[Feat] add file_path option for detect programming language (#99)

Author: mistricky

cli/src/code.rs

@@ -27,7 +27,11 @@ pub fn create_code(cli: &CLI, code_config: Code) -> anyhow::Result<Content> {
                 .start_line_number(parsed_range.0 as u32)
                 .build()?;
 
-            code.file_path = cli.from_file.clone().or(code_config.file_path);
+            code.file_path = cli
+                .from_file
+                .clone()
+                .or(cli.file_path.clone())
+                .or(code_config.file_path);
             code.language = cli.language.clone().or(code_config.language);
             code.highlight_lines = create_highlight_lines(&cli, parsed_range, &code_snippet)?;
 

cli/src/main.rs

@@ -164,6 +164,11 @@ struct CLI {
     #[arg(long, short)]
     language: Option<String>,
 
+    /// Used to detect the language of the code snippet, if you want to set language manually,
+    /// use `--language` or `-l` option.
+    #[arg(long)]
+    file_path: Option<String>,
+
     /// Set watermark for the code snippet
     #[arg(long, short)]
     watermark: Option<String>,