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denoland-deno/cli/flags.rs
2019-04-27 11:19:50 -07:00

356 lines
8.7 KiB
Rust

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use clap::{App, AppSettings, Arg, ArgMatches, SubCommand};
// Creates vector of strings, Vec<String>
#[cfg(test)]
macro_rules! svec {
($($x:expr),*) => (vec![$($x.to_string()),*]);
}
#[cfg_attr(feature = "cargo-clippy", allow(stutter))]
#[derive(Clone, Debug, PartialEq, Default)]
pub struct DenoFlags {
pub log_debug: bool,
pub version: bool,
pub reload: bool,
pub allow_read: bool,
pub allow_write: bool,
pub allow_net: bool,
pub allow_env: bool,
pub allow_run: bool,
pub allow_high_precision: bool,
pub no_prompts: bool,
pub v8_help: bool,
pub v8_flags: Option<Vec<String>>,
}
static ENV_VARIABLES_HELP: &str = "ENVIRONMENT VARIABLES:
DENO_DIR Set deno's base directory
NO_COLOR Set to disable color";
pub fn create_cli_app<'a, 'b>() -> App<'a, 'b> {
App::new("deno")
.bin_name("deno")
.global_settings(&[AppSettings::ColorNever])
.settings(&[
AppSettings::AllowExternalSubcommands,
AppSettings::DisableVersion,
]).after_help(ENV_VARIABLES_HELP)
.arg(
Arg::with_name("allow-read")
.long("allow-read")
.help("Allow file system read access"),
).arg(
Arg::with_name("allow-write")
.long("allow-write")
.help("Allow file system write access"),
).arg(
Arg::with_name("allow-net")
.long("allow-net")
.help("Allow network access"),
).arg(
Arg::with_name("allow-env")
.long("allow-env")
.help("Allow environment access"),
).arg(
Arg::with_name("allow-run")
.long("allow-run")
.help("Allow running subprocesses"),
).arg(
Arg::with_name("allow-high-precision")
.long("allow-high-precision")
.help("Allow high precision time measurement"),
).arg(
Arg::with_name("allow-all")
.short("A")
.long("allow-all")
.help("Allow all permissions"),
).arg(
Arg::with_name("no-prompt")
.long("no-prompt")
.help("Do not use prompts"),
).arg(
Arg::with_name("log-debug")
.short("D")
.long("log-debug")
.help("Log debug output"),
).arg(
Arg::with_name("reload")
.short("r")
.long("reload")
.help("Reload source code cache (recompile TypeScript)"),
).arg(
Arg::with_name("v8-options")
.long("v8-options")
.help("Print V8 command line options"),
).arg(
Arg::with_name("v8-flags")
.long("v8-flags")
.takes_value(true)
.use_delimiter(true)
.require_equals(true)
.help("Set V8 command line options"),
).subcommand(
SubCommand::with_name("version")
.setting(AppSettings::DisableVersion)
.about("Print the version"),
).subcommand(
SubCommand::with_name("fetch")
.setting(AppSettings::DisableVersion)
.about("Fetch the dependencies")
.arg(Arg::with_name("file").takes_value(true).required(true)),
).subcommand(
SubCommand::with_name("types")
.setting(AppSettings::DisableVersion)
.about("Print runtime TypeScript declarations"),
).subcommand(
SubCommand::with_name("info")
.setting(AppSettings::DisableVersion)
.about("Show source file related info")
.arg(Arg::with_name("file").takes_value(true).required(true)),
).subcommand(
SubCommand::with_name("eval")
.setting(AppSettings::DisableVersion)
.about("Eval script")
.arg(Arg::with_name("code").takes_value(true).required(true)),
).subcommand(
SubCommand::with_name("fmt")
.setting(AppSettings::DisableVersion)
.about("Format files")
.arg(
Arg::with_name("files")
.takes_value(true)
.multiple(true)
.required(true),
),
).subcommand(
// this is a fake subcommand - it's used in conjunction with
// AppSettings:AllowExternalSubcommand to treat it as an
// entry point script
SubCommand::with_name("<script>").about("Script to run"),
)
}
/// Parse ArgMatches into internal DenoFlags structure.
/// This method should not make any side effects.
#[cfg_attr(feature = "cargo-clippy", allow(stutter))]
pub fn parse_flags(matches: ArgMatches) -> DenoFlags {
let mut flags = DenoFlags::default();
if matches.is_present("log-debug") {
flags.log_debug = true;
}
if matches.is_present("version") {
flags.version = true;
}
if matches.is_present("reload") {
flags.reload = true;
}
if matches.is_present("allow-read") {
flags.allow_read = true;
}
if matches.is_present("allow-write") {
flags.allow_write = true;
}
if matches.is_present("allow-net") {
flags.allow_net = true;
}
if matches.is_present("allow-env") {
flags.allow_env = true;
}
if matches.is_present("allow-run") {
flags.allow_run = true;
}
if matches.is_present("allow-high-precision") {
flags.allow_high_precision = true;
}
if matches.is_present("allow-all") {
flags.allow_read = true;
flags.allow_env = true;
flags.allow_net = true;
flags.allow_run = true;
flags.allow_read = true;
flags.allow_write = true;
flags.allow_high_precision = true;
}
if matches.is_present("no-prompt") {
flags.no_prompts = true;
}
if matches.is_present("v8-options") {
flags.v8_help = true;
}
if matches.is_present("v8-flags") {
let v8_flags: Vec<String> = matches
.values_of("v8-flags")
.unwrap()
.map(String::from)
.collect();
flags.v8_flags = Some(v8_flags);
}
flags
}
#[cfg(test)]
mod tests {
use super::*;
fn flags_from_vec(args: Vec<String>) -> DenoFlags {
let cli_app = create_cli_app();
let matches = cli_app.get_matches_from(args);
parse_flags(matches)
}
#[test]
fn test_set_flags_1() {
let flags = flags_from_vec(svec!["deno", "version"]);
assert_eq!(
flags,
DenoFlags {
version: true,
..DenoFlags::default()
}
);
}
#[test]
fn test_set_flags_2() {
let flags = flags_from_vec(svec!["deno", "-r", "-D", "script.ts"]);
assert_eq!(
flags,
DenoFlags {
log_debug: true,
reload: true,
..DenoFlags::default()
}
);
}
#[test]
fn test_set_flags_3() {
let flags =
flags_from_vec(svec!["deno", "-r", "--allow-write", "script.ts"]);
assert_eq!(
flags,
DenoFlags {
reload: true,
allow_write: true,
..DenoFlags::default()
}
);
}
#[test]
fn test_set_flags_4() {
let flags =
flags_from_vec(svec!["deno", "-Dr", "--allow-write", "script.ts"]);
assert_eq!(
flags,
DenoFlags {
log_debug: true,
reload: true,
allow_write: true,
..DenoFlags::default()
}
);
}
#[test]
fn test_set_flags_5() {
let flags = flags_from_vec(svec!["deno", "--v8-options"]);
assert_eq!(
flags,
DenoFlags {
v8_help: true,
..DenoFlags::default()
}
);
let flags =
flags_from_vec(svec!["deno", "--v8-flags=--expose-gc,--gc-stats=1"]);
assert_eq!(
flags,
DenoFlags {
v8_flags: Some(svec!["--expose-gc", "--gc-stats=1"]),
..DenoFlags::default()
}
);
}
#[test]
fn test_set_flags_6() {
let flags =
flags_from_vec(svec!["deno", "--allow-net", "gist.ts", "--title", "X"]);
assert_eq!(
flags,
DenoFlags {
allow_net: true,
..DenoFlags::default()
}
)
}
#[test]
fn test_set_flags_7() {
let flags = flags_from_vec(svec!["deno", "--allow-all", "gist.ts"]);
assert_eq!(
flags,
DenoFlags {
allow_net: true,
allow_env: true,
allow_run: true,
allow_read: true,
allow_write: true,
allow_high_precision: true,
..DenoFlags::default()
}
)
}
#[test]
fn test_set_flags_8() {
let flags = flags_from_vec(svec!["deno", "--allow-read", "gist.ts"]);
assert_eq!(
flags,
DenoFlags {
allow_read: true,
..DenoFlags::default()
}
)
}
#[test]
fn test_set_flags_9() {
let flags =
flags_from_vec(svec!["deno", "--allow-high-precision", "script.ts"]);
assert_eq!(
flags,
DenoFlags {
allow_high_precision: true,
..DenoFlags::default()
}
)
}
#[test]
fn test_set_flags_10() {
// notice that flags passed after script name will not
// be parsed to DenoFlags but instead forwarded to
// script args as Deno.args
let flags = flags_from_vec(svec![
"deno",
"--allow-write",
"script.ts",
"-D",
"--allow-net"
]);
assert_eq!(
flags,
DenoFlags {
allow_write: true,
..DenoFlags::default()
}
)
}
}