print nushell startup time (#7831)

# Description

This PR shows the startup time and decreases the banner. This startup
time output can be disabled with the `show_banner: false` setting in the
config. This is the startup in debug mode.

![image](https://user-images.githubusercontent.com/343840/213955410-f319f8d4-1f96-47ae-8366-1c564a08d3e4.png)

On my mac in release mode
```
Startup Time: 368ms 429µs 83ns
```
On my mac without a config as `nu --config foo --env-config foo`
```
Startup Time: 11ms 663µs 791ns
```

I could really go either way on this. If people don't like this change,
we don't have to merge it.

# User-Facing Changes

Startup Time

# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

Cargo.lock

@@ -1233,16 +1233,6 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
 
-[[package]]
-name = "fancy-regex"
-version = "0.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0678ab2d46fa5195aaf59ad034c083d351377d4af57f3e073c074d0da3e3c766"
-dependencies = [
- "bit-set",
- "regex",
-]
-
 [[package]]
 name = "fancy-regex"
 version = "0.11.0"
@@ -2118,9 +2108,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.135"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "libgit2-sys"
@@ -2674,7 +2664,7 @@ dependencies = [
  "atty",
  "chrono",
  "crossterm 0.24.0",
- "fancy-regex 0.10.0",
+ "fancy-regex",
  "fuzzy-matcher",
  "is_executable",
  "log",
@@ -2732,7 +2722,7 @@ dependencies = [
  "dtparse",
  "eml-parser",
  "encoding_rs",
- "fancy-regex 0.10.0",
+ "fancy-regex",
  "filesize",
  "filetime",
  "fs_extra",
@@ -2916,7 +2906,7 @@ dependencies = [
  "byte-unit",
  "chrono",
  "chrono-humanize",
- "fancy-regex 0.11.0",
+ "fancy-regex",
  "indexmap",
  "lru",
  "miette",
@@ -5399,9 +5389,9 @@ checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.4"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcc811dc4066ac62f84f11307873c4850cb653bfa9b1719cee2bd2204a4bc5dd"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
 
 [[package]]
 name = "unicode-linebreak"

Cargo.toml

@@ -45,21 +45,21 @@ ctrlc = "3.2.1"
 log = "0.4"
 miette = { version = "5.5.0", features = ["fancy-no-backtrace"] }
 nu-ansi-term = "0.46.0"
-nu-cli = { path="./crates/nu-cli", version = "0.74.1"  }
+nu-cli = { path = "./crates/nu-cli", version = "0.74.1" }
-nu-color-config = { path = "./crates/nu-color-config", version = "0.74.1"  }
+nu-color-config = { path = "./crates/nu-color-config", version = "0.74.1" }
-nu-command = { path="./crates/nu-command", version = "0.74.1"  }
+nu-command = { path = "./crates/nu-command", version = "0.74.1" }
-nu-engine = { path="./crates/nu-engine", version = "0.74.1"  }
+nu-engine = { path = "./crates/nu-engine", version = "0.74.1" }
-nu-json = { path="./crates/nu-json", version = "0.74.1"  }
+nu-json = { path = "./crates/nu-json", version = "0.74.1" }
-nu-parser = { path="./crates/nu-parser", version = "0.74.1"  }
+nu-parser = { path = "./crates/nu-parser", version = "0.74.1" }
-nu-path = { path="./crates/nu-path", version = "0.74.1"  }
+nu-path = { path = "./crates/nu-path", version = "0.74.1" }
-nu-plugin = { path = "./crates/nu-plugin", optional = true, version = "0.74.1"  }
+nu-plugin = { path = "./crates/nu-plugin", optional = true, version = "0.74.1" }
-nu-pretty-hex = { path = "./crates/nu-pretty-hex", version = "0.74.1"  }
+nu-pretty-hex = { path = "./crates/nu-pretty-hex", version = "0.74.1" }
-nu-protocol = { path = "./crates/nu-protocol", version = "0.74.1"  }
+nu-protocol = { path = "./crates/nu-protocol", version = "0.74.1" }
 nu-system = { path = "./crates/nu-system", version = "0.74.1" }
-nu-table = { path = "./crates/nu-table", version = "0.74.1"  }
+nu-table = { path = "./crates/nu-table", version = "0.74.1" }
-nu-term-grid = { path = "./crates/nu-term-grid", version = "0.74.1"  }
+nu-term-grid = { path = "./crates/nu-term-grid", version = "0.74.1" }
-nu-utils = { path = "./crates/nu-utils", version = "0.74.1"  }
+nu-utils = { path = "./crates/nu-utils", version = "0.74.1" }
-reedline = { version = "0.14.0", features = ["bashisms", "sqlite"]}
+reedline = { version = "0.14.0", features = ["bashisms", "sqlite"] }
 
 rayon = "1.6.1"
 is_executable = "1.0.1"
@@ -76,22 +76,29 @@ signal-hook = { version = "0.3.14", default-features = false }
 winres = "0.1"
 
 [target.'cfg(target_family = "unix")'.dependencies]
-nix = { version = "0.25", default-features = false, features = ["signal", "process", "fs", "term"]}
+nix = { version = "0.25", default-features = false, features = ["signal", "process", "fs", "term"] }
 atty = "0.2"
 
 [dev-dependencies]
-nu-test-support = { path="./crates/nu-test-support", version = "0.74.1"  }
+nu-test-support = { path = "./crates/nu-test-support", version = "0.74.1" }
 tempfile = "3.2.0"
 assert_cmd = "2.0.2"
 criterion = "0.4"
 pretty_assertions = "1.0.0"
 serial_test = "0.10.0"
 hamcrest2 = "0.3.0"
-rstest = {version = "0.15.0", default-features = false}
+rstest = { version = "0.15.0", default-features = false }
 itertools = "0.10.3"
 
 [features]
-plugin = ["nu-plugin", "nu-cli/plugin", "nu-parser/plugin", "nu-command/plugin", "nu-protocol/plugin", "nu-engine/plugin"]
+plugin = [
+	"nu-plugin",
+	"nu-cli/plugin",
+	"nu-parser/plugin",
+	"nu-command/plugin",
+	"nu-protocol/plugin",
+	"nu-engine/plugin",
+]
 # extra used to be more useful but now it's the same as default. Leaving it in for backcompat with existing build scripts
 extra = ["default"]
 default = ["plugin", "which-support", "trash-support", "sqlite"]
@@ -114,7 +121,7 @@ dataframe = ["nu-command/dataframe"]
 sqlite = ["nu-command/sqlite"]
 
 [profile.release]
-opt-level = "s" # Optimize for size
+opt-level = "s"     # Optimize for size
 strip = "debuginfo"
 lto = "thin"
 
@@ -147,4 +154,4 @@ reedline = { git = "https://github.com/nushell/reedline.git", branch = "main" }
 # Run individual benchmarks like `cargo bench -- <regex>` e.g. `cargo bench -- parse`
 [[bench]]
 name = "benchmarks"
-harness = false
+harness = false

crates/nu-cli/Cargo.toml

@@ -8,24 +8,24 @@ name = "nu-cli"
 version = "0.74.1"
 
 [dev-dependencies]
-nu-test-support = { path="../nu-test-support", version = "0.74.1"  }
+nu-test-support = { path = "../nu-test-support", version = "0.74.1" }
 nu-command = { path = "../nu-command", version = "0.74.1" }
-rstest = {version = "0.15.0", default-features = false}
+rstest = { version = "0.15.0", default-features = false }
 
 [dependencies]
-nu-engine = { path = "../nu-engine", version = "0.74.1"  }
+nu-engine = { path = "../nu-engine", version = "0.74.1" }
-nu-path = { path = "../nu-path", version = "0.74.1"  }
+nu-path = { path = "../nu-path", version = "0.74.1" }
-nu-parser = { path = "../nu-parser", version = "0.74.1"  }
+nu-parser = { path = "../nu-parser", version = "0.74.1" }
-nu-protocol = { path = "../nu-protocol", version = "0.74.1"  }
+nu-protocol = { path = "../nu-protocol", version = "0.74.1" }
-nu-utils = { path = "../nu-utils", version = "0.74.1"  }
+nu-utils = { path = "../nu-utils", version = "0.74.1" }
 nu-ansi-term = "0.46.0"
-nu-color-config = { path = "../nu-color-config", version = "0.74.1"  }
+nu-color-config = { path = "../nu-color-config", version = "0.74.1" }
-reedline = { version = "0.14.0", features = ["bashisms", "sqlite"]}
+reedline = { version = "0.14.0", features = ["bashisms", "sqlite"] }
 
 atty = "0.2.14"
 chrono = { default-features = false, features = ["std"], version = "0.4.23" }
 crossterm = "0.24.0"
-fancy-regex = "0.10.0"
+fancy-regex = "0.11.0"
 fuzzy-matcher = "0.3.7"
 is_executable = "1.0.1"
 once_cell = "1.17.0"

crates/nu-cli/src/repl.rs

@@ -41,6 +41,7 @@ pub fn evaluate_repl(
     stack: &mut Stack,
     nushell_path: &str,
     prerun_command: Option<Spanned<String>>,
+    start_time: Instant,
 ) -> Result<()> {
     use reedline::{FileBackedHistory, Reedline, Signal};
 
@@ -307,6 +308,13 @@ pub fn evaluate_repl(
             column!()
         );
 
+        if entry_num == 1 && show_banner {
+            println!(
+                "Startup Time: {}",
+                format_duration(start_time.elapsed().as_nanos() as i64)
+            );
+        }
+
         let input = line_editor.read_line(prompt);
         let shell_integration = config.shell_integration;
 
@@ -578,15 +586,7 @@ Our {}Documentation{} is located at {}http://nushell.sh{}
 {}Tweet{} us at {}@nu_shell{}
 
 It's been this long since {}Nushell{}'s first commit:
-{}
+{}{}
-
-{}You can disable this banner using the {}config nu{}{} command
-to modify the config.nu file and setting show_banner to false.
-
-let-env config = {{
-    show_banner: false
-    ...
-}}{}
 "#,
         "\x1b[32m",   //start line 1 green
         "\x1b[32m",   //start line 2
@@ -618,11 +618,7 @@ let-env config = {{
         "\x1b[32m",   //before Nushell
         "\x1b[0m",    //after Nushell
         age,
-        "\x1b[2;37m", //before banner disable dim white
+        "\x1b[0m", //after banner disable
-        "\x1b[2;36m", //before config nu dim cyan
-        "\x1b[0m",    //after config nu
-        "\x1b[2;37m", //after config nu dim white
-        "\x1b[0m",    //after banner disable
     );
 
     banner

crates/nu-command/Cargo.toml

@@ -34,10 +34,7 @@ base64 = "0.21.0"
 byteorder = "1.4.3"
 bytesize = "1.1.0"
 calamine = "0.19.1"
-chrono = { version = "0.4.23", features = [
+chrono = { version = "0.4.23", features = ["unstable-locales", "std"], default-features = false }
-	"unstable-locales",
-	"std",
-], default-features = false }
 chrono-humanize = "0.2.1"
 chrono-tz = "0.6.3"
 crossterm = "0.24.0"
@@ -47,7 +44,7 @@ digest = { default-features = false, version = "0.10.0" }
 dtparse = "1.2.0"
 eml-parser = "0.1.0"
 encoding_rs = "0.8.30"
-fancy-regex = "0.10.0"
+fancy-regex = "0.11.0"
 filesize = "0.2.0"
 filetime = "0.2.15"
 fs_extra = "1.2.0"
@@ -59,9 +56,7 @@ Inflector = "0.11"
 is-root = "0.1.2"
 itertools = "0.10.0"
 log = "0.4.14"
-lscolors = { version = "0.12.0", features = [
+lscolors = { version = "0.12.0", features = ["crossterm"], default-features = false }
-	"crossterm",
-], default-features = false }
 md5 = { package = "md-5", version = "0.10.0" }
 mime = "0.3.16"
 mime_guess = "2.0.4"
@@ -147,20 +142,14 @@ features = [
 
 [target.'cfg(windows)'.dependencies.windows]
 version = "0.43.0"
-features = [
+features = ["Win32_Foundation", "Win32_Storage_FileSystem", "Win32_System_SystemServices"]
-	"Win32_Foundation",
-	"Win32_Storage_FileSystem",
-	"Win32_System_SystemServices",
-]
 
 [features]
 trash-support = ["trash"]
 which-support = ["which"]
 plugin = ["nu-parser/plugin"]
 dataframe = ["polars", "num", "sqlparser"]
-sqlite = [
+sqlite = ["rusqlite"]                      # TODO: given that rusqlite is included in reedline, should we just always include it?
-	"rusqlite",
-] # TODO: given that rusqlite is included in reedline, should we just always include it?
 
 [build-dependencies]
 shadow-rs = { version = "0.20.0", default-features = false }

src/main.rs

@@ -27,13 +27,15 @@ use nu_command::create_default_context;
 use nu_parser::{escape_for_script_arg, escape_quote_string};
 use nu_protocol::{util::BufferedReader, PipelineData, RawStream};
 use signals::{ctrlc_protection, sigquit_protection};
-use std::str::FromStr;
 use std::{
     io::BufReader,
+    str::FromStr,
     sync::{atomic::AtomicBool, Arc},
+    time::Instant,
 };
 
 fn main() -> Result<()> {
+    let start_time = Instant::now();
     let miette_hook = std::panic::take_hook();
     std::panic::set_hook(Box::new(move |x| {
         crossterm::terminal::disable_raw_mode().expect("unable to disable raw mode");
@@ -316,6 +318,7 @@ fn main() -> Result<()> {
             &mut stack,
             config_files::NUSHELL_FOLDER,
             parsed_nu_cli_args.execute,
+            start_time,
         );
         info!("repl eval {}:{}:{}", file!(), line!(), column!());