Merge branch 'allow-to-use-glob-for-ci-changes-detection' into 'master'

Add glob for CI changes detection

See merge request gitlab-org/gitlab-ce!23128

changelogs/unreleased/added-glob-for-ci-changes-detection.yml

+---
+title: Added glob for CI changes detection
+merge_request: 23128
+author: Kirill Zaitsev
+type: added

doc/ci/yaml/README.md

@@ -476,6 +476,7 @@ docker build:
       - Dockerfile
       - docker/scripts/*
       - dockerfiles/**/*
+      - more_scripts/*.{rb,py,sh}
 ```
 In the scenario above, if you are pushing multiple commits to GitLab to an
@@ -485,6 +486,7 @@ one of the commits contains changes to either:
 - The `Dockerfile` file.
 - Any of the files inside `docker/scripts/` directory.
 - Any of the files and subfolders inside `dockerfiles` directory.
+- Any of the files with `rb`, `py`, `sh` extensions inside `more_scripts` directory.
 CAUTION: **Warning:**
 There are some caveats when using this feature with new branches and tags. See

lib/gitlab/ci/build/policy/changes.rb

@@ -14,7 +14,7 @@ module Gitlab
             pipeline.modified_paths.any? do |path|
               @globs.any? do |glob|
-                File.fnmatch?(glob, path, File::FNM_PATHNAME | File::FNM_DOTMATCH)
+                File.fnmatch?(glob, path, File::FNM_PATHNAME | File::FNM_DOTMATCH | File::FNM_EXTGLOB)
               end
             end
           end

spec/lib/gitlab/ci/build/policy/changes_spec.rb

@@ -49,6 +49,12 @@ describe Gitlab::Ci::Build::Policy::Changes do
         expect(policy).to be_satisfied_by(pipeline, seed)
       end
+      it 'is satisfied by matching a pattern with a glob' do
+        policy = described_class.new(%w[some/**/*.{rb,txt}])
+
+        expect(policy).to be_satisfied_by(pipeline, seed)
+      end
+
       it 'is not satisfied when pattern does not match path' do
         policy = described_class.new(%w[some/*.rb])
@@ -61,6 +67,12 @@ describe Gitlab::Ci::Build::Policy::Changes do
         expect(policy).not_to be_satisfied_by(pipeline, seed)
       end
+      it 'is not satified when pattern with glob does not match' do
+        policy = described_class.new(%w[invalid/*.{md,rake}])
+
+        expect(policy).not_to be_satisfied_by(pipeline, seed)
+      end
+
       context 'when pipelines does not run for a branch update' do
         before do
           pipeline.before_sha = Gitlab::Git::BLANK_SHA