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add .save

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This commit is contained in:
Bartek Iwańczuk 2022-11-25 15:48:17 +01:00
parent c38599415e
commit 5804d38d3b
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1 changed files with 15 additions and 3 deletions
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18
cli/tools/repl/mod.rs
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@ -2,6 +2,7 @@
use crate::create_main_worker;
use crate::proc_state::ProcState;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
use deno_core::ModuleSpecifier;
use deno_runtime::permissions::Permissions;
@ -80,6 +81,7 @@ fn print_help() {
.help Print this message
.restart Create a new session without exiting the REPL
.exit Exit the REPL
.save Save the current session to a file"
"#;
print!("{}", help_text);
@ -92,7 +94,7 @@ async fn create_repl_session(
maybe_eval: Option<String>,
) -> Result<ReplSession, AnyError> {
let mut worker = create_main_worker(
&ps,
ps,
module_url.clone(),
Permissions::from_options(&ps.options.permissions_options())?,
)
@ -159,6 +161,8 @@ pub async fn run(
println!("Deno {}", crate::version::deno());
println!("exit using ctrl+d, ctrl+c, or close()");
let mut session_history: Vec<String> = vec![];
loop {
let line = read_line_and_poll(
&mut repl_session,
@ -171,7 +175,7 @@ pub async fn run(
should_exit_on_interrupt = false;
editor.update_history(line.clone());
match &line {
match line.as_str() {
".restart" => {
println!(
"Started a new REPL session. Global scope has been reset."
@ -192,9 +196,17 @@ pub async fn run(
".exit" => {
break;
}
".save" => {
let filename =
format!("./repl-{}.ts", chrono::Local::now().to_rfc3339());
std::fs::write(&filename, session_history.join("\n"))
.context("Unable to save session file")?;
println!("Saved session to {}", filename);
}
line => {
session_history.push(line.to_string());
let output =
repl_session.evaluate_line_and_get_output(&line).await?;
repl_session.evaluate_line_and_get_output(line).await?;
// We check for close and break here instead of making it a loop condition to get
// consistent behavior in when the user evaluates a call to close().