Move ccls functions to autoload/ale/handler

Tests are kept as-is.

ale_linters/c/ccls.vim

@@ -4,29 +4,11 @@
 call ale#Set('c_ccls_executable', 'ccls')
 call ale#Set('c_ccls_init_options', {})
 
-function! ale_linters#c#ccls#GetProjectRoot(buffer) abort
-    let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls-root')
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
-    endif
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls')
-    endif
-
-    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
-endfunction
-
-function! ale_linters#c#ccls#GetInitializationOptions(buffer) abort
-    return ale#Var(a:buffer, 'c_ccls_init_options')
-endfunction
-
 call ale#linter#Define('c', {
 \   'name': 'ccls',
 \   'lsp': 'stdio',
 \   'executable_callback': ale#VarFunc('c_ccls_executable'),
 \   'command': '%e',
-\   'project_root_callback': 'ale_linters#c#ccls#GetProjectRoot',
+\   'project_root_callback': 'ale#handlers#ccls#GetProjectRoot',
-\   'initialization_options_callback': 'ale_linters#c#ccls#GetInitializationOptions',
+\   'initialization_options_callback':ale#VarFunc('c_ccls_init_options'),
 \})

ale_linters/cpp/ccls.vim

@@ -4,29 +4,11 @@
 call ale#Set('cpp_ccls_executable', 'ccls')
 call ale#Set('cpp_ccls_init_options', {})
 
-function! ale_linters#cpp#ccls#GetProjectRoot(buffer) abort
-    let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls-root')
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
-    endif
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls')
-    endif
-
-    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
-endfunction
-
-function! ale_linters#cpp#ccls#GetInitializationOptions(buffer) abort
-    return ale#Var(a:buffer, 'cpp_ccls_init_options')
-endfunction
-
 call ale#linter#Define('cpp', {
 \   'name': 'ccls',
 \   'lsp': 'stdio',
 \   'executable_callback': ale#VarFunc('cpp_ccls_executable'),
 \   'command': '%e',
-\   'project_root_callback': 'ale_linters#cpp#ccls#GetProjectRoot',
+\   'project_root_callback': 'ale#handlers#ccls#GetProjectRoot',
-\   'initialization_options_callback': 'ale_linters#cpp#ccls#GetInitializationOptions',
+\   'initialization_options_callback': ale#VarFunc('cpp_ccls_init_options'),
 \})

ale_linters/objc/ccls.vim

@@ -4,29 +4,11 @@
 call ale#Set('objc_ccls_executable', 'ccls')
 call ale#Set('objc_ccls_init_options', {})
 
-function! ale_linters#objc#ccls#GetProjectRoot(buffer) abort
-    let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls-root')
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
-    endif
-
-    if empty(l:project_root)
-        let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls')
-    endif
-
-    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
-endfunction
-
-function! ale_linters#objc#ccls#GetInitializationOptions(buffer) abort
-    return ale#Var(a:buffer, 'objc_ccls_init_options')
-endfunction
-
 call ale#linter#Define('objc', {
 \   'name': 'ccls',
 \   'lsp': 'stdio',
 \   'executable_callback': ale#VarFunc('objc_ccls_executable'),
 \   'command': '%e',
-\   'project_root_callback': 'ale_linters#objc#ccls#GetProjectRoot',
+\   'project_root_callback': 'ale#handlers#ccls#GetProjectRoot',
-\   'initialization_options_callback': 'ale_linters#objc#ccls#GetInitializationOptions',
+\   'initialization_options_callback': ale#VarFunc('objc_ccls_init_options'),
 \})

autoload/ale/handlers/ccls.vim

@@ -0,0 +1,17 @@
+scriptencoding utf-8
+" Author: Ye Jingchen <ye.jingchen@gmail.com>
+" Description: Utilities for ccls
+
+function! ale#handlers#ccls#GetProjectRoot(buffer) abort
+    let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls-root')
+
+    if empty(l:project_root)
+        let l:project_root = ale#path#FindNearestFile(a:buffer, 'compile_commands.json')
+    endif
+
+    if empty(l:project_root)
+        let l:project_root = ale#path#FindNearestFile(a:buffer, '.ccls')
+    endif
+
+    return !empty(l:project_root) ? fnamemodify(l:project_root, ':h') : ''
+endfunction