Merge pull request #18864 from Homebrew/systemd-new-line

service: end systemd configs with a new line

Library/Homebrew/service.rb

@@ -454,16 +454,6 @@ module Homebrew
     # @return [String]
     sig { returns(String) }
     def to_systemd_unit
-      unit = <<~EOS
-        [Unit]
-        Description=Homebrew generated unit for #{@formula.name}
-
-        [Install]
-        WantedBy=default.target
-
-        [Service]
-      EOS
-
       # command needs to be first because it initializes all other values
       cmd = command&.map { |arg| Utils::Shell.sh_quote(arg) }
                    &.join(" ")
@@ -481,24 +471,22 @@ module Homebrew
       options << "StandardError=append:#{File.expand_path(@error_log_path)}" if @error_log_path.present?
       options += @environment_variables.map { |k, v| "Environment=\"#{k}=#{v}\"" } if @environment_variables.present?
 
-      unit + options.join("\n")
+      <<~SYSTEMD
+        [Unit]
+        Description=Homebrew generated unit for #{@formula.name}
+
+        [Install]
+        WantedBy=default.target
+
+        [Service]
+        #{options.join("\n")}
+      SYSTEMD
     end
 
     # Returns a `String` systemd unit timer.
     # @return [String]
     sig { returns(String) }
     def to_systemd_timer
-      timer = <<~EOS
-        [Unit]
-        Description=Homebrew generated timer for #{@formula.name}
-
-        [Install]
-        WantedBy=timers.target
-
-        [Timer]
-        Unit=#{service_name}
-      EOS
-
       options = []
       options << "Persistent=true" if @run_type == RUN_TYPE_CRON
       options << "OnUnitActiveSec=#{@interval}" if @run_type == RUN_TYPE_INTERVAL
@@ -509,7 +497,17 @@ module Homebrew
         options << "OnCalendar=#{@cron[:Weekday]}-*-#{@cron[:Month]}-#{@cron[:Day]} #{hours}:#{minutes}:00"
       end
 
-      timer + options.join("\n")
+      <<~SYSTEMD
+        [Unit]
+        Description=Homebrew generated timer for #{@formula.name}
+
+        [Install]
+        WantedBy=timers.target
+
+        [Timer]
+        Unit=#{service_name}
+        #{options.join("\n")}
+      SYSTEMD
     end
 
     # Prepare the service hash for inclusion in the formula API JSON.

Library/Homebrew/test/service_spec.rb

@@ -718,7 +718,7 @@ RSpec.describe Homebrew::Service do
 
       unit = f.service.to_systemd_unit
       std_path = "#{HOMEBREW_PREFIX}/bin:#{HOMEBREW_PREFIX}/sbin:/usr/bin:/bin:/usr/sbin:/sbin"
-      unit_expect = <<~EOS
+      unit_expect = <<~SYSTEMD
         [Unit]
         Description=Homebrew generated unit for formula_name
 
@@ -737,8 +737,8 @@ RSpec.describe Homebrew::Service do
         StandardError=append:#{HOMEBREW_PREFIX}/var/log/beanstalkd.error.log
         Environment="PATH=#{std_path}"
         Environment="FOO=BAR"
-      EOS
-      expect(unit).to eq(unit_expect.strip)
+      SYSTEMD
+      expect(unit).to eq(unit_expect)
     end
 
     it "returns valid partial oneshot unit" do
@@ -751,7 +751,7 @@ RSpec.describe Homebrew::Service do
       end
 
       unit = f.service.to_systemd_unit
-      unit_expect = <<~EOS
+      unit_expect = <<~SYSTEMD
         [Unit]
         Description=Homebrew generated unit for formula_name
 
@@ -761,8 +761,8 @@ RSpec.describe Homebrew::Service do
         [Service]
         Type=oneshot
         ExecStart=#{HOMEBREW_PREFIX}/opt/#{name}/bin/beanstalkd
-      EOS
-      expect(unit).to eq(unit_expect.strip)
+      SYSTEMD
+      expect(unit).to eq(unit_expect)
     end
 
     it "expands paths" do
@@ -774,7 +774,7 @@ RSpec.describe Homebrew::Service do
       end
 
       unit = f.service.to_systemd_unit
-      unit_expect = <<~EOS
+      unit_expect = <<~SYSTEMD
         [Unit]
         Description=Homebrew generated unit for formula_name
 
@@ -785,8 +785,8 @@ RSpec.describe Homebrew::Service do
         Type=simple
         ExecStart=#{HOMEBREW_PREFIX}/opt/#{name}/bin/beanstalkd
         WorkingDirectory=#{Dir.home}
-      EOS
-      expect(unit).to eq(unit_expect.strip)
+      SYSTEMD
+      expect(unit).to eq(unit_expect)
     end
   end
 
@@ -801,7 +801,7 @@ RSpec.describe Homebrew::Service do
       end
 
       unit = f.service.to_systemd_timer
-      unit_expect = <<~EOS
+      unit_expect = <<~SYSTEMD
         [Unit]
         Description=Homebrew generated timer for formula_name
 
@@ -811,8 +811,8 @@ RSpec.describe Homebrew::Service do
         [Timer]
         Unit=homebrew.formula_name
         OnUnitActiveSec=5
-      EOS
-      expect(unit).to eq(unit_expect.strip)
+      SYSTEMD
+      expect(unit).to eq(unit_expect)
     end
 
     it "returns valid partial timer" do
@@ -824,7 +824,7 @@ RSpec.describe Homebrew::Service do
       end
 
       unit = f.service.to_systemd_timer
-      unit_expect = <<~EOS
+      unit_expect = <<~SYSTEMD
         [Unit]
         Description=Homebrew generated timer for formula_name
 
@@ -833,7 +833,8 @@ RSpec.describe Homebrew::Service do
 
         [Timer]
         Unit=homebrew.formula_name
-      EOS
+
+      SYSTEMD
       expect(unit).to eq(unit_expect)
     end
 
@@ -872,7 +873,7 @@ RSpec.describe Homebrew::Service do
         end
 
         unit = f.service.to_systemd_timer
-        unit_expect = <<~EOS
+        unit_expect = <<~SYSTEMD
           [Unit]
           Description=Homebrew generated timer for formula_name
 
@@ -883,8 +884,8 @@ RSpec.describe Homebrew::Service do
           Unit=homebrew.formula_name
           Persistent=true
           OnCalendar=#{calendar}
-        EOS
-        expect(unit).to eq(unit_expect.chomp)
+        SYSTEMD
+        expect(unit).to eq(unit_expect)
       end
     end
   end