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httprepo: use caps instead of between for compat check
authorPeter Arrenbrecht <peter.arrenbrecht@gmail.com>
Sat, 12 Mar 2011 18:29:02 +0100
changeset 13603 395a84f78736
parent 13602 54b198fe9768
child 13604 3f6a4579f803
httprepo: use caps instead of between for compat check We usually query the capabilities at some point anyway so this way the first roundtrip actually does useful work.
mercurial/httprepo.py file | annotate | diff | comparison | revisions
tests/test-http-proxy.t file | annotate | diff | comparison | revisions
tests/test-schemes.t file | annotate | diff | comparison | revisions 
--- a/mercurial/httprepo.py	Sat Mar 12 18:48:30 2011 +0100
+++ b/mercurial/httprepo.py	Sat Mar 12 18:29:02 2011 +0100
@@ -52,10 +52,13 @@
 
     # look up capabilities only when needed
 
+    def _fetchcaps(self):
+        self.caps = set(self._call('capabilities').split())
+
     def get_caps(self):
         if self.caps is None:
             try:
-                self.caps = set(self._call('capabilities').split())
+                self._fetchcaps()
             except error.RepoError:
                 self.caps = set()
             self.ui.debug('capabilities: %s\n' %
@@ -195,7 +198,13 @@
             inst = httpsrepository(ui, path)
         else:
             inst = httprepository(ui, path)
-        inst.between([(nullid, nullid)])
+        try:
+            # Try to do useful work when checking compatibility.
+            # Usually saves a roundtrip since we want the caps anyway.
+            inst._fetchcaps()
+        except error.RepoError:
+            # No luck, try older compatibility check.
+            inst.between([(nullid, nullid)])
         return inst
     except error.RepoError:
         ui.note('(falling back to static-http)\n')
--- a/tests/test-http-proxy.t	Sat Mar 12 18:48:30 2011 +0100
+++ b/tests/test-http-proxy.t	Sat Mar 12 18:29:02 2011 +0100
@@ -98,27 +98,22 @@
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cat proxy.log
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=between&pairs=0000000000000000000000000000000000000000-0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=stream_out HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=between&pairs=0000000000000000000000000000000000000000-0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=heads HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=changegroup&roots=0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=between&pairs=0000000000000000000000000000000000000000-0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=heads HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=changegroup&roots=0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=between&pairs=0000000000000000000000000000000000000000-0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=heads HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=changegroup&roots=0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=between&pairs=0000000000000000000000000000000000000000-0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=heads HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=changegroup&roots=0000000000000000000000000000000000000000 HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=listkeys&namespace=bookmarks HTTP/1.1" - - (glob)
 
--- a/tests/test-schemes.t	Sat Mar 12 18:48:30 2011 +0100
+++ b/tests/test-schemes.t	Sat Mar 12 18:29:02 2011 +0100
@@ -25,7 +25,7 @@
 
   $ hg incoming --debug parts://localhost
   using http://localhost:$HGPORT/
-  sending between command
+  sending capabilities command
   comparing with parts://localhost
   sending heads command
   searching for changes
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