pylint: Move to the buffer's directory before running pylint command (Fix #1472)

2 files changed, 14 insertions, 7 deletions

diff --git a/ale_linters/python/pylint.vim b/ale_linters/python/pylint.vim
index e3e6624d..d757e8e8 100644
--- a/ale_linters/python/pylint.vim
+++ b/ale_linters/python/pylint.vim
@@ -14,7 +14,8 @@ function! ale_linters#python#pylint#GetExecutable(buffer) abort
 endfunction
 
 function! ale_linters#python#pylint#GetCommand(buffer) abort
-    return ale#Escape(ale_linters#python#pylint#GetExecutable(a:buffer))
+    return ale#path#BufferCdString(a:buffer)
+    \   . ale#Escape(ale_linters#python#pylint#GetExecutable(a:buffer))
     \   . ' ' . ale#Var(a:buffer, 'python_pylint_options')
     \   . ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n'
     \   . ' %s'
diff --git a/test/command_callback/test_pylint_command_callback.vader b/test/command_callback/test_pylint_command_callback.vader
index 1ff8e354..5dc6abe9 100644
--- a/test/command_callback/test_pylint_command_callback.vader
+++ b/test/command_callback/test_pylint_command_callback.vader
@@ -28,7 +28,8 @@ Execute(The pylint callbacks should return the correct default values):
   \ 'pylint',
   \ ale_linters#python#pylint#GetExecutable(bufnr(''))
   AssertEqual
-  \ ale#Escape('pylint') . ' ' . b:command_tail,
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('pylint') . ' ' . b:command_tail,
   \ ale_linters#python#pylint#GetCommand(bufnr(''))
 
 Execute(The pylint executable should be configurable, and escaped properly):
@@ -38,14 +39,16 @@ Execute(The pylint executable should be configurable, and escaped properly):
   \ 'executable with spaces',
   \ ale_linters#python#pylint#GetExecutable(bufnr(''))
   AssertEqual
-  \ ale#Escape('executable with spaces') . ' ' . b:command_tail,
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('executable with spaces') . ' ' . b:command_tail,
   \ ale_linters#python#pylint#GetCommand(bufnr(''))
 
 Execute(The pylint command callback should let you set options):
   let g:ale_python_pylint_options = '--some-option'
 
   AssertEqual
-  \ ale#Escape('pylint') . ' --some-option' . b:command_tail,
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('pylint') . ' --some-option' . b:command_tail,
   \ ale_linters#python#pylint#GetCommand(bufnr(''))
 
 Execute(The pylint callbacks shouldn't detect virtualenv directories where they don't exist):
@@ -55,7 +58,8 @@ Execute(The pylint callbacks shouldn't detect virtualenv directories where they
   \ 'pylint',
   \ ale_linters#python#pylint#GetExecutable(bufnr(''))
   AssertEqual
-  \ ale#Escape('pylint') . ' ' . b:command_tail,
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('pylint') . ' ' . b:command_tail,
   \ ale_linters#python#pylint#GetCommand(bufnr(''))
 
 Execute(The pylint callbacks should detect virtualenv directories):
@@ -70,7 +74,8 @@ Execute(The pylint callbacks should detect virtualenv directories):
   \ ale_linters#python#pylint#GetExecutable(bufnr(''))
 
   AssertEqual
-  \ ale#Escape(b:executable) . ' ' . b:command_tail,
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape(b:executable) . ' ' . b:command_tail,
   \ ale_linters#python#pylint#GetCommand(bufnr(''))
 
 Execute(You should able able to use the global pylint instead):
@@ -81,5 +86,6 @@ Execute(You should able able to use the global pylint instead):
   \ 'pylint',
   \ ale_linters#python#pylint#GetExecutable(bufnr(''))
   AssertEqual
-  \ ale#Escape('pylint') . ' ' . b:command_tail,
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('pylint') . ' ' . b:command_tail,
   \ ale_linters#python#pylint#GetCommand(bufnr(''))