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cmd/tailscale: add shell tab-completion

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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>
This commit is contained in:
Paul Scott
2024-02-29 22:56:25 +00:00
committed by Paul Scott
parent 21a0fe1b9b
commit 82394debb7
32 changed files with 2393 additions and 18 deletions
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cmd/tailscale/cli/debug.go
+2 -1
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@@ -48,7 +48,8 @@ var debugCmd = &ffcli.Command{
Name: "debug",
Exec: runDebug,
ShortUsage: "tailscale debug <debug-flags | subcommand>",
LongHelp: `HIDDEN: "tailscale debug" contains misc debug facilities; it is not a stable interface.`,
ShortHelp: "Debug commands",
LongHelp: hidden + `"tailscale debug" contains misc debug facilities; it is not a stable interface.`,
FlagSet: (func() *flag.FlagSet {
fs := newFlagSet("debug")
fs.StringVar(&debugArgs.file, "file", "", "get, delete:NAME, or NAME")