Add shell autocompletion

Signed-off-by: Marcel Müller <neikos@neikos.email>

4 files changed, 224 insertions, 42 deletions

diff --git a/Cargo.lock b/Cargo.lock
index eff0f45..06e1505 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -27,12 +27,61 @@ dependencies = [
 ]
 
 [[package]]
+name = "anstream"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6342bd4f5a1205d7f41e94a41a901f5647c938cdfa96036338e8533c9d6c2450"
+dependencies = [
+ "anstyle 1.0.0",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is-terminal",
+ "utf8parse",
+]
+
+[[package]]
 name = "anstyle"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23ea9e81bd02e310c216d080f6223c179012256e5151c41db88d12c88a1684d2"
 
 [[package]]
+name = "anstyle"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41ed9a86bf92ae6580e0a31281f65a1b1d867c0cc68d5346e2ae128dddfa6a7d"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e765fd216e48e067936442276d1d57399e37bce53c264d6fefbe298080cb57ee"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
+dependencies = [
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "180abfa45703aebe0093f79badacc01b8fd4ea2e35118747e5811127f926e188"
+dependencies = [
+ "anstyle 1.0.0",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
 name = "assert_cmd"
 version = "2.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -120,6 +169,7 @@ dependencies = [
  "assert_cmd",
  "cargo_metadata",
  "clap",
+ "clap_complete",
  "comma",
  "dialoguer",
  "env_logger",
@@ -182,41 +232,62 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.0.27"
+version = "4.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0acbd8d28a0a60d7108d7ae850af6ba34cf2d1257fc646980e5f97ce14275966"
+checksum = "8a1f23fa97e1d1641371b51f35535cb26959b8e27ab50d167a8b996b5bada819"
 dependencies = [
- "bitflags",
+ "clap_builder",
  "clap_derive",
+ "once_cell",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fdc5d93c358224b4d6867ef1356d740de2303e9892edc06c5340daeccd96bab"
+dependencies = [
+ "anstream",
+ "anstyle 1.0.0",
+ "bitflags",
  "clap_lex",
- "is-terminal",
  "once_cell",
  "strsim",
- "termcolor",
  "terminal_size 0.2.1",
 ]
 
 [[package]]
+name = "clap_complete"
+version = "4.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a19591b2ab0e3c04b588a0e04ddde7b9eaa423646d1b4a8092879216bf47473"
+dependencies = [
+ "clap",
+]
+
+[[package]]
 name = "clap_derive"
-version = "4.0.21"
+version = "4.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0177313f9f02afc995627906bbd8967e2be069f5261954222dac78290c2b9014"
+checksum = "3f9644cd56d6b87dbe899ef8b053e331c0637664e9e21a33dfcdc36093f5c5c4"
 dependencies = [
  "heck",
- "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 1.0.104",
+ "syn 2.0.12",
 ]
 
 [[package]]
 name = "clap_lex"
-version = "0.3.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d4198f73e42b4936b35b5bb248d81d2b595ecb170da0bac7655c54eedfa8da8"
-dependencies = [
- "os_str_bytes",
-]
+checksum = "8a2dd5a6fe8c6e3502f568a6353e5273bbb15193ad9a89e457b9970798efbea1"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
 [[package]]
 name = "comma"
@@ -328,6 +399,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "errno"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
 name = "errno-dragonfly"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -445,12 +527,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.2.6"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
-dependencies = [
- "libc",
-]
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
 [[package]]
 name = "humantime"
@@ -502,24 +581,25 @@ checksum = "1ea37f355c05dde75b84bba2d767906ad522e97cd9e2eef2be7a4ab7fb442c06"
 
 [[package]]
 name = "io-lifetimes"
-version = "1.0.2"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e394faa0efb47f9f227f1cd89978f854542b318a6f64fa695489c9c993056656"
+checksum = "9c66c74d2ae7e79a5a8f7ac924adbe38ee42a859c6539ad869eb51f0b52dc220"
 dependencies = [
+ "hermit-abi 0.3.1",
  "libc",
- "windows-sys 0.42.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "is-terminal"
-version = "0.4.0"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aae5bc6e2eb41c9def29a3e0f1306382807764b9b53112030eff57435667352d"
+checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
 dependencies = [
- "hermit-abi 0.2.6",
- "io-lifetimes 1.0.2",
- "rustix 0.36.3",
- "windows-sys 0.42.0",
+ "hermit-abi 0.3.1",
+ "io-lifetimes 1.0.10",
+ "rustix 0.37.17",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -560,9 +640,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.137"
+version = "0.2.142"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
+checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
 
 [[package]]
 name = "libgit2-sys"
@@ -617,6 +697,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f9f08d8963a6c613f4b1a78f4f4a4dbfadf8e6545b2d72861731e4858b8b47f"
 
 [[package]]
+name = "linux-raw-sys"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b64f40e5e03e0d54f03845c8197d0291253cdbedfb1cb46b13c2c117554a9f4c"
+
+[[package]]
 name = "log"
 version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -727,12 +813,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "os_str_bytes"
-version = "6.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ff7415e9ae3fff1225851df9e0d9e4e5479f947619774677a63572e55e80eff"
-
-[[package]]
 name = "owo-colors"
 version = "3.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -811,7 +891,7 @@ version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c575290b64d24745b6c57a12a31465f0a66f3a4799686a6921526a33b0797965"
 dependencies = [
- "anstyle",
+ "anstyle 0.3.5",
  "difflib",
  "float-cmp",
  "itertools",
@@ -923,7 +1003,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72c825b8aa8010eb9ee99b75f05e10180b9278d161583034d7574c9d617aeada"
 dependencies = [
  "bitflags",
- "errno",
+ "errno 0.2.8",
  "io-lifetimes 0.7.3",
  "libc",
  "linux-raw-sys 0.0.46",
@@ -937,14 +1017,28 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b1fbb4dfc4eb1d390c02df47760bb19a84bb80b301ecc947ab5406394d8223e"
 dependencies = [
  "bitflags",
- "errno",
- "io-lifetimes 1.0.2",
+ "errno 0.2.8",
+ "io-lifetimes 1.0.10",
  "libc",
  "linux-raw-sys 0.1.3",
  "windows-sys 0.42.0",
 ]
 
 [[package]]
+name = "rustix"
+version = "0.37.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc809f704c03a812ac71f22456c857be34185cac691a4316f27ab0f633bb9009"
+dependencies = [
+ "bitflags",
+ "errno 0.3.1",
+ "io-lifetimes 1.0.10",
+ "libc",
+ "linux-raw-sys 0.3.6",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
 name = "ryu"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1314,6 +1408,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
+[[package]]
 name = "vcpkg"
 version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1394,22 +1494,52 @@ version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
 dependencies = [
- "windows_aarch64_gnullvm",
+ "windows_aarch64_gnullvm 0.42.0",
  "windows_aarch64_msvc 0.42.0",
  "windows_i686_gnu 0.42.0",
  "windows_i686_msvc 0.42.0",
  "windows_x86_64_gnu 0.42.0",
- "windows_x86_64_gnullvm",
+ "windows_x86_64_gnullvm 0.42.0",
  "windows_x86_64_msvc 0.42.0",
 ]
 
 [[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.0",
+ "windows_aarch64_msvc 0.48.0",
+ "windows_i686_gnu 0.48.0",
+ "windows_i686_msvc 0.48.0",
+ "windows_x86_64_gnu 0.48.0",
+ "windows_x86_64_gnullvm 0.48.0",
+ "windows_x86_64_msvc 0.48.0",
+]
+
+[[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
 
 [[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+
+[[package]]
 name = "windows_aarch64_msvc"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1422,6 +1552,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
 
 [[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+
+[[package]]
 name = "windows_i686_gnu"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1434,6 +1570,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
 
 [[package]]
+name = "windows_i686_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+
+[[package]]
 name = "windows_i686_msvc"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1446,6 +1588,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
 
 [[package]]
+name = "windows_i686_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+
+[[package]]
 name = "windows_x86_64_gnu"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1458,12 +1606,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
 
 [[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+
+[[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
 
 [[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+
+[[package]]
 name = "windows_x86_64_msvc"
 version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1476,6 +1636,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
 
 [[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+
+[[package]]
 name = "winnow"
 version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
index c02a9d1..d45e455 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,7 @@ maintenance = { status = "actively-developed" }
 [dependencies]
 cargo_metadata = "0.15.3"
 clap = { version = "4", features = [ "cargo", "derive", "wrap_help" ] }
+clap_complete = "4.2.1"
 comma = "1.0.0"
 dialoguer = "0.10.3"
 env_logger = "0.10.0"
diff --git a/src/cli.rs b/src/cli.rs
index 3dcf923..76820ce 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -2,6 +2,7 @@ use std::path::PathBuf;
 
 use clap::Parser;
 use clap::Subcommand;
+use clap_complete::Shell;
 
 use crate::config::GitSetting;
 use crate::error::TextProviderError;
@@ -92,6 +93,12 @@ pub enum Command {
         #[clap(subcommand)]
         range: Option<ShowRange>,
     },
+    /// Generation completions for the shell of your choice, available options:
+    /// [bash, elvish, fish, powershell, zsh]
+    GenerationCompletions {
+        #[clap(value_parser)]
+        shell: Shell,
+    },
 }
 
 fn text_provider_parser(s: &str) -> Result<TextProvider, String> {
diff --git a/src/main.rs b/src/main.rs
index eeaa847..c08ae6e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,9 @@
+use std::io;
 use std::path::PathBuf;
 
+use clap::CommandFactory;
+use clap_complete::generate;
+use cli::Args;
 use miette::IntoDiagnostic;
 
 mod cli;
@@ -96,6 +100,10 @@ fn main() -> miette::Result<()> {
             .range(range)
             .build()
             .execute(&repo_workdir_path, &config)?,
+        Command::GenerationCompletions { shell } => {
+            let mut cmd = Args::command();
+            generate(shell, &mut cmd, "cargo-changelog", &mut io::stdout());
+        }
     }
 
     Ok(())