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fix prompts on startup (#3056)

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* fix prompts on startup

* Try again
This commit is contained in:
Jonathan Turner 2021-02-15 20:14:16 +13:00 committed by GitHub
parent c3d2c61729
commit b202951c1d
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 109 additions and 214 deletions
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6
crates/nu-cli/src/cli.rs
View File

@ -29,7 +29,7 @@ use rustyline::{self, error::ReadlineError};
use crate::EnvironmentSyncer;
use nu_errors::ShellError;
use nu_parser::ParserScope;
use nu_protocol::{UntaggedValue, Value};
use nu_protocol::{hir::ExternalRedirection, UntaggedValue, Value};
use std::error::Error;
use std::iter::Iterator;
@ -158,7 +158,9 @@ pub async fn cli(mut context: EvaluationContext) -> Result<(), Box<dyn Error>> {
let prompt_line = prompt.as_string()?;
context.scope.enter_scope();
let (prompt_block, err) = nu_parser::parse(&prompt_line, 0, &context.scope);
let (mut prompt_block, err) = nu_parser::parse(&prompt_line, 0, &context.scope);
prompt_block.set_redirect(ExternalRedirection::Stdout);
if err.is_some() {
context.scope.exit_scope();

258
crates/nu-cli/src/env/environment_syncer.rs vendored
View File

@ -74,63 +74,50 @@ impl EnvironmentSyncer {
}
pub fn sync_env_vars(&mut self, ctx: &mut EvaluationContext) {
let mut environment = self.env.lock();
let nu_env_vars = ctx.scope.get_env_vars();
if environment.env().is_some() {
for (name, value) in ctx.with_host(|host| host.vars()) {
if name != "path" && name != "PATH" {
// account for new env vars present in the current session
// that aren't loaded from config.
environment.add_env(&name, &value);
// clear the env var from the session
// we are about to replace them
ctx.with_host(|host| host.env_rm(std::ffi::OsString::from(name)));
}
}
if let Some(variables) = environment.env() {
for var in variables.row_entries() {
if let Ok(string) = var.1.as_string() {
ctx.with_host(|host| {
host.env_set(
std::ffi::OsString::from(var.0),
std::ffi::OsString::from(string),
)
});
let environment = self.env.lock();
if let Some(variables) = environment.env() {
for var in variables.row_entries() {
if let Ok(string) = var.1.as_string() {
if var.0 != "path" && var.0 != "PATH" && !nu_env_vars.contains_key(var.0) {
ctx.scope.add_env_var(var.0, string);
}
}
}
}
let nu_env_vars = ctx.scope.get_env_vars();
for (name, value) in ctx.with_host(|host| host.vars()) {
if name != "path" && name != "PATH" && !nu_env_vars.contains_key(&name) {
ctx.scope.add_env_var(name, value);
}
}
}
pub fn sync_path_vars(&mut self, ctx: &mut EvaluationContext) {
let mut environment = self.env.lock();
if environment.path().is_some() {
let native_paths = ctx.with_host(|host| host.env_get(std::ffi::OsString::from("PATH")));
let native_paths = ctx.with_host(|host| host.env_get(std::ffi::OsString::from("PATH")));
if let Some(native_paths) = native_paths {
environment.add_path(native_paths);
ctx.with_host(|host| {
host.env_rm(std::ffi::OsString::from("PATH"));
});
if let Some(native_paths) = native_paths {
for path in std::env::split_paths(&native_paths) {
environment.add_path(path.as_os_str().to_os_string());
}
}
if let Some(new_paths) = environment.path() {
let prepared = std::env::join_paths(
new_paths
.table_entries()
.map(|p| p.as_string())
.filter_map(Result::ok),
);
if let Some(new_paths) = environment.path() {
let prepared = std::env::join_paths(
new_paths
.table_entries()
.map(|p| p.as_string())
.filter_map(Result::ok),
);
if let Ok(paths_ready) = prepared {
ctx.with_host(|host| {
host.env_set(std::ffi::OsString::from("PATH"), paths_ready);
});
}
if let Ok(paths_ready) = prepared {
ctx.scope
.add_env_var("PATH", paths_ready.to_string_lossy().to_string());
}
}
}
@ -156,7 +143,6 @@ mod tests {
use indexmap::IndexMap;
use nu_data::config::tests::FakeConfig;
use nu_engine::basic_evaluation_context;
use nu_engine::Env;
use nu_errors::ShellError;
use nu_test_support::fs::Stub::FileWithContent;
use nu_test_support::playground::Playground;
@ -214,25 +200,6 @@ mod tests {
actual.load_environment();
actual.sync_env_vars(&mut ctx);
{
let environment = actual.env.lock();
let mut vars = IndexMap::new();
environment
.env()
.expect("No variables in the environment.")
.row_entries()
.for_each(|(name, value)| {
vars.insert(
name.to_string(),
value.as_string().expect("Couldn't convert to string"),
);
});
for k in expected.keys() {
assert!(vars.contains_key(k));
}
}
assert!(!actual.did_config_change());
// Replacing the newer configuration file to the existing one.
@ -246,26 +213,12 @@ mod tests {
actual.reload();
actual.sync_env_vars(&mut ctx);
expected.insert("USER".to_string(), "NUNO".to_string());
let env_vars = ctx.scope.get_env_vars();
let result = env_vars.get("SHELL").unwrap();
assert_eq!(result, "/usr/bin/you_already_made_the_nu_choice");
{
let environment = actual.env.lock();
let mut vars = IndexMap::new();
environment
.env()
.expect("No variables in the environment.")
.row_entries()
.for_each(|(name, value)| {
vars.insert(
name.to_string(),
value.as_string().expect("Couldn't convert to string"),
);
});
for k in expected.keys() {
assert!(vars.contains_key(k));
}
}
let result = env_vars.get("USER").unwrap();
assert_eq!(result, "NUNO");
});
Ok(())
@ -325,48 +278,12 @@ mod tests {
// Nu sees the missing "USER" variable and accounts for it.
actual.sync_env_vars(&mut ctx);
// Confirms session environment variables are replaced from Nu configuration file
// including the newer one accounted for.
ctx.with_host(|test_host| {
let var_user = test_host
.env_get(std::ffi::OsString::from("USER"))
.expect("Couldn't get USER var from host.")
.into_string()
.expect("Couldn't convert to string.");
let env_vars = ctx.scope.get_env_vars();
let result = env_vars.get("SHELL").unwrap();
assert_eq!(result, "/usr/bin/you_already_made_the_nu_choice");
let var_shell = test_host
.env_get(std::ffi::OsString::from("SHELL"))
.expect("Couldn't get SHELL var from host.")
.into_string()
.expect("Couldn't convert to string.");
let mut found = IndexMap::new();
found.insert("SHELL".to_string(), var_shell);
found.insert("USER".to_string(), var_user);
for k in found.keys() {
assert!(expected.contains_key(k));
}
});
// Now confirm in-memory environment variables synced appropriately
// including the newer one accounted for.
let environment = actual.env.lock();
let mut vars = IndexMap::new();
environment
.env()
.expect("No variables in the environment.")
.row_entries()
.for_each(|(name, value)| {
vars.insert(
name.to_string(),
value.as_string().expect("Couldn't convert to string"),
);
});
for k in expected.keys() {
assert!(vars.contains_key(k));
}
let result = env_vars.get("USER").unwrap();
assert_eq!(result, "NUNO");
});
Ok(())
}
@ -376,12 +293,6 @@ mod tests {
let mut ctx = basic_evaluation_context()?;
ctx.host = Arc::new(Mutex::new(Box::new(nu_engine::FakeHost::new())));
let mut expected = IndexMap::new();
expected.insert(
"SHELL".to_string(),
"/usr/bin/you_already_made_the_nu_choice".to_string(),
);
Playground::setup("syncs_env_test_2", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContent(
"configuration.toml",
@ -410,37 +321,10 @@ mod tests {
actual.load_environment();
actual.sync_env_vars(&mut ctx);
ctx.with_host(|test_host| {
let var_shell = test_host
.env_get(std::ffi::OsString::from("SHELL"))
.expect("Couldn't get SHELL var from host.")
.into_string()
.expect("Couldn't convert to string.");
let env_vars = ctx.scope.get_env_vars();
let result = env_vars.get("SHELL").unwrap();
let mut found = IndexMap::new();
found.insert("SHELL".to_string(), var_shell);
for k in found.keys() {
assert!(expected.contains_key(k));
}
});
let environment = actual.env.lock();
let mut vars = IndexMap::new();
environment
.env()
.expect("No variables in the environment.")
.row_entries()
.for_each(|(name, value)| {
vars.insert(
name.to_string(),
value.as_string().expect("couldn't convert to string"),
);
});
for k in expected.keys() {
assert!(vars.contains_key(k));
}
assert_eq!(result, "/usr/bin/you_already_made_the_nu_choice");
});
Ok(())
@ -502,32 +386,10 @@ mod tests {
// Nu sees the missing "/path/to/be/added" and accounts for it.
actual.sync_path_vars(&mut ctx);
ctx.with_host(|test_host| {
let actual = test_host
.env_get(std::ffi::OsString::from("PATH"))
.expect("Couldn't get PATH var from host.")
.into_string()
.expect("Couldn't convert to string.");
let env_vars = ctx.scope.get_env_vars();
let paths = env_vars.get("PATH").unwrap();
assert_eq!(actual, expected);
});
let environment = actual.env.lock();
let paths = std::env::join_paths(
&environment
.path()
.expect("No path variable in the environment.")
.table_entries()
.map(|value| value.as_string().expect("Couldn't convert to string"))
.map(PathBuf::from)
.collect::<Vec<_>>(),
)
.expect("Couldn't join paths.")
.into_string()
.expect("Couldn't convert to string.");
assert_eq!(paths, expected);
assert_eq!(paths, &expected);
});
Ok(())
@ -576,32 +438,10 @@ mod tests {
actual.load_environment();
actual.sync_path_vars(&mut ctx);
ctx.with_host(|test_host| {
let actual = test_host
.env_get(std::ffi::OsString::from("PATH"))
.expect("Couldn't get PATH var from host.")
.into_string()
.expect("Couldn't convert to string.");
let env_vars = ctx.scope.get_env_vars();
let paths = env_vars.get("PATH").unwrap();
assert_eq!(actual, expected);
});
let environment = actual.env.lock();
let paths = std::env::join_paths(
&environment
.path()
.expect("No path variable in the environment.")
.table_entries()
.map(|value| value.as_string().expect("Couldn't convert to string"))
.map(PathBuf::from)
.collect::<Vec<_>>(),
)
.expect("Couldn't join paths.")
.into_string()
.expect("Couldn't convert to string.");
assert_eq!(paths, expected);
assert_eq!(paths, &expected);
});
Ok(())

10
crates/nu-command/src/commands/with_env.rs
View File

@ -69,9 +69,17 @@ impl WholeStreamCommand for WithEnv {
}
async fn with_env(raw_args: CommandArgs) -> Result<OutputStream, ShellError> {
let redirection = raw_args.call_info.args.external_redirection;
let context = EvaluationContext::from_args(&raw_args);
let (WithEnvArgs { variable, block }, input) = raw_args.process().await?;
let (
WithEnvArgs {
variable,
mut block,
},
input,
) = raw_args.process().await?;
block.block.set_redirect(redirection);
let mut env = IndexMap::new();
match &variable.value {

1
crates/nu-command/src/script.rs
View File

@ -186,7 +186,6 @@ pub async fn process_script(
ctx.scope.add_env(env);
let result = run_block(&block, ctx, input_stream).await;
match result {
Ok(input) => {
// Running a pipeline gives us back a stream that we can then

3
crates/nu-engine/src/evaluate/scope.rs
View File

@ -176,7 +176,8 @@ impl Scope {
pub fn add_env_var(&self, name: impl Into<String>, value: String) {
if let Some(frame) = self.frames.lock().last_mut() {
frame.env.insert(name.into(), value);
let name = name.into();
frame.env.insert(name, value);
}
}

45
tests/shell/pipeline/commands/internal.rs
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@ -220,6 +220,51 @@ fn autoenv() {
})
}
// #[cfg(feature = "which")]
// #[test]
// fn nu_let_env_overwrites() {
// Playground::setup("syncs_env_test_1", |dirs, sandbox| {
// sandbox.with_files(vec![FileWithContent(
// "configuration.toml",
// r#"
// [env]
// SHELL = "/usr/bin/you_already_made_the_nu_choice"
// "#,
// )]);
// let mut file = dirs.test().clone();
// file.push("configuration.toml");
// let fake_config = FakeConfig::new(&file);
// let mut actual = EnvironmentSyncer::new();
// actual.set_config(Box::new(fake_config));
// // Here, the environment variables from the current session
// // are cleared since we will load and set them from the
// // configuration file (if any)
// actual.clear_env_vars(&mut ctx);
// // Nu loads the environment variables from the configuration file (if any)
// actual.load_environment();
// // By this point, Nu has already loaded the environment variables
// // stored in the configuration file. Before continuing we check
// // if any new environment variables have been added from the ones loaded
// // in the configuration file.
// //
// // Nu sees the missing "USER" variable and accounts for it.
// actual.sync_env_vars(&mut ctx);
// let actual = nu!(
// cwd: dirs.test(),
// r#"let-env SHELL = bob
// echo $nu.env.SHELL
// "#
// );
// assert!(actual.out.ends_with("set_in_foo"))
// });
// }
#[test]
fn invocation_properly_redirects() {
let actual = nu!(