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fix(publisher): add --help support for subcommands (#867)

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## Summary
- Added `printCommandHelp()` function to display help for each
subcommand
- `mcp-publisher init --help` now shows init command help instead of
running init
- `mcp-publisher login --help` now shows login methods instead of error
- `mcp-publisher publish --help` now shows publish usage instead of
attempting publish

Fixes #735

Signed-off-by: majiayu000 <1835304752@qq.com>
Co-authored-by: Radoslav Dimitrov <radoslav@stacklok.com>
This commit is contained in:
lif 2026-01-04 06:59:59 +08:00 • committed by GitHub
commit 61fdf17b21
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62
cmd/publisher/main.go
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@ -27,6 +27,12 @@ func main() {
os.Exit(1)
}
// Check for help flag for subcommands
if len(os.Args) >= 3 && (os.Args[2] == "--help" || os.Args[2] == "-h") {
printCommandHelp(os.Args[1])
return
}
var err error
switch os.Args[1] {
case "init":
@ -68,3 +74,59 @@ func printUsage() {
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Use 'mcp-publisher <command> --help' for more information about a command.")
}
func printCommandHelp(command string) {
switch command {
case "init":
_, _ = fmt.Fprintln(os.Stdout, "Create a server.json file template")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Usage:")
_, _ = fmt.Fprintln(os.Stdout, " mcp-publisher init")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "This command creates a server.json file in the current directory with")
_, _ = fmt.Fprintln(os.Stdout, "auto-detected values from your project (package.json, git remote, etc.).")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "After running init, edit the generated server.json to customize your")
_, _ = fmt.Fprintln(os.Stdout, "server's metadata before publishing.")
case "login":
_, _ = fmt.Fprintln(os.Stdout, "Authenticate with the registry")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Usage:")
_, _ = fmt.Fprintln(os.Stdout, " mcp-publisher login <method> [options]")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Methods:")
_, _ = fmt.Fprintln(os.Stdout, " github Interactive GitHub authentication")
_, _ = fmt.Fprintln(os.Stdout, " github-oidc GitHub Actions OIDC authentication")
_, _ = fmt.Fprintln(os.Stdout, " dns DNS-based authentication (requires --domain)")
_, _ = fmt.Fprintln(os.Stdout, " http HTTP-based authentication (requires --domain)")
_, _ = fmt.Fprintln(os.Stdout, " none Anonymous authentication (for testing)")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Examples:")
_, _ = fmt.Fprintln(os.Stdout, " mcp-publisher login github")
_, _ = fmt.Fprintln(os.Stdout, " mcp-publisher login dns --domain example.com --private-key <key>")
case "logout":
_, _ = fmt.Fprintln(os.Stdout, "Clear saved authentication")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Usage:")
_, _ = fmt.Fprintln(os.Stdout, " mcp-publisher logout")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "This command removes the saved authentication token from your system.")
case "publish":
_, _ = fmt.Fprintln(os.Stdout, "Publish server.json to the registry")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Usage:")
_, _ = fmt.Fprintln(os.Stdout, " mcp-publisher publish [server.json]")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "Arguments:")
_, _ = fmt.Fprintln(os.Stdout, " server.json Path to the server.json file (default: ./server.json)")
_, _ = fmt.Fprintln(os.Stdout)
_, _ = fmt.Fprintln(os.Stdout, "You must be logged in before publishing. Run 'mcp-publisher login' first.")
default:
fmt.Fprintf(os.Stderr, "Unknown command: %s\n", command)
printUsage()
}
}