65 lines
1.9 KiB
Ruby
65 lines
1.9 KiB
Ruby
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# frozen_string_literal: true
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module Gitlab
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module Ci
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module Build
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class Rules::Rule::Clause::Exists < Rules::Rule::Clause
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# The maximum number of patterned glob comparisons that will be
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# performed before the rule assumes that it has a match
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MAX_PATTERN_COMPARISONS = 10_000
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def initialize(globs)
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globs = Array(globs)
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@top_level_only = globs.all?(&method(:top_level_glob?))
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@exact_globs, @pattern_globs = globs.partition(&method(:exact_glob?))
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end
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def satisfied_by?(pipeline, seed)
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paths = worktree_paths(pipeline)
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exact_matches?(paths) || pattern_matches?(paths)
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end
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private
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def worktree_paths(pipeline)
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if @top_level_only
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pipeline.top_level_worktree_paths
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else
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pipeline.all_worktree_paths
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end
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end
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def exact_matches?(paths)
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@exact_globs.any? { |glob| paths.bsearch { |path| glob <=> path } }
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end
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def pattern_matches?(paths)
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comparisons = 0
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@pattern_globs.any? do |glob|
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paths.any? do |path|
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comparisons += 1
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comparisons > MAX_PATTERN_COMPARISONS || pattern_match?(glob, path)
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end
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end
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end
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def pattern_match?(glob, path)
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File.fnmatch?(glob, path, File::FNM_PATHNAME | File::FNM_DOTMATCH | File::FNM_EXTGLOB)
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end
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# matches glob patterns that only match files in the top level directory
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def top_level_glob?(glob)
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!glob.include?('/') && !glob.include?('**')
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end
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# matches glob patterns that have no metacharacters for File#fnmatch?
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def exact_glob?(glob)
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!glob.include?('*') && !glob.include?('?') && !glob.include?('[') && !glob.include?('{')
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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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