ale/autoload/ale/handlers/c.vim

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" Author: w0rp <devw0rp@gmail.com>
" Desciption: Functions for integrating with C and C++ compilers.
function! ale#handlers#c#FindProjectRoot(buffer) abort
for l:project_filename in ['configure', 'Makefile', 'CMakeLists.txt']
let l:full_path = ale#path#FindNearestFile(a:buffer, l:project_filename)
if !empty(l:full_path)
return fnamemodify(l:full_path, ':h')
endif
endfor
return ''
endfunction
" Given a buffer number, search for a project root, and output a List
" of directories to include based on some heuristics.
"
" For projects with headers in the project root, the project root will
" be returned.
"
" For projects with an 'include' directory, that directory will be returned.
function! ale#handlers#c#FindLocalHeaderPaths(buffer) abort
let l:project_root = ale#handlers#c#FindProjectRoot(a:buffer)
if empty(l:project_root)
return []
endif
" See if we can find .h files directory in the project root.
" If we can, that's our include directory.
if !empty(globpath(l:project_root, '*.h', 0))
return [l:project_root]
endif
" Look for .hpp files too.
if !empty(globpath(l:project_root, '*.hpp', 0))
return [l:project_root]
endif
" If we find an 'include' directory in the project root, then use that.
if isdirectory(l:project_root . '/include')
return [simplify(l:project_root . '/include')]
endif
return []
endfunction
" Given a List of include paths, create a string containing the -I include
" options for those paths, with the paths escaped for use in the shell.
function! ale#handlers#c#IncludeOptions(include_paths) abort
let l:option_list = []
for l:path in a:include_paths
call add(l:option_list, '-I' . ale#Escape(l:path))
endfor
if empty(l:option_list)
return ''
endif
return ' ' . join(l:option_list) . ' '
endfunction