From d5b94112566eeb381230b306f3c4c01020986edd Mon Sep 17 00:00:00 2001
From: Emmanuel Thompson <eet6646@gmail.com>
Date: Thu, 5 Nov 2020 13:59:53 -0500
Subject: [PATCH] Add a GetConfigurations function

---
 README.md                           | 10 +++++++
 autoload/vimspector.vim             | 10 +++++++
 python3/vimspector/debug_session.py | 45 ++++++++++++++++-------------
 tests/get_configurations.test.vim   | 21 ++++++++++++++
 4 files changed, 66 insertions(+), 20 deletions(-)
 create mode 100644 tests/get_configurations.test.vim

diff --git a/README.md b/README.md
index 38bd320..1e4e491 100644
--- a/README.md
+++ b/README.md
@@ -671,6 +671,16 @@ Vimspector uses the following logic to choose a configuration to launch:
 
 See [the reference guide][vimspector-ref-config-selection] for details.
 
+
+### Get configurations
+
+* Use `vimspector#GetConfigurations()` to get a list of configurations
+
+For example, to get an array of configurations and fuzzy matching on the result
+```viml
+:call matchfuzzy(vimspector#GetConfigurations(), "test::case_1")
+```
+
 ## Breakpoints
 
 * Use `vimspector#ToggleBreakpoint([ { 'condition': '<condition expr>' } ])`
diff --git a/autoload/vimspector.vim b/autoload/vimspector.vim
index 410fd2d..6509e14 100644
--- a/autoload/vimspector.vim
+++ b/autoload/vimspector.vim
@@ -277,6 +277,16 @@ function! vimspector#ListBreakpoints() abort
   py3 _vimspector_session.ListBreakpoints()
 endfunction
 
+function! vimspector#GetConfigurations() abort
+  if !s:Enabled()
+    return
+  endif
+  let configurations = py3eval(
+              \ 'list( _vimspector_session.GetConfigurations()[ 1 ].keys() )'
+              \ . ' if _vimspector_session else []' )
+  return configurations
+endfunction
+
 function! vimspector#CompleteOutput( ArgLead, CmdLine, CursorPos ) abort
   if !s:Enabled()
     return
diff --git a/python3/vimspector/debug_session.py b/python3/vimspector/debug_session.py
index 42b6340..4f1ef0b 100644
--- a/python3/vimspector/debug_session.py
+++ b/python3/vimspector/debug_session.py
@@ -79,6 +79,24 @@ class DebugSession( object ):
     self._server_capabilities = {}
     self.ClearTemporaryBreakpoints()
 
+  def GetConfigurations( self ):
+    current_file = utils.GetBufferFilepath( vim.current.buffer )
+    filetypes = utils.GetBufferFiletypes( vim.current.buffer )
+    configurations = {}
+
+    for launch_config_file in PathsToAllConfigFiles( VIMSPECTOR_HOME,
+                                                     current_file,
+                                                     filetypes ):
+      self._logger.debug( f'Reading configurations from: {launch_config_file}' )
+      if not launch_config_file or not os.path.exists( launch_config_file ):
+        continue
+
+      with open( launch_config_file, 'r' ) as f:
+        database = json.loads( minify( f.read() ) )
+        configurations.update( database.get( 'configurations' or {} ) )
+
+    return launch_config_file, configurations
+
   def Start( self, launch_variables = None ):
     # We mutate launch_variables, so don't mutate the default argument.
     # https://docs.python-guide.org/writing/gotchas/#mutable-default-arguments
@@ -91,10 +109,15 @@ class DebugSession( object ):
     self._adapter = None
 
     current_file = utils.GetBufferFilepath( vim.current.buffer )
-    filetypes = utils.GetBufferFiletypes( vim.current.buffer )
-    configurations = {}
+    launch_config_file, configurations = self.GetConfigurations()
     adapters = {}
 
+    if not configurations:
+      utils.UserMessage( 'Unable to find any debug configurations. '
+                         'You need to tell vimspector how to launch your '
+                         'application.' )
+      return
+
     glob.glob( install.GetGadgetDir( VIMSPECTOR_HOME ) )
     for gadget_config_file in PathsToAllGadgetConfigs( VIMSPECTOR_HOME,
                                                        current_file ):
@@ -106,24 +129,6 @@ class DebugSession( object ):
         a =  json.loads( minify( f.read() ) ).get( 'adapters' ) or {}
         adapters.update( a )
 
-    for launch_config_file in PathsToAllConfigFiles( VIMSPECTOR_HOME,
-                                                     current_file,
-                                                     filetypes ):
-      self._logger.debug( f'Reading configurations from: {launch_config_file}' )
-      if not launch_config_file or not os.path.exists( launch_config_file ):
-        continue
-
-      with open( launch_config_file, 'r' ) as f:
-        database = json.loads( minify( f.read() ) )
-        adapters.update( database.get( 'adapters' ) or {} )
-        configurations.update( database.get( 'configurations' or {} ) )
-
-    if not configurations:
-      utils.UserMessage( 'Unable to find any debug configurations. '
-                         'You need to tell vimspector how to launch your '
-                         'application.' )
-      return
-
     if 'configuration' in launch_variables:
       configuration_name = launch_variables.pop( 'configuration' )
     elif ( len( configurations ) == 1 and
diff --git a/tests/get_configurations.test.vim b/tests/get_configurations.test.vim
new file mode 100644
index 0000000..4a37d01
--- /dev/null
+++ b/tests/get_configurations.test.vim
@@ -0,0 +1,21 @@
+function! SetUp()
+  call vimspector#test#setup#SetUpWithMappings( v:none )
+endfunction
+
+function! ClearDown()
+  call vimspector#test#setup#ClearDown()
+endfunction
+
+function Test_Get_Configurations()
+  lcd ../support/test/csharp/
+
+  let configs = vimspector#GetConfigurations()
+  call assert_equal([
+              \ 'launch - netcoredbg',
+              \ 'launch - mono',
+              \ ], configs)
+
+  lcd -
+  %bwipe!
+endfunction
+