view contrib/wix/README.txt @ 25527:262e6ad93885

phases: really fix native phase computation

For some reason (probably rebase issue, leprechaun or badly resolved .rej)
1635579f9baf contains only half of the emailed patches and do not fix the bug.
This patch adds the other half and enable the sweet native computation for real.

As expected this provide massive speedup along the board.

revset #0: not public()
   plain         first
0) 0.011960      0.010523
1) 0.000465   3% 0.000492   4%

revset #1: (tip~1000::) - public()
   plain         first
0) 0.025700      0.025169
1) 0.002864  11% 0.001899   7%

revset #2: not public() and branch("default")
   plain         first
0) 0.022842      0.020863
1) 0.011418  49% 0.010948   52%

However, it has a less impact (even bad) on first result time in simple
situation.  This comes from the overhead of building the set and filtering it.
This is especially true on my Mercurial repository (used here) where about 1/3
of the changesets are non public and hidden. This could be mitigated by a
caching of the set and a better usage of smartset in '_notpublic'. (But this
won't happen in this patch because the win is massive everywhere else).

revset #0: not public()
   last
0) 0.000081
1) 0.000493 x6.1 <-- bad impact

revset #1: (tip~1000::) - public()
   last
0) 0.013966
1) 0.002737  19%

revset #2: not public() and branch("default")
   last
0) 0.011021
1) 0.011038

The effect mostly disappear when the number of non-public changesets is small
and/or the repo get bigger. Result for Mozilla central:

Mozilla

revset #0: not public()
   plain         first         last
0) 0.092787      0.084094      0.000080
1) 0.000054   0% 0.000083   0% 0.000083

revset #1: (tip~1000::) - public()
   plain         first         last
0) 0.215607      0.183996      0.124962
1) 0.031620  14% 0.006616   3% 0.031168  24%

revset #2: not public() and branch("default")
   plain         first         last
0) 0.092626      0.082687      0.000162
1) 0.000139   0% 0.000165   0% 0.000167

WiX installer source files
==========================

The files in this folder are used by the thg-winbuild [1] package
building architecture to create a Mercurial MSI installer.   These files
are versioned within the Mercurial source tree because the WXS files
must kept up to date with distribution changes within their branch.  In
other words, the default branch WXS files are expected to diverge from
the stable branch WXS files.  Storing them within the same repository is
the only sane way to keep the source tree and the installer in sync.

The MSI installer builder uses only the mercurial.ini file from the
contrib/win32 folder, the contents of which have been historically used
to create an InnoSetup based installer.  The rest of the files there are
ignored.

The MSI packages built by thg-winbuild require elevated (admin)
privileges to be installed due to the installation of MSVC CRT libraries
under the C:\WINDOWS\WinSxS folder.  Thus the InnoSetup installers may
still be useful to some users.

To build your own MSI packages, clone the thg-winbuild [1] repository
and follow the README.txt [2] instructions closely.  There are fewer
prerequisites for a WiX [3] installer than an InnoSetup installer, but
they are more specific.

Direct questions or comments to Steve Borho <[e-mail]>

[1] http://bitbucket.org/tortoisehg/thg-winbuild
[2] http://bitbucket.org/tortoisehg/thg-winbuild/src/tip/README.txt
[3] http://wix.sourceforge.net/