feat: started adding download functionality

Author: isabel-anastasiadis-boost

Gemfile

@@ -8,5 +8,6 @@ gemspec
 gem "colorize"
 gem "json"
 gem "rake", "~> 13.0"
+gem "rest-client"
 gem "rspec", "~> 3.0"
 gem "rubocop", "~> 1.21"

Gemfile.lock

@@ -4,21 +4,36 @@ PATH
     codeclimate_diff (0.1.1)
       json
       optparse
+      rest-client
 
 GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
     colorize (0.8.1)
     diff-lcs (1.5.0)
+    domain_name (0.5.20190701)
+      unf (>= 0.0.5, < 1.0.0)
+    http-accept (1.7.0)
+    http-cookie (1.0.5)
+      domain_name (~> 0.5)
     json (2.6.2)
+    mime-types (3.4.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2022.0105)
+    netrc (0.11.0)
     optparse (0.2.0)
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.6.0)
+    rest-client (2.1.0)
+      http-accept (>= 1.7.0, < 2.0)
+      http-cookie (>= 1.0.2, < 2.0)
+      mime-types (>= 1.16, < 4.0)
+      netrc (~> 0.8)
     rexml (3.2.5)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
@@ -46,6 +61,9 @@ GEM
     rubocop-ast (1.22.0)
       parser (>= 3.1.1.0)
     ruby-progressbar (1.11.0)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.8.2)
     unicode-display_width (2.3.0)
 
 PLATFORMS
@@ -57,6 +75,7 @@ DEPENDENCIES
   colorize
   json
   rake (~> 13.0)
+  rest-client
   rspec (~> 3.0)
   rubocop (~> 1.21)
 

codeclimate_diff.gemspec

@@ -28,6 +28,7 @@ Gem::Specification.new do |spec|
   # Uncomment to register a new dependency of your gem
   spec.add_dependency("json")
   spec.add_dependency("optparse")
+  spec.add_dependency("rest-client")
 
   # For more information and examples about making a new gem, check out our
   # guide at: https://bundler.io/guides/creating_gem.html

lib/codeclimate_diff/configuration.rb

@@ -8,6 +8,7 @@ class Configuration
     def initialize
       @gitlab = {
         main_branch_name: "main",
+        download_baseline_from_pipeline: false,
         project_id: nil,
         host: nil,
         personal_access_token: nil

lib/codeclimate_diff/downloader.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require "rest-client"
+
+module CodeclimateDiff
+  class Downloader
+    def self.refresh_baseline_if_configured
+      should_download = CodeclimateDiff.configuration.gitlab[:download_baseline_from_pipeline]
+      return unless should_download
+
+      branch_name = CodeclimateDiff.configuration.gitlab[:main_branch_name]
+      project_id = CodeclimateDiff.configuration.gitlab[:project_id]
+      host = CodeclimateDiff.configuration.gitlab[:host]
+      personal_access_token = CodeclimateDiff.configuration.gitlab[:personal_access_token]
+
+      # curl --output codeclimate_diff_baseline.json --header "PRIVATE-TOKEN: MYTOKEN" "https://gitlab.digitalnz.org/api/v4/projects/85/jobs/artifacts/main/raw/codeclimate_diff_baseline.json?job=code_quality"
+      url = "#{host}/api/v4/projects/#{project_id}/jobs/artifacts/#{branch_name}/raw/codeclimate_diff_baseline.json?job=code_quality"
+      response = RestClient.get(url, { "PRIVATE-TOKEN": personal_access_token })
+      File.write("codeclimate_diff_baseline.json", response.body)
+    rescue StandardError => e
+      puts e
+    end
+  end
+end

lib/codeclimate_diff/runner.rb

@@ -5,6 +5,7 @@
 require_relative "./codeclimate_wrapper"
 require_relative "./result_printer"
 require_relative "./issue_sorter"
+require_relative "./downloader"
 
 module CodeclimateDiff
   class Runner
@@ -33,6 +34,8 @@ def self.calculate_issues_in_changed_files(changed_filenames)
     end
 
     def self.calculate_preexisting_issues_in_changed_files(changed_filenames)
+      Downloader.refresh_baseline_if_configured
+
       puts "Extracting relevant preexisting issues..."
       all_issues = JSON.parse(File.read("./codeclimate_diff_baseline.json"))