Merge branch 'tomas/shell-complete' (#3343)

* tomas/shell-complete:
  update Cargo.lock
  changelog: add #3343
  cli: add shell completions generator

.changelog/unreleased/improvements/3343-shell-complete.md

@@ -0,0 +1,11 @@
+- Added a `namada complete` command to generate shell completions. This command
+  requires `--shell` with one of:
+  -  bash
+  - elvish
+  - fish
+  - powershell
+  - zsh
+  - nushell
+
+  To use in e.g. bash, run `namada complete --shell bash > /usr/share/bash-completion/completions/namada.bash`.
+  ([\#3343](https://github.com/anoma/namada/pull/3343))

Cargo.toml

@@ -82,7 +82,9 @@ borsh = {version = "1.2.0", features = ["unstable__schema", "derive"]}
 borsh-ext = { git = "https://github.com/heliaxdev/borsh-ext", tag = "v1.2.0" }
 chrono = {version = "0.4.22", default-features = false, features = ["clock", "std"]}
 circular-queue = "0.2.6"
-clap = "4.3.4"
+clap = "4.5"
+clap_complete = "4.5"
+clap_complete_nushell = "4.5"
 clru = {git = "https://github.com/marmeladema/clru-rs.git", rev = "71ca566"}
 color-eyre = "0.6.2"
 concat-idents = "1.1.2"

crates/apps/Cargo.toml

@@ -55,6 +55,8 @@ namada = {path = "../namada"}
 namada_apps_lib = {path = "../apps_lib"}
 namada_node = {path = "../node"}
 
+clap_complete.workspace = true
+clap_complete_nushell.workspace = true
 color-eyre.workspace = true
 eyre.workspace = true
 tokio = {workspace = true, features = ["full"]}

crates/apps/src/bin/namada/cli.rs

@@ -60,6 +60,47 @@ fn handle_command(cmd: cli::cmds::Namada, raw_sub_cmd: String) -> Result<()> {
         cli::cmds::Namada::Relayer(_) | cli::cmds::Namada::EthBridgePool(_) => {
             handle_subcommand("namadar", sub_args)
         }
+        cli::cmds::Namada::Complete(cli::cmds::Complete(
+            cli::args::Complete { shell },
+        )) => {
+            use std::io::stdout;
+
+            use clap_complete::{generate, shells};
+            use clap_complete_nushell::Nushell;
+
+            for (mut app, name) in [
+                (cli::namada_app(), "namada"),
+                (cli::namada_node_app(), "namadan"),
+                (cli::namada_client_app(), "namadac"),
+                (cli::namada_wallet_app(), "namadaw"),
+                (cli::namada_relayer_app(), "namadar"),
+            ] {
+                match shell {
+                    cli::args::Shell::Bash => {
+                        generate(shells::Bash, &mut app, name, &mut stdout())
+                    }
+                    cli::args::Shell::Elvish => {
+                        generate(shells::Elvish, &mut app, name, &mut stdout())
+                    }
+                    cli::args::Shell::Fish => {
+                        generate(shells::Fish, &mut app, name, &mut stdout())
+                    }
+                    cli::args::Shell::PowerShell => generate(
+                        shells::PowerShell,
+                        &mut app,
+                        name,
+                        &mut stdout(),
+                    ),
+                    cli::args::Shell::Zsh => {
+                        generate(shells::Zsh, &mut app, name, &mut stdout())
+                    }
+                    cli::args::Shell::Nushell => {
+                        generate(Nushell, &mut app, name, &mut stdout())
+                    }
+                };
+            }
+            Ok(())
+        }
     }
 }