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Rollup merge of rust-lang#106249 - Ezrashaw:suggest-test-tool, r=jyn514
Create "suggested tests" tool in `rustbuild` Not the claimed person in rust-lang#97339 but: I've done a very rough implementation of this feature in-tree. I'm very new to `rustc` development (outside of docs) so some help would be greatly appreciated. The UI of this new subcommand obviously will change and I need some mentoring with the `--run` flag. r? `@jyn514`
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| use std::str::FromStr; | ||
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|
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| use std::path::PathBuf; | ||
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|
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| use crate::{ | ||
| builder::{Builder, Kind}, | ||
| tool::Tool, | ||
| }; | ||
|
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| /// Suggests a list of possible `x.py` commands to run based on modified files in branch. | ||
| pub fn suggest(builder: &Builder<'_>, run: bool) { | ||
| let suggestions = | ||
| builder.tool_cmd(Tool::SuggestTests).output().expect("failed to run `suggest-tests` tool"); | ||
|
|
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| if !suggestions.status.success() { | ||
| println!("failed to run `suggest-tests` tool ({})", suggestions.status); | ||
| println!( | ||
| "`suggest_tests` stdout:\n{}`suggest_tests` stderr:\n{}", | ||
| String::from_utf8(suggestions.stdout).unwrap(), | ||
| String::from_utf8(suggestions.stderr).unwrap() | ||
| ); | ||
| panic!("failed to run `suggest-tests`"); | ||
| } | ||
|
|
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| let suggestions = String::from_utf8(suggestions.stdout).unwrap(); | ||
| let suggestions = suggestions | ||
| .lines() | ||
| .map(|line| { | ||
| let mut sections = line.split_ascii_whitespace(); | ||
|
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| // this code expects one suggestion per line in the following format: | ||
| // <x_subcommand> {some number of flags} [optional stage number] | ||
| let cmd = sections.next().unwrap(); | ||
| let stage = sections.next_back().map(|s| str::parse(s).ok()).flatten(); | ||
| let paths: Vec<PathBuf> = sections.map(|p| PathBuf::from_str(p).unwrap()).collect(); | ||
|
|
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| (cmd, stage, paths) | ||
| }) | ||
| .collect::<Vec<_>>(); | ||
|
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| if !suggestions.is_empty() { | ||
| println!("==== SUGGESTIONS ===="); | ||
| for sug in &suggestions { | ||
| print!("x {} ", sug.0); | ||
| if let Some(stage) = sug.1 { | ||
| print!("--stage {stage} "); | ||
| } | ||
|
|
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| for path in &sug.2 { | ||
| print!("{} ", path.display()); | ||
| } | ||
| println!(); | ||
| } | ||
| println!("====================="); | ||
| } else { | ||
| println!("No suggestions found!"); | ||
| return; | ||
| } | ||
|
|
||
| if run { | ||
| for sug in suggestions { | ||
| let mut build = builder.build.clone(); | ||
|
|
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| let builder = | ||
| Builder::new_standalone(&mut build, Kind::parse(&sug.0).unwrap(), sug.2, sug.1); | ||
|
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| builder.execute_cli() | ||
| } | ||
| } else { | ||
| println!("help: consider using the `--run` flag to automatically run suggested tests"); | ||
| } | ||
| } |
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