[lit] Change --show-{tests,suites} to exit after printing.

- This is a more sensible behavior than printing and also running tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188009 91177308-0d34-0410-b5e6-96231b3b80d8

docs/CommandGuide/lit.rst

@@ -149,7 +149,11 @@ ADDITIONAL OPTIONS
 
 .. option:: --show-suites
 
- List the discovered test suites as part of the standard output.
+ List the discovered test suites and exit.
+
+.. option:: --show-tests
+
+ List all of the the discovered tests and exit.
 
 EXIT STATUS
 -----------

utils/lit/lit/main.py

@@ -311,7 +311,10 @@ def main(builtinParameters = {}):
                 ts_tests.sort(key = lambda test: test.path_in_suite)
                 for test in ts_tests:
                     print('  %s' % (test.getFullName(),))
-        
+
+        # Exit.
+        sys.exit(0)
+
     # Select and order the tests.
     numTotalTests = len(tests)
 

utils/lit/tests/discovery.py

@@ -1,7 +1,7 @@
 # Check the basic discovery process, including a sub-suite.
 #
 # RUN: %{lit} %{inputs}/discovery \
-# RUN:   -j 1 --debug --show-tests --show-suites --max-tests 0 \
+# RUN:   -j 1 --debug --show-tests --show-suites \
 # RUN:   -v > %t.out 2> %t.err
 # RUN: FileCheck --check-prefix=CHECK-BASIC-OUT < %t.out %s
 # RUN: FileCheck --check-prefix=CHECK-BASIC-ERR < %t.err %s
@@ -24,7 +24,6 @@
 # CHECK-BASIC-OUT: top-level-suite :: subdir/test-three
 # CHECK-BASIC-OUT: top-level-suite :: test-one
 # CHECK-BASIC-OUT: top-level-suite :: test-two
-# CHECK-BASIC-OUT: -- Testing: 0
 
 
 # Check discovery when exact test names are given.
@@ -32,19 +31,18 @@
 # RUN: %{lit} \
 # RUN:     %{inputs}/discovery/subdir/test-three.py \
 # RUN:     %{inputs}/discovery/subsuite/test-one.txt \
-# RUN:   -j 1 --show-tests --show-suites --max-tests 0 -v > %t.out
+# RUN:   -j 1 --show-tests --show-suites -v > %t.out
 # RUN: FileCheck --check-prefix=CHECK-EXACT-TEST < %t.out %s
 #
 # CHECK-EXACT-TEST: -- Available Tests --
 # CHECK-EXACT-TEST: sub-suite :: test-one
 # CHECK-EXACT-TEST: top-level-suite :: subdir/test-three
-# CHECK-EXACT-TEST: -- Testing: 0
 
 
 # Check discovery when using an exec path.
 #
 # RUN: %{lit} %{inputs}/exec-discovery \
-# RUN:   -j 1 --debug --show-tests --show-suites --max-tests 0 \
+# RUN:   -j 1 --debug --show-tests --show-suites \
 # RUN:   -v > %t.out 2> %t.err
 # RUN: FileCheck --check-prefix=CHECK-ASEXEC-OUT < %t.out %s
 # RUN: FileCheck --check-prefix=CHECK-ASEXEC-ERR < %t.err %s
@@ -70,7 +68,6 @@
 # CHECK-ASEXEC-OUT: top-level-suite :: subdir/test-three
 # CHECK-ASEXEC-OUT: top-level-suite :: test-one
 # CHECK-ASEXEC-OUT: top-level-suite :: test-two
-# CHECK-ASEXEC-OUT: -- Testing: 0
 
 # Check discovery when exact test names are given.
 #
@@ -78,12 +75,11 @@
 #
 # RUN: %{lit} \
 # RUN:     %{inputs}/exec-discovery/subdir/test-three.py \
-# RUN:   -j 1 --show-tests --show-suites --max-tests 0 -v > %t.out
+# RUN:   -j 1 --show-tests --show-suites -v > %t.out
 # RUN: FileCheck --check-prefix=CHECK-ASEXEC-EXACT-TEST < %t.out %s
 #
 # CHECK-ASEXEC-EXACT-TEST: -- Available Tests --
 # CHECK-ASEXEC-EXACT-TEST: top-level-suite :: subdir/test-three
-# CHECK-ASEXEC-EXACT-TEST: -- Testing: 0
 
 
 # Check that we don't recurse infinitely when loading an site specific test
@@ -91,7 +87,7 @@
 #
 # RUN: %{lit} \
 # RUN:     %{inputs}/exec-discovery-in-tree/obj/ \
-# RUN:   -j 1 --show-tests --show-suites --max-tests 0 -v > %t.out
+# RUN:   -j 1 --show-tests --show-suites -v > %t.out
 # RUN: FileCheck --check-prefix=CHECK-ASEXEC-INTREE < %t.out %s
 #
 #      CHECK-ASEXEC-INTREE:   exec-discovery-in-tree-suite - 1 tests
@@ -99,4 +95,3 @@
 # CHECK-ASEXEC-INTREE-NEXT:     Exec Root  : {{.*/exec-discovery-in-tree/obj$}}
 # CHECK-ASEXEC-INTREE-NEXT: -- Available Tests --
 # CHECK-ASEXEC-INTREE-NEXT: exec-discovery-in-tree-suite :: test-one
-# CHECK-ASEXEC-INTREE: -- Testing: 0