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sconstruct
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# NVDA add-on template SCONSTRUCT file
# Copyright (C) 2012-2024 Rui Batista, Noelia Martinez, Joseph Lee
# This file is covered by the GNU General Public License.
# See the file COPYING.txt for more details.
import codecs
import gettext
import os
import os.path
import zipfile
import sys
# Add-on localization exchange facility and the template requires Python 3.10.
# For best practice, use Python 3.11 or later to align with NVDA development.
EnsurePythonVersion(3, 10)
sys.dont_write_bytecode = True
# Bytecode should not be written for build vars module to keep the repository root folder clean.
import buildVars # NOQA: E402
def md2html(source, dest):
import markdown
# Use extensions if defined.
mdExtensions = buildVars.markdownExtensions
lang = os.path.basename(os.path.dirname(source)).replace('_', '-')
localeLang = os.path.basename(os.path.dirname(source))
try:
_ = gettext.translation("nvda", localedir=os.path.join("addon", "locale"), languages=[localeLang]).gettext
summary = _(buildVars.addon_info["addon_summary"])
except Exception:
summary = buildVars.addon_info["addon_summary"]
title = "{addonSummary} {addonVersion}".format(
addonSummary=summary, addonVersion=buildVars.addon_info["addon_version"]
)
headerDic = {
"[[!meta title=\"": "# ",
"\"]]": " #",
}
with codecs.open(source, "r", "utf-8") as f:
mdText = f.read()
for k, v in headerDic.items():
mdText = mdText.replace(k, v, 1)
htmlText = markdown.markdown(mdText, extensions=mdExtensions)
# Optimization: build resulting HTML text in one go instead of writing parts separately.
docText = "\n".join([
"<!DOCTYPE html>",
f"<html lang=\"{lang}\">",
"<head>",
"<meta charset=\"UTF-8\">"
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">",
"<link rel=\"stylesheet\" type=\"text/css\" href=\"../style.css\" media=\"screen\">",
f"<title>{title}</title>",
"</head>\n<body>",
htmlText,
"</body>\n</html>"
])
with codecs.open(dest, "w", "utf-8") as f:
f.write(docText)
def mdTool(env):
mdAction = env.Action(
lambda target, source, env: md2html(source[0].path, target[0].path),
lambda target, source, env: f"Generating {target[0]}",
)
mdBuilder = env.Builder(
action=mdAction,
suffix='.html',
src_suffix='.md',
)
env['BUILDERS']['markdown'] = mdBuilder
def validateVersionNumber(key, val, env):
# Used to make sure version major.minor.patch are integers to comply with NV Access add-on store.
# Ignore all this if version number is not specified.
if val == "0.0.0":
return
versionNumber = val.split(".")
if len(versionNumber) < 3:
raise ValueError("versionNumber must have three parts (major.minor.patch)")
if not all([part.isnumeric() for part in versionNumber]):
raise ValueError("versionNumber (major.minor.patch) must be integers")
vars = Variables()
vars.Add("version", "The version of this build", buildVars.addon_info["addon_version"])
vars.Add("versionNumber", "Version number of the form major.minor.patch", "0.0.0", validateVersionNumber)
vars.Add(BoolVariable("dev", "Whether this is a daily development version", False))
vars.Add("channel", "Update channel for this build", buildVars.addon_info["addon_updateChannel"])
env = Environment(variables=vars, ENV=os.environ, tools=['gettexttool', mdTool])
env.Append(**buildVars.addon_info)
if env["dev"]:
import datetime
buildDate = datetime.datetime.now()
year, month, day = str(buildDate.year), str(buildDate.month), str(buildDate.day)
versionTimestamp = "".join([year, month.zfill(2), day.zfill(2)])
env["addon_version"] = f"{versionTimestamp}.0.0"
env["versionNumber"] = f"{versionTimestamp}.0.0"
env["channel"] = "dev"
elif env["version"] is not None:
env["addon_version"] = env["version"]
if "channel" in env and env["channel"] is not None:
env["addon_updateChannel"] = env["channel"]
buildVars.addon_info["addon_version"] = env["addon_version"]
buildVars.addon_info["addon_updateChannel"] = env["addon_updateChannel"]
addonFile = env.File("${addon_name}-${addon_version}.nvda-addon")
def addonGenerator(target, source, env, for_signature):
action = env.Action(
lambda target, source, env: createAddonBundleFromPath(source[0].abspath, target[0].abspath) and None,
lambda target, source, env: f"Generating Addon {target[0]}"
)
return action
def manifestGenerator(target, source, env, for_signature):
action = env.Action(
lambda target, source, env: generateManifest(source[0].abspath, target[0].abspath) and None,
lambda target, source, env: f"Generating manifest {target[0]}"
)
return action
def translatedManifestGenerator(target, source, env, for_signature):
dir = os.path.abspath(os.path.join(os.path.dirname(str(source[0])), ".."))
lang = os.path.basename(dir)
action = env.Action(
lambda target, source, env: generateTranslatedManifest(source[1].abspath, lang, target[0].abspath) and None,
lambda target, source, env: f"Generating translated manifest {target[0]}"
)
return action
env['BUILDERS']['NVDAAddon'] = Builder(generator=addonGenerator)
env['BUILDERS']['NVDAManifest'] = Builder(generator=manifestGenerator)
env['BUILDERS']['NVDATranslatedManifest'] = Builder(generator=translatedManifestGenerator)
def createAddonHelp(dir):
docsDir = os.path.join(dir, "doc")
if os.path.isfile("style.css"):
cssPath = os.path.join(docsDir, "style.css")
cssTarget = env.Command(cssPath, "style.css", Copy("$TARGET", "$SOURCE"))
env.Depends(addon, cssTarget)
if os.path.isfile("readme.md"):
readmePath = os.path.join(docsDir, buildVars.baseLanguage, "readme.md")
readmeTarget = env.Command(readmePath, "readme.md", Copy("$TARGET", "$SOURCE"))
env.Depends(addon, readmeTarget)
def createAddonBundleFromPath(path, dest):
""" Creates a bundle from a directory that contains an addon manifest file."""
basedir = os.path.abspath(path)
with zipfile.ZipFile(dest, 'w', zipfile.ZIP_DEFLATED) as z:
# FIXME: the include/exclude feature may or may not be useful. Also python files can be pre-compiled.
for dir, dirnames, filenames in os.walk(basedir):
relativePath = os.path.relpath(dir, basedir)
for filename in filenames:
pathInBundle = os.path.join(relativePath, filename)
absPath = os.path.join(dir, filename)
if pathInBundle not in buildVars.excludedFiles:
z.write(absPath, pathInBundle)
return dest
def generateManifest(source, dest):
# Prepare the root manifest section
addon_info = buildVars.addon_info
with codecs.open(source, "r", "utf-8") as f:
manifest_template = f.read()
manifest = manifest_template.format(**addon_info)
# Add additional manifest sections such as custom braile tables
# Custom braille translation tables
if getattr(buildVars, "brailleTables", {}):
manifest_brailleTables = ["\n[brailleTables]"]
for table in buildVars.brailleTables.keys():
manifest_brailleTables.append(f"[[{table}]]")
for key, val in buildVars.brailleTables[table].items():
manifest_brailleTables.append(f"{key} = {val}")
manifest += "\n".join(manifest_brailleTables) + "\n"
# Custom speech symbol dictionaries
if getattr(buildVars, "symbolDictionaries", {}):
manifest_symbolDictionaries = ["\n[symbolDictionaries]"]
for dictionary in buildVars.symbolDictionaries.keys():
manifest_symbolDictionaries.append(f"[[{dictionary}]]")
for key, val in buildVars.symbolDictionaries[dictionary].items():
manifest_symbolDictionaries.append(f"{key} = {val}")
manifest += "\n".join(manifest_symbolDictionaries) + "\n"
with codecs.open(dest, "w", "utf-8") as f:
f.write(manifest)
def generateTranslatedManifest(source, language, out):
_ = gettext.translation("nvda", localedir=os.path.join("addon", "locale"), languages=[language]).gettext
vars = {}
for var in ("addon_summary", "addon_description"):
vars[var] = _(buildVars.addon_info[var])
with codecs.open(source, "r", "utf-8") as f:
manifest_template = f.read()
result = manifest_template.format(**vars)
# Add additional manifest sections such as custom braile tables
# Custom braille translation tables
if getattr(buildVars, "brailleTables", {}):
result_brailleTables = ["\n[brailleTables]"]
for table in buildVars.brailleTables.keys():
result_brailleTables.append(f"[[{table}]]")
# Fetch display name only.
result_brailleTables.append(f"displayName = {_(buildVars.brailleTables[table]['displayName'])}")
result += "\n".join(result_brailleTables) + "\n"
# Custom speech symbol dictionaries
if getattr(buildVars, "symbolDictionaries", {}):
result_symbolDictionaries = ["\n[symbolDictionaries]"]
for dictionary in buildVars.symbolDictionaries.keys():
result_symbolDictionaries.append(f"[[{dictionary}]]")
# Fetch display name only.
result_symbolDictionaries.append(f"displayName = {_(buildVars.symbolDictionaries[dictionary]['displayName'])}")
result += "\n".join(result_symbolDictionaries) + "\n"
with codecs.open(out, "w", "utf-8") as f:
f.write(result)
def expandGlobs(files):
return [f for pattern in files for f in env.Glob(pattern)]
addon = env.NVDAAddon(addonFile, env.Dir('addon'))
langDirs = [f for f in env.Glob(os.path.join("addon", "locale", "*"))]
# Allow all NVDA's gettext po files to be compiled in source/locale, and manifest files to be generated
for dir in langDirs:
poFile = dir.File(os.path.join("LC_MESSAGES", "nvda.po"))
moFile = env.gettextMoFile(poFile)
env.Depends(moFile, poFile)
translatedManifest = env.NVDATranslatedManifest(
dir.File("manifest.ini"),
[moFile, os.path.join("manifest-translated.ini.tpl")]
)
env.Depends(translatedManifest, ["buildVars.py"])
env.Depends(addon, [translatedManifest, moFile])
pythonFiles = expandGlobs(buildVars.pythonSources)
for file in pythonFiles:
env.Depends(addon, file)
# Convert markdown files to html
# We need at least doc in English and should enable the Help button for the add-on in Add-ons Manager
createAddonHelp("addon")
for mdFile in env.Glob(os.path.join('addon', 'doc', '*', '*.md')):
htmlFile = env.markdown(mdFile)
try: # It is possible that no moFile was set, because an add-on has no translations.
moFile
except NameError: # Runs if there is no moFile
env.Depends(htmlFile, mdFile)
else: # Runs if there is a moFile
env.Depends(htmlFile, [mdFile, moFile])
env.Depends(addon, htmlFile)
# Pot target
i18nFiles = expandGlobs(buildVars.i18nSources)
gettextvars = {
'gettext_package_bugs_address': 'nvda-translations@groups.io',
'gettext_package_name': buildVars.addon_info['addon_name'],
'gettext_package_version': buildVars.addon_info['addon_version']
}
pot = env.gettextPotFile("${addon_name}.pot", i18nFiles, **gettextvars)
env.Alias('pot', pot)
env.Depends(pot, i18nFiles)
mergePot = env.gettextMergePotFile("${addon_name}-merge.pot", i18nFiles, **gettextvars)
env.Alias('mergePot', mergePot)
env.Depends(mergePot, i18nFiles)
# Generate Manifest path
manifest = env.NVDAManifest(os.path.join("addon", "manifest.ini"), os.path.join("manifest.ini.tpl"))
# Ensure manifest is rebuilt if buildVars is updated.
env.Depends(manifest, "buildVars.py")
env.Depends(addon, manifest)
env.Default(addon)
env.Clean(addon, ['.sconsign.dblite', 'addon/doc/' + buildVars.baseLanguage + '/'])