infocalypse

Added fn-info command to dump repository information.

diff --git a/infocalypse/__init__.py b/infocalypse/__init__.py
--- a/infocalypse/__init__.py
+++ b/infocalypse/__init__.py
@@ -154,7 +154,8 @@ from binascii import hexlify
 from mercurial import commands, util
 
 from infcmds import get_config_info, execute_create, execute_pull, \
-     execute_push, execute_setup, execute_copy, execute_reinsert
+     execute_push, execute_setup, execute_copy, execute_reinsert, \
+     execute_info
 
 def set_target_version(ui_, repo, opts, params, msg_fmt):
     """ INTERNAL: Update TARGET_VERSION in params. """
@@ -282,6 +283,24 @@ def infocalypse_push(ui_, repo, **opts):
 
     execute_push(ui_, repo, params, stored_cfg)
 
+def infocalypse_info(ui_, repo, **opts):
+    """ Display information about an Infocalypse repository.
+     """
+    # FCP not required. Hmmm... Hack
+    opts['fcphost'] = ''
+    opts['fcpport'] = 0
+    params, stored_cfg = get_config_info(ui_, opts)
+    request_uri = opts['uri']
+    if request_uri == '':
+        request_uri = stored_cfg.get_request_uri(repo.root)
+        if not request_uri:
+            ui_.warn("There is no stored request URI for this repo.\n"
+                     "Please set one with the --uri option.\n")
+            return
+
+    params['REQUEST_URI'] = request_uri
+    execute_info(ui_, repo, params, stored_cfg)
+
 def infocalypse_setup(ui_, **opts):
     """ Setup the extension for use for the first time. """
 
@@ -337,6 +356,10 @@ cmdtable = {
                     + NOSEARCH_OPT,
                     "[options]"),
 
+    "fn-info": (infocalypse_info,
+                 [('', 'uri', '', 'request URI'),],
+                "[options]"),
+ 
     "fn-setup": (infocalypse_setup,
                  [('', 'tmpdir', '~/infocalypse_tmp', 'temp directory'),]
                  + FCP_OPTS,
diff --git a/infocalypse/infcmds.py b/infocalypse/infcmds.py
--- a/infocalypse/infcmds.py
+++ b/infocalypse/infcmds.py
@@ -44,7 +44,7 @@ from updatesm import UpdateStateMachine,
      REQUESTING_URI_4_INSERT, INSERTING_BUNDLES, INSERTING_GRAPH, \
      INSERTING_URI, FAILING, REQUESTING_URI_4_COPY, CANCELING, CleaningUp
 
-from config import Config, DEFAULT_CFG_PATH
+from config import Config, DEFAULT_CFG_PATH, normalize
 
 DEFAULT_PARAMS = {
     # FCP params
@@ -671,6 +671,39 @@ def execute_pull(ui_, repo, params, stor
     finally:
         cleanup(update_sm)
 
+NO_INFO_FMT = """There's no stored information about that USK.
+USK hash: %s
+"""
+
+INFO_FMT ="""USK hash: %s
+index   : %i
+
+Request URI:
+%s
+Insert URI:
+%s
+"""
+
+def execute_info(ui_, repo, params, stored_cfg):
+    request_uri = params['REQUEST_URI']
+    if request_uri is None or not is_usk_file(request_uri):
+        ui_.status("Only works with USK file URIs.\n")
+        return
+
+    usk_hash = normalize(request_uri)
+    max_index = stored_cfg.get_index(request_uri)
+    if max_index is None:
+        ui_.status(NO_INFO_FMT % usk_hash)
+        return
+
+    insert_uri = str(stored_cfg.get_insert_uri(usk_hash))
+
+    # fix index
+    request_uri = get_usk_for_usk_version(request_uri, max_index)
+
+    ui_.status(INFO_FMT %
+               (usk_hash, max_index or -1, request_uri, insert_uri))
+
 def setup_tmp_dir(ui_, tmp):
     """ INTERNAL: Setup the temp directory. """
     tmp = os.path.expanduser(tmp)