flycheck-clang-include-path not being set with compile_commands.json

[abbioro]

I generate a compile_commands.json for my project with bear make and one of the arguments is -Isrc to include some source files. Unfortunately cmake-ide fails to set flycheck-clang-include-path properly. I think this might be linked with #111

I took a look at the code and at least cmake-ide--set-flags-for-file has the correct -I argument in hdr-flags, though it is discarded at the end of the function if I'm opening a source file.

[abbioro]

Here's a demo project, make sure to edit .dir-locals.el.

header_fail.zip

[juergenhoetzel]

Had a similar issue. Most likely because bear uses relative file-names but cmake-ide expects absolute paths.

[atilaneves]

@juergenhoetzel You're probably right. Since cmake-ide was written with CMake in mind, and I knew CMake only uses absolute paths, it assumes that's the case.

[juergenhoetzel]

@juergenhoetzel You're probably right. Since cmake-ide was written with CMake in mind, and I knew CMake only uses absolute paths, it assumes that's the case.

Seems clangs format specification doesn't enforce absolute paths. Even this example in the official docs uses a relative path: Compilation Database Format.

I came up with this solution for bear (which actually switched from rel. to abs. paths):

jq '[.[] | .file = .directory  + "/" + .file]' compile_commands.json > compile_commands.json.$$ && mv compile_commands.json.$$ compile_commands.json