v0.1.0-pre.046

kb-app-demo-desktop/src/main_window.rs

@@ -0,0 +1,68 @@
+// file: kb-app-demo-desktop/src/main_window.rs
+// version: 1
+
+//! Main-window helpers and workspace README loading.
+
+pub(crate) fn workspace_root_dir() -> std::path::PathBuf {
+    let manifest_dir = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+    return match manifest_dir.parent() {
+        std::option::Option::Some(parent) => parent.to_path_buf(),
+        std::option::Option::None => manifest_dir,
+    };
+}
+
+pub(crate) fn load_project_readme() -> kb_core::Result<std::string::String> {
+    let path = crate::workspace_root_dir().join("README.md");
+    let content = match std::fs::read_to_string(&path) {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => {
+            return std::result::Result::Err(kb_core::Error::io(format!(
+                "cannot read project README '{}': {error}",
+                path.display()
+            )));
+        },
+    };
+    return std::result::Result::Ok(strip_readme_metadata_comments(content.as_str()));
+}
+
+fn strip_readme_metadata_comments(content: &str) -> std::string::String {
+    let mut output = std::string::String::new();
+    let mut leading_metadata = true;
+    for line in content.lines() {
+        let trimmed = line.trim();
+        if leading_metadata && is_readme_metadata_comment(trimmed) {
+            continue;
+        }
+        leading_metadata = false;
+        output.push_str(line);
+        output.push('\n');
+    }
+    return output;
+}
+
+fn is_readme_metadata_comment(line: &str) -> bool {
+    if line.starts_with("<!-- file:") || line.starts_with("<!--- file:") {
+        return true;
+    }
+    if line.starts_with("<!-- version:") || line.starts_with("<!--- version:") {
+        return true;
+    }
+    return false;
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn strip_readme_metadata_comments_removes_workspace_header_lines() {
+        let content = "<!-- file: README.md -->\n<!-- version: 7 -->\n# Title\nBody\n";
+        let cleaned = super::strip_readme_metadata_comments(content);
+        assert_eq!(cleaned, "# Title\nBody\n");
+    }
+
+    #[test]
+    fn strip_readme_metadata_comments_keeps_later_html_comments() {
+        let content = "<!-- file: README.md -->\n# Title\n<!-- normal comment -->\nBody\n";
+        let cleaned = super::strip_readme_metadata_comments(content);
+        assert_eq!(cleaned, "# Title\n<!-- normal comment -->\nBody\n");
+    }
+}