From 0a7227588dffb67706921eacb47d0104cb6e48d0 Mon Sep 17 00:00:00 2001
From: nodiscc <nodiscc@gmail.com>
Date: Mon, 6 Apr 2020 19:22:00 +0200
Subject: [PATCH] add a script to generate markdown documentation from package
 lists

---
 doc/gen_package_lists.py | 87 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100755 doc/gen_package_lists.py

diff --git a/doc/gen_package_lists.py b/doc/gen_package_lists.py
new file mode 100755
index 0000000..72c321f
--- /dev/null
+++ b/doc/gen_package_lists.py
@@ -0,0 +1,87 @@
+#!/usr/bin/python3
+
+import apt_pkg
+import re
+
+# list of lists, in the form [ 'sourcefile.list.chroot', 'destinationfile.md' ]
+package_lists = [
+	[ 'config/package-lists/utility.list.chroot', 'doc/md/packages/utility.md' ],
+	[ 'config/package-lists/network.list.chroot', 'doc/md/packages/network.md' ],
+	[ 'config/package-lists/office.list.chroot', 'doc/md/packages/office.md' ] ,
+	[ 'config/package-lists/graphics.list.chroot', 'doc/md/packages/graphics.md' ],
+	[ 'config/package-lists/audio-video.list.chroot', 'doc/md/packages/audio-video.md' ],
+	[ 'config/package-lists/system.list.chroot', 'doc/md/packages/system.md' ],
+	[ 'config/package-lists/development.list.chroot', 'doc/md/packages/development.md' ],
+	[ 'config/package-lists/games.list.chroot', 'doc/md/packages/games.md' ]
+	]
+
+def get_package_metadata(package):
+	'''get package metadata from apt database/hardcoded URLs
+	returns: list of strings'''
+	pkg = cache[(package)]
+	candidate = depcache.get_candidate_ver(pkg)
+	desc = candidate.translated_description
+	version = candidate.ver_str
+	(f, index) = desc.file_list.pop(0)
+	records = apt_pkg.PackageRecords(cache)
+	records.lookup((f, index))
+	short_desc = records.short_desc
+	long_desc = records.long_desc.replace(' .', '')
+	long_desc = re.sub(r'^[A-z].*', '', long_desc)
+	long_desc = long_desc.split('\n\n')[0]
+	screenshot_url = 'https://screenshots.debian.net/thumbnail-with-version/{}/{}'.format(package, version)
+	pdo_url = 'https://packages.debian.org/buster/{}'.format(package)
+	return short_desc, long_desc, screenshot_url, pdo_url, version
+
+
+def package_to_markdown(package, short_desc, long_desc, screenshot_url, pdo_url, version, pkg_type):
+	'''format package metdata to markdown
+	returns: markdown string'''
+	installed_icon = '![](green.png)'
+	optional_icon = '![](grey.png)'
+	if pkg_type == 'description':
+		markdown = '\n</sub>\n\n<img align="right" src="{}">\n\n**[{}]({})** - {}\n\n{}\n\n<sub>\n\n-----------------------\n\n'.format(screenshot_url, package, pdo_url, short_desc, long_desc)
+	elif pkg_type == 'short':
+		markdown = '- {} [{}]({}) `{}` - {}'.format(installed_icon, package, pdo_url, version, short_desc)
+	elif pkg_type == 'alt':
+		markdown = '- {} _[{}]({}) `{}` - {}_'.format(optional_icon, package, pdo_url, version, short_desc)
+	return markdown
+
+
+if __name__ == "__main__":
+	'''main loop'''
+	apt_pkg.init()
+	cache = apt_pkg.Cache()
+	depcache = apt_pkg.DepCache(cache)
+	package_state_key = '\n![](green.png) installed - ![](grey.png) suggested\n\n'
+	for pkg_list, destination in package_lists:
+		output = ''
+		with open(pkg_list, 'r') as list:
+			#print(pkg_list) #DEBUG
+			for line in list:
+				if line.startswith('#Title:'):
+					list_title = line.split(' ', 1)[1].strip()
+					output = output + '\n### {}\n'.format(list_title)
+					output = output + package_state_key
+				elif line.startswith('#Section:'):
+					section_title = line.split(' ', 1)[1].strip()
+					output = output + '\n#### {}\n'.format(section_title)
+				if line.startswith('#Description:'):
+					pkg_type = 'description'
+					package = line.split(' ')[1].strip()
+				elif line.startswith('#Alt'):
+					pkg_type = 'alt'
+					package = line.split(' ')[1].strip()
+				elif re.match(r'^[0-9, A-z].*', line):
+					pkg_type = 'short'
+					package = line.split(' ')[0].strip()
+				else:
+					pkg_type = None
+				if pkg_type:
+					#print(package) #DEBUG
+					short_desc, long_desc, screenshot_url, pdo_url, version = get_package_metadata(package)
+					markdown = package_to_markdown(package, short_desc, long_desc, screenshot_url, pdo_url, version, pkg_type)
+					output = output + '\n' + markdown
+		with open(destination, 'w+') as out:
+			out.write(output)
+