(path)+".atomic-write-")
if err == nil { if err == nil {
removed := false removed := false
defer func() { defer func() {