Merge pull request #22 from pydsigner/minify

Minification Steps

Author: pydsigner

pyproject.toml

@@ -34,7 +34,8 @@ markdown = ["anchovy[jinja]", "markdown_it_py>=3.0.0"]
 css = ["tinycss2>=1.1.1"]
 pretty = ["rich>=12.5.1"]
 pillow = ["Pillow>=9.2.0"]
-web = ["anchovy[markdown]", "anchovy[css]", "anchovy[pillow]"]
+minify = ["csscompressor>=0.9.5", "minify-html-onepass>=0.11.1"]
+web = ["anchovy[markdown]", "anchovy[css]", "anchovy[pillow]", "anchovy[minify]"]
 base = ["anchovy[web]", "anchovy[pretty]"]
 # Currently, [all] is the same as [base]; this will change in the future if
 # heavy dependencies for non-core Steps are added.

src/anchovy/__init__.py

@@ -9,5 +9,6 @@
 )
 from .images import CWebPStep, ImageMagickStep, IMThumbnailStep, PillowStep, OptipngStep
 from .jinja import JinjaMarkdownStep, JinjaRenderStep
+from .minify import CSSMinifierStep, HTMLMinifierStep, ResourcePackerStep
 from .paths import DirPathCalc, OutputDirPathCalc, REMatcher, WorkingDirPathCalc
 from .simple import DirectCopyStep

src/anchovy/jinja.py

@@ -23,7 +23,7 @@ class JinjaRenderStep(Step):
 
     @classmethod
     def get_dependencies(cls):
-        return super().get_dependencies() | {
+        return {
             pip_dependency('jinja2'),
         }
 

src/anchovy/minify.py

@@ -0,0 +1,57 @@
+import shutil
+from pathlib import Path
+
+from .core import ContextDir, Step
+from .dependencies import pip_dependency
+
+
+class ResourcePackerStep(Step):
+    def __init__(self, source_dir: ContextDir = 'input_dir'):
+        self.source_dir: ContextDir = source_dir
+
+    def __call__(self, path: Path, output_paths: list[Path]):
+        parent_dir = self.context[self.source_dir]
+        data = '\n\n'.join(
+            (parent_dir / filename.strip()).read_text('utf-8')
+            for filename in path.open() if filename
+        )
+
+        for o_path in output_paths:
+            o_path.parent.mkdir(parents=True, exist_ok=True)
+        output_paths[0].write_text(data, 'utf-8')
+        for o_path in output_paths[1:]:
+            shutil.copy(output_paths[0], o_path)
+
+
+class CSSMinifierStep(Step):
+    @classmethod
+    def get_dependencies(cls):
+        return {
+            pip_dependency('csscompressor'),
+        }
+
+    def __call__(self, path: Path, output_paths: list[Path]):
+        import csscompressor
+        data = csscompressor.compress(path.read_text('utf-8'))
+        for o_path in output_paths:
+            o_path.parent.mkdir(parents=True, exist_ok=True)
+        output_paths[0].write_text(data, 'utf-8')
+        for o_path in output_paths[1:]:
+            shutil.copy(output_paths[0], o_path)
+
+
+class HTMLMinifierStep(Step):
+    @classmethod
+    def get_dependencies(cls):
+        return {
+            pip_dependency('minify-html-onepass', check_name='minify_html_onepass'),
+        }
+
+    def __call__(self, path: Path, output_paths: list[Path]):
+        import minify_html_onepass
+        data = minify_html_onepass.minify(path.read_text('utf-8'))
+        for o_path in output_paths:
+            o_path.parent.mkdir(parents=True, exist_ok=True)
+        output_paths[0].write_text(data, 'utf-8')
+        for o_path in output_paths[1:]:
+            shutil.copy(output_paths[0], o_path)