Carlos Florêncio
42 lines
1005 B
Go
42 lines
1005 B
Go
//go:build linux || darwin
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package lifecycle
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import (
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"fmt"
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"os"
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"path/filepath"
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"golang.org/x/sys/unix"
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)
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func openGitExcludeNoFollow(gitDir string) (*os.File, error) {
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gitFD, err := unix.Open(gitDir, unix.O_RDONLY|unix.O_DIRECTORY|unix.O_CLOEXEC|unix.O_NOFOLLOW, 0)
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if err != nil {
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return nil, fmt.Errorf("open git directory: %w", err)
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}
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defer func() { _ = unix.Close(gitFD) }()
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infoFD, err := unix.Openat(gitFD, "info", unix.O_RDONLY|unix.O_DIRECTORY|unix.O_CLOEXEC|unix.O_NOFOLLOW, 0)
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if err != nil {
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return nil, fmt.Errorf("open git info directory: %w", err)
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}
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defer func() { _ = unix.Close(infoFD) }()
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fd, err := unix.Openat(
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infoFD,
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"exclude",
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unix.O_RDWR|unix.O_APPEND|unix.O_CREAT|unix.O_CLOEXEC|unix.O_NOFOLLOW,
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0644,
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)
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if err != nil {
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return nil, err
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}
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file := os.NewFile(uintptr(fd), filepath.Join(gitDir, "info", "exclude"))
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if file == nil {
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_ = unix.Close(fd)
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return nil, fmt.Errorf("create file from git exclude descriptor")
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}
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return file, nil
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}
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