rclconfig.py, rclexecm.py: implement part of mimetype identification for rclexecm test mode

src/filters/rclexecm.py

@@ -386,6 +386,7 @@ def main(proto, extract):
 
     if len(args) != 1:
         usage()
+    path = args[0]
         
     def mimetype_with_file(f):
         cmd = 'file -i "' + f + '"'
@@ -403,10 +404,15 @@ def main(proto, extract):
         if not actAsSingle:
             proto.breakwrite(out, makebytes(s+'\n'))
 
-    params = {'filename:': makebytes(args[0])}
+    params = {'filename:': makebytes(path)}
-    # Some filters (e.g. rclaudio) need/get a MIME type from the indexer
+
-    mimetype = mimetype_with_file(args[0])
+    # Some filters (e.g. rclaudio) need/get a MIME type from the indexer.
-    params['mimetype:'] = mimetype
+    # We make a half-assed attempt to emulate:
+    mimetype = my_config.mimeType(path)
+    if not mimetype and not _mswindows:
+        mimetype = mimetype_with_file(path)
+    if mimetype:
+        params['mimetype:'] = mimetype
 
     if not extract.openfile(params):
         print("Open error", file=sys.stderr)

src/python/recoll/recoll/rclconfig.py

@@ -28,6 +28,7 @@ class RclDynConf:
 class RclConfig:
     def __init__(self, argcnf = None):
         self.config = None
+        self.mimemap = None
         platsys = platform.system()
         # Find configuration directory
         if argcnf is not None:
@@ -89,6 +90,28 @@ class RclConfig:
             self.config = conftree.ConfStack("recoll.conf", self.cdirs, "tree")
         return self.config.get(nm, self.keydir)
 
+    # This is a simplified version of the c++ code, intended mostly for the
+    # test mode of rclexecm.py. We don't attempt to check the data, so this
+    # will not work on extension-less paths (e.g. mbox/mail/etc.)
+    def mimeType(self, path):
+        if not self.mimemap:
+            self.mimemap = conftree.ConfStack("mimemap", self.cdirs, "tree")
+        if os.path.exists(path):
+            if os.path.isdir(path):
+                return "inode/directory"
+            if os.path.islink(path):
+                return "inode/symlink"
+            if not os.path.isfile(path):
+                return "inode/x-fsspecial"
+            try:
+                size = os.path.getsize(path)
+                if size == 0:
+                    return "inode/x-empty"
+            except:
+                pass
+        ext = os.path.splitext(path)[1]
+        return self.mimemap.get(ext, self.keydir)
+        
 class RclExtraDbs:
     def __init__(self, config):
         self.config = config