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slapos.buildout
Commit c13d5c58 authored by Jim Fulton's avatar Jim Fulton
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Added newest keyword parameter to the install and build functions to 

allow for getting less than the newest but still getting what's
necessary.
parent f752e932
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Showing with 439 additions and 341 deletions
src/zc/buildout/easy_install.py
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src/zc/buildout/easy_install.txt
View file @ c13d5c58
......@@ -21,7 +21,10 @@ level that is similar to easy_install, with a few exceptions:
- Distutils options for building extensions can be passed.
The easy_install module provides a method, install, for installing one
Distribution installation
-------------------------
The easy_install module provides a function, install, for installing one
or more packages and their dependencies. The install function takes 2
positional arguments:
......@@ -68,6 +71,13 @@ working_set
you to call install multiple times, if necessary, to gather
multiple sets of requirements.
newest
A boolian value indicating whether to search for new distributions
when already-installed distributions meet the requirement. When
this is true, the default, and when the destination directory is
not None, then the install function will search for the newest
distributions that satisfy the requirements.
The install method returns a working set containing the distributions
needed to meet the given requirements.
......@@ -111,8 +121,17 @@ And the actual eggs were added to the eggs directory.
- demo-0.2-py2.4.egg
- demoneeded-1.1-py2.4.egg
If we ask for the demo distribution without a version restriction,
we'll get the newer version:
If we remove the version restriction on demo, but specify a false
value for newest, no new didstributions will be installed:
>>> ws = zc.buildout.easy_install.install(
... ['demo'], dest, links=[link_server], index=link_server+'index/',
... newest=False)
>>> ls(dest)
- demo-0.2-py2.4.egg
- demoneeded-1.1-py2.4.egg
If we leave off the newst option, we'll get an update for demo:
>>> ws = zc.buildout.easy_install.install(
... ['demo'], dest, links=[link_server], index=link_server+'index/')
......@@ -480,9 +499,13 @@ path
A list of additional directories to search for locally-installed
distributions.
always_unzip
A flag indicating that newly-downloaded distributions should be
directories even if they could be installed as zip files.
newest
A boolian value indicating whether to search for new distributions
when already-installed distributions meet the requirement. When
this is true, the default, and when the destination directory is
not None, then the install function will search for the newest
distributions that satisfy the requirements.
Our link server included a source distribution that includes a simple
extension, extdemo.c::
......@@ -534,6 +557,57 @@ Now if we look in our destination directory, we see we have an extdemo egg:
d demoneeded-1.1-py2.4.egg
d extdemo-1.4-py2.4-unix-i686.egg
Let's update our link server with a new version of extdemo:
>>> update_extdemo()
>>> print get(link_server),
<html><body>
<a href="demo-0.1-py2.4.egg">demo-0.1-py2.4.egg</a><br>
<a href="demo-0.2-py2.4.egg">demo-0.2-py2.4.egg</a><br>
<a href="demo-0.3-py2.4.egg">demo-0.3-py2.4.egg</a><br>
<a href="demoneeded-1.0.zip">demoneeded-1.0.zip</a><br>
<a href="demoneeded-1.1.zip">demoneeded-1.1.zip</a><br>
<a href="extdemo-1.4.zip">extdemo-1.4.zip</a><br>
<a href="extdemo-1.5.zip">extdemo-1.5.zip</a><br>
<a href="index/">index/</a><br>
<a href="other-1.0-py2.4.egg">other-1.0-py2.4.egg</a><br>
</body></html>
The easy_install caches information about servers to reduce network
access. To see the update, we have to call the clear_index_cache
function to clear the index cache:
>>> zc.buildout.easy_install.clear_index_cache()
If we run build with newest set to False, we won't get an update:
>>> zc.buildout.easy_install.build(
... 'extdemo', dest,
... {'include-dirs': os.path.join(sample_buildout, 'include')},
... links=[link_server], index=link_server+'index/',
... newest=False)
'/sample-install/extdemo-1.4-py2.4-linux-i686.egg'
>>> ls(dest)
d demo-0.3-py2.4.egg
d demoneeded-1.1-py2.4.egg
d extdemo-1.4-py2.4-unix-i686.egg
But if we run it with the default True setting for newest, then we'll
get an updated egg:
>>> zc.buildout.easy_install.build(
... 'extdemo', dest,
... {'include-dirs': os.path.join(sample_buildout, 'include')},
... links=[link_server], index=link_server+'index/')
'/sample-install/extdemo-1.5-py2.4-unix-i686.egg'
d demo-0.3-py2.4.egg
d demoneeded-1.1-py2.4.egg
d extdemo-1.4-py2.4-unix-i686.egg
d extdemo-1.5-py2.4-unix-i686.egg
Handling custom build options for extensions in develop eggs
------------------------------------------------------------
......@@ -586,6 +660,7 @@ egg link:
d demo-0.3-py2.4.egg
d demoneeded-1.1-py2.4.egg
d extdemo-1.4-py2.4-linux-i686.egg
d extdemo-1.5-py2.4-linux-i686.egg
- extdemo.egg-link
And that the source directory contains the compiled extension:
......
src/zc/buildout/tests.py
View file @ c13d5c58
......@@ -1047,19 +1047,22 @@ initextdemo(void)
extdemo_setup_py = """
from distutils.core import setup, Extension
setup(name = "extdemo", version = "1.4", url="http://www.zope.org",
setup(name = "extdemo", version = "%s", url="http://www.zope.org",
author="Demo", author_email="demo@demo.com",
ext_modules = [Extension('extdemo', ['extdemo.c'])],
)
"""
def add_source_dist(test):
def add_source_dist(test, version=1.4):
tmp = test.globs['extdemo'] = test.globs['tmpdir']('extdemo')
if 'extdemo' not in test.globs:
test.globs['extdemo'] = test.globs['tmpdir']('extdemo')
tmp = test.globs['extdemo']
write = test.globs['write']
try:
write(tmp, 'extdemo.c', extdemo_c);
write(tmp, 'setup.py', extdemo_setup_py);
write(tmp, 'setup.py', extdemo_setup_py % version);
write(tmp, 'README', "");
write(tmp, 'MANIFEST.in', "include *.c\n");
test.globs['sdist'](tmp, test.globs['sample_eggs'])
......@@ -1075,6 +1078,8 @@ def easy_install_SetUp(test):
add_source_dist(test)
test.globs['link_server'] = test.globs['start_server'](
test.globs['sample_eggs'])
test.globs['update_extdemo'] = lambda : add_source_dist(test, 1.5)
egg_parse = re.compile('([0-9a-zA-Z_.]+)-([0-9a-zA-Z_.]+)-py(\d[.]\d).egg$'
).match
......
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