Just like "git submodule init", this copies information about the
submodule into ".git/config". You can use the accessor functions
above to alter the in-memory git_submodule object and control what
is written to the config, overriding what is in .gitmodules.
@param submodule The submodule to write into the superproject config
@param overwrite By default, existing entries will not be overwritten,
but setting this to true forces them to be updated.
@return 0 on success, <0 on failure.
Copy submodule info into ".git/config" file.
Just like "git submodule init", this copies information about the submodule into ".git/config". You can use the accessor functions above to alter the in-memory git_submodule object and control what is written to the config, overriding what is in .gitmodules.
@param submodule The submodule to write into the superproject config @param overwrite By default, existing entries will not be overwritten, but setting this to true forces them to be updated. @return 0 on success, <0 on failure.