mirror of https://github.com/Hilbis/Hilbish
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
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//go:build !windows && !plan9
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package readline
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import (
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"os"
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"os/exec"
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)
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const defaultEditor = "vi"
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// StartEditorWithBuffer - Enables a consumer of this console application to
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// open an arbitrary buffer into the system editor. Currently only implemnted
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// on *Nix systems. The modified buffer is returned when the editor quits, and
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// depending on the actions taken by the user within it (eg: x or q! in Vim)
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// The filename parameter can be used to pass a specific filename.ext pattern,
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// which might be useful if the editor has builtin filetype plugin functionality.
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func (rl *Instance) StartEditorWithBuffer(multiline []rune, filename string) ([]rune, error) {
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name, err := rl.writeTempFile([]byte(string(multiline)), filename)
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if err != nil {
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return multiline, err
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}
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editor := os.Getenv("EDITOR")
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// default editor if $EDITOR not set
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if editor == "" {
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editor = defaultEditor
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}
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cmd := exec.Command(editor, name)
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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if err := cmd.Start(); err != nil {
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return multiline, err
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}
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if err := cmd.Wait(); err != nil {
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return multiline, err
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}
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b, err := readTempFile(name)
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return []rune(string(b)), err
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}
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