python in bash in rust

tests/full_tests.rs

@@ -1,15 +1,19 @@
 use anyhow::{ensure, Context, Result};
 use once_cell::sync::Lazy;
 use regex::Regex;
+use std::fs::Permissions;
+use std::io::BufWriter;
+use std::os::unix::prelude::PermissionsExt;
+use std::path::PathBuf;
 use std::process::Command;
 use std::{
     fs,
     io::{self, Write},
     path::Path,
 };
+use tempfile::TempDir;
 
 #[test]
-#[ignore = "unfinished"]
 fn full_tests() -> Result<()> {
     let path = Path::new(file!())
         .canonicalize()?
@@ -25,16 +29,15 @@ fn full_tests() -> Result<()> {
         let child = child?;
         let path = child.path();
 
-        build(&path)?;
+        build(&path).with_context(|| format!("building {:?}", path.file_name().unwrap()))?;
     }
 
     Ok(())
 }
 
-fn build(path: &Path) -> Result<()> {
-    let cargo_minimize = Path::new("target/debug/cargo-minimize").canonicalize()?;
-
+fn setup_dir(path: &Path) -> Result<(TempDir, PathBuf)> {
     let proj_dir = path.file_name().unwrap().to_str().unwrap();
+
     writeln!(io::stdout(), ".... Testing {}", proj_dir)?;
 
     let tempdir = tempfile::tempdir()?;
@@ -43,23 +46,98 @@ fn build(path: &Path) -> Result<()> {
 
     let proj_dir = tempdir.path().join(proj_dir).canonicalize()?;
 
-    let start_roots = get_roots(&proj_dir).context("getting initial roots")?;
+    Ok((tempdir, proj_dir))
+}
+
+fn setup_scripts(start_roots: &[String], proj_dir: &Path) -> Result<()> {
+    // FIXME: Do this in a good way.
+    // What the fuck is this.
+    {
+        let file = fs::File::create(proj_dir.join("check.sh"))?;
+
+        let expected_roots = start_roots
+            .iter()
+            .map(|root| format!("'{}'", root))
+            .collect::<Vec<_>>()
+            .join(", ");
+
+        write!(
+            BufWriter::new(&file),
+            r#"#!/usr/bin/env bash
+
+OUT=$(rg -o "~MINIMIZE-ROOT [\w\-]*" full-tests/ --no-filename --sort path src)
+        
+python3 -c "
+out = '$OUT'
+        
+lines = out.split('\n')
+        
+found = set()
+        
+for line in lines:
+    name = line.removeprefix('~MINIMIZE-ROOT').strip()
+    found.add(name)
+        
+    expected_roots = {{{expected_roots}}}
+        
+    for root in expected_roots:
+        if root in found:
+            print(f'Found {{root}} in output')
+        else:
+            print(f'Did not find {{root}} in output!')
+            exit(1)
+"
+        "#
+        )?;
+
+        file.set_permissions(Permissions::from_mode(0o777))?;
+    }
+    {
+        let file = fs::File::create(proj_dir.join("lint.sh"))?;
+
+        write!(
+            BufWriter::new(&file),
+            r#"#!/usr/bin/env bash
+cargo check
+        "#
+        )?;
+
+        file.set_permissions(Permissions::from_mode(0o777))?;
+    }
+    Ok(())
+}
+
+fn build(path: &Path) -> Result<()> {
+    let (_tempdir, proj_dir) = setup_dir(path).context("setting up tempdir")?;
+    let cargo_minimize = Path::new("target/debug/cargo-minimize")
+        .canonicalize()
+        .context("canonicalizing target/debug/cargo-minimize")?;
+
+    let start_roots = get_roots(&proj_dir).context("getting initial MINIMIZE-ROOTs")?;
     eprintln!("Roots: {:?}", start_roots);
 
+    setup_scripts(&start_roots, &proj_dir).context("setting up scripts")?;
+
     let mut cmd = Command::new(cargo_minimize);
     cmd.current_dir(&proj_dir);
 
     cmd.arg("minimize");
+    cmd.arg("--script-path=./check.sh");
+    cmd.arg("--script-path-lints=./lint.sh");
 
     let out = cmd.output().context("spawning cargo-minimize")?;
     let stderr = String::from_utf8(out.stderr).unwrap();
-
-    ensure!(out.status.success(), "Command failed:\n{stderr}");
-
-    let required_deleted = get_required_deleted(&proj_dir)?;
+    let stdout = String::from_utf8(out.stdout).unwrap();
 
     ensure!(
-        required_deleted.len() > 0,
+        out.status.success(),
+        "Command failed:\n--- stderr:\n{stderr}\n--- stdout:\n{stdout}"
+    );
+
+    let required_deleted = get_required_deleted(&proj_dir).context("get REQUIRED-DELETED")?;
+
+    ensure!(
+        required_deleted.is_empty(),
         "Some REQUIRE-DELETED have not been deleted: {required_deleted:?}"
     );
 
@@ -79,6 +157,7 @@ fn get_required_deleted(path: &Path) -> Result<Vec<String>> {
 }
 
 fn grep(path: &Path, regex: &Regex) -> Result<Vec<String>> {
+    let path = path.join("src");
     let mut results = Vec::new();
     let walk = walkdir::WalkDir::new(path);
 
@@ -87,7 +166,7 @@ fn grep(path: &Path, regex: &Regex) -> Result<Vec<String>> {
         if !entry.metadata()?.is_file() {
             continue;
         }
-        let src = fs::read_to_string(entry.path())?;
+        let src = fs::read_to_string(entry.path()).context("reading file")?;
         let captures = regex.captures_iter(&src);
         for cap in captures {
             let root_name = cap.get(1).unwrap();