nushell/crates/nu-command/tests/commands/source_env.rs
JT 4af24363c2
remove let-env, focus on mutating $env (#9574)
# Description

For years, Nushell has used `let-env` to set a single environment
variable. As our work on scoping continued, we refined what it meant for
a variable to be in scope using `let` but never updated how `let-env`
would work. Instead, `let-env` confusingly created mutations to the
command's copy of `$env`.

So, to help fix the mental model and point people to the right way of
thinking about what changing the environment means, this PR removes
`let-env` to encourage people to think of it as updating the command's
environment variable via mutation.

Before:

```
let-env FOO = "BAR"
```

Now:

```
$env.FOO = "BAR"
```

It's also a good reminder that the environment owned by the command is
in the `$env` variable rather than global like it is in other shells.

# User-Facing Changes

BREAKING CHANGE BREAKING CHANGE

This completely removes `let-env FOO = "BAR"` so that we can focus on
`$env.FOO = "BAR"`.

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
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- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
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> toolkit check pr
> ```
-->

# After / Before Submitting
integration scripts to update:
- ✔️
[starship](https://github.com/starship/starship/blob/master/src/init/starship.nu)
- ✔️
[virtualenv](https://github.com/pypa/virtualenv/blob/main/src/virtualenv/activation/nushell/activate.nu)
- ✔️
[atuin](https://github.com/ellie/atuin/blob/main/atuin/src/shell/atuin.nu)
(PR: https://github.com/ellie/atuin/pull/1080)
- 
[zoxide](https://github.com/ajeetdsouza/zoxide/blob/main/templates/nushell.txt)
(PR: https://github.com/ajeetdsouza/zoxide/pull/587)
- ✔️
[oh-my-posh](https://github.com/JanDeDobbeleer/oh-my-posh/blob/main/src/shell/scripts/omp.nu)
(pr: https://github.com/JanDeDobbeleer/oh-my-posh/pull/4011)
2023-07-01 07:57:51 +12:00

328 lines
9.2 KiB
Rust

use nu_test_support::fs::AbsolutePath;
use nu_test_support::fs::Stub::{FileWithContent, FileWithContentToBeTrimmed};
use nu_test_support::nu;
use nu_test_support::pipeline;
use nu_test_support::playground::Playground;
#[should_panic]
#[test]
fn sources_also_files_under_custom_lib_dirs_path() {
Playground::setup("source_test_1", |dirs, nu| {
let file = AbsolutePath::new(dirs.test().join("config.toml"));
let library_path = AbsolutePath::new(dirs.test().join("lib"));
nu.with_config(&file);
nu.with_files(vec![FileWithContent(
"config.toml",
&format!(
r#"
lib_dirs = ["{library_path}"]
skip_welcome_message = true
"#
),
)]);
nu.within("lib").with_files(vec![FileWithContent(
"my_library.nu",
r#"
source-env my_library/main.nu
"#,
)]);
nu.within("lib/my_library").with_files(vec![FileWithContent(
"main.nu",
r#"
$env.hello = "hello nu"
"#,
)]);
let actual = nu!(
cwd: ".", pipeline(
r#"
source-env my_library.nu ;
hello
"#
));
assert_eq!(actual.out, "hello nu");
})
}
fn try_source_foo_with_double_quotes_in(testdir: &str, playdir: &str) {
Playground::setup(playdir, |dirs, sandbox| {
let testdir = String::from(testdir);
let mut foo_file = testdir.clone();
foo_file.push_str("/foo.nu");
sandbox.mkdir(&testdir);
sandbox.with_files(vec![FileWithContent(&foo_file, "echo foo")]);
let cmd = String::from("source-env ") + r#"""# + foo_file.as_str() + r#"""#;
let actual = nu!(cwd: dirs.test(), &cmd);
assert_eq!(actual.out, "foo");
});
}
fn try_source_foo_with_single_quotes_in(testdir: &str, playdir: &str) {
Playground::setup(playdir, |dirs, sandbox| {
let testdir = String::from(testdir);
let mut foo_file = testdir.clone();
foo_file.push_str("/foo.nu");
sandbox.mkdir(&testdir);
sandbox.with_files(vec![FileWithContent(&foo_file, "echo foo")]);
let cmd = String::from("source-env ") + r#"'"# + foo_file.as_str() + r#"'"#;
let actual = nu!(cwd: dirs.test(), &cmd);
assert_eq!(actual.out, "foo");
});
}
fn try_source_foo_without_quotes_in(testdir: &str, playdir: &str) {
Playground::setup(playdir, |dirs, sandbox| {
let testdir = String::from(testdir);
let mut foo_file = testdir.clone();
foo_file.push_str("/foo.nu");
sandbox.mkdir(&testdir);
sandbox.with_files(vec![FileWithContent(&foo_file, "echo foo")]);
let cmd = String::from("source-env ") + foo_file.as_str();
let actual = nu!(cwd: dirs.test(), &cmd);
assert_eq!(actual.out, "foo");
});
}
#[test]
fn sources_unicode_file_in_normal_dir() {
try_source_foo_with_single_quotes_in("foo", "source_test_1");
try_source_foo_with_double_quotes_in("foo", "source_test_2");
try_source_foo_without_quotes_in("foo", "source_test_3");
}
#[test]
fn sources_unicode_file_in_unicode_dir_without_spaces_1() {
try_source_foo_with_single_quotes_in("🚒", "source_test_4");
try_source_foo_with_double_quotes_in("🚒", "source_test_5");
try_source_foo_without_quotes_in("🚒", "source_test_6");
}
#[cfg(not(windows))] // ':' is not allowed in Windows paths
#[test]
fn sources_unicode_file_in_unicode_dir_without_spaces_2() {
try_source_foo_with_single_quotes_in(":fire_engine:", "source_test_7");
try_source_foo_with_double_quotes_in(":fire_engine:", "source_test_8");
try_source_foo_without_quotes_in(":fire_engine:", "source_test_9");
}
#[test]
fn sources_unicode_file_in_unicode_dir_with_spaces_1() {
// this one fails
try_source_foo_with_single_quotes_in("e-$ èрт🚒♞中片-j", "source_test_8");
// this one passes
try_source_foo_with_double_quotes_in("e-$ èрт🚒♞中片-j", "source_test_9");
}
#[cfg(not(windows))] // ':' is not allowed in Windows paths
#[test]
fn sources_unicode_file_in_unicode_dir_with_spaces_2() {
try_source_foo_with_single_quotes_in("e-$ èрт:fire_engine:♞中片-j", "source_test_10");
try_source_foo_with_double_quotes_in("e-$ èрт:fire_engine:♞中片-j", "source_test_11");
}
#[ignore]
#[test]
fn sources_unicode_file_in_non_utf8_dir() {
// How do I create non-UTF-8 path???
}
#[ignore]
#[test]
fn can_source_dynamic_path() {
Playground::setup("can_source_dynamic_path", |dirs, sandbox| {
let foo_file = "foo.nu";
sandbox.with_files(vec![FileWithContent(foo_file, "echo foo")]);
let cmd = format!("let file = `{foo_file}`; source-env $file");
let actual = nu!(cwd: dirs.test(), &cmd);
assert_eq!(actual.out, "foo");
});
}
#[test]
fn source_env_eval_export_env() {
Playground::setup("source_env_eval_export_env", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"spam.nu",
r#"
export-env { $env.FOO = 'foo' }
"#,
)]);
let inp = &[r#"source-env spam.nu"#, r#"$env.FOO"#];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert_eq!(actual.out, "foo");
})
}
#[test]
fn source_env_eval_export_env_hide() {
Playground::setup("source_env_eval_export_env", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"spam.nu",
r#"
export-env { hide-env FOO }
"#,
)]);
let inp = &[
r#"$env.FOO = 'foo'"#,
r#"source-env spam.nu"#,
r#"$env.FOO"#,
];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert!(actual.err.contains("not_found"));
})
}
#[test]
fn source_env_do_cd() {
Playground::setup("source_env_do_cd", |dirs, sandbox| {
sandbox
.mkdir("test1/test2")
.with_files(vec![FileWithContentToBeTrimmed(
"test1/test2/spam.nu",
r#"
cd test1/test2
"#,
)]);
let inp = &[
r#"source-env test1/test2/spam.nu"#,
r#"$env.PWD | path basename"#,
];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert_eq!(actual.out, "test2");
})
}
#[test]
fn source_env_do_cd_file_relative() {
Playground::setup("source_env_do_cd_file_relative", |dirs, sandbox| {
sandbox
.mkdir("test1/test2")
.with_files(vec![FileWithContentToBeTrimmed(
"test1/test2/spam.nu",
r#"
cd ($env.FILE_PWD | path join '..')
"#,
)]);
let inp = &[
r#"source-env test1/test2/spam.nu"#,
r#"$env.PWD | path basename"#,
];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert_eq!(actual.out, "test1");
})
}
#[test]
fn source_env_dont_cd_overlay() {
Playground::setup("source_env_dont_cd_overlay", |dirs, sandbox| {
sandbox
.mkdir("test1/test2")
.with_files(vec![FileWithContentToBeTrimmed(
"test1/test2/spam.nu",
r#"
overlay new spam
cd test1/test2
overlay hide spam
"#,
)]);
let inp = &[
r#"source-env test1/test2/spam.nu"#,
r#"$env.PWD | path basename"#,
];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert_eq!(actual.out, "source_env_dont_cd_overlay");
})
}
#[test]
fn source_env_is_scoped() {
Playground::setup("source_env_is_scoped", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"spam.nu",
r#"
def no-name-similar-to-this [] { 'no-name-similar-to-this' }
alias nor-similar-to-this = echo 'nor-similar-to-this'
"#,
)]);
let inp = &[r#"source-env spam.nu"#, r#"no-name-similar-to-this"#];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert!(actual.err.contains("executable was not found"));
let inp = &[r#"source-env spam.nu"#, r#"nor-similar-to-this"#];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert!(actual.err.contains("executable was not found"));
})
}
#[test]
fn source_env_const_file() {
Playground::setup("source_env_const_file", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"spam.nu",
r#"
$env.FOO = 'foo'
"#,
)]);
let inp = &[
r#"const file = 'spam.nu'"#,
r#"source-env $file"#,
r#"$env.FOO"#,
];
let actual = nu!(cwd: dirs.test(), pipeline(&inp.join("; ")));
assert_eq!(actual.out, "foo");
})
}
#[test]
fn source_respects_early_return() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
source early_return.nu
"#
));
assert!(actual.err.is_empty());
}