transaction: actually use tr.hookargs in pretxnclose

The 'tr.hookargs' is a dictionary containing all the arguments to be passed to
hooks. It is actually used for hooks now...

mercurial/localrepo.py

@@ -956,7 +956,7 b' class localrepository(object):'
             """will run pre-closing hooks"""
             pending = lambda: tr.writepending() and self.root or ""
             reporef().hook('pretxnclose', throw=True, pending=pending,
-                           xnname=desc)
+                           xnname=desc, **tr.hookargs)
 
         tr = transaction.transaction(rp, self.sopener, vfsmap,
                                      "journal",

tests/test-hook.t

@@ -23,7 +23,7 b' commit hooks can see env vars'
   pretxnopen hook: HG_TXNNAME=commit
   pretxncommit hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000 HG_PENDING=$TESTTMP/a
   0:cb9a9f314b8b
-  pretxnclose hook: HG_PENDING=$TESTTMP/a HG_XNNAME=commit
+  pretxnclose hook: HG_PENDING=$TESTTMP/a HG_PHASES_MOVED=1 HG_XNNAME=commit
   txnclose hook: HG_PHASES_MOVED=1 HG_TXNNAME=commit
   commit hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000
   commit.b hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000
@@ -218,7 +218,7 b' pushkey hook'
   searching for changes
   no changes found
   pretxnopen hook: HG_TXNNAME=bookmarks
-  pretxnclose hook: HG_PENDING=$TESTTMP/a HG_XNNAME=bookmarks
+  pretxnclose hook: HG_BOOKMARK_MOVED=1 HG_PENDING=$TESTTMP/a HG_XNNAME=bookmarks
   txnclose hook: HG_BOOKMARK_MOVED=1 HG_TXNNAME=bookmarks
   pushkey hook: HG_KEY=foo HG_NAMESPACE=bookmarks HG_NEW=0000000000000000000000000000000000000000 HG_RET=1
   exporting bookmark foo