Re: [PATCH] cmake: determine list of extra built-ins dynamically

[Junio C Hamano <gitster@pobox.com>]

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

> From: Johannes Schindelin <johannes.schindelin@gmx.de>
>
> In 0a21d0e08902 (Makefile: mark git-maintenance as a builtin,
> 2020-12-01), we marked git-maintenance as a builtin in the Makefile, but
> forgot to do the same in `CMakeLists.txt`.
>
> Rather than always play catch-up and adjust `git_builtin_extra`
> manually, use the `BUILT_INS` definitions in the Makefile as
> authoritative source and generate `git_builtin_extra` dynamically.
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
> ---
>     ci: fix the vs-build job after adding git maintenance
>     
>     Together with https://github.com/gitgitgadget/git/pull/805, this should
>     fix the vs-build job in the CI build of seen.

I suspect that the breakage 805 addresses affects even 'master'; is
the breakage this patch fixes limited to 'seen', or affect everybody?

> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-807%2Fdscho%2Fcmake-and-extra-builtins-v1
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-807/dscho/cmake-and-extra-builtins-v1
> Pull-Request: https://github.com/gitgitgadget/git/pull/807
>
>  contrib/buildsystems/CMakeLists.txt | 15 +++++++++++----
>  1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
> index df539a44fa..c151dd7257 100644
> --- a/contrib/buildsystems/CMakeLists.txt
> +++ b/contrib/buildsystems/CMakeLists.txt
> @@ -114,6 +114,16 @@ macro(parse_makefile_for_scripts list_var regex lang)
>  	endif()
>  endmacro()
>  
> +macro(parse_makefile_for_executables list_var regex)
> +	file(STRINGS ${CMAKE_SOURCE_DIR}/Makefile ${list_var} REGEX "^${regex} \\+= git-(.*)")
> +	string(REPLACE "${regex} +=" "" ${list_var} ${${list_var}})
> +	string(STRIP ${${list_var}} ${list_var}) #remove trailing/leading whitespaces
> +	string(REPLACE "git-" "" ${list_var} ${${list_var}}) #strip `git-` prefix
> +	string(REPLACE "\$X" ";" ${list_var} ${${list_var}}) #strip $X, ; is for converting the string into a list
> +	list(TRANSFORM ${list_var} STRIP) #remove trailing/leading whitespaces for each element in list
> +	list(REMOVE_ITEM ${list_var} "") #remove empty list elements
> +endmacro()
> +
>  include(CheckTypeSize)
>  include(CheckCSourceRuns)
>  include(CheckCSourceCompiles)
> @@ -673,10 +683,7 @@ if(CURL_FOUND)
>  	endif()
>  endif()
>  
> -set(git_builtin_extra
> -	cherry cherry-pick format-patch fsck-objects
> -	init merge-subtree restore show
> -	stage status switch whatchanged)
> +parse_makefile_for_executables(git_builtin_extra "BUILT_INS")
>  
>  #Creating hardlinks
>  foreach(s ${git_SOURCES} ${git_builtin_extra})
>
> base-commit: 898f80736c75878acc02dc55672317fcc0e0a5a6