support scope-snapshot

.travis.yml

@@ -28,12 +28,14 @@ env:
     - RACKET_VERSION=6.1
     - RACKET_VERSION=6.1.1
     - RACKET_VERSION=HEAD
+    - RACKET_VERSION=SCOPE_SNAPSHOT
 
 # You may want to test against certain versions of Racket, without
 # having them count against the overall success/failure.
 matrix:
   allow_failures:
     - env: RACKET_VERSION=HEAD
+    - env: RACKET_VERSION=SCOPE_SNAPSHOT
   # Fast finish: Overall build result is determined as soon as any of
   # its rows have failed, or, all of its rows that aren't allowed to
   # fail have succeeded.

install-racket.sh

@@ -5,6 +5,8 @@ set -e
 
 if [[ "$RACKET_VERSION" = "HEAD" ]]; then
     URL="http://plt.eecs.northwestern.edu/snapshots/current/installers/racket-test-current-x86_64-linux-precise.sh"
+elif [[ "$RACKET_VERSION" = "SCOPE_SNAPSHOT" ]]; then
+    URL="http://www.cs.utah.edu/~mflatt/tmp/scope-snapshot/installers/racket-6.2.900.3-x86_64-linux.sh"
 elif [[ "$RACKET_VERSION" = 5.9* ]]; then
     URL="http://download.racket-lang.org/installers/${RACKET_VERSION}/racket-${RACKET_VERSION}-x86_64-linux-ubuntu-quantal.sh"
 elif [[ "$RACKET_VERSION" = 6.* ]]; then