remove --description_file

src/main.rs

@@ -55,10 +55,6 @@ struct Options {
     #[arg(long)]
     description_extract: bool,
 
-    /// Extract the description of the function category from the given markdown file.
-    #[arg(long)]
-    description_file: Option<PathBuf>,
-
     /// Nix file to process.
     #[arg(short, long)]
     file: PathBuf,
@@ -374,7 +370,6 @@ fn retrieve_description(
     nix: &rnix::Root,
     description: &str,
     description_extract: bool,
-    description_file: Option<PathBuf>,
     category: &str,
 ) -> String {
     if description_extract {
@@ -384,11 +379,6 @@ fn retrieve_description(
                 .and_then(|node| retrieve_doc_comment(&node, true))
                 .expect("could not read description from top-level comment"),
         )
-    } else if let Some(filename) = description_file {
-        let content = fs::read_to_string(&filename).unwrap_or_else(|e| {
-            panic!("could not read description from \"{:?}\": {}", filename, e)
-        });
-        dedent(&content)
     } else {
         format!(
             "# {} {{#sec-functions-library-{}}}\n",
@@ -413,7 +403,6 @@ fn main() {
         &nix,
         &opts.description,
         opts.description_extract,
-        opts.description_file,
         &opts.category,
     );
 
@@ -461,13 +450,7 @@ fn test_description_in_external_file() {
     let src = fs::read_to_string("test/line-comments.nix").unwrap();
     let nix = rnix::Root::parse(&src).ok().expect("failed to parse input");
     let category = "line-comments";
-    let desc = retrieve_description(
-        &nix,
-        &"",
-        false,
-        Some("test/line-comments.md".into()),
-        category,
-    );
+    let desc = retrieve_description(&nix, &"Line Comments", false, category);
     writeln!(output, "{}", desc).expect("Failed to write header");
 
     for entry in collect_entries(nix, category) {
@@ -487,7 +470,7 @@ fn test_description_of_lib_debug() {
     let src = fs::read_to_string("test/lib-debug.nix").unwrap();
     let nix = rnix::Root::parse(&src).ok().expect("failed to parse input");
     let category = "debug";
-    let desc = retrieve_description(&nix, &"", true, None, category);
+    let desc = retrieve_description(&nix, &"", true, category);
     writeln!(output, "{}", desc).expect("Failed to write header");
 
     for entry in collect_entries(nix, category) {

src/snapshots/nixdoc__description_in_external_file.snap

@@ -2,12 +2,7 @@
 source: src/main.rs
 expression: output
 ---
-# Line Comments
-
-This a markdown document which could describe
-the inner workings of [lines-comments.nix](./line-comments.nix) if
-it wasn't a simple test-fixture for
-`--description file:line-comments.md`.
+# Line Comments {#sec-functions-library-line-comments}
 
 ## `lib.line-comments.shown` {#function-library-lib.line-comments.shown}