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4af24363c2
# 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 fmt --all` applies these changes) - `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 automatically > 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)
291 lines
7.9 KiB
Rust
291 lines
7.9 KiB
Rust
use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
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use nu_test_support::playground::Playground;
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use nu_test_support::{nu, nu_repl_code, pipeline};
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use pretty_assertions::assert_eq;
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#[cfg(feature = "which-support")]
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mod environment;
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mod pipeline;
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//FIXME: jt: we need to focus some fixes on wix as the plugins will differ
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#[ignore]
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#[test]
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fn plugins_are_declared_with_wix() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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open Cargo.toml
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| get bin.name
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| str replace "nu_plugin_(extra|core)_(.*)" "nu_plugin_$2"
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| drop
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| sort-by
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| wrap cargo | merge {
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open wix/main.wxs --raw | from xml
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| get Wix.children.Product.children.0.Directory.children.0
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| where Directory.attributes.Id == "$(var.PlatformProgramFilesFolder)"
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| get Directory.children.Directory.children.0 | last
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| get Directory.children.Component.children
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| each { |it| echo $it | first }
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| skip
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| where File.attributes.Name =~ "nu_plugin"
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| str substring [_, -4] File.attributes.Name
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| get File.attributes.Name
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| sort-by
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| wrap wix
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}
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| default wix _
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| each { |it| if $it.wix != $it.cargo { 1 } { 0 } }
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| math sum
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"#
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));
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assert_eq!(actual.out, "0");
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}
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#[test]
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#[cfg(not(windows))]
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fn do_not_panic_if_broken_pipe() {
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// `nu -h | false`
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// used to panic with a BrokenPipe error
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let child_output = std::process::Command::new("sh")
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.arg("-c")
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.arg(format!(
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"{:?} -h | false",
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nu_test_support::fs::executable_path()
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))
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.output()
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.expect("failed to execute process");
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assert!(child_output.stderr.is_empty());
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}
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#[test]
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fn nu_lib_dirs_repl() {
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Playground::setup("nu_lib_dirs_repl", |dirs, sandbox| {
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sandbox
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.mkdir("scripts")
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.with_files(vec![FileWithContentToBeTrimmed(
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"scripts/foo.nu",
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r#"
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$env.FOO = "foo"
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"#,
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)]);
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let inp_lines = &[
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r#"$env.NU_LIB_DIRS = [ ('scripts' | path expand) ]"#,
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r#"source-env foo.nu"#,
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r#"$env.FOO"#,
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];
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let actual_repl = nu!(cwd: dirs.test(), nu_repl_code(inp_lines));
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assert!(actual_repl.err.is_empty());
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assert_eq!(actual_repl.out, "foo");
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})
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}
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#[test]
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fn nu_lib_dirs_script() {
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Playground::setup("nu_lib_dirs_script", |dirs, sandbox| {
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sandbox
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.mkdir("scripts")
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.with_files(vec![FileWithContentToBeTrimmed(
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"scripts/foo.nu",
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r#"
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$env.FOO = "foo"
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"#,
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)])
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.with_files(vec![FileWithContentToBeTrimmed(
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"main.nu",
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r#"
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source-env foo.nu
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"#,
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)]);
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let inp_lines = &[
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r#"$env.NU_LIB_DIRS = [ ('scripts' | path expand) ]"#,
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r#"source-env main.nu"#,
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r#"$env.FOO"#,
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];
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let actual_repl = nu!(cwd: dirs.test(), nu_repl_code(inp_lines));
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assert!(actual_repl.err.is_empty());
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assert_eq!(actual_repl.out, "foo");
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})
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}
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#[test]
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fn nu_lib_dirs_relative_repl() {
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Playground::setup("nu_lib_dirs_relative_repl", |dirs, sandbox| {
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sandbox
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.mkdir("scripts")
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.with_files(vec![FileWithContentToBeTrimmed(
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"scripts/foo.nu",
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r#"
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$env.FOO = "foo"
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"#,
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)]);
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let inp_lines = &[
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r#"$env.NU_LIB_DIRS = [ 'scripts' ]"#,
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r#"source-env foo.nu"#,
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r#"$env.FOO"#,
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];
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let actual_repl = nu!(cwd: dirs.test(), nu_repl_code(inp_lines));
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assert!(actual_repl.err.is_empty());
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assert_eq!(actual_repl.out, "foo");
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})
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}
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// TODO: add absolute path tests after we expand const capabilities (see #8310)
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#[test]
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fn const_nu_lib_dirs_relative() {
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Playground::setup("const_nu_lib_dirs_relative", |dirs, sandbox| {
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sandbox
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.mkdir("scripts")
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.with_files(vec![FileWithContentToBeTrimmed(
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"scripts/foo.nu",
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r#"
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$env.FOO = "foo"
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"#,
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)])
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.with_files(vec![FileWithContentToBeTrimmed(
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"main.nu",
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r#"
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const NU_LIB_DIRS = [ 'scripts' ]
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source-env foo.nu
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$env.FOO
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"#,
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)]);
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let outcome = nu!(cwd: dirs.test(), "source main.nu");
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assert!(outcome.err.is_empty());
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assert_eq!(outcome.out, "foo");
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})
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}
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#[test]
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fn nu_lib_dirs_relative_script() {
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Playground::setup("nu_lib_dirs_relative_script", |dirs, sandbox| {
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sandbox
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.mkdir("scripts")
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.with_files(vec![FileWithContentToBeTrimmed(
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"scripts/main.nu",
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r#"
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source-env ../foo.nu
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"#,
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)])
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.with_files(vec![FileWithContentToBeTrimmed(
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"foo.nu",
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r#"
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$env.FOO = "foo"
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"#,
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)]);
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let inp_lines = &[
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r#"$env.NU_LIB_DIRS = [ 'scripts' ]"#,
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r#"source-env scripts/main.nu"#,
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r#"$env.FOO"#,
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];
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let actual_repl = nu!(cwd: dirs.test(), nu_repl_code(inp_lines));
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assert!(actual_repl.err.is_empty());
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assert_eq!(actual_repl.out, "foo");
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})
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}
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#[test]
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fn run_script_that_looks_like_module() {
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Playground::setup("run_script_that_looks_like_module", |dirs, _| {
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let inp_lines = &[
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r#"module spam { export def eggs [] { 'eggs' } }"#,
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r#"export use spam eggs"#,
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r#"export def foo [] { eggs }"#,
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r#"export alias bar = foo"#,
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r#"export def-env baz [] { bar }"#,
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r#"baz"#,
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];
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let actual = nu!(cwd: dirs.test(), inp_lines.join("; "));
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assert_eq!(actual.out, "eggs");
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})
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}
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#[test]
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fn run_export_extern() {
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Playground::setup("run_script_that_looks_like_module", |dirs, _| {
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let inp_lines = &[r#"export extern foo []"#, r#"help foo"#];
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let actual = nu!(cwd: dirs.test(), inp_lines.join("; "));
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assert!(actual.out.contains("Usage"));
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})
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}
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#[test]
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#[cfg(not(windows))]
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fn run_in_login_mode() {
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let child_output = std::process::Command::new("sh")
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.arg("-c")
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.arg(format!(
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"{:?} -l -c 'echo $nu.is-login'",
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nu_test_support::fs::executable_path()
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))
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.output()
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.expect("true");
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assert!(child_output.stderr.is_empty());
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}
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#[test]
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#[cfg(not(windows))]
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fn run_in_not_login_mode() {
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let child_output = std::process::Command::new("sh")
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.arg("-c")
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.arg(format!(
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"{:?} -c 'echo $nu.is-login'",
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nu_test_support::fs::executable_path()
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))
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.output()
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.expect("false");
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assert!(child_output.stderr.is_empty());
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}
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#[test]
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#[cfg(not(windows))]
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fn run_in_interactive_mode() {
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let child_output = std::process::Command::new("sh")
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.arg("-c")
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.arg(format!(
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"{:?} -i -c 'echo $nu.is-interactive'",
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nu_test_support::fs::executable_path()
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))
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.output()
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.expect("true");
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assert!(child_output.stderr.is_empty());
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}
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#[test]
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#[cfg(not(windows))]
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fn run_in_noninteractive_mode() {
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let child_output = std::process::Command::new("sh")
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.arg("-c")
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.arg(format!(
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"{:?} -c 'echo $nu.is-interactive'",
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nu_test_support::fs::executable_path()
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))
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.output()
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.expect("false");
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assert!(child_output.stderr.is_empty());
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}
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