Support csc, update mcsc (#2586)

* Added a new csc linter for C# code.
* More output is now handled for mcsc.

1 files changed, 95 insertions, 0 deletions

diff --git a/ale_linters/cs/csc.vim b/ale_linters/cs/csc.vim
new file mode 100644
index 00000000..308abc77
--- /dev/null
+++ b/ale_linters/cs/csc.vim
@@ -0,0 +1,95 @@
+call ale#Set('cs_csc_options', '')
+call ale#Set('cs_csc_source', '')
+call ale#Set('cs_csc_assembly_path', [])
+call ale#Set('cs_csc_assemblies', [])
+
+function! s:GetWorkingDirectory(buffer) abort
+    let l:working_directory = ale#Var(a:buffer, 'cs_csc_source')
+
+    if !empty(l:working_directory)
+        return l:working_directory
+    endif
+
+    return expand('#' . a:buffer . ':p:h')
+endfunction
+
+function! ale_linters#cs#csc#GetCommand(buffer) abort
+    " Pass assembly paths via the -lib: parameter.
+    let l:path_list = ale#Var(a:buffer, 'cs_csc_assembly_path')
+
+    let l:lib_option = !empty(l:path_list)
+    \   ? '/lib:' . join(map(copy(l:path_list), 'ale#Escape(v:val)'), ',')
+    \   : ''
+
+    " Pass paths to DLL files via the -r: parameter.
+    let l:assembly_list = ale#Var(a:buffer, 'cs_csc_assemblies')
+
+    let l:r_option = !empty(l:assembly_list)
+    \   ? '/r:' . join(map(copy(l:assembly_list), 'ale#Escape(v:val)'), ',')
+    \   : ''
+
+    " register temporary module target file with ale
+    " register temporary module target file with ALE.
+    let l:out = ale#command#CreateFile(a:buffer)
+
+    " The code is compiled as a module and the output is redirected to a
+    " temporary file.
+    return ale#path#CdString(s:GetWorkingDirectory(a:buffer))
+    \    . 'csc /unsafe'
+    \    . ale#Pad(ale#Var(a:buffer, 'cs_csc_options'))
+    \    . ale#Pad(l:lib_option)
+    \    . ale#Pad(l:r_option)
+    \    . ' /out:' . l:out
+    \    . ' /t:module'
+    \    . ' /recurse:' . ale#Escape('*.cs')
+endfunction
+
+function! ale_linters#cs#csc#Handle(buffer, lines) abort
+    " Look for lines like the following.
+    "
+    " Tests.cs(12,29): error CSXXXX: ; expected
+    "
+    " NOTE: pattern also captures file name as linter compiles all
+    " files within the source tree rooted at the specified source
+    " path and not just the file loaded in the buffer
+    let l:patterns = [
+    \    '^\v(.+\.cs)\((\d+),(\d+)\)\:\s+([^ ]+)\s+([cC][sS][^ ]+):\s(.+)$',
+    \    '^\v([^ ]+)\s+([Cc][sS][^ ]+):\s+(.+)$',
+    \]
+    let l:output = []
+
+    let l:dir = s:GetWorkingDirectory(a:buffer)
+
+    for l:match in ale#util#GetMatches(a:lines, l:patterns)
+        if len(l:match) > 6 && strlen(l:match[5]) > 2 && l:match[5][:1] is? 'CS'
+            call add(l:output, {
+            \   'filename': ale#path#GetAbsPath(l:dir, l:match[1]),
+            \   'lnum': l:match[2] + 0,
+            \   'col': l:match[3] + 0,
+            \   'type': l:match[4] is# 'error' ? 'E' : 'W',
+            \   'code': l:match[5],
+            \   'text': l:match[6] ,
+            \})
+        elseif strlen(l:match[2]) > 2 && l:match[2][:1] is? 'CS'
+            call add(l:output, {
+            \   'filename':'<csc>',
+            \   'lnum': -1,
+            \   'col': -1,
+            \   'type': l:match[1] is# 'error' ? 'E' : 'W',
+            \   'code': l:match[2],
+            \   'text': l:match[3],
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('cs',{
+\   'name': 'csc',
+\   'output_stream': 'stdout',
+\   'executable': 'csc',
+\   'command': function('ale_linters#cs#csc#GetCommand'),
+\   'callback': 'ale_linters#cs#csc#Handle',
+\   'lint_file': 1
+\})