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authorGrzegorz Bizon <grzesiek.bizon@gmail.com>2018-05-14 15:03:10 +0200
committerGrzegorz Bizon <grzesiek.bizon@gmail.com>2018-05-14 15:03:10 +0200
commitf16f2b599412ed1514ba96d81758b9a2e6fd9c1f (patch)
treed317ae48788ddd83751ddf0309378fa564bf1ebd
parentac65257c40052f739492f0648f6b7c06a1c95250 (diff)
downloadgitlab-ce-f16f2b599412ed1514ba96d81758b9a2e6fd9c1f.tar.gz
Add pattern matching variables expression lexeme
-rw-r--r--lib/gitlab/ci/pipeline/expression/lexeme/matches.rb29
-rw-r--r--spec/lib/gitlab/ci/pipeline/expression/lexeme/matches_spec.rb57
2 files changed, 86 insertions, 0 deletions
diff --git a/lib/gitlab/ci/pipeline/expression/lexeme/matches.rb b/lib/gitlab/ci/pipeline/expression/lexeme/matches.rb
new file mode 100644
index 00000000000..806f2082227
--- /dev/null
+++ b/lib/gitlab/ci/pipeline/expression/lexeme/matches.rb
@@ -0,0 +1,29 @@
+module Gitlab
+ module Ci
+ module Pipeline
+ module Expression
+ module Lexeme
+ class Matches < Lexeme::Operator
+ PATTERN = /=~/.freeze
+
+ def initialize(left, right)
+ @left = left
+ @right = right
+ end
+
+ def evaluate(variables = {})
+ text = @left.evaluate(variables)
+ regexp = @right.evaluate(variables)
+
+ regexp.scan(text).any?
+ end
+
+ def self.build(_value, behind, ahead)
+ new(behind, ahead)
+ end
+ end
+ end
+ end
+ end
+ end
+end
diff --git a/spec/lib/gitlab/ci/pipeline/expression/lexeme/matches_spec.rb b/spec/lib/gitlab/ci/pipeline/expression/lexeme/matches_spec.rb
new file mode 100644
index 00000000000..22907b0554a
--- /dev/null
+++ b/spec/lib/gitlab/ci/pipeline/expression/lexeme/matches_spec.rb
@@ -0,0 +1,57 @@
+require 'fast_spec_helper'
+require_dependency 're2'
+
+describe Gitlab::Ci::Pipeline::Expression::Lexeme::Matches do
+ let(:left) { double('left') }
+ let(:right) { double('right') }
+
+ describe '.build' do
+ it 'creates a new instance of the token' do
+ expect(described_class.build('=~', left, right))
+ .to be_a(described_class)
+ end
+ end
+
+ describe '.type' do
+ it 'is an operator' do
+ expect(described_class.type).to eq :operator
+ end
+ end
+
+ describe '#evaluate' do
+ it 'returns false when left and right do not match' do
+ allow(left).to receive(:evaluate).and_return('my-string')
+ allow(right).to receive(:evaluate)
+ .and_return(Gitlab::UntrustedRegexp.new('something'))
+
+ operator = described_class.new(left, right)
+
+ expect(operator.evaluate).to eq false
+ end
+
+ it 'returns true when left and right match' do
+ allow(left).to receive(:evaluate).and_return('my-awesome-string')
+ allow(right).to receive(:evaluate)
+ .and_return(Gitlab::UntrustedRegexp.new('awesome.string$'))
+
+ operator = described_class.new(left, right)
+
+ expect(operator.evaluate).to eq true
+ end
+
+ it 'supports multiline strings' do
+ allow(left).to receive(:evaluate).and_return <<~TEXT
+ My awesome contents
+
+ My-text-string!
+ TEXT
+
+ allow(right).to receive(:evaluate)
+ .and_return(Gitlab::UntrustedRegexp.new('text-string'))
+
+ operator = described_class.new(left, right)
+
+ expect(operator.evaluate).to eq true
+ end
+ end
+end