[PATCH 5/6] cmake: copy over git-p4.py for t983[56] perforce test

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Since [1] two git-p4 tests have relied on there being a "git-p4.py" in
the build directory, but the cmake recipe was not updated to account
for this. Let's copy the "git-p4.py" over.

We could also change the test to e.g. grab the built "git-p4" and
alter its shebang, which would be friendly to GIT_TEST_INSTALLED, but
let's just do the bare minimum here to get cmake+ctest working without
altering the test itself.

The reason this hasn't been caught by "vs-build" and "vs-test" is
because those tests added in [2] invoke "cmake" with
"-DPYTHON_TESTS=OFF", and therefore we'd skip this part of the git-p4
tests before getting past the "do we have python?" check. Even if we
got past that the Windows CI wouldn't have a "p4" or "p4d" binary
installed, so we'd skip the tests anyway.

In a subsequent commit we'll run "cmake" and "ctest" in CI with
"ubuntu-latest", so we'll need this "git-p4.py" file.

1. f7b5ff607fa (git-p4: improve encoding handling to support
   inconsistent encodings, 2022-04-30)
2. 4c2c38e800f (ci: modification of main.yml to use cmake for vs-build
   job, 2020-06-26)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 contrib/buildsystems/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 560a15ed35a..29b73ecbbbc 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -894,6 +894,7 @@ endforeach()
 file(STRINGS ${CMAKE_SOURCE_DIR}/git-p4.py content NEWLINE_CONSUME)
 string(REPLACE "#!/usr/bin/env python" "#!/usr/bin/python" content "${content}")
 file(WRITE ${CMAKE_BINARY_DIR}/git-p4 ${content})
+file(COPY ${CMAKE_SOURCE_DIR}/git-p4.py DESTINATION ${CMAKE_BINARY_DIR}/)
 
 #perl modules
 file(GLOB_RECURSE perl_modules "${CMAKE_SOURCE_DIR}/perl/*.pm")
-- 
2.39.0.1071.g97ce8966538