mirror of
https://github.com/carbon-language/carbon-lang.git
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Chandler Carruth
547c8a6b00
With this our infrastructure should match the final form of proposal #4105 that established our versioning scheme.
66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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# Exceptions. See /LICENSE for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""Compute the version string."""
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load("@bazel_skylib//rules:common_settings.bzl", "BuildSettingInfo")
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load("//:version_base.bzl", "version_base")
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def _validate_nightly_date(date):
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date_components = date.split(".", 2)
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if len(date_components) != 3:
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fail("Must provide a nightly date in 'YYYY.MM.DD' format, found '{}'.".format(date))
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year = date_components[0]
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if len(year) != 4 or not year.isdigit():
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fail("The nightly date year was not a sequence of four digits.")
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month = date_components[1]
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if len(month) != 2 or not month.isdigit():
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fail("The nightly date month was not a sequence of two digits.")
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day = date_components[2]
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if len(day) != 2 or not day.isdigit():
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fail("The nightly date day was not a sequence of two digits.")
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def compute_version(ctx):
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"""Compute the version string.
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Args:
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ctx: The context for a rule computing the version.
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Returns:
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The version string.
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"""
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version = version_base
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# See if we need to append a pre-release suffix to the version.
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#
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# TODO: We should more fully check for erroneous combinations of flags here
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# to help ensure users don't get surprising results.
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if not ctx.attr._release_flag[BuildSettingInfo].value:
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pre_release = ctx.attr._pre_release_flag[BuildSettingInfo].value
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pre_release_numbers = {
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"rc": ctx.attr._rc_number_flag[BuildSettingInfo].value,
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}
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if pre_release in pre_release_numbers:
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number = pre_release_numbers[pre_release]
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if number < 0:
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fail("Must provide a non-negative {} number when building that pre-release.".format(pre_release))
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version += "-{0}.{1}".format(pre_release, number)
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elif pre_release == "nightly":
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date = ctx.attr._nightly_date_flag[BuildSettingInfo].value
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_validate_nightly_date(date)
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version += "-0.nightly.{}".format(date)
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elif pre_release == "dev":
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version += "-0.dev"
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else:
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fail("Invalid pre-release flag: " + pre_release)
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return version
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VERSION_ATTRS = {
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"_nightly_date_flag": attr.label(default = ":nightly_date"),
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"_pre_release_flag": attr.label(default = ":pre_release"),
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"_rc_number_flag": attr.label(default = ":rc_number"),
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"_release_flag": attr.label(default = ":release"),
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}
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