[PATCH] cmake: accommodate for `UNIT_TEST_SOURCES`

From: Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
Date: Aug 3, 2025, 21:24 UTC
Message-ID: <pull.1947.git.1754256267117.gitgitgadget@gmail.com>

From: Johannes Schindelin <johannes.schindelin@gmx.de>

As part of 9bbc981c6f2 (t/unit-tests: finalize migration of reftable-related tests, 2025-07-24), the explicit list of `UNIT_TEST_PROGRAMS` was turned into a wildcard pattern-derived list.

Let's do the same in the CMake definition.

This fixes build errors with symptoms like this:

  CMake Error at CMakeLists.txt:132 (string):
    string sub-command REPLACE requires at least four arguments.
  Call Stack (most recent call first):
    CMakeLists.txt:1037 (parse_makefile_for_scripts)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
    cmake: accommodate for UNIT_TEST_SOURCES
    
    This fix is needed to build Git using CMake in the wake of the recent
    migration of the reftable tests from being regression tests written in
    Unix shell script to being unit tests in pure C.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1947%2Fdscho%2Freftable-vs-cmake-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1947/dscho/reftable-vs-cmake-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1947

 contrib/buildsystems/CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 25b495fa737..edb0fc04ad7 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -1005,7 +1005,9 @@ parse_makefile_for_sources(clar-test_SOURCES ${CMAKE_SOURCE_DIR}/Makefile "CLAR_
 list(TRANSFORM clar-test_SOURCES REPLACE "\\$\\(UNIT_TEST_DIR\\)/" "${CMAKE_SOURCE_DIR}/t/unit-tests/")
 add_library(clar-test-lib STATIC ${clar-test_SOURCES})
 
-parse_makefile_for_scripts(unit_test_PROGRAMS "UNIT_TEST_PROGRAMS" "")
+file(GLOB unit_test_PROGRAMS "${CMAKE_SOURCE_DIR}/t/unit-tests/t-*.c")
+list(TRANSFORM unit_test_PROGRAMS REPLACE "${CMAKE_SOURCE_DIR}/" "")
+list(TRANSFORM unit_test_PROGRAMS REPLACE ".c" "")
 foreach(unit_test ${unit_test_PROGRAMS})
 	add_executable("${unit_test}" "${CMAKE_SOURCE_DIR}/t/unit-tests/${unit_test}.c")
 	target_link_libraries("${unit_test}" unit-test-lib clar-test-lib common-main)

base-commit: 866e6a391f466baeeb98bc585845ea638322c04b

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