Add plantuml script

5 files changed, 87 insertions, 4 deletions

diff --git a/html/feed.xml b/html/feed.xml
index 732eff6..451dc01 100644
--- a/html/feed.xml
+++ b/html/feed.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Fryzek Concepts</title><atom:link href="https://fryzekconcepts.com/feed.xml" rel="self" type="application/rss+xml"/><link>https://fryzekconcepts.com</link><description>Lucas is a developer working on cool things</description><lastBuildDate>Mon, 25 Sep 2023 19:42:54 -0000</lastBuildDate><item><title>Generating Video</title><link>https://fryzekconcepts.com/notes/generating-video.html</link><description>&lt;p&gt;One thing I’m very interested in is computer graphics. This could be
+<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Fryzek Concepts</title><atom:link href="https://fryzekconcepts.com/feed.xml" rel="self" type="application/rss+xml"/><link>https://fryzekconcepts.com</link><description>Lucas is a developer working on cool things</description><lastBuildDate>Wed, 14 Feb 2024 13:05:33 -0000</lastBuildDate><item><title>Generating Video</title><link>https://fryzekconcepts.com/notes/generating-video.html</link><description>&lt;p&gt;One thing I’m very interested in is computer graphics. This could be
 complex 3D graphics or simple 2D graphics. The idea of getting a
 computer to display visual data fascinates me. One fundamental part of
 showing visual data is interfacing with a computer monitor. This can be
diff --git a/html/graphics_feed.xml b/html/graphics_feed.xml
index 1b188ef..95ccca7 100644
--- a/html/graphics_feed.xml
+++ b/html/graphics_feed.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Fryzek Concepts</title><atom:link href="https://fryzekconcepts.com/feed.xml" rel="self" type="application/rss+xml"/><link>https://fryzekconcepts.com</link><description>Lucas is a developer working on cool things</description><lastBuildDate>Mon, 25 Sep 2023 19:42:55 -0000</lastBuildDate><item><title>2022 Graphics Team Contributions at Igalia</title><link>https://fryzekconcepts.com/notes/2022_igalia_graphics_team.html</link><description>&lt;p&gt;This year I started a new job working with &lt;a
+<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Fryzek Concepts</title><atom:link href="https://fryzekconcepts.com/feed.xml" rel="self" type="application/rss+xml"/><link>https://fryzekconcepts.com</link><description>Lucas is a developer working on cool things</description><lastBuildDate>Wed, 14 Feb 2024 13:05:34 -0000</lastBuildDate><item><title>2022 Graphics Team Contributions at Igalia</title><link>https://fryzekconcepts.com/notes/2022_igalia_graphics_team.html</link><description>&lt;p&gt;This year I started a new job working with &lt;a
 href="https://www.igalia.com/technology/graphics"&gt;Igalia’s Graphics
 Team&lt;/a&gt;. For those of you who don’t know &lt;a
 href="https://www.igalia.com/"&gt;Igalia&lt;/a&gt; they are a &lt;a
diff --git a/html/index.html b/html/index.html
index 4164709..780e3a9 100644
--- a/html/index.html
+++ b/html/index.html
@@ -66,8 +66,8 @@
         <div class="note-box">
             <img src="/assets/freedreno/glinfo_freedreno_preview.png">
             <h2>Journey Through Freedreno</h2>
-            <p>Android running FreedrenoAs part of my training at Igalia
-            I’ve been attempting to write a new ...</p>
+            <p>Android running FreedrenoAndroid running FreedrenoAs part
+            of my training at Igalia I’ve been to ...</p>
         </div>
     </a>
         <a href="/notes/rasterizing-triangles.html" class="note-link">
diff --git a/makefile b/makefile
index 497382d..f48526e 100644
--- a/makefile
+++ b/makefile
@@ -10,6 +10,8 @@ HTML_DOCS=$(patsubst $(SRC_DIR)/%,$(HTML_DIR)/notes/%,$(SOURCE_DOCS:.md=.html))
 SOURCE_FILES=$(patsubst $(SRC_DIR)/%,%,$(SOURCE_DOCS:.md=))
 PAGE_FILES=$(patsubst $(PAGE_DIR)/%,$(HTML_DIR)/%,$(PAGE_DOCS:.md=.html))
 
+export PLANTUML_LIMIT_SIZE=16384
+
 $(BUILD_DIR)/%.meta: $(SRC_DIR)/%.md
 	@mkdir -p $(BUILD_DIR)
 	pandoc --write=tools/link_gen.lua $< -o $@
@@ -20,6 +22,7 @@ $(HTML_DIR)/notes/%.html: $(BUILD_DIR)/%.meta $(META_DOCS)
 	@mkdir -p $(HTML_DIR)/notes
 	pandoc -s --template=./templates/main.html \
 		--lua-filter=./tools/note.lua \
+		--filter ./tools/pandoc-plantuml.py \
 		$(patsubst $(BUILD_DIR)/%,$(SRC_DIR)/%,$(<:.meta=.md)) \
 		--highlight-style=pygments \
 		-o $@
@@ -31,6 +34,7 @@ $(HTML_DIR)/%.html: $(PAGE_DIR)/%.md
 		--highlight-style=pygments \
 		-M main_class="html-main-page" \
 		-M main_container="main-container-page" \
+		--filter ./tools/pandoc-plantuml.py \
 		-o $@
 
 $(HTML_DIR)/feed.xml: $(META_DOCS)
diff --git a/tools/pandoc-plantuml.py b/tools/pandoc-plantuml.py
new file mode 100644
index 0000000..2e92fa7
--- /dev/null
+++ b/tools/pandoc-plantuml.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python
+
+"""
+Pandoc filter to process code blocks with class "plantuml" into
+plant-generated images.
+Needs `plantuml.jar` from http://plantuml.com/.
+"""
+
+import os
+import sys
+import subprocess
+from pathlib import Path
+
+from pandocfilters import toJSONFilter, Para, Image
+from pandocfilters import get_filename4code, get_caption, get_extension, stringify
+
+PLANTUML_BIN = os.environ.get("PLANTUML_BIN", "plantuml")
+
+counter = 0
+
+def rel_mkdir_symlink(src, dest):
+    dest_dir = os.path.dirname(dest)
+    if dest_dir and not os.path.exists(dest_dir):
+        os.makedirs(dest_dir)
+
+    if os.path.exists(dest):
+        os.remove(dest)
+
+    src = os.path.relpath(src, dest_dir)
+    os.symlink(src, dest)
+
+
+def plantuml(key, value, format_, meta):
+    global counter
+    if key == "CodeBlock":
+        [[ident, classes, keyvals], code] = value
+        if "plantuml" in classes:
+            title = stringify(meta.get("title")).replace(" ", "_")
+            caption, typef, keyvals = get_caption(keyvals)
+
+            if meta.get("plantuml-format"):
+                pformat = meta.get("plantuml-format", None)
+                filetype = get_extension(format_, pformat["c"][0]["c"])
+            else:
+                filetype = get_extension(format_, "png", html="svg", latex="png")
+
+            src_folder = f"build/diag/{title}/"
+            src = f"{src_folder}/{counter}.uml"
+            filename = f"{counter}.{filetype}"
+            base_folder = f"assets/diag/{title}"
+            base = f"{base_folder}/{filename}"
+            dest_folder = f"html/{base_folder}"
+            dest = f"{dest_folder}/{filename}"
+
+            Path(src_folder).mkdir(parents=True, exist_ok=True)
+            Path(dest_folder).mkdir(parents=True, exist_ok=True)
+
+            # Generate image only once
+            txt = code.encode(sys.getfilesystemencoding())
+            if not txt.startswith(b"@start"):
+                txt = b"@startuml\n" + txt + b"\n@enduml\n"
+            with open(src, "wb") as f:
+                f.write(txt)
+
+            subprocess.check_call(PLANTUML_BIN.split() + ["-t" + filetype, src,
+                                                          "-o",
+                                                          os.path.abspath(dest_folder)])
+            sys.stderr.write("Created image " + dest + "\n")
+
+            counter += 1
+            return Para([Image([ident, [], keyvals], caption, ["/"+base, typef])])
+
+
+def main():
+    toJSONFilter(plantuml)
+
+
+if __name__ == "__main__":
+    main()