Add openscad and sca2d support

ale_linters/openscad/sca2d.vim

@@ -0,0 +1,24 @@
+" Description: SCA2D linter for OpenSCAD files
+
+call ale#Set('openscad_sca2d_executable', 'sca2d')
+call ale#Set('openscad_sca2d_options', '')
+
+function! ale_linters#openscad#sca2d#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'openscad_sca2d_executable')
+endfunction
+
+function! ale_linters#openscad#sca2d#GetCommand(buffer) abort
+    let l:executable = ale_linters#openscad#sca2d#GetExecutable(a:buffer)
+    let l:options = ale#Var(a:buffer, 'openscad_sca2d_options')
+
+    return ale#Escape(l:executable) . ale#Pad(l:options) . ' %s'
+endfunction
+
+call ale#linter#Define('openscad', {
+\ 'name': 'SCA2D',
+\ 'aliases': ['sca2d'],
+\ 'executable': function('ale_linters#openscad#sca2d#GetExecutable'),
+\ 'command': function('ale_linters#openscad#sca2d#GetCommand'),
+\ 'callback': 'ale#handlers#openscad#SCA2D_callback',
+\ 'lint_file': 1,
+\ })

autoload/ale/handlers/openscad.vim

@@ -0,0 +1,73 @@
+scriptencoding utf-8LE
+" Description: This file defines a handler function for linting OpenSCAD files
+" with SCA2D
+
+function! ale#handlers#openscad#SCA2D_callback(buffer, lines) abort
+    " Example output::
+    " foo.scad:3:1: W2001: Variable `unused` overwritten within scope.
+    " foo.scad:1:1: F0001: Cannot read file due to syntax error:
+    "    - No terminal matches '}' in the current parser context, at line 1 col 36
+    let l:filename_re = '^\([^:]*\):'
+    let l:linenum_re = '\([0-9]*\):'
+    let l:colnum_re = '\([0-9]*\):'
+    let l:err_id = '\([IWEFU][0-9]\+\):'
+    let l:err_msg = '\(.*\)'
+    let l:pattern =  filename_re .
+    \ linenum_re .
+    \ colnum_re .
+    \ ' ' .
+    \ err_id .
+    \ ' ' .
+    \ err_msg
+
+    let l:result = []
+    let l:idx = 0
+
+    for l:line in a:lines
+        let l:matches = matchlist(line, pattern)
+
+        if len(matches) > 0
+            " option: Info, Warning, Error, Fatal, Unknown
+            if index(['I', 'W'], matches[4][0]) >= 0
+                let l:type = 'W'
+            else
+                let l:type = 'E'
+            endif
+
+            let l:lnum = matches[2]
+            let l:col = matches[3]
+            let l:text = matches[5]
+
+            " Better locations for some syntax errors
+            if matches[4][0] is# 'F'
+                let l:syntax_error_re = '^\(.*\), at line \([0-9]\+\) col \([0-9]\+\)$'
+                let l:next_line = a:lines[idx+1]
+                let l:syn_err_matches = matchlist(l:next_line, l:syntax_error_re)
+
+                if len(syn_err_matches) > 0
+                    let l:text = l:text . l:syn_err_matches[1]
+                    let l:lnum = l:syn_err_matches[2]
+                    let l:col = l:syn_err_matches[3]
+                else
+                    let l:text = l:next_line
+                endif
+            endif
+
+            let l:element = {
+            \ 'lnum': str2nr(l:lnum),
+            \ 'col': str2nr(l:col),
+            \ 'text': l:text,
+            \ 'detail': l:matches[4] . ': ' . l:text,
+            \ 'filename': fnamemodify(matches[1], ':p'),
+            \ 'type': l:type
+            \ }
+
+            call add(l:result, l:element)
+        endif
+
+        let l:idx += 1
+    endfor
+
+    return result
+
+endfun

doc/ale-openscad.txt

@@ -0,0 +1,25 @@
+===============================================================================
+ALE OpenSCAD Integration                                 *ale-openscad-options*
+
+
+===============================================================================
+sca2d                                                      *ale-openscad-sca2d*
+
+g:ale_openscad_sca2d_executable               *g:ale_openscad_sca2d_executable*
+                                              *b:ale_openscad_sca2d_executable*
+  Type: |String|
+  Default: `'sca2d'`
+
+  See |ale-integrations-local-executables|
+
+
+g:ale_openscad_sca2d_options                     *g:ale_openscad_sca2d_options*
+                                                 *b:ale_openscad_sca2d_options*
+  Type: |String|
+  Default: `''`
+
+  This variable can be set to pass options to sca2d.
+
+
+===============================================================================
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:

doc/ale-supported-languages-and-tools.txt

@@ -396,6 +396,8 @@ Notes:
   * `ibm_validator`
   * `prettier`
   * `yamllint`
+* OpenSCAD
+  * `SCA2D`
 * Packer
   * `packer-fmt-fixer`
 * Pascal

doc/ale.txt

@@ -3051,6 +3051,8 @@ documented in additional help files.
     ibm_validator.........................|ale-openapi-ibm-validator|
     prettier..............................|ale-openapi-prettier|
     yamllint..............................|ale-openapi-yamllint|
+  openscad................................|ale-openscad-options|
+    sca2d.................................|ale-openscad-sca2d|
   packer..................................|ale-packer-options|
     packer-fmt-fixer......................|ale-packer-fmt-fixer|
   pascal..................................|ale-pascal-options|

supported-tools.md

@@ -405,6 +405,8 @@ formatting.
   * [ibm_validator](https://github.com/IBM/openapi-validator)
   * [prettier](https://github.com/prettier/prettier)
   * [yamllint](https://yamllint.readthedocs.io/)
+* OpenSCAD
+  * [SCA2D](https://gitlab.com/bath_open_instrumentation_group/sca2d)
 * Packer (HCL)
   * [packer-fmt-fixer](https://github.com/hashicorp/packer)
 * Pascal

test/handler/test_openscad_handler.vader

@@ -0,0 +1,76 @@
+Before:
+  call ale#test#SetDirectory('/testplugin/test/handler')
+
+  " Load sca2d
+  runtime ale_linters/openscad/sca2d.vim
+
+After:
+  call ale#test#RestoreDirectory()
+  call ale#linter#Reset()
+
+Execute(The openscad handler should handle sca2d output):
+  AssertEqual
+  \ [
+  \   {
+  \     'filename': ale#path#Simplify(g:dir . '/awesome_project.scad'),
+  \     'lnum': 7,
+  \     'type': 'E',
+  \     'col': 42,
+  \     'text': 'Module `corcle` used but never defined.',
+  \     'detail': 'E2002: Module `corcle` used but never defined.',
+  \   },
+  \ ],
+  \ ale#handlers#openscad#SCA2D_callback(bufnr(''), [
+  \  'awesome_project.scad:7:42: E2002: Module `corcle` used but never defined.',
+  \   '',
+  \   'SCA2D message summary',
+  \   '=====================',
+  \   'Fatal errors: 0',
+  \   'Errors:       1',
+  \   'Warnings:     0',
+  \   'Info:         0',
+  \   'Depreciated   0',
+  \ ])
+
+  AssertEqual
+  \ [
+  \   {
+  \     'filename': ale#path#Simplify(g:dir . '/awesome_project.scad'),
+  \     'lnum': 1,
+  \     'type': 'E',
+  \     'col': 37,
+  \     'text': 'Cannot read file due to syntax error:   - No terminal matches ''}'' in the current parser context',
+  \     'detail': 'F0001: Cannot read file due to syntax error:   - No terminal matches ''}'' in the current parser context',
+  \   },
+  \ ],
+  \ ale#handlers#openscad#SCA2D_callback(bufnr(''), [
+  \ 'awesome_project.scad:1:1: F0001: Cannot read file due to syntax error:',
+  \ '   - No terminal matches ''}'' in the current parser context, at line 1 col 37',
+  \ '   - ',
+  \ '   - translate([ 0, 0, 0 ]) { circle(10) }',
+  \ '   -                                     ^',
+  \ '   - Expected one of: ',
+  \ '   - 	* IF',
+  \ '   - 	* LET',
+  \ '   - 	* FOR',
+  \ '   - 	* FUNC_CALL_NAME',
+  \ '   - 	* TERMINATION',
+  \ '   - 	* STAR',
+  \ '   - 	* LBRACE',
+  \ '   - 	* BANG',
+  \ '   - 	* ASSIGN',
+  \ '   - 	* PERCENT',
+  \ '   - 	* HASH',
+  \ '   - 	* INTERSECTION_FOR',
+  \ '   - ',
+  \ 'If you belive this is a bug in SCA2D please report it to us.',
+  \ '',
+  \ '',
+  \ 'SCA2D message summary',
+  \ '=====================',
+  \ 'Fatal errors: 1',
+  \ 'Errors:       0',
+  \ 'Warnings:     0',
+  \ 'Info:         0',
+  \ 'Depreciated   0',
+  \ ])

test/linter/test_openscad_sca2d.vader

@@ -0,0 +1,12 @@
+Before:
+  call ale#assert#SetUpLinterTest('openscad', 'sca2d')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The options should be used in the command):
+  AssertLinter 'sca2d', ale#Escape('sca2d') . ' %s'
+
+  let b:ale_openscad_sca2d_options = '--foobar'
+
+  AssertLinter 'sca2d', ale#Escape('sca2d') . ' --foobar %s'