Mutualize pandoc invocations

Will be useful to avoid duplicating changes to Lua filters.

1 files changed, 15 insertions, 0 deletions

diff --git a/repo/www/helpers.py b/repo/www/helpers.py
index 6dc5bad..16cd496 100644
--- a/repo/www/helpers.py
+++ b/repo/www/helpers.py
@@ -1,6 +1,7 @@
 from collections import defaultdict
 from dataclasses import dataclass, field
 from os import path
+from subprocess import run
 from typing import Iterator
 
 
@@ -52,3 +53,17 @@ def deserialize_directories(directories):
     return {
         k: Directory.deserialize(v) for k, v in directories.items()
     }
+
+
+def pandoc(page, output, template, title=None, site_title=None):
+    cmd = (
+        'pandoc', '-s', page, '-o', output, '--template', template,
+        '--lua-filter', 'convert-internal-links.lua'
+    )
+
+    if title is not None:
+        cmd += ('-M', f'title={title}')
+    if site_title is not None:
+        cmd += ('-T', site_title)
+
+    run(cmd, check=True)