validate: Add --build-only

This will allow us to split up Harbormaster output for the build and
test stages of validation.

Test Plan: `./validate --build-only && ./validate --testsuite-only`

Reviewers: thomie, hvr, austin

Differential Revision: https://phabricator.haskell.org/D2553

1 files changed, 15 insertions, 0 deletions

diff --git a/validate b/validate
index 9d58bdefca..cf45648c28 100755
--- a/validate
+++ b/validate
@@ -14,6 +14,7 @@ Flags:
   --no-clean        don't make clean first, just carry on from
                     a previous interrupted validation run
   --testsuite-only  don't build the compiler, just run the test suite
+  --build-only      don't test the compiler, just build it
   --hpc             build stage2 with -fhpc, and see how much of the
                     compiler the test suite covers.
                     2008-07-01: 63% slower than the default.
@@ -46,6 +47,7 @@ EOF
 
 no_clean=0
 testsuite_only=0
+build_only=0
 hpc=NO
 speed=NORMAL
 use_dph=0
@@ -64,6 +66,9 @@ do
     --testsuite-only)
         testsuite_only=1
         ;;
+    --build-only)
+        build_only=1
+        ;;
     --hpc)
         hpc=YES
         ;;
@@ -240,6 +245,16 @@ fi # testsuite-only
 # -----------------------------------------------------------------------------
 # Run the testsuite
 
+if [ "$build_only" -eq 1 ]; then
+    cat <<EOF
+-------------------------------------------------------------------
+Congratulations!  This tree has compiled successfully.
+
+You can now test your new compiler using ./validate --testsuite-only.
+EOF
+    exit 0
+fi
+
 if [ "$hpc" = YES ]
 then
     # XXX With threads we'd need to give a different tix file to each thread