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24d7227e27
# Description Fixes #7301. # User-Facing Changes `return` can now be used in scripts without explicit `def main`. # Tests + Formatting Don't forget to add tests that cover your changes. (I'm not sure how to test this.) 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` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # After Submitting If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date.
76 lines
2.2 KiB
Rust
76 lines
2.2 KiB
Rust
use nu_engine::{eval_block_with_early_return, CallExt};
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, SyntaxShape, Type};
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/// Source a file for environment variables.
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#[derive(Clone)]
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pub struct Source;
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impl Command for Source {
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fn name(&self) -> &str {
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"source"
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}
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fn signature(&self) -> Signature {
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Signature::build("source")
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.input_output_types(vec![(Type::Any, Type::Any)])
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.required(
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"filename",
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SyntaxShape::Filepath,
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"the filepath to the script file to source",
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)
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.category(Category::Core)
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}
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fn usage(&self) -> &str {
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"Runs a script file in the current context."
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}
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fn extra_usage(&self) -> &str {
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r#"This command is a parser keyword. For details, check:
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https://www.nushell.sh/book/thinking_in_nu.html"#
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}
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fn is_parser_keyword(&self) -> bool {
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true
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}
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fn run(
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&self,
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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// Note: this hidden positional is the block_id that corresponded to the 0th position
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// it is put here by the parser
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let block_id: i64 = call.req_parser_info(engine_state, stack, 0)?;
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let block = engine_state.get_block(block_id as usize).clone();
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eval_block_with_early_return(
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engine_state,
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stack,
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&block,
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input,
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call.redirect_stdout,
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call.redirect_stderr,
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)
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}
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fn examples(&self) -> Vec<Example> {
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vec![
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Example {
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description: "Runs foo.nu in the current context",
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example: r#"source foo.nu"#,
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result: None,
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},
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Example {
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description: "Runs foo.nu in current context and call the command defined, suppose foo.nu has content: `def say-hi [] { echo 'Hi!' }`",
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example: r#"source ./foo.nu; say-hi"#,
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result: None,
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},
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]
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}
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}
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