fix: Rename App to Command

README.md

@@ -119,7 +119,7 @@ Why use the procedural [Builder API](https://github.com/clap-rs/clap/blob/v3.0.1
 
 - [wild](https://crates.io/crates/wild) for supporting wildcards (`*`) on Windows like you do Linux
 - [argfile](https://crates.io/crates/argfile) for loading additional arguments from a file (aka response files)
-- [shadow-rs](https://crates.io/crates/shadow-rs) for generating `App::long_version`
+- [shadow-rs](https://crates.io/crates/shadow-rs) for generating `Command::long_version`
 - [clap_mangen](https://crates.io/crates/clap_mangen) for generating man page source (roff)
 - [clap_complete](https://crates.io/crates/clap_complete) for shell completion support
 - [clap-verbosity-flag](https://crates.io/crates/clap-verbosity-flag)
@@ -150,8 +150,8 @@ Why use the procedural [Builder API](https://github.com/clap-rs/clap/blob/v3.0.1
 
 **Warning:** These may contain breaking changes between minor releases.
 
-* **unstable-replace**: Enable [`App::replace`](https://github.com/clap-rs/clap/issues/2836)
-* **unstable-multicall**: Enable [`App::multicall`](https://github.com/clap-rs/clap/issues/2861)
+* **unstable-replace**: Enable [`Command::replace`](https://github.com/clap-rs/clap/issues/2836)
+* **unstable-multicall**: Enable [`Command::multicall`](https://github.com/clap-rs/clap/issues/2861)
 * **unstable-grouped**: Enable [`ArgMatches::grouped_values_of`](https://github.com/clap-rs/clap/issues/2924)
 
 ## Sponsors

benches/01_default.rs

@@ -1,13 +1,13 @@
-use clap::App;
+use clap::Command;
 use criterion::{criterion_group, criterion_main, Criterion};
 
 pub fn build_empty(c: &mut Criterion) {
-    c.bench_function("build_empty", |b| b.iter(|| App::new("claptests")));
+    c.bench_function("build_empty", |b| b.iter(|| Command::new("claptests")));
 }
 
 pub fn parse_empty(c: &mut Criterion) {
     c.bench_function("parse_empty", |b| {
-        b.iter(|| App::new("claptests").get_matches_from(vec![""]))
+        b.iter(|| Command::new("claptests").get_matches_from(vec![""]))
     });
 }
 

benches/02_simple.rs

@@ -1,9 +1,9 @@
-use clap::{arg, App, Arg};
+use clap::{arg, Arg, Command};
 use criterion::{criterion_group, criterion_main, Criterion};
 
 macro_rules! create_app {
     () => {{
-        App::new("claptests")
+        Command::new("claptests")
             .version("0.1")
             .about("tests clap library")
             .author("Kevin K. <kbknapp@gmail.com>")
@@ -19,45 +19,45 @@ pub fn build_simple(c: &mut Criterion) {
 
 pub fn build_with_flag(c: &mut Criterion) {
     c.bench_function("build_with_flag", |b| {
-        b.iter(|| App::new("claptests").arg(arg!(-s --some "something")))
+        b.iter(|| Command::new("claptests").arg(arg!(-s --some "something")))
     });
 }
 
 pub fn build_with_flag_ref(c: &mut Criterion) {
     c.bench_function("build_with_flag_ref", |b| {
         b.iter(|| {
             let arg = arg!(-s --some "something");
-            App::new("claptests").arg(&arg)
+            Command::new("claptests").arg(&arg)
         })
     });
 }
 
 pub fn build_with_opt(c: &mut Criterion) {
     c.bench_function("build_with_opt", |b| {
-        b.iter(|| App::new("claptests").arg(arg!(-s --some <FILE> "something")))
+        b.iter(|| Command::new("claptests").arg(arg!(-s --some <FILE> "something")))
     });
 }
 
 pub fn build_with_opt_ref(c: &mut Criterion) {
     c.bench_function("build_with_opt_ref", |b| {
         b.iter(|| {
             let arg = arg!(-s --some <FILE> "something");
-            App::new("claptests").arg(&arg)
+            Command::new("claptests").arg(&arg)
         })
     });
 }
 
 pub fn build_with_pos(c: &mut Criterion) {
     c.bench_function("build_with_pos", |b| {
-        b.iter(|| App::new("claptests").arg(Arg::new("some")))
+        b.iter(|| Command::new("claptests").arg(Arg::new("some")))
     });
 }
 
 pub fn build_with_pos_ref(c: &mut Criterion) {
     c.bench_function("build_with_pos_ref", |b| {
         b.iter(|| {
             let arg = Arg::new("some");
-            App::new("claptests").arg(&arg)
+            Command::new("claptests").arg(&arg)
         })
     });
 }

benches/03_complex.rs

@@ -1,12 +1,12 @@
-use clap::{arg, App, Arg};
+use clap::{arg, Arg, Command};
 use criterion::{criterion_group, criterion_main, Criterion};
 
 static OPT3_VALS: [&str; 2] = ["fast", "slow"];
 static POS3_VALS: [&str; 2] = ["vi", "emacs"];
 
 macro_rules! create_app {
     () => {{
-        App::new("claptests")
+        Command::new("claptests")
             .version("0.1")
             .about("tests clap library")
             .author("Kevin K. <kbknapp@gmail.com>")
@@ -35,7 +35,7 @@ macro_rules! create_app {
                 arg!(--maxvals3 <maxvals> ... "Tests 3 max vals").max_values(3).multiple_values(true).required(false),
             ])
             .subcommand(
-                App::new("subcmd")
+                Command::new("subcmd")
                     .about("tests subcommands")
                     .version("0.1")
                     .author("Kevin K. <kbknapp@gmail.com>")
@@ -48,7 +48,7 @@ macro_rules! create_app {
 pub fn build_from_builder(c: &mut Criterion) {
     c.bench_function("build_from_builder", |b| {
         b.iter(|| {
-            App::new("claptests")
+            Command::new("claptests")
                 .version("0.1")
                 .about("tests clap library")
                 .author("Kevin K. <kbknapp@gmail.com>")
@@ -141,7 +141,7 @@ pub fn build_from_builder(c: &mut Criterion) {
                         .max_values(3),
                 )
                 .subcommand(
-                    App::new("subcmd")
+                    Command::new("subcmd")
                         .about("tests subcommands")
                         .version("0.1")
                         .author("Kevin K. <kbknapp@gmail.com>")

benches/04_new_help.rs

@@ -1,17 +1,17 @@
-use clap::App;
+use clap::Command;
 use clap::{arg, Arg};
 use criterion::{criterion_group, criterion_main, Criterion};
 use std::io::Cursor;
 
-fn build_help(app: &mut App) -> String {
+fn build_help(cmd: &mut Command) -> String {
     let mut buf = Cursor::new(Vec::with_capacity(50));
-    app.write_help(&mut buf).unwrap();
+    cmd.write_help(&mut buf).unwrap();
     let content = buf.into_inner();
     String::from_utf8(content).unwrap()
 }
 
-fn app_example1<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example1<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
         .about("Does awesome things")
@@ -24,21 +24,21 @@ fn app_example1<'c>() -> App<'c> {
         .arg(arg!(<output> "Sets an optional output file"))
         .arg(arg!(d: -d ... "Turn debugging information on"))
         .subcommand(
-            App::new("test")
+            Command::new("test")
                 .about("does testing things")
                 .arg(arg!(-l --list "lists test values")),
         )
 }
 
-fn app_example2<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example2<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
         .about("Does awesome things")
 }
 
-fn app_example3<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example3<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .arg(
             Arg::new("debug")
                 .help("turn on debugging information")
@@ -64,8 +64,8 @@ fn app_example3<'c>() -> App<'c> {
         )
 }
 
-fn app_example4<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example4<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .about("Parses an input file to do awesome things")
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
@@ -89,8 +89,8 @@ fn app_example4<'c>() -> App<'c> {
         )
 }
 
-fn app_example5<'c>() -> App<'c> {
-    App::new("MyApp").arg(
+fn app_example5<'c>() -> Command<'c> {
+    Command::new("MyApp").arg(
         Arg::new("awesome")
             .help("turns up the awesome")
             .short('a')
@@ -99,8 +99,8 @@ fn app_example5<'c>() -> App<'c> {
     )
 }
 
-fn app_example6<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example6<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .arg(
             Arg::new("input")
                 .help("the input file to use")
@@ -111,8 +111,8 @@ fn app_example6<'c>() -> App<'c> {
         .arg(Arg::new("config").help("the config file to use").index(2))
 }
 
-fn app_example7<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example7<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .arg(Arg::new("config"))
         .arg(Arg::new("output"))
         .arg(
@@ -129,8 +129,8 @@ fn app_example7<'c>() -> App<'c> {
         )
 }
 
-fn app_example8<'c>() -> App<'c> {
-    App::new("MyApp")
+fn app_example8<'c>() -> Command<'c> {
+    Command::new("MyApp")
         .arg(Arg::new("config"))
         .arg(Arg::new("output"))
         .arg(
@@ -147,8 +147,8 @@ fn app_example8<'c>() -> App<'c> {
         )
 }
 
-fn app_example10<'c>() -> App<'c> {
-    App::new("myapp").about("does awesome things").arg(
+fn app_example10<'c>() -> Command<'c> {
+    Command::new("myapp").about("does awesome things").arg(
         Arg::new("CONFIG")
             .help("The config file to use (default is \"config.json\")")
             .short('c')
@@ -157,53 +157,53 @@ fn app_example10<'c>() -> App<'c> {
 }
 
 pub fn example1(c: &mut Criterion) {
-    let mut app = app_example1();
-    c.bench_function("example1", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example1();
+    c.bench_function("example1", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example2(c: &mut Criterion) {
-    let mut app = app_example2();
-    c.bench_function("example2", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example2();
+    c.bench_function("example2", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example3(c: &mut Criterion) {
-    let mut app = app_example3();
-    c.bench_function("example3", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example3();
+    c.bench_function("example3", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example4(c: &mut Criterion) {
-    let mut app = app_example4();
-    c.bench_function("example4", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example4();
+    c.bench_function("example4", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example5(c: &mut Criterion) {
-    let mut app = app_example5();
-    c.bench_function("example5", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example5();
+    c.bench_function("example5", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example6(c: &mut Criterion) {
-    let mut app = app_example6();
-    c.bench_function("example6", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example6();
+    c.bench_function("example6", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example7(c: &mut Criterion) {
-    let mut app = app_example7();
-    c.bench_function("example7", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example7();
+    c.bench_function("example7", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example8(c: &mut Criterion) {
-    let mut app = app_example8();
-    c.bench_function("example8", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example8();
+    c.bench_function("example8", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example10(c: &mut Criterion) {
-    let mut app = app_example10();
-    c.bench_function("example10", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example10();
+    c.bench_function("example10", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 pub fn example4_template(c: &mut Criterion) {
-    let mut app = app_example4().help_template("{bin} {version}\n{author}\n{about}\n\nUSAGE:\n    {usage}\n\nOPTIONS:\n{options}\n\nARGS:\n{args}\n");
-    c.bench_function("example4_template", |b| b.iter(|| build_help(&mut app)));
+    let mut cmd = app_example4().help_template("{bin} {version}\n{author}\n{about}\n\nUSAGE:\n    {usage}\n\nOPTIONS:\n{options}\n\nARGS:\n{args}\n");
+    c.bench_function("example4_template", |b| b.iter(|| build_help(&mut cmd)));
 }
 
 criterion_group!(