Pgpm::Deb::Builder #prepare and #create_container methods

Author: qount25

exe/pgpm

@@ -99,7 +99,6 @@ module Pgpm
                     p = Pgpm::ScopedObject.new(p, os, arch)
                     spec = p.to_deb_spec
                   end
-binding.break
                   builder = Pgpm::Deb::Builder.new(spec)
                   builder.build
                 end

lib/pgpm/deb/builder.rb

@@ -6,24 +6,51 @@ class Builder
 
       def initialize(spec)
         @spec = spec
+        @image_name = "pgpm-debian12"
+        @container_name = "pgpm-debian12_build-#{Time.now.to_i}_#{rand(10000)}"
       end
 
       def build
         puts "build()"
-        p @spec
-        #create_container
+        prepare
         #generate_deb_src_files
+        create_container
         #run_pbuilder
         #copy_build_from_container
-        #destroy_container
+        #cleanup
       end
 
       private
 
+      def prepare
+        puts "Preparing build..."
+        puts "  Creating container dir structure..."
+        @pgpm_dir  = Dir.mktmpdir
+        Dir.mkdir "#{@pgpm_dir}/source"
+        Dir.mkdir "#{@pgpm_dir}/out"
+        puts "  Copying #{@spec.package.source.to_s} to #{@pgpm_dir}/source/"
+        FileUtils.copy_entry @spec.package.source.to_s, "#{@pgpm_dir}/source/"
+      end
+
       def create_container
-        # pull pgpm-enabled debian podman image if doesn't exist locally
-        # create a new container with that image
-        # and @spec.package.source mounted into the container
+        puts "Creating a podman container..."
+        # Check if image exists
+        system("podman image exists #{@image_name}")
+        if $?.to_i > 0 # image doesn't exist -- pull image from a remote repository
+          puts "  Pulling image #{@image_name}..."
+          # TODO
+        else
+          puts "  Image #{@image_name} already exists! OK"
+        end
+
+        create_opts = " -v #{@pgpm_dir}:/root/pgpm"
+        create_opts += ":z" if selinux_enabled?
+        create_opts += " --privileged"
+        create_opts += " --name #{@container_name} #{@image_name}"
+
+        puts "  Creating and starting container #{@container_name}"
+        puts "    podman run -dti #{create_opts}"
+        system("podman run -dti #{create_opts}")
       end
 
       def generate_deb_src_files
@@ -40,16 +67,18 @@ def run_pbuilder
       def copy_build_from_container
       end
 
-      def copy_into_container(dest_dir_in_container)
-      end
-
-      def copy_from_container(dest_dir_on_host)
+      def run_container_command(cmd)
       end
 
-      def destroy_container
+      def cleanup
       end
 
-      def run_container_command(cmd)
+      # Needed because SELinux requires :z suffix for mounted directories to
+      # be accessible -- otherwise we get "Permission denied" when cd into a
+      # mounted dir inside the container.
+      def selinux_enabled?
+        # This returns true or false by itself
+        system("sestatus | grep 'SELinux status' | grep -o 'enabled'")
       end
 
       def safe_package_name