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chore: make deno --help more colorful (#21962)

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This commit adds coloring to "--help" flag.

Before:
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After:
91b035cc-f199-4cf4-a77c-f65b290b5e19
This commit is contained in:
Bartek Iwańczuk 2024-01-23 19:56:50 +01:00 • committed by GitHub
parent d1eed9896f
commit cc05dc142d
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3 changed files with 77 additions and 25 deletions
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79
cli/args/flags.rs
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@ -1,5 +1,6 @@
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use clap::builder::styling::AnsiColor;
use clap::builder::FalseyValueParser;
use clap::value_parser;
use clap::Arg;
@ -806,61 +807,82 @@ impl Flags {
}
}
static ENV_VARIABLES_HELP: &str = r#"ENVIRONMENT VARIABLES:
DENO_AUTH_TOKENS A semi-colon separated list of bearer tokens and
static ENV_VARIABLES_HELP: &str = color_print::cstr!(
r#"<y>Environment variables:</>
<g>DENO_AUTH_TOKENS</> A semi-colon separated list of bearer tokens and
hostnames to use when fetching remote modules from
private repositories
(e.g. "abcde12345@deno.land;54321edcba@github.com")
DENO_TLS_CA_STORE Comma-separated list of order dependent certificate
<g>DENO_TLS_CA_STORE</> Comma-separated list of order dependent certificate
stores. Possible values: "system", "mozilla".
Defaults to "mozilla".
DENO_CERT Load certificate authority from PEM encoded file
DENO_DIR Set the cache directory
DENO_INSTALL_ROOT Set deno install's output directory
<g>DENO_CERT</> Load certificate authority from PEM encoded file
<g>DENO_DIR</> Set the cache directory
<g>DENO_INSTALL_ROOT</> Set deno install's output directory
(defaults to $HOME/.deno/bin)
DENO_REPL_HISTORY Set REPL history file path
<g>DENO_REPL_HISTORY</> Set REPL history file path
History file is disabled when the value is empty
(defaults to $DENO_DIR/deno_history.txt)
DENO_NO_PACKAGE_JSON Disables auto-resolution of package.json
DENO_NO_PROMPT Set to disable permission prompts on access
<g>DENO_NO_PACKAGE_JSON</> Disables auto-resolution of package.json
<g>DENO_NO_PROMPT</> Set to disable permission prompts on access
(alternative to passing --no-prompt on invocation)
DENO_NO_UPDATE_CHECK Set to disable checking if a newer Deno version is
<g>DENO_NO_UPDATE_CHECK</> Set to disable checking if a newer Deno version is
available
DENO_V8_FLAGS Set V8 command line options
DENO_WEBGPU_TRACE Directory to use for wgpu traces
DENO_JOBS Number of parallel workers used for the --parallel
<g>DENO_V8_FLAGS</> Set V8 command line options
<g>DENO_WEBGPU_TRACE</> Directory to use for wgpu traces
<g>DENO_JOBS</> Number of parallel workers used for the --parallel
flag with the test subcommand. Defaults to number
of available CPUs.
HTTP_PROXY Proxy address for HTTP requests
<g>HTTP_PROXY</> Proxy address for HTTP requests
(module downloads, fetch)
HTTPS_PROXY Proxy address for HTTPS requests
<g>HTTPS_PROXY</> Proxy address for HTTPS requests
(module downloads, fetch)
NPM_CONFIG_REGISTRY URL to use for the npm registry.
NO_COLOR Set to disable color
NO_PROXY Comma-separated list of hosts which do not use a proxy
(module downloads, fetch)"#;
<g>NPM_CONFIG_REGISTRY</> URL to use for the npm registry.
<g>NO_COLOR</> Set to disable color
<g>NO_PROXY</> Comma-separated list of hosts which do not use a proxy
(module downloads, fetch)"#
);
static DENO_HELP: &str = concat!(
"A modern JavaScript and TypeScript runtime
color_print::cstr!("<g>A modern JavaScript and TypeScript runtime</>"),
"
Docs: https://deno.land/manual@v",
env!("CARGO_PKG_VERSION"),
"
color_print::cstr!(
"
Modules: https://deno.land/std/ https://deno.land/x/
Bugs: https://github.com/denoland/deno/issues
To start the REPL:
deno
<g>deno</>
To execute a script:
deno run https://examples.deno.land/hello-world.ts
<g>deno run https://examples.deno.land/hello-world.ts</>
To evaluate code in the shell:
deno eval \"console.log(30933 + 404)\"
<g>deno eval \"console.log(30933 + 404)\"</>
"
)
);
/// Main entry point for parsing deno's command line flags.
@ -971,7 +993,14 @@ fn clap_root() -> Command {
let mut cmd = Command::new("deno")
.bin_name("deno")
.color(ColorChoice::Never)
.styles(
clap::builder::Styles::styled()
.header(AnsiColor::Yellow.on_default())
.usage(AnsiColor::White.on_default())
.literal(AnsiColor::Green.on_default())
.placeholder(AnsiColor::Green.on_default())
)
.color(ColorChoice::Auto)
.max_term_width(80)
.version(crate::version::deno())
.long_version(long_version)