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" Description: Functions for working with Maven projects.
"
" Given a buffer number, find a Maven project root.
function! ale#maven#FindProjectRoot(buffer) abort
let l:wrapper_path = ale#path#FindNearestFile(a:buffer, 'mvnw')
if !empty(l:wrapper_path)
return fnamemodify(l:wrapper_path, ':h')
endif
let l:pom_path = ale#path#FindNearestFile(a:buffer, 'pom.xml')
if !empty(l:pom_path)
return fnamemodify(l:pom_path, ':h')
endif
return ''
endfunction
" Given a buffer number, find the path to the executable.
" First search on the path for 'mvnw' (mvnw.cmd on Windows), if nothing is found,
" try the global command. Returns an empty string if cannot find the executable.
function! ale#maven#FindExecutable(buffer) abort
let l:wrapper_cmd = has('unix') ? 'mvnw' : 'mvnw.cmd'
let l:wrapper_path = ale#path#FindNearestFile(a:buffer, l:wrapper_cmd)
if !empty(l:wrapper_path) && executable(l:wrapper_path)
return l:wrapper_path
endif
if executable('mvn')
return 'mvn'
endif
return ''
endfunction
" Given a buffer number, get a working directory and command to print the
" classpath of the root project.
"
" Returns an empty string for the command if Maven is not detected.
function! ale#maven#BuildClasspathCommand(buffer) abort
let l:executable = ale#maven#FindExecutable(a:buffer)
if !empty(l:executable)
let l:project_root = ale#maven#FindProjectRoot(a:buffer)
if !empty(l:project_root)
return [
\ l:project_root,
\ ale#Escape(l:executable) . ' dependency:build-classpath'
\]
endif
endif
return ['', '']
endfunction
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