[PATCH] cmake: fix build of `t-oidtree`

[PATCH] cmake: fix build of `t-oidtree`

[Johannes Schindelin via GitGitGadget]

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

When the `oidtree` test helper was turned into a unit test, a new
`lib-oid` source file was added as dependency. This was only done in the
Makefile so far, but also needs to be done in the CMake definition.

This is a companion of ed548408723d (t/: migrate helper/test-oidtree.c
to unit-tests/t-oidtree.c, 2024-06-08).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
    cmake: fix build of t-oidtree
    
    This is based on the gt/unit-test-oidtree branch.
    
    /cc "Ghanshyam Thakkar" shyamthakkar001@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1761%2Fdscho%2Fcmake-vs-t-oidtree-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1761/dscho/cmake-vs-t-oidtree-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1761

 contrib/buildsystems/CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 2f9c33585c6..832f46b316b 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -976,11 +976,12 @@ list(TRANSFORM test-reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
 
 #unit-tests
 add_library(unit-test-lib OBJECT ${CMAKE_SOURCE_DIR}/t/unit-tests/test-lib.c)
+add_library(unit-test-lib-oid OBJECT ${CMAKE_SOURCE_DIR}/t/unit-tests/lib-oid.c)
 
 parse_makefile_for_scripts(unit_test_PROGRAMS "UNIT_TEST_PROGRAMS" "")
 foreach(unit_test ${unit_test_PROGRAMS})
 	add_executable("${unit_test}" "${CMAKE_SOURCE_DIR}/t/unit-tests/${unit_test}.c")
-	target_link_libraries("${unit_test}" unit-test-lib common-main)
+	target_link_libraries("${unit_test}" unit-test-lib unit-test-lib-oid common-main)
 	set_target_properties("${unit_test}"
 		PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/t/unit-tests/bin)
 	if(MSVC)

base-commit: ed548408723d6e969160279398cc47f88f5700bc
-- 
gitgitgadget

Re: [PATCH] cmake: fix build of `t-oidtree`

[Johannes Schindelin]

Hi,

now Cc:ing Ghanshyam correctly. Sorry for that.

On Fri, 12 Jul 2024, Johannes Schindelin via GitGitGadget wrote:

> From: Johannes Schindelin <johannes.schindelin@gmx.de>
>
> When the `oidtree` test helper was turned into a unit test, a new
> `lib-oid` source file was added as dependency. This was only done in the
> Makefile so far, but also needs to be done in the CMake definition.
>
> This is a companion of ed548408723d (t/: migrate helper/test-oidtree.c
> to unit-tests/t-oidtree.c, 2024-06-08).
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> ---
>     cmake: fix build of t-oidtree
>
>     This is based on the gt/unit-test-oidtree branch.
>
>     /cc "Ghanshyam Thakkar" shyamthakkar001@gmail.com
>
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1761%2Fdscho%2Fcmake-vs-t-oidtree-v1
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1761/dscho/cmake-vs-t-oidtree-v1
> Pull-Request: https://github.com/gitgitgadget/git/pull/1761
>
>  contrib/buildsystems/CMakeLists.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
> index 2f9c33585c6..832f46b316b 100644
> --- a/contrib/buildsystems/CMakeLists.txt
> +++ b/contrib/buildsystems/CMakeLists.txt
> @@ -976,11 +976,12 @@ list(TRANSFORM test-reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
>
>  #unit-tests
>  add_library(unit-test-lib OBJECT ${CMAKE_SOURCE_DIR}/t/unit-tests/test-lib.c)
> +add_library(unit-test-lib-oid OBJECT ${CMAKE_SOURCE_DIR}/t/unit-tests/lib-oid.c)
>
>  parse_makefile_for_scripts(unit_test_PROGRAMS "UNIT_TEST_PROGRAMS" "")
>  foreach(unit_test ${unit_test_PROGRAMS})
>  	add_executable("${unit_test}" "${CMAKE_SOURCE_DIR}/t/unit-tests/${unit_test}.c")
> -	target_link_libraries("${unit_test}" unit-test-lib common-main)
> +	target_link_libraries("${unit_test}" unit-test-lib unit-test-lib-oid common-main)
>  	set_target_properties("${unit_test}"
>  		PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/t/unit-tests/bin)
>  	if(MSVC)
>
> base-commit: ed548408723d6e969160279398cc47f88f5700bc
> --
> gitgitgadget
>

Re: [PATCH] cmake: fix build of `t-oidtree`

[Junio C Hamano]

"Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
writes:

> From: Johannes Schindelin <johannes.schindelin@gmx.de>
>
> When the `oidtree` test helper was turned into a unit test, a new
> `lib-oid` source file was added as dependency. This was only done in the
> Makefile so far, but also needs to be done in the CMake definition.
>
> This is a companion of ed548408723d (t/: migrate helper/test-oidtree.c
> to unit-tests/t-oidtree.c, 2024-06-08).
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> ---
>     cmake: fix build of t-oidtree
>     
>     This is based on the gt/unit-test-oidtree branch.
>     
>     /cc "Ghanshyam Thakkar" shyamthakkar001@gmail.com

The base topic has been merged last month during this cycle, so the
fix must be merged down to the 'master' before the release.  Will
queue.

Thanks.

Re: [PATCH] cmake: fix build of `t-oidtree`

[Ghanshyam Thakkar]

Junio C Hamano <gitster@pobox.com> wrote:
> "Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
> writes:
>
> > From: Johannes Schindelin <johannes.schindelin@gmx.de>
> >
> > When the `oidtree` test helper was turned into a unit test, a new
> > `lib-oid` source file was added as dependency. This was only done in the
> > Makefile so far, but also needs to be done in the CMake definition.
> >
> > This is a companion of ed548408723d (t/: migrate helper/test-oidtree.c
> > to unit-tests/t-oidtree.c, 2024-06-08).
> >
> > Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> > ---
> >     cmake: fix build of t-oidtree
> >     
> >     This is based on the gt/unit-test-oidtree branch.
> >     
> >     /cc "Ghanshyam Thakkar" shyamthakkar001@gmail.com
>
> The base topic has been merged last month during this cycle, so the
> fix must be merged down to the 'master' before the release. Will
> queue.

Changes look correct to me. I was not aware of the existance of
CMakeLists in the tree cause there was no mention of CMake support
in the docs about building git from source, but it was my mistake
for grepping for 'test-lib' in just the Makefile instead of project
wide. Apologies for the negligance and thanks for the patch.

Re: [PATCH] cmake: fix build of `t-oidtree`

[Junio C Hamano]

"Ghanshyam Thakkar" <shyamthakkar001@gmail.com> writes:

> Changes look correct to me. I was not aware of the existance of
> CMakeLists in the tree cause there was no mention of CMake support
> in the docs about building git from source, but it was my mistake
> for grepping for 'test-lib' in just the Makefile instead of project
> wide. Apologies for the negligance and thanks for the patch.

No need to apologize.  Nobody caught during the review, so it is not
even your fault ;-) 

And the CMakeLists is not even meant to work with anything but for
Windows, IIRC (even though it might work by accident).

Re: [PATCH] cmake: fix build of `t-oidtree`

[Johannes Schindelin]

Hi Ghanshyam,

On Sat, 13 Jul 2024, Ghanshyam Thakkar wrote:

> Junio C Hamano <gitster@pobox.com> wrote:
> > "Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
> > writes:
> >
> > > From: Johannes Schindelin <johannes.schindelin@gmx.de>
> > >
> > > When the `oidtree` test helper was turned into a unit test, a new
> > > `lib-oid` source file was added as dependency. This was only done in the
> > > Makefile so far, but also needs to be done in the CMake definition.
> > >
> > > This is a companion of ed548408723d (t/: migrate helper/test-oidtree.c
> > > to unit-tests/t-oidtree.c, 2024-06-08).
> > >
> > > Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> > > ---
> > >     cmake: fix build of t-oidtree
> > >
> > >     This is based on the gt/unit-test-oidtree branch.
> > >
> > >     /cc "Ghanshyam Thakkar" shyamthakkar001@gmail.com
> >
> > The base topic has been merged last month during this cycle, so the
> > fix must be merged down to the 'master' before the release. Will
> > queue.
>
> Changes look correct to me.

Thank you for confirming.

For what it's worth, it was this confirmation by the domain expert (i.e.
you) that I was looking for when I Cc:ed you, not to spread blame.

The CMakeLists.txt file exists primarily to support building Git in Visual
Studio, and I removed that part from CI builds specifically so that
contributors on the Git mailing list need not worry about that support.

Ciao,
Johannes