mbotsu/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Reference

pyodide/pyodide#3008
pyodide 0.21.1 setup

$ git clone --depth 1 https://github.com/pyodide/pyodide.git -b 0.21.1
$ cd pyodide
$ sudo bash run_docker
$ pip install ./pyodide-build
$ cd emsdk
$ make
$ cd ..
$ sudo apt update
$ sudo apt install vim libfreetype6-dev
$ source pyodide_env.sh
$ make -C cpython
$ make

pyodide add package

edited: plist.txt
$ vi plist.txt
$ python pyodide_meta.py

edited: packages/reportlab/meta.yaml

@@ -4,6 +4,11 @@
 source:
   url: https://files.pythonhosted.org/packages/a6/d0/bdee3e8a7ba5f2dc8bacea10f4fdd1264b1dd9e53d96d318773180634a00/reportlab-3.6.11.tar.gz
   sha256: 04fc4420f0548815d0623e031c86a1f7f3f3003e699d9af7148742e2d72b024a
+  patches:
+    - patches/gt1-namecontext.patch
+build:
+  cflags: |
+    -s USE_FREETYPE=1
 test:
   imports:
     - reportlab

create patch

packages/reportlab/patches/gt1-namecontext.patch
https://gist.github.com/mbotsu/5d87dff8cf240062eda24e1af15ce92d#file-gt1-namecontext-patch
make reportlab

$ PYODIDE_PACKAGES="core,CLAPACK,Pillow,reportlab" make -C packages

run

$ python3 -m http.server

access to localhost:8000/pdf.html
https://gist.github.com/mbotsu/d5d567b7ed3d555a382aacb0da0ca732#file-pyodide_meta-py

  
## gt1-namecontext.patch
--- a/src/rl_addons/renderPM/gt1/gt1-namecontext.c
+++ b/src/rl_addons/renderPM/gt1/gt1-namecontext.c
@@ -6,6 +6,7 @@
 #if defined(_WIN32) || defined(macintosh) || defined(__APPLE__)
 #	include <string.h>
 #endif
+#include <string.h>

 /* btw, I do not know who wrote the following comment. I modified this

## pdf.html
<html>
<head>
<meta charset="utf-8" />
</head>
<body>
<script src="./pyodide.js"></script>
<script type="text/javascript">
async function main() {
    let pyodide = await loadPyodide();

    await pyodide.loadPackage([
        "micropip", "Pillow", "reportlab"
    ]);
    await pyodide.runPythonAsync(`

        from reportlab.pdfgen import canvas
        from reportlab.lib.pagesizes import A4, portrait
        from reportlab.pdfbase import pdfmetrics
        from reportlab.pdfbase.ttfonts import TTFont
        from reportlab.pdfbase.cidfonts import UnicodeCIDFont
        import base64

        FILENAME = 'HelloWorld.pdf'
        c = canvas.Canvas(FILENAME, pagesize=portrait(A4))

        font_size = 20
        pdfmetrics.registerFont(UnicodeCIDFont('HeiseiMin-W3'))
        c.setFont('HeiseiMin-W3', font_size)

        width, height = A4
        c.drawCentredString(width / 2, height / 2 - font_size * 0.4, 'Hello World')
        c.showPage()
        c.save()
    `)

    const fileName = pyodide.globals.get("FILENAME")
    const file = pyodide.FS.readFile(fileName, { encoding: "utf8" });
    const mimeString = "application/pdf";
    const blob = new Blob([file], { type: mimeString });
    const htmlElement = document.getElementById("download");
    htmlElement.innerText = "Download";
    htmlElement.download = fileName;
    htmlElement.href = window.URL.createObjectURL(blob);
}
main();
</script>
</body>
<a id="download" href="#"></a>
</html>

## plist.txt
reportlab       3.6.11

## pyodide_meta.py
import os
from pathlib import Path
from pyodide_build.mkpkg import make_package
import logging
import coloredlogs

logger = logging.getLogger('app')
coloredlogs.install(level='DEBUG')

def _make_package(tmpdir, package,version=None, source_fmt=None):
    base_dir = Path(str(tmpdir))
    meta_path = base_dir / package / "meta.yaml"
    if (meta_path.exists()):
        return

    try:
        make_package(base_dir, package, version, source_fmt)
    except:
        logger.warning("No wheel or sdist found for package " + package)


package_dir = "./packages"
ignore_dirs = ["pip", "greenlet"]

check_dirs = os.listdir(package_dir)
check_dirs.extend(ignore_dirs)

path = "plist.txt"
with open(path) as f:
    for s_line in f:
        lib_name, version  = s_line.split()
        package = lib_name.lower()
        print(lib_name, version)
        if (package in check_dirs):
            continue
        _make_package(package_dir, package, version)
	--- a/src/rl_addons/renderPM/gt1/gt1-namecontext.c
	+++ b/src/rl_addons/renderPM/gt1/gt1-namecontext.c
	@@ -6,6 +6,7 @@
	#if defined(_WIN32) \|\| defined(macintosh) \|\| defined(__APPLE__)
	# include <string.h>
	#endif
	+#include <string.h>

	/* btw, I do not know who wrote the following comment. I modified this
	<html>
	<head>
	<meta charset="utf-8" />
	</head>
	<body>
	<script src="./pyodide.js"></script>
	<script type="text/javascript">
	async function main() {
	let pyodide = await loadPyodide();

	await pyodide.loadPackage([
	"micropip", "Pillow", "reportlab"
	]);
	await pyodide.runPythonAsync(`

	from reportlab.pdfgen import canvas
	from reportlab.lib.pagesizes import A4, portrait
	from reportlab.pdfbase import pdfmetrics
	from reportlab.pdfbase.ttfonts import TTFont
	from reportlab.pdfbase.cidfonts import UnicodeCIDFont
	import base64

	FILENAME = 'HelloWorld.pdf'
	c = canvas.Canvas(FILENAME, pagesize=portrait(A4))

	font_size = 20
	pdfmetrics.registerFont(UnicodeCIDFont('HeiseiMin-W3'))
	c.setFont('HeiseiMin-W3', font_size)

	width, height = A4
	c.drawCentredString(width / 2, height / 2 - font_size * 0.4, 'Hello World')
	c.showPage()
	c.save()
	`)

	const fileName = pyodide.globals.get("FILENAME")
	const file = pyodide.FS.readFile(fileName, { encoding: "utf8" });
	const mimeString = "application/pdf";
	const blob = new Blob([file], { type: mimeString });
	const htmlElement = document.getElementById("download");
	htmlElement.innerText = "Download";
	htmlElement.download = fileName;
	htmlElement.href = window.URL.createObjectURL(blob);
	}
	main();
	</script>
	</body>
	<a id="download" href="#"></a>
	</html>
	import os
	from pathlib import Path
	from pyodide_build.mkpkg import make_package
	import logging
	import coloredlogs

	logger = logging.getLogger('app')
	coloredlogs.install(level='DEBUG')

	def _make_package(tmpdir, package,version=None, source_fmt=None):
	base_dir = Path(str(tmpdir))
	meta_path = base_dir / package / "meta.yaml"
	if (meta_path.exists()):
	return

	try:
	make_package(base_dir, package, version, source_fmt)
	except:
	logger.warning("No wheel or sdist found for package " + package)


	package_dir = "./packages"
	ignore_dirs = ["pip", "greenlet"]

	check_dirs = os.listdir(package_dir)
	check_dirs.extend(ignore_dirs)

	path = "plist.txt"
	with open(path) as f:
	for s_line in f:
	lib_name, version = s_line.split()
	package = lib_name.lower()
	print(lib_name, version)
	if (package in check_dirs):
	continue
	_make_package(package_dir, package, version)