add workspace members and other small fixes

Author: markgreene74

exercises_downloader/src/main.rs

@@ -1,7 +1,6 @@
 // Download the exercises from https://rustplatform.com/
 // and make them available locally.
 
-// use reqwest::Error;  // DEBUG
 use serde::Deserialize;
 use std::env;
 use std::fs;
@@ -21,25 +20,26 @@ struct Bite {
     author: String,
 }
 
-fn write_root_toml(path: &Path) -> std::io::Result<()> {
+fn write_root_toml(path: &Path, all_slugs: String) -> std::io::Result<()> {
     // main Cargo.toml template
-    let content = b"[package]
+    let content = "[package]
 name = \"exercises\"
 version = \"0.1.0\"
 edition = \"2024\"\
 \n
 [workspace]
 resolver = \"3\"
-members = [\"adder\"]";
+members = [\nworkspace_members]"
+        .replace("workspace_members", &all_slugs);
 
     let filename = path.join("Cargo.toml");
     let mut file = File::create(filename)?;
-    file.write_all(content)?;
+    file.write_all(content.as_bytes())?;
 
     Ok(())
 }
 
-fn write_toml(path: &Path, slug: &String, libraries: String) -> std::io::Result<()> {
+fn write_toml(path: &Path, slug: &String, libraries: &String) -> std::io::Result<()> {
     // exercise Cargo.toml template
     let content = "[package]
 name = \"package_name\"
@@ -56,7 +56,7 @@ edition = \"2024\"\n
     Ok(())
 }
 
-fn write_exercise(path: &Path, template: String) -> std::io::Result<()> {
+fn write_exercise(path: &Path, template: &String) -> std::io::Result<()> {
     let src_dir = path.join("src");
     fs::create_dir_all(&src_dir)?;
     let filename = src_dir.join("lib.rs");
@@ -79,17 +79,17 @@ fn write_exercise(path: &Path, template: String) -> std::io::Result<()> {
 
 fn write_markdown(
     path: &Path,
-    name: String,
-    description: String,
-    level: String,
-    author: String,
+    name: &String,
+    description: &String,
+    level: &String,
+    author: &String,
 ) -> std::io::Result<()> {
     // exercise markdown template
     let content = "# package_name
 
-Level: package_level
-Author: package_author\n
-Instructions:
+- Level: package_level
+- Author: package_author\n
+## Instructions
 package_description\n"
         .replace("package_name", name.as_str())
         .replace("package_description", description.as_str())
@@ -127,34 +127,38 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     // extract the exercises from the response
     let bites: Vec<Bite> = response.json()?;
-    println!("I found {:#?} exercises!", bites.len());
+    println!("{:#?} exercises found!", bites.len());
     println!();
 
     // make sure the base path (exercises) exists
     fs::create_dir_all(&base_path)?;
 
-    for bite in bites {
+    for bite in &bites {
         print!("{:#?}", bite.name);
-        let slug = bite.slug;
+        let slug = &bite.slug;
         let exercise_path = &base_path.join(&bite.level).join(&slug);
 
         // make sure the exercise directory exists
         fs::create_dir_all(&exercise_path)?;
         // re-write/update the toml and md files but make a backup copy of the
         // exercise file if it exists, in case it was already solved
-        write_toml(&exercise_path, &slug, bite.libraries)?;
+        write_toml(&exercise_path, &slug, &bite.libraries)?;
         write_markdown(
             &exercise_path,
-            bite.name,
-            bite.description,
-            bite.level,
-            bite.author,
+            &bite.name,
+            &bite.description,
+            &bite.level,
+            &bite.author,
         )?;
-        write_exercise(&exercise_path, bite.template)?;
+        write_exercise(&exercise_path, &bite.template)?;
         println!(" ✅");
     }
 
-    write_root_toml(&base_path)?;
+    let all_slugs = bites
+        .iter()
+        .map(|bite| String::from("    \"") + bite.slug.clone().as_str() + "\",\n")
+        .collect::<String>();
+    write_root_toml(&base_path, all_slugs)?;
 
     Ok(())
 }