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82394debb7
The approach is lifted from cobra: `tailscale completion bash` emits a bash
script for configuring the shell's autocomplete:
. <( tailscale completion bash )
so that typing:
tailscale st<TAB>
invokes:
tailscale completion __complete -- st
RELNOTE=tailscale CLI now supports shell tab-completion
Fixes #3793
Signed-off-by: Paul Scott <paul@tailscale.com>
73 lines
1.8 KiB
Go
73 lines
1.8 KiB
Go
package cobra
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import (
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"bytes"
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"compress/gzip"
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_ "embed"
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"fmt"
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"io"
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)
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//go:generate go run gen.go
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//go:embed comp.bash.gz
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var compBash string
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func ScriptBash(w io.Writer, name, compCmd, nameForVar string) error {
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return fmtgz(
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w, compBash,
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name, compCmd,
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ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
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ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, ShellCompDirectiveKeepOrder,
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)
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}
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//go:embed comp.zsh.gz
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var compZsh string
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func ScriptZsh(w io.Writer, name, compCmd, nameForVar string) error {
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return fmtgz(
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w, compZsh,
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name, compCmd,
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ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
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ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, ShellCompDirectiveKeepOrder,
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)
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}
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//go:embed comp.fish.gz
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var compFish string
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func ScriptFish(w io.Writer, name, compCmd, nameForVar string) error {
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return fmtgz(
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w, compFish,
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nameForVar, name, compCmd,
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ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
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ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, ShellCompDirectiveKeepOrder,
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)
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}
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//go:embed comp.ps1.gz
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var compPowershell string
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func ScriptPowershell(w io.Writer, name, compCmd, nameForVar string) error {
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return fmtgz(
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w, compPowershell,
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name, nameForVar, compCmd,
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ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
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ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, ShellCompDirectiveKeepOrder,
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)
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}
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func fmtgz(w io.Writer, formatgz string, args ...any) error {
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f, err := gzip.NewReader(bytes.NewBufferString(formatgz))
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if err != nil {
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return fmt.Errorf("decompressing script: %w", err)
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}
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format, err := io.ReadAll(f)
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if err != nil {
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return fmt.Errorf("decompressing script: %w", err)
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}
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_, err = fmt.Fprintf(w, string(format), args...)
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return err
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}
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