before_script: with ./ at the beginning will load relative to tmuxp

file (project root). same behavior as start_directory. Some comments
on how .expand()'s cwd argument is the project's config file dir when
loading via cli.

Author: tony

tmuxp/cli.py

@@ -256,6 +256,7 @@ def load_workspace(config_file, args):
 
     sconfig = kaptan.Kaptan()
     sconfig = sconfig.import_config(config_file).get()
+    # expands configurations relative to config / profile file location
     sconfig = config.expand(sconfig, os.path.dirname(config_file))
     sconfig = config.trickle(sconfig)
 

tmuxp/config.py

@@ -164,6 +164,8 @@ def expand(sconf, cwd=None):
 
     """
 
+    # Note: cli.py will expand configs relative to project's config directory
+    # for the first cwd argument.
     if not cwd:
         cwd = os.getcwd()
 
@@ -175,6 +177,12 @@ def expand(sconf, cwd=None):
             start_path = os.path.normpath(os.path.join(cwd, start_path))
             sconf['start_directory'] = start_path
 
+    if 'before_script' in sconf:
+        before_script = sconf['before_script']
+        if any(before_script.startswith(a) for a in ['.', './']):
+            before_script = os.path.normpath(os.path.join(cwd, before_script))
+            sconf['before_script'] = before_script
+
     if (
         'shell_command' in sconf and
         isinstance(sconf['shell_command'], string_types)