Check for compilation success, and lib folder

If script/bootstrap hasn't been run, then running script/test returns
the slightly cryptic error message:

  Error: Could not find or load main class clojure.main

This patch checks if the lib folder exists and has files in it. If not
it prompts the user to run script/bootstrap and exits.

This patch also adds a check for CLJS compilation success before running
tests against the various VM engines.

Author: danielcompton

bin/cljsc

@@ -7,6 +7,11 @@ if [ "$CLOJURESCRIPT_HOME" = "" ]; then
   CLOJURESCRIPT_HOME="`dirname $0`/.."
 fi
 
+if ! test "$(ls -A "$CLOJURESCRIPT_HOME/lib" 2>/dev/null)"; then
+    >&2 echo lib/ folder is empty, have you run \`script/bootstrap\`?
+    exit 1
+fi
+
 CLJSC_CP=''
 for next in lib/*: src/main/clojure: src/main/cljs: src/test/cljs; do
   CLJSC_CP="${CLJSC_CP}${CLOJURESCRIPT_HOME}/${next}"

script/test

@@ -8,7 +8,10 @@ mkdir -p builds/out-adv
 possible=4
 ran=0
 
-bin/cljsc src/test/cljs "{:optimizations :advanced :output-wrapper true :verbose true :compiler-stats true :parallel-build true :output-dir \"builds/out-adv\"}" > builds/out-adv/core-advanced-test.js
+if ! bin/cljsc src/test/cljs "{:optimizations :advanced :output-wrapper true :verbose true :compiler-stats true :parallel-build true :output-dir \"builds/out-adv\"}" > builds/out-adv/core-advanced-test.js; then
+  >&2 echo ClojureScript compilation failed
+  exit 1
+fi;
 
 if [ "$V8_HOME" = "" ]; then
   echo "V8_HOME not set, skipping V8 tests"

script/test-self-host

@@ -4,7 +4,10 @@
 rm -rf builds/out-self
 mkdir -p builds/out-self
 
-bin/cljsc src/test/self/self_host  "{:optimizations :simple :static-fns true :output-dir \"builds/out-self\" :optimize-constants true :verbose true :compiler-stats true :parallel-build true :target :nodejs}" > builds/out-self/core-self-test.js
+if ! bin/cljsc src/test/self/self_host  "{:optimizations :simple :static-fns true :output-dir \"builds/out-self\" :optimize-constants true :verbose true :compiler-stats true :parallel-build true :target :nodejs}" > builds/out-self/core-self-test.js; then
+  >&2 echo ClojureScript compilation failed
+  exit 1
+fi;
 
 echo "Testing with Node"
 node builds/out-self/core-self-test.js

script/test-self-parity

@@ -15,7 +15,10 @@ mkdir -p builds/out-self-parity/clojure/test
 mv clojure/template.clj builds/out-self-parity/clojure
 mv clojure/test builds/out-self-parity/clojure
 
-bin/cljsc src/test/self/self_parity  "{:optimizations :none :output-to \"builds/out-self-parity/main.js\" :output-dir \"builds/out-self-parity\" :main self-parity.test :target :nodejs}"
+if ! bin/cljsc src/test/self/self_parity "{:optimizations :none :output-to \"builds/out-self-parity/main.js\" :output-dir \"builds/out-self-parity\" :main self-parity.test :target :nodejs}"; then
+  >&2 echo ClojureScript compilation failed
+  exit 1
+fi;
 
 echo "Testing with Node"
 node builds/out-self-parity/main.js

script/test-simple

@@ -8,7 +8,10 @@ possible=4
 ran=0
 
 #bin/cljsc test >out/core-test.js
-bin/cljsc src/test/cljs  "{:optimizations :simple :static-fns true :output-dir \"builds/out-simp\" :cache-analysis true :output-wrapper true :compiler-stats true}" > builds/out-simp/core-simple-test.js
+if ! bin/cljsc src/test/cljs  "{:optimizations :simple :static-fns true :output-dir \"builds/out-simp\" :cache-analysis true :output-wrapper true :compiler-stats true}" > builds/out-simp/core-simple-test.js; then
+  >&2 echo ClojureScript compilation failed
+  exit 1
+fi;
 
 if [ "$V8_HOME" = "" ]; then
   echo "V8_HOME not set, skipping V8 tests"