58 lines
1.9 KiB
Ruby
58 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Diff
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class DiffRefs
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attr_reader :base_sha
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attr_reader :start_sha
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attr_reader :head_sha
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def initialize(base_sha:, start_sha: base_sha, head_sha:)
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@base_sha = base_sha
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@start_sha = start_sha
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@head_sha = head_sha
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end
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def ==(other)
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other.is_a?(self.class) &&
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Git.shas_eql?(base_sha, other.base_sha) &&
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Git.shas_eql?(start_sha, other.start_sha) &&
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Git.shas_eql?(head_sha, other.head_sha)
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end
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alias_method :eql?, :==
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def hash
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[self.class, base_sha, start_sha, head_sha].hash
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end
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# There is only one case in which we will have `start_sha` and `head_sha`,
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# but not `base_sha`, which is when a diff is generated between an
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# orphaned branch and another branch, which means there _is_ no base, but
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# we're still able to highlight it, and to create diff notes, which are
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# the primary things `DiffRefs` are used for.
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# `DiffRefs` are "complete" when they have `start_sha` and `head_sha`,
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# because `base_sha` can always be derived from this, to return an actual
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# sha, or `nil`.
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# We have `base_sha` directly available on `DiffRefs` because it's faster#
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# than having to look it up in the repo every time.
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def complete?
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start_sha && head_sha
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end
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def compare_in(project)
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# We're at the initial commit, so just get that as we can't compare to anything.
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if Gitlab::Git.blank_ref?(start_sha)
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project.commit(head_sha)
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else
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straight = start_sha == base_sha
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CompareService.new(project, head_sha).execute(project,
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start_sha,
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base_sha: base_sha,
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straight: straight)
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end
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end
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end
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end
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end
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