49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
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def _cldr_data_repository_impl(ctx):
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for url, sha256 in ctx.attr.urls.items():
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ctx.report_progress("Downloading CLDR data from: %s" % url)
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ctx.download_and_extract(
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url = url,
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sha256 = sha256,
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)
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ctx.report_progress("Extracting available locales from: %s" % ctx.attr.available_locales_path)
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locales_json = ctx.read(ctx.attr.available_locales_path)
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locales = json.decode(locales_json)["availableLocales"]["full"]
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ctx.report_progress("Extracted %s locales from CLDR" % len(locales))
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ctx.file("index.bzl", content = """
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LOCALES=%s
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""" % locales)
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ctx.file("BUILD.bazel", content = """
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filegroup(
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name = "all_json",
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srcs = glob(["**/*.json"]),
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visibility = ["//visibility:public"],
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)
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""")
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"""
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Repository rule that downloads CLDR data from the specified repository and generates a
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`BUILD.bazel` file that exposes all data files. Additionally, an `index.bzl` file is generated
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that exposes a constant for all locales the repository contains data for. This can be used to
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generate pre-declared outputs.
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"""
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cldr_data_repository = repository_rule(
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implementation = _cldr_data_repository_impl,
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attrs = {
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"urls": attr.string_dict(doc = """
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Dictionary of URLs that resolve to archives containing CLDR JSON data. These archives
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will be downloaded and extracted at root of the repository. Each key can specify
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a SHA256 checksum for hermetic builds.
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""", mandatory = True),
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"available_locales_path": attr.string(
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doc = """
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Relative path to the JSON data file describing all available locales.
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This file usually resides within the `cldr-core` package
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""",
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default = "cldr-core/availableLocales.json",
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),
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},
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)
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