Set -DTribitsExMetaProj_SHOW_GIT_COMMIT_PARENTS=ON for multi-repo test (

TriBITSPub#597)

This sets the option:

  -DTribitsExMetaProj_SHOW_GIT_COMMIT_PARENTS=ON

in the inner CMake configuration with a multi-repo setup so we can test the
extraction and printing of the parent commit info.  This tests a call of the
function tribits_generate_single_repo_version_string() for extra repos from
the function tribits_generate_repo_version_file_string().  This test also
validates that the correct Git commands are called since this uses real Git on
a Git repos.

The downside of this updated test is that it makes it a little more difficult
to maintain these tests when we have to update these snapshotted Git repos.

test/ctest_driver/TribitsExampleMetaProject/CMakeLists.txt

@@ -124,6 +124,7 @@ tribits_add_advanced_test( CTestDriver_TribitsExMetaProj_clone_default_branch_re
       ${COMMON_ENV_ARGS}
       TribitsExMetaProj_ENABLE_SECONDARY_TESTED_CODE=TRUE
       CTEST_BUILD_NAME=CTestDriver_TribitsExMetaProj_clone_default_branch_remote
+      TribitsExMetaProj_EXTRA_CONFIGURE_OPTIONS=-DTribitsExMetaProj_SHOW_GIT_COMMIT_PARENTS=ON
       CTEST_SITE=CustomSite
       ${CTEST_S_SCRIPT_ARGS}
     PASS_REGULAR_EXPRESSION_ALL

test/ctest_driver/TribitsExampleMetaProject/data/TribitsExMetaProjRepoVersion.for-testing.txt

@@ -1,9 +1,27 @@
 *** Base Git Repo: TribitsExMetaProj
 863461e [Tue Sep 14 15:05:31 2021 -0600] <[email protected]>
 Merge branch 'tribits-github-snapshot' (TriBITSPub/TriBITS#299)
+    *** Parent 1:
+    e12aad9 [Fri Dec 11 16:17:18 2020 -0700] <[email protected]>
+    Merge branch 'tribits-github-snapshot' (TriBITSPub/TriBITS#309)
+    *** Parent 2:
+    ed38a1f [Tue Sep 14 15:04:06 2021 -0600] <[email protected]>
+    Automatic snapshot commit from TribitsExampleMetaProject at d1e4913
 *** Git Repo: TribitsExampleProject
 94c2b12 [Tue Sep 14 15:18:55 2021 -0600] <[email protected]>
 Merge branch 'tribits-github-snapshot' (TriBITSPub/TriBITS#299)
+    *** Parent 1:
+    59c7057 [Fri Dec 11 16:23:46 2020 -0700] <[email protected]>
+    Merge branch 'tribits-github-snapshot'
+    *** Parent 2:
+    da4197f [Tue Sep 14 15:11:39 2021 -0600] <[email protected]>
+    Automatic snapshot commit from TribitsExampleProject at d95ddbd
 *** Git Repo: TribitsExampleProjectAddons
 d846ae1 [Tue Sep 14 15:23:39 2021 -0600] <[email protected]>
 Merge branch 'tribits-github-snapshot' (TriBITSPub/TriBITS#299)
+    *** Parent 1:
+    226a17e [Tue Feb 19 06:33:23 2019 -0700] <[email protected]>
+    Update README file (tribitspub/tribits#278)
+    *** Parent 2:
+    08f06bb [Tue Sep 14 15:20:24 2021 -0600] <[email protected]>
+    Automatic snapshot commit from TribitsExampleProjectAddons at abb6694