cmake AddHtmlTarget: use config_file() for copying files #354
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Rather than making custom commands to simply copy files in place we can depend on cmake' configure_file() command to do the right thing for us. That is configure_file() will track any file changes for us and automatically copies the updated files to where we told it initially. This change requires an explicit rerun of cmake!
@CWehli That's because it's independent of the target: "If the input file is modified the build system will re-run CMake to re-configure the file and generate the build system again. The generated file is modified and its timestamp updated on subsequent cmake runs only if its content is changed.". Buildsystem (meaning ninja here) targets don't apply to cmake. |
@gjanssens had a lot of comments on #234, and @usamimikamen-sk ultimately abandoned the PR and deleted their branches. Can you be a bit more specific about what is the goal of this PR? |
I took up some ideas from @usamimikamen-sk's #234 and, based on @gjanssens' comments, tried to make copying files as a “custom_command”.
I start the build with the command
cmake -G Ninja -S ../src -D CMAKE_INSTALL_PREFIX=..install -D WITH_HTML_INSTALL=ON, which copies all files to the build directory for each languages.However, I could not figure out how to control the dependency between build and the copying of the files during the installation of a single component, with e.g.
ninja de-html && ninja install de-html.All files are always copied, even for the languages that are not activated.