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A new SCons checkpoint release, 3.0.6.alpha.yyyymmdd, is now available
on the SCons download page:
https://scons.org/pages/download.html
XXX The primary purpose of this release ... XXX
A SCons "checkpoint release" is intended to provide early access to
new features so they can be tested in the field before being released
for adoption by other software distributions.
Note that a checkpoint release is developed using the same test-driven
development methodology as all SCons releases. Existing SCons
functionality should all work as it does in previous releases (except
for any changes identified in the release notes) and early adopters
should be able to use a checkpoint release safely for production work
with existing SConscript files. If not, it represents not only a bug
in SCons but also a hole in the regression test suite, and we want to
hear about it.
New features may be more lightly tested than in past releases,
especially as concerns their interaction with all of the other
functionality in SCons. We are especially interested in hearing bug
reports about new functionality.
We do not recommend that downstream distributions (Debian, Fedora,
etc.) package a checkpoint release, mainly to avoid confusing the
"public" release numbering with the long checkpoint release names.
Here is a summary of the changes since 1.3.0:
NEW FUNCTIONALITY
- Added variable TEMPFILEARGJOIN to specify how to join arguments written
to temp files used when command lines exceed MAXLINELENGTH when the
command uses $TEMPFILE{...}
DEPRECATED FUNCTIONALITY
- List anything that's been deprecated since the last release
CHANGED/ENHANCED EXISTING FUNCTIONALITY
- Fix performance degradation for MD5-timestamp decider. NOTE: This changes the Decider() function arguments.
From:
def my_decider(dependency, target, prev_ni):
To:
def my_decider(dependency, target, prev_ni, repo_node):
Where repo_node is the repository (or other) node to use to check if the node is out of date instead of dependency.
- Enhanced --debug=explain output. Now the separate components of the dependency list are split up
as follows:
scons: rebuilding `file3' because:
the dependency order changed:
->Sources
Old:xxx New:zzz
Old:yyy New:yyy
Old:zzz New:xxx
->Depends
->Implicit
Old:/usr/bin/python New:/usr/bin/python
- Changed: Pseudo-builders now inherit OverrideEnvironments. For
example when calling a pseudo-builder from another
pseudo-builder the override variables passed to the first
pseudo-builder call had to be explicitly passed on to the
internal pseudo-builder call. Now the second pseudo-builder call
will automatically inherit these override values.
FIXES
- List fixes of outright bugs
IMPROVEMENTS
- List improvements that wouldn't be visible to the user in the
documentation: performance improvements (describe the circumstances
under which they would be observed), or major code cleanups
PACKAGING
- List changes in the way SCons is packaged and/or released
DOCUMENTATION
- List any significant changes to the documentation (not individual
typo fixes, even if they're mentioned in src/CHANGES.txt to give
the contributor credit)
DEVELOPMENT
- List visible changes in the way SCons is developed
Thanks to CURLY, LARRY, and MOE for their contributions to this release.
Contributors are listed alphabetically by their last name.
__COPYRIGHT__
__FILE__ __REVISION__ __DATE__ __DEVELOPER__
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