[Rakefile] Ensure hg is installed before rebuilding the integration fixtures

Closes https://github.com/CocoaPods/CocoaPods/issues/2977

[Rakefile] Ensure hg is installed before rebuilding the integration fixtures
Closes https://github.com/CocoaPods/CocoaPods/issues/2977
9fbba319 · Samuel E. Giddins · 8d05a2ef · 9fbba319
Commit 9fbba319 authored Dec 25, 2014 by Samuel E. Giddins
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--- a/Rakefile
+++ b/Rakefile
@@ -171,6 +171,10 @@ begin

    desc "Rebuilds integration fixtures"
    task :rebuild_integration_fixtures do
+      if `which hg` && !$?.success?
+        puts red('[!] Mercurial (`hg`) must be installed to rebuild the integration fixtures.')
+        exit 1
+      end
      title 'Running Integration tests'
      sh 'rm -rf spec/cocoapods-integration-specs/tmp'
      title 'Building all the fixtures'