Pass filters to generation scripts explicitly

4 files changed, 16 insertions, 3 deletions

diff --git a/repo/www/Makefile b/repo/www/Makefile
index d4392d1..9a804db 100644
--- a/repo/www/Makefile
+++ b/repo/www/Makefile
@@ -14,6 +14,7 @@ text_patterns = $(foreach ext,$(TEXT_FILES),'$(TOP_DIR)/**.$(ext)')
 text_folders = $(call dirnames,$(shell git ls-files $(text_patterns)))
 top_readme = $(shell git ls-files $(addprefix $(TOP_DIR)/README.,$(TEXT_FILES)))
 html_template = template.html
+lua_filters = convert-internal-links.lua
 
 all: site
 
@@ -53,6 +54,7 @@ $(pages) $(indices): $(html_template)
 $(pages): $(OUT_DIR)/%.html:
 	$(call v,PAGE,$*) TEXT_FILES="$(TEXT_FILES)"                    \
 	./generate-page.py --site-title="$$(cat $(title))" --title="$*" \
+		$(foreach f,$(lua_filters),--lua-filter $(f))           \
 		--template=$(html_template) $< $@
 
 top_index = $(OUT_DIR)/index.html
@@ -66,6 +68,7 @@ $(subindices): index_options = --site-title="$$(cat $(title))"
 $(indices): $(OUT_DIR)/%index.html:
 	$(call v,INDEX,$*) TEXT_FILES="$(TEXT_FILES)"                           \
 	./generate-index.py $(index_options) --template=$(html_template)        \
+		$(foreach f,$(lua_filters),--lua-filter $(f))                   \
 		$(site_tree) "$(patsubst %/,%,$*)" $@
 
 clean:
diff --git a/repo/www/generate-index.py b/repo/www/generate-index.py
index 7eed97a..316a0f3 100755
--- a/repo/www/generate-index.py
+++ b/repo/www/generate-index.py
@@ -21,6 +21,10 @@ def parse_arguments():
         '--site-title', help='Prefix to add to <title>.'
     )
     parser.add_argument(
+        '--lua-filter', dest='filters', action='append',
+        help='Lua filter to run the page through.'
+    )
+    parser.add_argument(
         'site_tree', help='JSON file describing the page tree.'
     )
     parser.add_argument(
@@ -111,7 +115,7 @@ def main(arguments):
         page.flush()
 
         pandoc(page.name, arguments.output, arguments.template,
-               site_title=arguments.site_title)
+               arguments.filters, site_title=arguments.site_title)
 
 
 if __name__ == '__main__':
diff --git a/repo/www/generate-page.py b/repo/www/generate-page.py
index 372e8a2..c9fa0e4 100755
--- a/repo/www/generate-page.py
+++ b/repo/www/generate-page.py
@@ -14,6 +14,10 @@ def parse_arguments():
         '--site-title', help='Prefix to add to <title>.'
     )
     parser.add_argument(
+        '--lua-filter', dest='filters', action='append',
+        help='Lua filter to run the page through.'
+    )
+    parser.add_argument(
         '--title', help='Page title.'
     )
     parser.add_argument(
@@ -30,6 +34,7 @@ def main(arguments):
         arguments.page,
         arguments.output,
         arguments.template,
+        arguments.filters,
         title=arguments.title,
         site_title=arguments.site_title
     )
diff --git a/repo/www/helpers.py b/repo/www/helpers.py
index 16cd496..434ef6c 100644
--- a/repo/www/helpers.py
+++ b/repo/www/helpers.py
@@ -1,5 +1,6 @@
 from collections import defaultdict
 from dataclasses import dataclass, field
+from itertools import chain
 from os import path
 from subprocess import run
 from typing import Iterator
@@ -55,10 +56,10 @@ def deserialize_directories(directories):
     }
 
 
-def pandoc(page, output, template, title=None, site_title=None):
+def pandoc(page, output, template, filters, title=None, site_title=None):
     cmd = (
         'pandoc', '-s', page, '-o', output, '--template', template,
-        '--lua-filter', 'convert-internal-links.lua'
+        *chain(*(('--lua-filter', f) for f in filters))
     )
 
     if title is not None: