100 lines
3.7 KiB
Ruby
100 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Golang
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extend self
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def local_module_prefix
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@gitlab_prefix ||= "#{Settings.build_gitlab_go_url}/".freeze
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end
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def semver_tag?(tag)
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return false if tag.dereferenced_target.nil?
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Packages::SemVer.match?(tag.name, prefixed: true)
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end
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def pseudo_version?(version)
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return false unless version
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if version.is_a? String
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version = parse_semver version
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return false unless version
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end
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pre = version.prerelease
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# Valid pseudo-versions are:
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# vX.0.0-yyyymmddhhmmss-sha1337beef0, when no earlier tagged commit exists for X
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# vX.Y.Z-pre.0.yyyymmddhhmmss-sha1337beef0, when most recent prior tag is vX.Y.Z-pre
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# vX.Y.(Z+1)-0.yyyymmddhhmmss-sha1337beef0, when most recent prior tag is vX.Y.Z
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if version.minor != 0 || version.patch != 0
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m = /\A(.*\.)?0\./.freeze.match pre
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return false unless m
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pre = pre[m[0].length..]
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end
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# This pattern is intentionally more forgiving than the patterns
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# above. Correctness is verified by #pseudo_version_commit.
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/\A\d{14}-\h+\z/.freeze.match? pre
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end
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def pseudo_version_commit(project, semver)
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# Per Go's implementation of pseudo-versions, a tag should be
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# considered a pseudo-version if it matches one of the patterns
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# listed in #pseudo_version?, regardless of the content of the
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# timestamp or the length of the SHA fragment. However, an error
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# should be returned if the timestamp is not correct or if the SHA
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# fragment is not exactly 12 characters long. See also Go's
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# implementation of:
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#
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# - [*codeRepo.validatePseudoVersion](https://github.com/golang/go/blob/daf70d6c1688a1ba1699c933b3c3f04d6f2f73d9/src/cmd/go/internal/modfetch/coderepo.go#L530)
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# - [Pseudo-version parsing](https://github.com/golang/go/blob/master/src/cmd/go/internal/modfetch/pseudo.go)
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# - [Pseudo-version request processing](https://github.com/golang/go/blob/master/src/cmd/go/internal/modfetch/coderepo.go)
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# Go ignores anything before '.' or after the second '-', so we will do the same
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timestamp, sha = semver.prerelease.split('-').last 2
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timestamp = timestamp.split('.').last
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commit = project.repository.commit_by(oid: sha)
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# Error messages are based on the responses of proxy.golang.org
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# Verify that the SHA fragment references a commit
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raise ArgumentError.new 'invalid pseudo-version: unknown commit' unless commit
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# Require the SHA fragment to be 12 characters long
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raise ArgumentError.new 'invalid pseudo-version: revision is shorter than canonical' unless sha.length == 12
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# Require the timestamp to match that of the commit
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raise ArgumentError.new 'invalid pseudo-version: does not match version-control timestamp' unless commit.committed_date.strftime('%Y%m%d%H%M%S') == timestamp
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commit
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end
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def parse_semver(str)
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Packages::SemVer.parse(str, prefixed: true)
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end
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def pkg_go_dev_url(name, version = nil)
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if version
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"https://pkg.go.dev/#{name}@#{version}"
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else
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"https://pkg.go.dev/#{name}"
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end
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end
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def package_url(name, version = nil)
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return unless UrlSanitizer.valid?("https://#{name}")
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return pkg_go_dev_url(name, version) unless name.starts_with?(local_module_prefix)
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# This will not work if `name` refers to a subdirectory of a project. This
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# could be expanded with logic similar to Gitlab::Middleware::Go to locate
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# the project, check for permissions, and return a smarter result.
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"#{Gitlab.config.gitlab.protocol}://#{name}/"
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end
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end
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end
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