From 4e9ce17c71c78b4b1bda6581d9704dadf72b3424 Mon Sep 17 00:00:00 2001
From: Fabien Benureau <fabien.benureau+git@gmail.com>
Date: Tue, 2 Jul 2013 15:58:35 +0100
Subject: [PATCH] adapted update to version 3

---
 papers/commands/update_cmd.py | 58 +++++++++++++++++++++++++++++------
 1 file changed, 48 insertions(+), 10 deletions(-)

diff --git a/papers/commands/update_cmd.py b/papers/commands/update_cmd.py
index 041d955..bcf65ee 100644
--- a/papers/commands/update_cmd.py
+++ b/papers/commands/update_cmd.py
@@ -1,5 +1,8 @@
+import sys
+
 from .. import repo
 from .. import color
+from ..configs import config
 
 def parser(subparsers):
     parser = subparsers.add_parser('update', help='update the repository to the lastest format')
@@ -7,13 +10,48 @@ def parser(subparsers):
 
 
 def command(ui):
-    rp = repo.Repository.from_directory(config)
-    msg = ("You should backup the paper directory {} before continuing."
-           "Continue ?").format(color.dye(rp.papersdir, color.filepath))
-    sure = ui.input_yn(question=msg, default='n')
-    if sure:
-        for p in rp.all_papers():
-            tags = set(p.metadata['tags'])
-            tags = tags.union(p.metadata['labels'])
-            p.metadata.pop('labels', [])
-            rp.save_paper(p)
+    rp = repo.Repository(config())
+    code_version = papers.__version__
+    repo_version = config().version
+
+    if repo_version == code_version:
+        ui._print('You papers repository is up-to-date.')
+        sys.exit(0)
+    elif repo_version <= code_version:
+        ui._print('Your repository was generated with an newer version of papers.\n'
+                  'You should not use papers until you install the newest version.')
+        sys.exit(0)
+    else:
+        msg = ("You should backup the paper directory {} before continuing."
+               "Continue ?").format(color.dye(rp.papersdir, color.filepath))
+        sure = ui.input_yn(question=msg, default='n')
+        if not sure:
+            sys.exit(0)
+
+        if repo_version == 1:
+            for p in rp.all_papers():
+                tags = set(p.metadata['tags'])
+                tags = tags.union(p.metadata['labels'])
+                p.metadata.pop('labels', [])
+                rp.save_paper(p)
+            repo_version = 2
+        if repo_version == 2:
+            # update config
+            cfg_update = [('papers-directory', 'papers_dir'),
+                          ('open-cmd', 'open_cmd'),
+                          ('edit-cmd', 'edit_cmd'),
+                          ('import-copy', 'import_copy'),
+                          ('import-move', 'import_move'),
+                         ]
+            for old, new in cfg_update:
+                try:
+                    config().__setattr__('papers', new, config()._cfg.get('papers', old))
+                    config()._cfg.remove_option('papers', old)
+                except Exception:
+                    pass
+            config().save()
+            repo_version = 3
+
+
+        config().version = repo_version
+        config().save()
\ No newline at end of file