Added support for importing entries.

jrnl/plugins/__init__.py

@@ -42,3 +42,10 @@ def get_exporter(format):
         if hasattr(exporter, "names") and format in exporter.names:
             return exporter
     return None
+
+
+def get_importer(format):
+    for importer in BaseImporter.PLUGINS:
+        if hasattr(importer, "names") and format in importer.names:
+            return importer
+    return None

jrnl/plugins/jrnl_importer.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# encoding: utf-8
+
+from __future__ import absolute_import, unicode_literals
+import codecs
+import sys
+from . import BaseImporter
+from .. import util
+
+class JRNLImporter(BaseImporter):
+    """This plugin imports entries from other jrnl files."""
+    names = ["jrnl"]
+
+    @staticmethod
+    def import_(journal, input=None):
+        """Imports from an existing file if input is specified, and
+        standard input otherwise."""
+        old_cnt = len(journal.entries)
+        old_entries = journal.entries
+        if input:
+            with codecs.open(input, "r", "utf-8") as f:
+                other_journal_txt = f.read()
+        else:
+            try:
+                other_journal_txt = sys.stdin.read()
+            except KeyboardInterrupt:
+                util.prompt("[Entries NOT imported into journal.]")
+                sys.exit(0)
+        journal.import_(other_journal_txt)
+        new_cnt = len(journal.entries)
+        util.prompt("[{0} imported to {1} journal]".format(new_cnt - old_cnt, journal.name))
+        journal.write()