Verilator current file search path (#3500)

* Simplify verilator linter using ale command format strings
* Verilator Linter: Restructure linter command tests
* Verilator Linter: adds to the handler test the returned filename
* Verilator Linter: add the current file path to the search path
* Verilator Linter: Add the search path to the tests

Co-authored-by: TG <tarik.graba@telecom-paris.fr>

ale_linters/verilog/verilator.vim

@@ -7,16 +7,11 @@ if !exists('g:ale_verilog_verilator_options')
 endif
 
 function! ale_linters#verilog#verilator#GetCommand(buffer) abort
-    let l:filename = ale#util#Tempname() . '_verilator_linted.v'
-
-    " Create a special filename, so we can detect it in the handler.
-    call ale#command#ManageFile(a:buffer, l:filename)
-    let l:lines = getbufline(a:buffer, 1, '$')
-    call ale#util#Writefile(a:buffer, l:lines, l:filename)
-
+    " the path to the current file is systematically added to the search path
     return 'verilator --lint-only -Wall -Wno-DECLFILENAME '
+    \   . '-I%s:h '
     \   . ale#Var(a:buffer, 'verilog_verilator_options') .' '
-    \   . ale#Escape(l:filename)
+    \   . '%t'
 endfunction
 
 function! ale_linters#verilog#verilator#Handle(buffer, lines) abort
@@ -34,7 +29,7 @@ function! ale_linters#verilog#verilator#Handle(buffer, lines) abort
     "
     " to stay compatible with old versions of the tool, the column number is
     " optional in the researched pattern
-    let l:pattern = '^%\(Warning\|Error\)[^:]*:\([^:]\+\):\(\d\+\):\(\d\+\)\?:\? \(.\+\)$'
+    let l:pattern = '^%\(Warning\|Error\)[^:]*:\s*\([^:]\+\):\(\d\+\):\(\d\+\)\?:\? \(.\+\)$'
     let l:output = []
 
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
@@ -42,17 +37,14 @@ function! ale_linters#verilog#verilator#Handle(buffer, lines) abort
         \   'lnum': str2nr(l:match[3]),
         \   'text': l:match[5],
         \   'type': l:match[1] is# 'Error' ? 'E' : 'W',
+        \   'filename': l:match[2],
         \}
 
         if !empty(l:match[4])
             let l:item.col = str2nr(l:match[4])
         endif
 
-        let l:file = l:match[2]
-
-        if l:file =~# '_verilator_linted.v'
         call add(l:output, l:item)
-        endif
     endfor
 
     return l:output

test/command_callback/test_verilator_command_callback.vader

@@ -0,0 +1,14 @@
+Before:
+  call ale#assert#SetUpLinterTest('verilog', 'verilator')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default verilator command should be correct):
+  AssertLinter 'verilator', 'verilator --lint-only -Wall -Wno-DECLFILENAME -I%s:h  %t'
+
+Execute(verilator options should be configurable):
+  " Additional args for the linter
+  let g:ale_verilog_verilator_options = '-sv --default-language "1800-2012"'
+
+  AssertLinter 'verilator', 'verilator --lint-only -Wall -Wno-DECLFILENAME -I%s:h -sv --default-language "1800-2012" %t'

test/handler/test_verilator_handler.vader

@@ -11,17 +11,19 @@ Execute (The verilator handler should parse legacy messages with only line numbe
   \   {
   \     'lnum': 3,
   \     'type': 'E',
-  \     'text': 'syntax error, unexpected IDENTIFIER'
+  \     'text': 'syntax error, unexpected IDENTIFIER',
+  \     'filename': 'foo.v'
   \   },
   \   {
   \     'lnum': 10,
   \     'type': 'W',
-  \     'text': 'Blocking assignments (=) in sequential (flop or latch) block; suggest delayed assignments (<=).'
+  \     'text': 'Blocking assignments (=) in sequential (flop or latch) block; suggest delayed assignments (<=).',
+  \     'filename': 'bar.v'
   \   },
   \ ],
   \ ale_linters#verilog#verilator#Handle(bufnr(''), [
-  \ '%Error: foo_verilator_linted.v:3: syntax error, unexpected IDENTIFIER',
-  \ '%Warning-BLKSEQ: bar_verilator_linted.v:10: Blocking assignments (=) in sequential (flop or latch) block; suggest delayed assignments (<=).',
+  \ '%Error: foo.v:3: syntax error, unexpected IDENTIFIER',
+  \ '%Warning-BLKSEQ: bar.v:10: Blocking assignments (=) in sequential (flop or latch) block; suggest delayed assignments (<=).',
   \ ])
 
 
@@ -32,17 +34,19 @@ Execute (The verilator handler should parse new format messages with line and co
   \     'lnum': 3,
   \     'col' : 1,
   \     'type': 'E',
-  \     'text': 'syntax error, unexpected endmodule, expecting ;'
+  \     'text': 'syntax error, unexpected endmodule, expecting ;',
+  \     'filename': 'bar.v'
   \   },
   \   {
   \     'lnum': 4,
   \     'col' : 6,
   \     'type': 'W',
-  \     'text': 'Signal is not used: r'
+  \     'text': 'Signal is not used: r',
+  \     'filename': 'foo.v'
   \   },
   \ ],
   \ ale_linters#verilog#verilator#Handle(bufnr(''), [
-  \ '%Error: bar_verilator_linted.v:3:1: syntax error, unexpected endmodule, expecting ;',
-  \ '%Warning-UNUSED: foo_verilator_linted.v:4:6: Signal is not used: r',
+  \ '%Error: bar.v:3:1: syntax error, unexpected endmodule, expecting ;',
+  \ '%Warning-UNUSED: foo.v:4:6: Signal is not used: r',
   \ ])
 

test/test_verilog_verilator_options.vader

@@ -1,24 +0,0 @@
-Before:
-  Save g:ale_verilog_verilator_options
-  let g:ale_verilog_verilator_options = ''
-
-After:
-  Restore
-  call ale#linter#Reset()
-
-Execute(Set Verilog Verilator linter additional options to `-sv --default-language "1800-2012"`):
-  runtime! ale_linters/verilog/verilator.vim
-
-  " Additional args for the linter
-  let g:ale_verilog_verilator_options = '-sv --default-language "1800-2012"'
-
-  call ale#Queue(0)
-
-  let g:run_cmd = ale_linters#verilog#verilator#GetCommand(bufnr(''))
-  let g:matched = match(g:run_cmd, '\s' . g:ale_verilog_verilator_options . '\s')
-
-  " match returns -1 if not found
-  AssertNotEqual
-  \   g:matched ,
-  \   -1 ,
-  \  'Additionnal arguments not found in the run command'