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87 lines
2.1 KiB
87 lines
2.1 KiB
package zones |
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import ( |
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"bytes" |
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"fmt" |
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"io" |
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"os" |
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"path/filepath" |
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fs "github.com/hack-pad/hackpadfs" |
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) |
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// OpenFile opens a file on the machine's config directory with the specified flags |
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func (m *Machine) OpenFile(name string, flags int, args ...any) (fs.File, error) { |
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base := m.zone.zones.dir |
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fullName := m.getFilename(name, args...) |
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return fs.OpenFile(base, fullName, flags, 0644) |
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} |
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// CreateTruncFile creates or truncates a file on the machine's config directory |
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func (m *Machine) CreateTruncFile(name string, args ...any) (io.WriteCloser, error) { |
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return m.openWriter(name, os.O_CREATE|os.O_TRUNC, args...) |
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} |
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// CreateFile creates a file on the machine's config directory |
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func (m *Machine) CreateFile(name string, args ...any) (io.WriteCloser, error) { |
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return m.openWriter(name, os.O_CREATE, args...) |
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} |
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func (m *Machine) openWriter(name string, flags int, args ...any) (io.WriteCloser, error) { |
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f, err := m.OpenFile(name, os.O_WRONLY|flags, args...) |
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if err != nil { |
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return nil, err |
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} |
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return f.(io.WriteCloser), nil |
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} |
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// RemoveFile deletes a file from the machine's config directory |
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func (m *Machine) RemoveFile(name string, args ...any) error { |
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base := m.zone.zones.dir |
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fullName := m.getFilename(name, args...) |
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err := fs.Remove(base, fullName) |
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switch { |
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case os.IsNotExist(err): |
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return nil |
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default: |
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return err |
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} |
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} |
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// ReadFile reads a file from the machine's config directory |
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func (m *Machine) ReadFile(name string, args ...any) ([]byte, error) { |
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base := m.zone.zones.dir |
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fullName := m.getFilename(name, args...) |
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return fs.ReadFile(base, fullName) |
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} |
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// WriteStringFile writes the given content to a file on the machine's config directory |
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func (m *Machine) WriteStringFile(value string, name string, args ...any) error { |
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f, err := m.CreateTruncFile(name, args...) |
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if err != nil { |
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return err |
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} |
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defer f.Close() |
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buf := bytes.NewBufferString(value) |
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_, err = buf.WriteTo(f) |
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return err |
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} |
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func (m *Machine) getFilename(name string, args ...any) string { |
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if len(args) > 0 { |
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name = fmt.Sprintf(name, args...) |
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} |
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s := []string{ |
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m.zone.Name, |
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m.Name, |
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name, |
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} |
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return filepath.Join(s...) |
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}
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