Auto merge of #5090 - bundler:aa-missing-specs, r=indirect

[Index] Allow pre-release versions in search when the base is pre-release

Closes #5089

4 files changed, 78 insertions, 5 deletions

diff --git a/lib/bundler/index.rb b/lib/bundler/index.rb
index 4529c57279..5bdb102d37 100644
--- a/lib/bundler/index.rb
+++ b/lib/bundler/index.rb
@@ -179,7 +179,8 @@ module Bundler
         end
 
         wants_prerelease = dependency.requirement.prerelease?
-        only_prerelease  = specs.all? {|spec| spec.version.prerelease? }
+        wants_prerelease ||= base && base.any? {|base_spec| base_spec.version.prerelease? }
+        only_prerelease = specs.all? {|spec| spec.version.prerelease? }
 
         unless wants_prerelease || only_prerelease
           found.reject! {|spec| spec.version.prerelease? }
diff --git a/spec/install/gemfile/sources_spec.rb b/spec/install/gemfile/sources_spec.rb
index fd11c3feab..e687e9af41 100644
--- a/spec/install/gemfile/sources_spec.rb
+++ b/spec/install/gemfile/sources_spec.rb
@@ -449,4 +449,70 @@ describe "bundle install with gems on multiple sources" do
       end
     end
   end
+
+  context "when a gem is installed to system gems" do
+    before do
+      install_gemfile! <<-G
+        source "file://#{gem_repo1}"
+        gem "rack"
+      G
+    end
+
+    context "and the gemfile changes" do
+      it "is still able to find that gem from remote sources" do
+        source_uri = "file://#{gem_repo1}"
+        second_uri = "file://#{gem_repo4}"
+
+        build_repo4 do
+          build_gem "rack", "2.0.1.1.forked"
+          build_gem "thor", "0.19.1.1.forked"
+        end
+
+        # When this gemfile is installed...
+        gemfile <<-G
+          source "#{source_uri}"
+
+          source "#{second_uri}" do
+            gem "rack", "2.0.1.1.forked"
+            gem "thor"
+          end
+          gem "rack-obama"
+        G
+
+        # It creates this lockfile.
+        lockfile <<-L
+          GEM
+            remote: #{source_uri}/
+            remote: #{second_uri}/
+            specs:
+              rack (2.0.1.1.forked)
+              rack-obama (1.0)
+                rack
+              thor (0.19.1.1.forked)
+
+          PLATFORMS
+            ruby
+
+          DEPENDENCIES
+            rack (= 2.0.1.1.forked)!
+            rack-obama
+            thor!
+        L
+
+        # Then we change the Gemfile by adding a version to thor
+        gemfile <<-G
+          source "#{source_uri}"
+
+          source "#{second_uri}" do
+            gem "rack", "2.0.1.1.forked"
+            gem "thor", "0.19.1.1.forked"
+          end
+          gem "rack-obama"
+        G
+
+        # But we should still be able to find rack 2.0.1.1.forked and install it
+        bundle! :install
+      end
+    end
+  end
 end
diff --git a/spec/support/artifice/compact_index.rb b/spec/support/artifice/compact_index.rb
index 0afd7fc526..9111ed8211 100644
--- a/spec/support/artifice/compact_index.rb
+++ b/spec/support/artifice/compact_index.rb
@@ -67,9 +67,11 @@ class CompactIndexAPI < Endpoint
       @gems ||= {}
       @gems[gem_repo] ||= begin
         specs = Bundler::Deprecate.skip_during do
-          Marshal.load(File.open(gem_repo.join("specs.4.8")).read).map do |name, version, platform|
-            load_spec(name, version, platform, gem_repo)
-          end
+          %w(specs.4.8 prerelease_specs.4.8).map do |filename|
+            Marshal.load(File.open(gem_repo.join(filename)).read).map do |name, version, platform|
+              load_spec(name, version, platform, gem_repo)
+            end
+          end.flatten
         end
 
         specs.group_by(&:name).map do |name, versions|
diff --git a/spec/support/artifice/endpoint.rb b/spec/support/artifice/endpoint.rb
index 2955889a86..99ffac1c11 100644
--- a/spec/support/artifice/endpoint.rb
+++ b/spec/support/artifice/endpoint.rb
@@ -24,7 +24,11 @@ class Endpoint < Sinatra::Base
       require "rubygems"
       require "bundler"
       Bundler::Deprecate.skip_during do
-        Marshal.load(File.open(gem_repo.join("specs.4.8")).read).map do |name, version, platform|
+        all_specs = %w(specs.4.8 prerelease_specs.4.8).map do |filename|
+          Marshal.load(File.open(gem_repo.join(filename)).read)
+        end.inject(:+)
+
+        all_specs.map do |name, version, platform|
           spec = load_spec(name, version, platform, gem_repo)
           next unless gem_names.include?(spec.name)
           {