Add cuda nvcc linter (#874)

* add cuda nvcc linter

6 files changed, 148 insertions, 0 deletions

diff --git a/README.md b/README.md
index ee5c156e..10a5433f 100644
--- a/README.md
+++ b/README.md
@@ -75,6 +75,7 @@ formatting.
 | Bourne Shell | shell [-n flag](http://linux.die.net/man/1/sh), [shellcheck](https://www.shellcheck.net/) |
 | C | [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint), [gcc](https://gcc.gnu.org/), [clang](http://clang.llvm.org/), [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
 | C++ (filetype cpp) | [clang](http://clang.llvm.org/), [clangcheck](http://clang.llvm.org/docs/ClangCheck.html) !!, [clangtidy](http://clang.llvm.org/extra/clang-tidy/) !!, [cppcheck](http://cppcheck.sourceforge.net), [cpplint](https://github.com/google/styleguide/tree/gh-pages/cpplint) !!, [gcc](https://gcc.gnu.org/), [clang-format](https://clang.llvm.org/docs/ClangFormat.html)|
+| CUDA | [nvcc](http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html) |
 | C# | [mcs](http://www.mono-project.com/docs/about-mono/languages/csharp/) |
 | Chef | [foodcritic](http://www.foodcritic.io/) |
 | CMake | [cmakelint](https://github.com/richq/cmake-lint) |
diff --git a/ale_linters/cuda/nvcc.vim b/ale_linters/cuda/nvcc.vim
new file mode 100644
index 00000000..7aaa5cc3
--- /dev/null
+++ b/ale_linters/cuda/nvcc.vim
@@ -0,0 +1,56 @@
+" Author: blahgeek <i@blahgeek.com>
+" Description: NVCC linter for cuda files
+
+call ale#Set('cuda_nvcc_executable', 'nvcc')
+call ale#Set('cuda_nvcc_options', '-std=c++11')
+
+function! ale_linters#cuda#nvcc#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'cuda_nvcc_executable')
+endfunction
+
+function! ale_linters#cuda#nvcc#GetCommand(buffer) abort
+    " Unused: use ale#util#nul_file
+    " let l:output_file = tempname() . '.ii'
+    " call ale#engine#ManageFile(a:buffer, l:output_file)
+
+    return ale#Escape(ale_linters#cuda#nvcc#GetExecutable(a:buffer))
+    \   . ' -cuda '
+    \   . ale#c#IncludeOptions(ale#c#FindLocalHeaderPaths(a:buffer))
+    \   . ale#Var(a:buffer, 'cuda_nvcc_options') . ' %s'
+    \   . ' -o ' . g:ale#util#nul_file
+endfunction
+
+function! ale_linters#cuda#nvcc#HandleNVCCFormat(buffer, lines) abort
+    " Look for lines like the following.
+    "
+    " test.cu(8): error: argument of type "void *" is incompatible with parameter of type "int *"
+    let l:pattern = '\v^([^:\(\)]+):?\(?(\d+)\)?:(\d+)?:?\s*\w*\s*(error|warning): (.+)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+
+        let l:item = {
+        \   'lnum': str2nr(l:match[2]),
+        \   'type': l:match[4] =~# 'error' ? 'E' : 'W',
+        \   'text': l:match[5],
+        \   'filename': fnamemodify(l:match[1], ':p'),
+        \}
+
+        if !empty(l:match[3])
+            let l:item.col = str2nr(l:match[3])
+        endif
+
+        call add(l:output, l:item)
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cuda', {
+\   'name': 'nvcc',
+\   'output_stream': 'stderr',
+\   'executable_callback': 'ale_linters#cuda#nvcc#GetExecutable',
+\   'command_callback': 'ale_linters#cuda#nvcc#GetCommand',
+\   'callback': 'ale_linters#cuda#nvcc#HandleNVCCFormat',
+\   'lint_file': 1,
+\})
diff --git a/doc/ale-cuda.txt b/doc/ale-cuda.txt
new file mode 100644
index 00000000..8cba66f0
--- /dev/null
+++ b/doc/ale-cuda.txt
@@ -0,0 +1,25 @@
+===============================================================================
+ALE CUDA Integration                                         *ale-cuda-options*
+
+
+===============================================================================
+NVCC                                                            *ale-cuda-nvcc*
+
+g:ale_cuda_nvcc_executable                         *g:ale_cuda_nvcc_executable*
+                                                   *b:ale_cuda_nvcc_executable*
+  Type: |String|
+  Default: `'nvcc'`
+
+  This variable can be changed to use a different executable for nvcc.
+  Currently only nvcc 8.0 is supported.
+
+
+g:ale_cuda_nvcc_options                               *g:ale_cuda_nvcc_options*
+                                                      *b:ale_cuda_nvcc_options*
+  Type: |String|
+  Default: `'-std=c++11'`
+
+  This variable can be changed to modify flags given to nvcc.
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
diff --git a/doc/ale.txt b/doc/ale.txt
index 3c02af37..44d9e0ff 100644
--- a/doc/ale.txt
+++ b/doc/ale.txt
@@ -32,6 +32,8 @@ CONTENTS                                                         *ale-contents*
       cpplint.............................|ale-cpp-cpplint|
       gcc.................................|ale-cpp-gcc|
       clang-format........................|ale-cpp-clangformat|
+    cuda..................................|ale-cuda-options|
+      nvcc................................|ale-cuda-nvcc|
     css...................................|ale-css-options|
       prettier............................|ale-css-prettier|
       stylelint...........................|ale-css-stylelint|
@@ -201,6 +203,7 @@ Notes:
 * Bourne Shell: `shell` (-n flag), `shellcheck`
 * C: `cppcheck`, `cpplint`!!, `gcc`, `clang`, `clangtidy`!!, `clang-format`
 * C++ (filetype cpp): `clang`, `clangcheck`!!, `clangtidy`!!, `cppcheck`, `cpplint`!!, `gcc`, `clang-format`
+* CUDA: `nvcc`!!
 * C#: `mcs`
 * Chef: `foodcritic`
 * CMake: `cmakelint`
diff --git a/test/command_callback/test_cuda_nvcc_command_callbacks.vader b/test/command_callback/test_cuda_nvcc_command_callbacks.vader
new file mode 100644
index 00000000..88123e5d
--- /dev/null
+++ b/test/command_callback/test_cuda_nvcc_command_callbacks.vader
@@ -0,0 +1,34 @@
+Before:
+  Save g:ale_cuda_nvcc_executable
+  Save g:ale_cuda_nvcc_options
+
+  unlet! g:ale_cuda_nvcc_executable
+  unlet! b:ale_cuda_nvcc_executable
+  unlet! g:ale_cuda_nvcc_options
+  unlet! b:ale_cuda_nvcc_options
+
+  runtime ale_linters/cuda/nvcc.vim
+
+After:
+  Restore
+  unlet! b:ale_cuda_nvcc_executable
+  unlet! b:ale_cuda_nvcc_options
+  call ale#linter#Reset()
+
+Execute(The executable should be configurable):
+  AssertEqual 'nvcc', ale_linters#cuda#nvcc#GetExecutable(bufnr(''))
+
+  let b:ale_cuda_nvcc_executable = 'foobar'
+
+  AssertEqual 'foobar', ale_linters#cuda#nvcc#GetExecutable(bufnr(''))
+
+Execute(The executable should be used in the command):
+  AssertEqual
+  \ ale#Escape('nvcc') . ' -cuda -std=c++11 %s -o /dev/null',
+  \ ale_linters#cuda#nvcc#GetCommand(bufnr(''))
+
+  let b:ale_cuda_nvcc_executable = 'foobar'
+
+  AssertEqual
+  \ ale#Escape('foobar') . ' -cuda -std=c++11 %s -o /dev/null',
+  \ ale_linters#cuda#nvcc#GetCommand(bufnr(''))
diff --git a/test/handler/test_cuda_nvcc_handler.vader b/test/handler/test_cuda_nvcc_handler.vader
new file mode 100644
index 00000000..03297ab7
--- /dev/null
+++ b/test/handler/test_cuda_nvcc_handler.vader
@@ -0,0 +1,29 @@
+Execute(The cuda nvcc handler should parse errors from multiple files for NVCC 8.0):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 1,
+  \     'type': 'E',
+  \     'text': 'this declaration has no storage class or type specifier',
+  \     'filename': '/tmp/cudatest/test.cu',
+  \   },
+  \   {
+  \     'lnum': 2,
+  \     'type': 'E',
+  \     'text': 'attribute "global" does not apply here',
+  \     'filename': '/tmp/cudatest/common.h',
+  \   },
+  \   {
+  \     'lnum': 2,
+  \     'type': 'E',
+  \     'text': 'expected a ";"',
+  \     'filename': '/tmp/cudatest/common.h',
+  \   },
+  \ ],
+  \ ale_linters#cuda#nvcc#HandleNVCCFormat(0, [
+  \   '/tmp/cudatest/test.cu(1): error: this declaration has no storage class or type specifier',
+  \   '/tmp/cudatest/common.h(2): error: attribute "global" does not apply here',
+  \   '/tmp/cudatest/common.h(2): error: expected a ";"',
+  \   'At end of source: warning: parsing restarts here after previous syntax error',
+  \   '3 errors detected in the compilation of "/tmp/tmpxft_00003a9f_00000000-7_test.cpp1.ii".',
+  \ ])