cabal.project - use source repository stanzas.

appveyor.yml

@@ -87,8 +87,6 @@ test_script:
   - if "%BUILD_TYPE%" == "cabal" (
         cabal --version &&
         mkdir -p "%CABAL_STORE%"/ghc-8.6.1/package.db &&
-        git clone https://github.com/vincenthz/hs-memory vender/hs-memory &&
-        git clone https://github.com/jgm/pandoc-citeproc vendor/pandoc-citeproc &&
         cabal --store-dir="%CABAL_STORE%" new-update &&
         cabal --store-dir="%CABAL_STORE%" new-build -w %GHC% --allow-newer -flua_32bits -fembed_data_files . pandoc-citeproc &&
         forfiles /P .\dist-newstyle /M pandoc*.exe /C "cmd /C cp @file .\windows\ "

cabal.project

@@ -1 +1,11 @@
-packages: pandoc.cabal vendor/*/*.cabal
+packages: pandoc.cabal
+
+source-repository-package
+    type: git
+    location: https://github.com/jgm/pandoc-citeproc.git
+    tag: f7654ae2128f374c0e88fd30bcd3138c50eeb84a
+
+source-repository-package
+    type: git
+    location: https://github.com/vincenthz/hs-memory
+    tag: 7cb4a2c2ce4b0b142eb041a3a319a7ddec80d045