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Preserve trailing newline setting when adding to gitignore

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This commit is contained in:
Luka Markušić
2022-06-17 14:45:37 +02:00
parent 69f4292fe3
commit 86d5654d20
1 changed files with 21 additions and 2 deletions
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23
pkg/commands/oscommands/os.go
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@@ -109,13 +109,32 @@ func (c *OSCommand) Quote(message string) string {
// AppendLineToFile adds a new line in file // AppendLineToFile adds a new line in file
func (c *OSCommand) AppendLineToFile(filename, line string) error { func (c *OSCommand) AppendLineToFile(filename, line string) error {
c.LogCommand(fmt.Sprintf("Appending '%s' to file '%s'", line, filename), false) c.LogCommand(fmt.Sprintf("Appending '%s' to file '%s'", line, filename), false)
f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0o600) f, err := os.OpenFile(filename, os.O_APPEND|os.O_RDWR|os.O_CREATE, 0o600)
if err != nil { if err != nil {
return utils.WrapError(err) return utils.WrapError(err)
} }
defer f.Close() defer f.Close()
_, err = f.WriteString("\n" + line) info, err := os.Stat(filename)
if err != nil {
return utils.WrapError(err)
}
// read last char
buf := make([]byte, 1)
if _, err := f.ReadAt(buf, info.Size()-1); err != nil {
return utils.WrapError(err)
}
// if the last byte of the file is not a newline, add it
if []byte("\n")[0] != buf[0] {
_, err = f.WriteString("\n")
}
if err == nil {
_, err = f.WriteString(line + "\n")
}
if err != nil { if err != nil {
return utils.WrapError(err) return utils.WrapError(err)
} }