Merge commit '76265755a1add77121c8f9dabb3e9bb70fe9a972' as '.vim/bundle/ale'

[etc/vim.git] / .vim / bundle / ale / ale_linters / java / javac.vim

diff --git a/.vim/bundle/ale/ale_linters/java/javac.vim b/.vim/bundle/ale/ale_linters/java/javac.vim
new file mode 100644 (file)
index 0000000..971e8de
--- /dev/null
+++ b/.vim/bundle/ale/ale_linters/java/javac.vim
@@ -0,0 +1,163 @@
+" Author: farenjihn <farenjihn@gmail.com>, w0rp <devw0rp@gmail.com>
+" Description: Lints java files using javac
+
+let s:classpath_sep = has('unix') ? ':' : ';'
+
+call ale#Set('java_javac_executable', 'javac')
+call ale#Set('java_javac_options', '')
+call ale#Set('java_javac_classpath', '')
+call ale#Set('java_javac_sourcepath', '')
+
+function! ale_linters#java#javac#RunWithImportPaths(buffer) abort
+    let [l:cwd, l:command] = ale#maven#BuildClasspathCommand(a:buffer)
+
+    " Try to use Gradle if Maven isn't available.
+    if empty(l:command)
+        let [l:cwd, l:command] = ale#gradle#BuildClasspathCommand(a:buffer)
+    endif
+
+    " Try to use Ant if Gradle and Maven aren't available
+    if empty(l:command)
+        let [l:cwd, l:command] = ale#ant#BuildClasspathCommand(a:buffer)
+    endif
+
+    if empty(l:command)
+        return ale_linters#java#javac#GetCommand(a:buffer, [], {})
+    endif
+
+    return ale#command#Run(
+    \   a:buffer,
+    \   l:command,
+    \   function('ale_linters#java#javac#GetCommand'),
+    \   {'cwd': l:cwd},
+    \)
+endfunction
+
+function! s:BuildClassPathOption(buffer, import_paths) abort
+    " Filter out lines like [INFO], etc.
+    let l:class_paths = filter(a:import_paths[:], 'v:val !~# ''[''')
+    let l:cls_path = ale#Var(a:buffer, 'java_javac_classpath')
+
+    if !empty(l:cls_path) && type(l:cls_path) is v:t_string
+        call extend(l:class_paths, split(l:cls_path, s:classpath_sep))
+    endif
+
+    if !empty(l:cls_path) && type(l:cls_path) is v:t_list
+        call extend(l:class_paths, l:cls_path)
+    endif
+
+    return !empty(l:class_paths)
+    \   ? '-cp ' . ale#Escape(join(l:class_paths, s:classpath_sep))
+    \   : ''
+endfunction
+
+function! ale_linters#java#javac#GetCommand(buffer, import_paths, meta) abort
+    let l:cp_option = s:BuildClassPathOption(a:buffer, a:import_paths)
+    let l:sp_option = ''
+
+    " Find the src directory, for files in this project.
+    let l:src_dir = ale#path#FindNearestDirectory(a:buffer, 'src/main/java')
+    let l:sp_dirs = []
+
+    if !empty(l:src_dir)
+        call add(l:sp_dirs, l:src_dir)
+
+        " Automatically include the jaxb directory too, if it's there.
+        let l:jaxb_dir = fnamemodify(l:src_dir, ':h:h')
+        \   . (has('win32') ? '\jaxb\' : '/jaxb/')
+
+        if isdirectory(l:jaxb_dir)
+            call add(l:sp_dirs, l:jaxb_dir)
+        endif
+    endif
+
+    " Automatically include the test directory, but only for test code.
+    if expand('#' . a:buffer . ':p') =~? '\vsrc[/\\]test[/\\]java'
+        let l:test_dir = ale#path#FindNearestDirectory(a:buffer, 'src/test/java')
+
+        if isdirectory(l:test_dir)
+            call add(l:sp_dirs, l:test_dir)
+        endif
+    endif
+
+    let l:source_paths = []
+    let l:source_path = ale#Var(a:buffer, 'java_javac_sourcepath')
+
+    if !empty(l:source_path) && type(l:source_path) is v:t_string
+        let l:source_paths = split(l:source_path, s:classpath_sep)
+    endif
+
+    if !empty(l:source_path) && type(l:source_path) is v:t_list
+        let l:source_paths = l:source_path
+    endif
+
+    if !empty(l:source_paths)
+        for l:path in l:source_paths
+            let l:sp_path = ale#path#FindNearestDirectory(a:buffer, l:path)
+
+            if !empty(l:sp_path)
+                call add(l:sp_dirs, l:sp_path)
+            endif
+        endfor
+    endif
+
+    if !empty(l:sp_dirs)
+        let l:sp_option = '-sourcepath '
+        \   . ale#Escape(join(l:sp_dirs, s:classpath_sep))
+    endif
+
+    " Create .class files in a temporary directory, which we will delete later.
+    let l:class_file_directory = ale#command#CreateDirectory(a:buffer)
+
+    " Always run javac from the directory the file is in, so we can resolve
+    " relative paths correctly.
+    return '%e -Xlint'
+    \ . ale#Pad(l:cp_option)
+    \ . ale#Pad(l:sp_option)
+    \ . ' -d ' . ale#Escape(l:class_file_directory)
+    \ . ale#Pad(ale#Var(a:buffer, 'java_javac_options'))
+    \ . ' %t'
+endfunction
+
+function! ale_linters#java#javac#Handle(buffer, lines) abort
+    " Look for lines like the following.
+    "
+    " Main.java:13: warning: [deprecation] donaught() in Testclass has been deprecated
+    " Main.java:16: error: ';' expected
+    let l:directory = expand('#' . a:buffer . ':p:h')
+    let l:pattern = '\v^(.*):(\d+): (.{-1,}):(.+)$'
+    let l:col_pattern = '\v^(\s*\^)$'
+    let l:symbol_pattern = '\v^ +symbol: *(class|method) +([^ ]+)'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, [l:pattern, l:col_pattern, l:symbol_pattern])
+        if empty(l:match[2]) && empty(l:match[3])
+            if !empty(l:match[1]) && !empty(l:output)
+                let l:output[-1].col = len(l:match[1])
+            endif
+        elseif empty(l:match[3])
+            " Add symbols to 'cannot find symbol' errors.
+            if l:output[-1].text is# 'error: cannot find symbol'
+                let l:output[-1].text .= ': ' . l:match[2]
+            endif
+        else
+            call add(l:output, {
+            \   'filename': ale#path#GetAbsPath(l:directory, l:match[1]),
+            \   'lnum': l:match[2] + 0,
+            \   'text': l:match[3] . ':' . l:match[4],
+            \   'type': l:match[3] is# 'error' ? 'E' : 'W',
+            \})
+        endif
+    endfor
+
+    return l:output
+endfunction
+
+call ale#linter#Define('java', {
+\   'name': 'javac',
+\   'executable': {b -> ale#Var(b, 'java_javac_executable')},
+\   'cwd': '%s:h',
+\   'command': function('ale_linters#java#javac#RunWithImportPaths'),
+\   'output_stream': 'stderr',
+\   'callback': 'ale_linters#java#javac#Handle',
+\})