tools: Add color to pandoc output by using elinks.

eris/tools.py

@@ -392,6 +392,18 @@ def html_syntax(path):
     return status, stderr
 
 
+@deps(deps={"pandoc", "elinks"}, url="pandoc",
+      executables={"pandoc", "elinks"})
+def pandoc(path):
+    with tempfile.TemporaryDirectory() as temp_dir:
+        temp_path = os.path.join(temp_dir, "temp.html")
+        _do_command(["pandoc", "-t", "html", "-o", temp_path, path])
+        return _run_command(
+            ["elinks", "-no-numbering", "-no-references",
+             "-dump-color-mode", "1", "-dump", temp_path],
+            has_color=True, success_status=Status.normal)
+
+
 MAX_IMAGE_SIZE = 200
 
 

eris/tools.toml

@@ -21,7 +21,7 @@ tools_for_extensions = [
    [["bash", "sh", "dash", "ksh"], ["shellcheck"]],
    [["wasm"], ["wasm_validate", "wasm_objdump"]],
    [["pdf"], ["pdf2txt"]],
-   [["html", "htm"], ["html_syntax", "html2text", "pandoc", "elinks"]],
+   [["html", "htm"], ["html_syntax", "html2text", "elinks"]],
    [["yaml", "yml"], ["yamllint"]],
    [["md", "epub", "docx", "odt", "rst"], ["pandoc"]],
    [["zip", "jar", "apk", "egg", "whl"], ["zipinfo"]],
@@ -206,11 +206,6 @@ tools_for_extensions = [
   command = "html2text"
   success_status = "normal"
 
-[pandoc]
-  dependencies = ["pandoc"]
-  command = "pandoc -t plain"
-  success_status = "normal"
-
 [elinks]
   dependencies = ["elinks"]
   command = "elinks -dump-color-mode 1 -dump"