Clean up some vint lint warnings

Author: jparise

ftplugin/graphql.vim

@@ -2,7 +2,7 @@
 " Language: GraphQL
 " Maintainer: Jon Parise <[email protected]>
 
-if (exists("b:did_ftplugin"))
+if (exists('b:did_ftplugin'))
   finish
 endif
 let b:did_ftplugin = 1

indent/graphql.vim

@@ -2,7 +2,7 @@
 " Language: GraphQL
 " Maintainer: Jon Parise <[email protected]>
 
-if exists("b:did_indent")
+if exists('b:did_indent')
   finish
 endif
 let b:did_indent = 1
@@ -16,16 +16,16 @@ setlocal indentexpr=GetGraphQLIndent()
 setlocal indentkeys=0{,0},0),0[,0],0#,!^F,o,O,e
 
 " If our indentation function already exists, we have nothing more to do.
-if exists("*GetGraphQLIndent")
+if exists('*GetGraphQLIndent')
   finish
 endif
 
-let s:cpo_save = &cpo
-set cpo&vim
+let s:cpo_save = &cpoptions
+set cpoptions&vim
 
 " Check if the character at lnum:col is inside a string.
 function s:InString(lnum, col)
-  return synIDattr(synID(a:lnum, a:col, 1), 'name') == 'graphqlString'
+  return synIDattr(synID(a:lnum, a:col, 1), 'name') is# 'graphqlString'
 endfunction
 
 function GetGraphQLIndent()
@@ -41,15 +41,15 @@ function GetGraphQLIndent()
   " If this line contains just a closing bracket, find its matching opening
   " bracket and indent the closing backet to match.
   let l:col = matchend(l:line, '^\s*[]})]')
-  if l:col > 0 && !s:InString(v:lnum, col)
+  if l:col > 0 && !s:InString(v:lnum, l:col)
     let l:bracket = l:line[l:col - 1]
     call cursor(v:lnum, l:col)
 
-    if l:bracket == '}'
+    if l:bracket is# '}'
       let l:matched = searchpair('{', '', '}', 'bW')
-    elseif l:bracket == ']'
+    elseif l:bracket is# ']'
       let l:matched = searchpair('\[', '', '\]', 'bW')
-    elseif l:bracket == ')'
+    elseif l:bracket is# ')'
       let l:matched = searchpair('(', '', ')', 'bW')
     else
       let l:matched = -1
@@ -65,13 +65,13 @@ function GetGraphQLIndent()
 
   " If the previous line contained an opening bracket, and we are still in it,
   " add indent depending on the bracket type.
-  if getline(l:prevlnum) =~ '[[{(]\s*$'
+  if getline(l:prevlnum) =~# '[[{(]\s*$'
     return indent(l:prevlnum) + shiftwidth()
   endif
 
   " Default to the existing indentation level.
   return indent(l:prevlnum)
 endfunction
 
-let &cpo = s:cpo_save
+let &cpoptions = s:cpo_save
 unlet s:cpo_save

plugin/graphql.vim

@@ -1,3 +1,7 @@
+" Vim plugin
+" Language: GraphQL
+" Maintainer: Jon Parise <[email protected]>
+"
 if (!exists('g:graphql_javascript_tags'))
   let g:graphql_javascript_tags = ['gql', 'graphql', 'Relay.QL']
 endif

syntax/graphql.vim

@@ -2,7 +2,7 @@
 " Language: GraphQL
 " Maintainer: Jon Parise <[email protected]>
 
-if exists("b:current_syntax")
+if exists('b:current_syntax')
     finish
 endif
 
@@ -60,4 +60,4 @@ hi def link graphqlVariable         Identifier
 
 syn sync minlines=500
 
-let b:current_syntax = "graphql"
+let b:current_syntax = 'graphql'