moved all crates into seperate folder + related path fixes

crates/docs_cli/src/main.rs

@@ -0,0 +1,50 @@
+use clap::{Arg, Command};
+use roc_docs::generate_docs_html;
+use std::fs::{self, FileType};
+use std::io;
+use std::path::{Path, PathBuf};
+
+pub const DIRECTORY_OR_FILES: &str = "DIRECTORY_OR_FILES";
+
+fn main() -> io::Result<()> {
+    let matches = Command::new("roc-docs")
+        .about("Build HTML documentation files from the given .roc files")
+        .arg(
+            Arg::new(DIRECTORY_OR_FILES)
+                .multiple_values(true)
+                .required(true)
+                .help("The directory or files to build documentation for")
+                .allow_invalid_utf8(true),
+        )
+        .get_matches();
+
+    let mut roc_files = Vec::new();
+
+    // Populate roc_files
+    for os_str in matches.values_of_os(DIRECTORY_OR_FILES).unwrap() {
+        let metadata = fs::metadata(os_str)?;
+        roc_files_recursive(os_str, metadata.file_type(), &mut roc_files)?;
+    }
+
+    generate_docs_html(roc_files);
+
+    Ok(())
+}
+
+fn roc_files_recursive<P: AsRef<Path>>(
+    path: P,
+    file_type: FileType,
+    roc_files: &mut Vec<PathBuf>,
+) -> io::Result<()> {
+    if file_type.is_dir() {
+        for entry_res in fs::read_dir(path)? {
+            let entry = entry_res?;
+
+            roc_files_recursive(entry.path(), entry.file_type()?, roc_files)?;
+        }
+    } else {
+        roc_files.push(path.as_ref().to_path_buf());
+    }
+
+    Ok(())
+}