update suggest-tests

Author: pietroalbini

Diff for: src/bootstrap/src/core/build_steps/suggest.rs

@@ -9,8 +9,13 @@ use crate::core::builder::Builder;
 
 /// 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");
+    let git_config = builder.config.git_config();
+    let suggestions = builder
+        .tool_cmd(Tool::SuggestTests)
+        .env("SUGGEST_TESTS_GITHUB_REPOSITORY", git_config.github_repository)
+        .env("SUGGEST_TESTS_NIGHTLY_BRANCH", git_config.nightly_branch)
+        .output()
+        .expect("failed to run `suggest-tests` tool");
 
     if !suggestions.status.success() {
         println!("failed to run `suggest-tests` tool ({})", suggestions.status);

Diff for: src/tools/suggest-tests/src/main.rs

@@ -1,10 +1,17 @@
 use std::process::ExitCode;
 
-use build_helper::git::get_git_modified_files;
+use build_helper::git::{get_git_modified_files, GitConfig};
 use suggest_tests::get_suggestions;
 
 fn main() -> ExitCode {
-    let modified_files = get_git_modified_files(None, &Vec::new());
+    let modified_files = get_git_modified_files(
+        &GitConfig {
+            github_repository: &env("SUGGEST_TESTS_GITHUB_REPOSITORY"),
+            nightly_branch: &env("SUGGEST_TESTS_NIGHTLY_BRANCH"),
+        },
+        None,
+        &Vec::new(),
+    );
     let modified_files = match modified_files {
         Ok(Some(files)) => files,
         Ok(None) => {
@@ -25,3 +32,13 @@ fn main() -> ExitCode {
 
     ExitCode::SUCCESS
 }
+
+fn env(key: &str) -> String {
+    match std::env::var(key) {
+        Ok(var) => var,
+        Err(err) => {
+            eprintln!("suggest-tests: failed to read environment variable {key}: {err}");
+            std::process::exit(1);
+        }
+    }
+}