Feat: Migrate git shard

Refs: #2213
- Migrates git shard to main testsuite project.
- Flattens out the directory structure.
- Some of the deleted utils files might be necessary, `require`
  statements will be resolved in later commits, if that is the case.

Signed-off-by: svteb <[email protected]>

spec/modules/git_spec.cr

@@ -0,0 +1,25 @@
+require "../spec_helper"
+require "colorize"
+
+describe "Git" do
+  it "'installation_found?' should show a git client was located", tags:["git"] do
+    (GitClient.installation_found?).should be_true
+  end
+
+  it "'git_global_response()' should return the information about the git installation", tags:["git"]  do
+    (git_global_response(true)).should contain("git version")
+  end
+
+  it "'git_local_response()' should return the information about the git installation", tags:["git"]  do
+    (git_local_response(true)).should eq("") 
+  end
+
+  it "'git_version()' should return the information about the git version", tags:["git"]  do
+    (git_version(git_global_response)).should match(/(([0-9]{1,3}[\.]){1,2}[0-9]{1,3})/)
+    (git_version(git_local_response)).should contain("")
+  end
+
+  it "'git_installations()' should return the information about the git installation", tags:["git"]  do
+    (git_installation(true)).should contain("git found")
+  end
+end

spec/spec_helper.cr

@@ -3,6 +3,7 @@ require "colorize"
 require "../src/cnf_testsuite"
 require "../src/tasks/utils/utils.cr"
 require "../src/modules/tar/tar.cr"
+require "../src/modules/git.cr"
 
 ENV["CRYSTAL_ENV"] = "TEST" 
 

src/modules/git/constants.cr

@@ -0,0 +1,4 @@
+module GitClient
+	DEFAULT_LOCAL_BINARY_PATH = "tools/git/linux-amd64/git"
+	BASE_CONFIG = "./config.yml"
+end

src/modules/git/git.cr

@@ -0,0 +1,19 @@
+require "log"
+require "./utils/system_information.cr"
+
+module GitClient
+  def self.installation_found?
+    git_installation.includes?("git found")
+  end
+
+  def self.clone(command)
+    Log.info { "GitClient.clone command: #{command}" }
+    status = Process.run("git clone #{command}",
+                         shell: true,
+                         output: output = IO::Memory.new,
+                         error: stderr = IO::Memory.new)
+    Log.info { "GitClient.clone output: #{output.to_s}" }
+    Log.info { "GitClient.clone stderr: #{stderr.to_s}" }
+    {status: status, output: output, error: stderr}
+  end
+end

src/modules/git/utils/system_information.cr

@@ -0,0 +1,78 @@
+require "colorize"
+require "../../src/utils/utils.cr"
+
+def git_installation(verbose=false)
+  gmsg = "No Global git version found"
+  lmsg = "No Local git version found"
+  ggit = git_global_response
+  Log.for("verbose").info { ggit } if verbose
+
+  global_git_version = git_version(ggit, verbose)
+
+  if !global_git_version.empty?
+    gmsg = "Global git found. Version: #{global_git_version}"
+    stdout_success gmsg
+  else
+    stdout_warning gmsg
+  end
+
+  lgit = git_local_response
+  Log.for("verbose").info { lgit } if verbose
+
+  local_git_version = git_version(lgit, verbose)
+
+  if !local_git_version.empty?
+    lmsg = "Local git found. Version: #{local_git_version}"
+    stdout_success lmsg
+  else
+    stdout_warning lmsg
+  end
+
+  # uncomment to fail the installation check
+  # global_git_version = nil
+  # local_git_version = nil
+  # gmsg = "No Global git version found"
+  # lmsg = "No Local git version found"
+  if !(global_git_version && local_git_version)
+    stdout_failure "Git not found"
+    stdout_failure %Q(
+    Linux installation instructions for Git can be found here: https://github.com/git-guides/install-git 
+
+    Install git binary with curl on Linux
+
+    On Debian/Ubuntu:
+
+    sudo apt-get install git-all
+
+    On Fedora
+
+    sudo dnf install git-all
+    )
+  end
+  "#{lmsg} #{gmsg}"
+end 
+
+def git_global_response(verbose=false)
+  status = Process.run("git version", shell: true, output: git_response = IO::Memory.new, error: stderr = IO::Memory.new)
+  Log.for("verbose").info { git_response } if verbose
+  git_response.to_s
+end
+
+def git_local_response(verbose=false)
+  Log.for("verbose").info { local_git_path } if verbose
+  status = Process.run("#{local_git_path} version", shell: true, output: git_response = IO::Memory.new, error: stderr = IO::Memory.new)
+  Log.for("verbose").info { git_response.to_s } if verbose
+  git_response.to_s
+end
+
+def git_version(git_response, verbose=false)
+  # example
+  # git version 1.9.1 
+  resp = git_response.match /git version (([0-9]{1,3}[\.]){1,2}[0-9]{1,3})/
+  Log.for("verbose").info { resp } if verbose
+  if resp
+    "#{resp && resp.not_nil![1]}"
+  else
+    ""
+  end
+end

src/modules/git/utils/utils.cr

@@ -0,0 +1,32 @@
+require "totem"
+require "colorize"
+require "log"
+require "file_utils"
+require "../constants.cr"
+
+def stdout_info(msg)
+  puts msg
+end
+
+def stdout_success(msg)
+  puts msg.colorize(:green)
+end
+
+def stdout_warning(msg)
+  puts msg.colorize(:yellow)
+end
+
+def stdout_failure(msg)
+  puts msg.colorize(:red)
+end
+
+def local_git_path
+  if File.exists?(GitClient::BASE_CONFIG)
+    config = Totem.from_file GitClient::BASE_CONFIG
+    if config[":git_binary_path"]? && config[":git_binary_path"].as_s?
+      return config[":git_binary_path"].as_s
+    end
+  end
+
+  FileUtils.pwd + GitClient::DEFAULT_LOCAL_BINARY_PATH
+end