Import LinuxCNC source tree

lib/python/gladevcp/__init__.py

@@ -0,0 +1,70 @@
+from .hal_pythonplugin import *
+
+try:
+    import importlib
+    support_aux_apps = True
+except:
+    support_aux_apps = False
+    print("\n")
+    print("Gladevcp: Cannot import importlib")
+    print("          Auxiliary Gladevcp apps not available\n")
+
+#----------------------------------------------------------------------
+# Support auxiliary gladevcp apps
+import os,sys,glob,subprocess
+
+def excluded_filename(fname):
+    exclude_list = ["install","setup"]
+    for e in exclude_list:
+        if e in fname: return True
+    return False
+
+if support_aux_apps:
+    #----------------------------------------------------------------------
+    modnames = []
+    #----------------------------------------------------------------------
+    # Auxiliary gladevcp apps specified by environmental variable
+    gladevcp_user_extras = os.getenv('GLADEVCP_EXTRAS')
+    if gladevcp_user_extras is not None:
+        print("gladevcp: GLADEVCP_EXTRAS:",gladevcp_user_extras)
+        for extradir in gladevcp_user_extras.split(":"):
+            for fname in glob.glob(extradir + "/*.py"):
+                if excluded_filename(fname):
+                    print("gladevcp: excluded filename:",fname)
+                    continue
+                modname = os.path.basename(fname).split(".")[0]
+                if modname in modnames:
+                    print("gladevcp: rejecting duplicate:",fname)
+                    continue
+                modnames.append(modname)
+                sys.path.insert(0,extradir) # prepend
+                importlib.import_module(modname)
+                print("gladevcp: importing:",fname)
+    #----------------------------------------------------------------------
+    # Auxiliary gladevcp apps may be installed in a known location
+    # location defined by the substitution item LINUXCNC_AUX_GLADEVCP.
+    # The location is available from the script linuxcnc_var
+    # (this script should always be in PATH for both RIP builds and
+    # deb installs of LinuxCNC)
+    s = subprocess.Popen(['linuxcnc_var','LINUXCNC_AUX_GLADEVCP']
+                        ,stdout=subprocess.PIPE
+                        ,stderr=subprocess.PIPE
+                        )
+    p,e = s.communicate()
+    gladevcp_aux_apps_dir = p.strip().decode() # remove trailing \n
+    for auxdir in glob.glob(gladevcp_aux_apps_dir + "/*"):
+        print("gladevcp: auxiliary dir:",auxdir)
+        for fname in glob.glob(auxdir + "/*.py"):
+            if excluded_filename(fname):
+                print("gladevcp: excluded filename:",fname)
+                continue
+            modname = os.path.basename(fname).split(".")[0]
+            if modname in modnames:
+                print("gladevcp: rejecting duplicate:",fname)
+                continue
+            modnames.append(modname)
+            sys.path.insert(0,auxdir) # prepend
+            importlib.import_module(modname)
+            print("gladevcp: importing:",fname)
+    
+    #----------------------------------------------------------------------