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Rubocop: handle empty 'files' array in output

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The handler previously assumed there would be at least one entry in the
'files' array in the output JSON. It looks like this in the normal case:

  "files":[{"path":"app/models/image.rb","offenses":[]}]

But if RuboCop's config excludes the specified input files, causing no
files to be linted, the output is emptier:

  "files":[]

This change causes the handler to treat that case correctly, and also
exit early if the reported offense_count is zero.
This commit is contained in:
Eddie Lebow 2017-07-12 19:42:54 -04:00
parent 5885954197
commit dcbb0ffee5
2 changed files with 18 additions and 0 deletions
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4
ale_linters/ruby/rubocop.vim
View File

@ -28,6 +28,10 @@ function! ale_linters#ruby#rubocop#Handle(buffer, lines) abort
\}] \}]
endtry endtry
if l:errors['summary']['offense_count'] == 0 || empty(l:errors['files'])
return []
endif
let l:output = [] let l:output = []
for l:error in l:errors['files'][0]['offenses'] for l:error in l:errors['files'][0]['offenses']

14
test/handler/test_rubocop_handler.vader
View File

@ -41,6 +41,20 @@ Execute(The rubocop handler should parse lines correctly):
\ '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[{"path":"my_great_file.rb","offenses":[{"severity":"convention","message":"Prefer single-quoted strings...","cop_name":"Style/SomeCop","corrected":false,"location":{"line":83,"column":29,"length":7}},{"severity":"fatal","message":"Some error","cop_name":"Style/SomeOtherCop","corrected":false,"location":{"line":12,"column":2,"length":1}},{"severity":"warning","message":"Regular warning","cop_name":"Style/WarningCop","corrected":false,"location":{"line":10,"column":5,"length":8}},{"severity":"error","message":"Another error","cop_name":"Style/SpaceBeforeBlockBraces","corrected":false,"location":{"line":11,"column":1,"length":1}}]}],"summary":{"offense_count":4,"target_file_count":1,"inspected_file_count":1}}' \ '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[{"path":"my_great_file.rb","offenses":[{"severity":"convention","message":"Prefer single-quoted strings...","cop_name":"Style/SomeCop","corrected":false,"location":{"line":83,"column":29,"length":7}},{"severity":"fatal","message":"Some error","cop_name":"Style/SomeOtherCop","corrected":false,"location":{"line":12,"column":2,"length":1}},{"severity":"warning","message":"Regular warning","cop_name":"Style/WarningCop","corrected":false,"location":{"line":10,"column":5,"length":8}},{"severity":"error","message":"Another error","cop_name":"Style/SpaceBeforeBlockBraces","corrected":false,"location":{"line":11,"column":1,"length":1}}]}],"summary":{"offense_count":4,"target_file_count":1,"inspected_file_count":1}}'
\ ]) \ ])
Execute(The rubocop handler should handle when files are checked and no offenses are found):
AssertEqual
\ [],
\ ale_linters#ruby#rubocop#Handle(347, [
\ '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[{"path":"my_great_file.rb","offenses":[]}],"summary":{"offense_count":0,"target_file_count":1,"inspected_file_count":1}}'
\ ])
Execute(The rubocop handler should handle when no files are checked):
AssertEqual
\ [],
\ ale_linters#ruby#rubocop#Handle(347, [
\ '{"metadata":{"rubocop_version":"0.47.1","ruby_engine":"ruby","ruby_version":"2.1.5","ruby_patchlevel":"273","ruby_platform":"x86_64-linux-gnu"},"files":[],"summary":{"offense_count":0,"target_file_count":0,"inspected_file_count":0}}'
\ ])
Execute(Parse errors should be handled for rubocop): Execute(Parse errors should be handled for rubocop):
let g:lines = [ let g:lines = [
\ '/my/project/.rubocop.yml: Layout/MultilineOperationIndentation has the wrong namespace - should be Style', \ '/my/project/.rubocop.yml: Layout/MultilineOperationIndentation has the wrong namespace - should be Style',