feat: Added dynamic tab completions for the profile, providers, and the secrets in any given secret manager

Cargo.lock

@@ -926,6 +926,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "75bf0b32ad2e152de789bb635ea4d3078f6b838ad7974143e99b99f45a04af4a"
 dependencies = [
  "clap",
+ "clap_lex",
+ "is_executable",
+ "shlex",
 ]
 
 [[package]]
@@ -1306,6 +1309,12 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34aa73646ffb006b8f5147f3dc182bd4bcb190227ce861fc4a4844bf8e3cb2c0"
 
+[[package]]
+name = "env_home"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7f84e12ccf0a7ddc17a6c41c93326024c42920d7ee630d04950e6926645c0fe"
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -1604,6 +1613,7 @@ dependencies = [
  "indoc",
  "log",
  "log4rs",
+ "once_cell",
  "openssl",
  "predicates",
  "pretty_assertions",
@@ -1618,6 +1628,7 @@ dependencies = [
  "tempfile",
  "tokio",
  "validator",
+ "which",
  "zeroize",
 ]
 
@@ -2117,6 +2128,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "is_executable"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baabb8b4867b26294d818bf3f651a454b6901431711abb96e296245888d6e8c4"
+dependencies = [
+ "windows-sys 0.60.2",
+]
+
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.1"
@@ -4258,6 +4278,17 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "which"
+version = "8.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3fabb953106c3c8eea8306e4393700d7657561cb43122571b172bbfb7c7ba1d"
+dependencies = [
+ "env_home",
+ "rustix",
+ "winsafe",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -4510,6 +4541,12 @@ version = "0.53.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
 
+[[package]]
+name = "winsafe"
+version = "0.0.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d135d17ab770252ad95e9a872d365cf3090e3be864a34ab46f48555993efc904"
+
 [[package]]
 name = "wit-bindgen"
 version = "0.46.0"

Cargo.toml

@@ -25,7 +25,7 @@ clap = { version = "4.5.47", features = [
   "env",
   "wrap_help",
 ] }
-clap_complete = "4.5.57"
+clap_complete = { version = "4.5.57", features = ["unstable-dynamic"] }
 confy = { version = "1.0.0", default-features = false, features = [
   "yaml_conf",
 ] }
@@ -59,6 +59,8 @@ crc32c = "0.6.8"
 azure_identity = "0.27.0"
 azure_security_keyvault_secrets = "0.6.0"
 aws-lc-sys = { version = "0.31.0", features = ["bindgen"] }
+which = "8.0.0"
+once_cell = "1.21.3"
 
 [target.'cfg(all(target_os="linux", target_env="musl"))'.dependencies]
 openssl = { version = "0.10", features = ["vendored"] }

README.md

@@ -175,6 +175,22 @@ To use a binary from the releases page on Linux/MacOS, do the following:
 3. Extract the binary with `tar -C /usr/local/bin -xzf gman-<arch>.tar.gz` (Note: This may require `sudo`)
 4. Now you can run `gman`!
 
+### Enable Tab Completion
+`gman` supports shell tab completion for `bash`, `zsh`, and `fish`. To enable it, run the following command for your 
+shell:
+
+```shell
+# Bash
+echo 'source <(COMPLETE=bash gman)' >> ~/.bashrc
+# Zsh
+echo 'source <(COMPLETE=zsh gman)' >> ~/.zshrc
+# Fish
+echo 'COMPLETE=fish gman | source' >> ~/.config/fish/config.fish
+```
+
+Then restart your shell or `source` the appropriate config file.
+
+
 ## Configuration
 
 `gman` reads a YAML configuration file located at an OS-specific path:

src/bin/gman/cli.rs

@@ -1,14 +1,16 @@
 use crate::command::preview_command;
 use anyhow::{Context, Result, anyhow};
 use futures::future::join_all;
-use gman::config::{Config, RunConfig};
+use gman::config::{load_config, Config, RunConfig};
 use log::{debug, error};
 use regex::Regex;
 use std::collections::HashMap;
-use std::ffi::OsString;
+use std::ffi::{OsStr, OsString};
 use std::fs;
 use std::path::PathBuf;
 use std::process::Command;
+use clap_complete::CompletionCandidate;
+use tokio::runtime::Handle;
 
 const ARG_FORMAT_PLACEHOLDER_KEY: &str = "{{key}}";
 const ARG_FORMAT_PLACEHOLDER_VALUE: &str = "{{value}}";
@@ -252,6 +254,51 @@ pub fn parse_args(
     Ok(args)
 }
 
+pub fn run_config_completer(current: &OsStr) -> Vec<CompletionCandidate> {
+	let cur = current.to_string_lossy();
+	match load_config() {
+		Ok(config) => {
+			if let Some(run_configs) = config.run_configs {
+				run_configs
+					.iter()
+					.filter(|rc| {
+						rc.name
+							.as_ref()
+							.expect("run config has no name")
+							.starts_with(&*cur)
+					})
+					.map(|rc| {
+						CompletionCandidate::new(rc.name.as_ref().expect("run config has no name"))
+					})
+					.collect()
+			} else {
+				vec![]
+			}
+		}
+		Err(_) => vec![],
+	}
+}
+
+pub fn secrets_completer(current: &OsStr) -> Vec<CompletionCandidate> {
+	let cur = current.to_string_lossy();
+	match load_config() {
+		Ok(config) => {
+			let mut provider_config = match config.extract_provider_config(None) {
+				Ok(pc) => pc,
+				Err(_) => return vec![],
+			};
+			let secrets_provider = provider_config.extract_provider();
+			let h = Handle::current();
+			tokio::task::block_in_place(|| h.block_on(secrets_provider.list_secrets())).unwrap_or_default()
+				.into_iter()
+				.filter(|s| s.starts_with(&*cur))
+				.map(CompletionCandidate::new)
+				.collect()
+		}
+		Err(_) => vec![],
+	}
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src/bin/gman/main.rs

@@ -1,11 +1,14 @@
+use crate::cli::run_config_completer;
+use crate::cli::secrets_completer;
 use anyhow::{Context, Result};
 use clap::Subcommand;
 use clap::{
-    CommandFactory, Parser, ValueEnum, crate_authors, crate_description, crate_name, crate_version,
+	crate_authors, crate_description, crate_name, crate_version, CommandFactory, Parser, ValueEnum,
 };
+use clap_complete::{ArgValueCompleter, CompleteEnv};
 use crossterm::execute;
-use crossterm::terminal::{LeaveAlternateScreen, disable_raw_mode};
+use crossterm::terminal::{disable_raw_mode, LeaveAlternateScreen};
-use gman::config::{Config, get_config_file_path, load_config};
+use gman::config::{get_config_file_path, load_config, Config};
 use std::ffi::OsString;
 use std::io::{self, IsTerminal, Read, Write};
 use std::panic::PanicHookInfo;
@@ -48,11 +51,11 @@ struct Cli {
     output: Option<OutputFormat>,
 
     /// Specify the secret provider to use (defaults to 'default_provider' in config (usually 'local'))
-    #[arg(long, value_enum, global = true, env = "GMAN_PROVIDER")]
+    #[arg(long, global = true, env = "GMAN_PROVIDER", value_parser = ["local", "aws_secrets_manager", "azure_key_vault", "gcp_secret_manager", "gopass"])]
     provider: Option<String>,
 
     /// Specify a run profile to use when wrapping a command
-    #[arg(long, short)]
+    #[arg(long, short, add = ArgValueCompleter::new(run_config_completer))]
     profile: Option<String>,
 
     /// Output the command that will be run instead of executing it
@@ -82,6 +85,7 @@ enum Commands {
     /// Decrypt a secret and print the plaintext
     Get {
         /// Name of the secret to retrieve
+				#[arg(add = ArgValueCompleter::new(secrets_completer))]
         name: String,
     },
 
@@ -89,12 +93,14 @@ enum Commands {
     /// If a provider does not support updating secrets, this command will return an error.
     Update {
         /// Name of the secret to update
+				#[arg(add = ArgValueCompleter::new(secrets_completer))]
         name: String,
     },
 
     /// Delete a secret from the configured secret provider
     Delete {
         /// Name of the secret to delete
+				#[arg(add = ArgValueCompleter::new(secrets_completer))]
         name: String,
     },
 
@@ -129,6 +135,7 @@ async fn main() -> Result<()> {
     panic::set_hook(Box::new(|info| {
         panic_hook(info);
     }));
+    CompleteEnv::with_factory(Cli::command).complete();
     let cli = Cli::parse();
 
     if cli.show_log_path {