57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
package install
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import (
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"bytes"
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"fmt"
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"os"
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"path/filepath"
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"text/template"
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)
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// (un)install in fish
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type fish struct {
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configDir string
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}
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func (f fish) Install(cmd, bin string) error {
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completionFile := filepath.Join(f.configDir, "completions", fmt.Sprintf("%s.fish", cmd))
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completeCmd, err := f.cmd(cmd, bin)
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if err != nil {
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return err
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}
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if _, err := os.Stat(completionFile); err == nil {
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return fmt.Errorf("already installed at %s", completionFile)
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}
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return createFile(completionFile, completeCmd)
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}
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func (f fish) Uninstall(cmd, bin string) error {
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completionFile := filepath.Join(f.configDir, "completions", fmt.Sprintf("%s.fish", cmd))
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if _, err := os.Stat(completionFile); err != nil {
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return fmt.Errorf("does not installed in %s", f.configDir)
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}
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return os.Remove(completionFile)
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}
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func (f fish) cmd(cmd, bin string) (string, error) {
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var buf bytes.Buffer
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params := struct{ Cmd, Bin string }{cmd, bin}
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tmpl := template.Must(template.New("cmd").Parse(`
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function __complete_{{.Cmd}}
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set -lx COMP_LINE (string join ' ' (commandline -o))
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test (commandline -ct) = ""
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and set COMP_LINE "$COMP_LINE "
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{{.Bin}}
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end
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complete -c {{.Cmd}} -a "(__complete_{{.Cmd}})"
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`))
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err := tmpl.Execute(&buf, params)
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if err != nil {
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return "", err
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}
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return buf.String(), nil
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}
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