changeset 249:619e775aa7f9

import and startup cleanups -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 import and startup cleanups add commands:run() add copyright notice to commands eliminate/reorganize imports to speed up start time: 0.5b: $ time bash -c 'for i in `seq 100`; do ~/bin/hg > /dev/null; done' real 0m7.718s user 0m6.719s sys 0m0.794s new: $ time bash -c 'for i in `seq 100`; do hg > /dev/null; done' real 0m2.171s user 0m1.684s sys 0m0.444s just python: $ time bash -c 'for i in `seq 100`; do python -c pass; done' real 0m0.988s user 0m0.771s sys 0m0.207s Ignoring the fixed cost of loading the Python interpreter, we're 5.6 times faster. With the Python load time, we're still 3.5 times faster. manifest hash: acce5882a55c76eb165316f5741724c8ce4ef587 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCoihAywK+sNU5EO8RAqMdAJwMe6Ur0R9G6jjayNa5hH2C3c4k/gCeIYvc N178vaWWGciX9zq+g5qCAls= =buhv -----END PGP SIGNATURE-----
author mpm@selenic.com
date Sat, 04 Jun 2005 14:16:32 -0800
parents b7645b3c86ff
children 45ee7c4cae4f
files hg mercurial/commands.py mercurial/hg.py mercurial/mdiff.py mercurial/ui.py
diffstat 5 files changed, 26 insertions(+), 16 deletions(-) [+]
line wrap: on
line diff
--- a/hg	Sat Jun 04 13:45:31 2005 -0800
+++ b/hg	Sat Jun 04 14:16:32 2005 -0800
@@ -8,16 +8,7 @@
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
-# the psyco compiler makes commits a bit faster
-# and makes changegroup merge about 20 times slower!
-# try:
-#    import psyco
-#    psyco.full()
-# except:
-#    pass
-
-import sys
 from mercurial import commands
 
-sys.exit(commands.dispatch(sys.argv[1:]))
+commands.run()
 
--- a/mercurial/commands.py	Sat Jun 04 13:45:31 2005 -0800
+++ b/mercurial/commands.py	Sat Jun 04 14:16:32 2005 -0800
@@ -1,4 +1,11 @@
-import os, re, traceback, sys, signal, time, mdiff
+# commands.py - command processing for mercurial
+#
+# Copyright 2005 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms
+# of the GNU General Public License, incorporated herein by reference.
+
+import os, re, sys, signal, time, mdiff
 from mercurial import fancyopts, ui, hg
 
 class UnknownCommand(Exception): pass
@@ -522,6 +529,9 @@
 def catchterm(*args):
     raise SignalInterrupt
 
+def run():
+    sys.exit(dispatch(sys.argv[1:]))
+
 def dispatch(args):
     options = {}
     opts = [('v', 'verbose', None, 'verbose'),
@@ -562,6 +572,7 @@
     except KeyboardInterrupt:
         u.warn("interrupted!\n")
     except TypeError, inst:
+        import traceback
         # was this an argument error?
         tb = traceback.extract_tb(sys.exc_info()[2])
         if len(tb) > 2: # no
--- a/mercurial/hg.py	Sat Jun 04 13:45:31 2005 -0800
+++ b/mercurial/hg.py	Sat Jun 04 14:16:32 2005 -0800
@@ -5,9 +5,8 @@
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
-import sys, struct, sha, socket, os, time, re, urllib2, tempfile
-import urllib
-from mercurial import byterange, lock
+import sys, struct, os
+from mercurial import lock
 from mercurial.transaction import *
 from mercurial.revlog import *
 from difflib import SequenceMatcher
@@ -139,6 +138,7 @@
 
     def add(self, manifest, list, desc, transaction, p1=None, p2=None,
                   user=None, date=None):
+        import socket, time
         user = (user or
                 os.environ.get("HGUSER") or
                 os.environ.get("EMAIL") or
@@ -315,6 +315,7 @@
             self.dirstate = dirstate(self.opener, ui, self.root)
 
     def ignore(self, f):
+        import re
         if self.ignorelist is None:
             self.ignorelist = []
             try:
@@ -966,6 +967,8 @@
 
     def merge3(self, fn, my, other):
         """perform a 3-way merge in the working directory"""
+
+        import tempfile
         
         def temp(prefix, node):
             pre = "%s~%s." % (os.path.basename(fn), prefix)
@@ -1177,10 +1180,14 @@
 
 def repository(ui, path=None, create=0):
     if path and path[:7] == "http://":
+        import urllib, urllib2
         return remoterepository(ui, path)
     if path and path[:5] == "hg://":
+        import urllib, urllib2
         return remoterepository(ui, path.replace("hg://", "http://"))
     if path and path[:11] == "old-http://":
+        import urllib, urllib2
+        from mercurial import byterange
         return localrepository(ui, path.replace("old-http://", "http://"))
     else:
         return localrepository(ui, path, create)
--- a/mercurial/mdiff.py	Sat Jun 04 13:45:31 2005 -0800
+++ b/mercurial/mdiff.py	Sat Jun 04 14:16:32 2005 -0800
@@ -5,7 +5,7 @@
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
-import difflib, struct, mmap
+import difflib, struct
 from mercurial.mpatch import *
 
 def unidiff(a, ad, b, bd, fn):
--- a/mercurial/ui.py	Sat Jun 04 13:45:31 2005 -0800
+++ b/mercurial/ui.py	Sat Jun 04 14:16:32 2005 -0800
@@ -5,7 +5,7 @@
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
-import os, tempfile, sys, re
+import os, sys, re
 
 class ui:
     def __init__(self, verbose=False, debug=False, quiet=False,
@@ -37,6 +37,7 @@
     def debug(self, *msg):
         if self.debugflag: self.write(*msg)
     def edit(self, text):
+        import tempfile
         (fd, name) = tempfile.mkstemp("hg")
         f = os.fdopen(fd, "w")
         f.write(text)