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use std::env;
use crate::entry_point::Config;
#[cfg(test)]
mod tests;
pub fn override_environment_variables_from_command_line_args() {
println!("\n Start of Reading Command Line Arguments Section");
let args = env::args().collect();
let params = CommandLineArgument::get_command_line_arg_list();
CommandLineArgument::_parse(args, params);
println!(" End of Reading Command Line Arguments\n");
}
pub struct CommandLineArgument {
pub short_form: String,
pub long_form: String,
pub environment_variable: String,
pub _hint: Option<String>,
}
impl CommandLineArgument {
pub fn get_command_line_arg_list() -> Vec<CommandLineArgument> {
let mut argument_list : Vec<CommandLineArgument> = vec![];
let argument = CommandLineArgument {
short_form: "p".to_string(),
long_form: "port".to_string(),
environment_variable: Config::RWS_CONFIG_PORT.to_string(),
_hint: Some("Port".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "i".to_string(),
long_form: "ip".to_string(),
environment_variable: Config::RWS_CONFIG_IP.to_string(),
_hint: Some("IP or domain".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "t".to_string(),
long_form: "thread-count".to_string(),
environment_variable: Config::RWS_CONFIG_THREAD_COUNT.to_string(),
_hint: Some("Number of threads".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "a".to_string(),
long_form: "cors-allow-all".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_ALLOW_ALL.to_string(),
_hint: Some("If set to true, will allow all CORS requests, other CORS properties will be ignored".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "o".to_string(),
long_form: "cors-allow-origins".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_ALLOW_ORIGINS.to_string(),
_hint: Some("Comma separated list of allowed origins, example: https://foo.example,https://bar.example".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "m".to_string(),
long_form: "cors-allow-methods".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_ALLOW_METHODS.to_string(),
_hint: Some("Comma separated list of allowed methods, example: POST,PUT".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "h".to_string(),
long_form: "cors-allow-headers".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_ALLOW_HEADERS.to_string(),
_hint: Some("Comma separated list of allowed request headers, in lowercase, example: content-type,x-custom-header".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "c".to_string(),
long_form: "cors-allow-credentials".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_ALLOW_CREDENTIALS.to_string(),
_hint: Some("If set to true, will allow to transmit credentials via CORS requests".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "e".to_string(),
long_form: "cors-expose-headers".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_EXPOSE_HEADERS.to_string(),
_hint: Some("Comma separated list of allowed response headers, in lowercase, example: content-type,x-custom-header".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "g".to_string(),
long_form: "cors-max-age".to_string(),
environment_variable: Config::RWS_CONFIG_CORS_MAX_AGE.to_string(),
_hint: Some("How long results of preflight requests can be cached (in seconds)".to_string())
};
argument_list.push(argument);
let argument = CommandLineArgument {
short_form: "r".to_string(),
long_form: "request-allocation-size-in-bytes".to_string(),
environment_variable: Config::RWS_CONFIG_REQUEST_ALLOCATION_SIZE_IN_BYTES.to_string(),
_hint: Some("In bytes, how much memory to allocate for each request".to_string())
};
argument_list.push(argument);
argument_list
}
pub fn _parse(args: Vec<String>, argument_list : Vec<CommandLineArgument>) -> Vec<CommandLineArgument> {
for unparsed_argument in args.iter() {
let boxed_split = unparsed_argument.split_once('=');
if boxed_split.is_some() {
let (parameter, value) = boxed_split.unwrap();
println!("\n {}={}", parameter, value);
let boxed_predefined_argument =
argument_list
.iter()
.find(
|predefined_argument| {
let short_form = predefined_argument.short_form.to_string();
let long_form = predefined_argument.long_form.to_string();
let _param_short_form = ["-", &short_form].join("");
let _param_long_form = ["--", &long_form].join("");
parameter.eq(_param_short_form.as_str()) ||
parameter.eq(_param_long_form.as_str())
});
if boxed_predefined_argument.is_some() {
let predefined_argument = boxed_predefined_argument.unwrap();
CommandLineArgument::set_environment_variable(predefined_argument, value.to_string());
}
}
}
argument_list
}
pub fn set_environment_variable(argument: &CommandLineArgument, value: String) {
env::set_var(&argument.environment_variable, &value);
println!(" Set env variable '{}' to value '{}'", argument.environment_variable, &value);
}
}