Commit 5e9aa510 authored by tlotze's avatar tlotze

two changes that make the handling of the download cache match how buildout

does it for easy-install:

- require the download cache (but not namespace directories) to be an
  existing directory in order to catch configuration bugs

- made relative download cache paths refer to the buildout directory


git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@102730 62d5b8a3-27da-0310-9561-8e5933582275
parent b7170549
...@@ -56,6 +56,7 @@ class Download(object): ...@@ -56,6 +56,7 @@ class Download(object):
def __init__(self, options={}, cache=-1, namespace=None, def __init__(self, options={}, cache=-1, namespace=None,
offline=-1, fallback=False, hash_name=False, logger=None): offline=-1, fallback=False, hash_name=False, logger=None):
self.directory = options.get('directory', '')
self.cache = cache self.cache = cache
if cache == -1: if cache == -1:
self.cache = options.get('download-cache') self.cache = options.get('download-cache')
...@@ -69,9 +70,14 @@ class Download(object): ...@@ -69,9 +70,14 @@ class Download(object):
self.logger = logger or logging.getLogger('zc.buildout') self.logger = logger or logging.getLogger('zc.buildout')
@property @property
def cache_dir(self): def download_cache(self):
if self.cache is not None: if self.cache is not None:
return os.path.join(realpath(self.cache), self.namespace or '') return realpath(os.path.join(self.directory, self.cache))
@property
def cache_dir(self):
if self.download_cache is not None:
return os.path.join(self.download_cache, self.namespace or '')
def __call__(self, url, md5sum=None, path=None): def __call__(self, url, md5sum=None, path=None):
"""Download a file according to the utility's configuration. """Download a file according to the utility's configuration.
...@@ -98,9 +104,15 @@ class Download(object): ...@@ -98,9 +104,15 @@ class Download(object):
but will not remove the copy in that case. but will not remove the copy in that case.
""" """
if not os.path.exists(self.download_cache):
raise zc.buildout.UserError(
'The directory:\n'
'%r\n'
"to be used as a download cache doesn't exist.\n"
% self.download_cache)
cache_dir = self.cache_dir cache_dir = self.cache_dir
if not os.path.exists(cache_dir): if not os.path.exists(cache_dir):
os.makedirs(cache_dir) os.mkdir(cache_dir)
cache_key = self.filename(url) cache_key = self.filename(url)
cached_path = os.path.join(cache_dir, cache_key) cached_path = os.path.join(cache_dir, cache_key)
......
...@@ -254,6 +254,15 @@ ChecksumError: MD5 checksum mismatch downloading 'http://localhost/foo.txt' ...@@ -254,6 +254,15 @@ ChecksumError: MD5 checksum mismatch downloading 'http://localhost/foo.txt'
>>> remove(path) >>> remove(path)
Finally, let's see what happens if the download cache to be used doesn't exist
as a directory in the file system yet:
>>> Download(cache=join(cache, 'non-existent'))(server_url+'foo.txt')
Traceback (most recent call last):
UserError: The directory:
'/tmp/tmpZ2cwCfbuildoutSetUp/_TEST_/download-cache/non-existent'
to be used as a download cache doesn't exist.
Using namespace sub-directories of the download cache Using namespace sub-directories of the download cache
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...@@ -453,6 +462,19 @@ option: ...@@ -453,6 +462,19 @@ option:
>>> print download.cache_dir >>> print download.cache_dir
/download-cache/cmmi /download-cache/cmmi
If the ``download-cache`` option specifies a relative path, it is understood
relative to the current working directory, or to the buildout directory if
that is given:
>>> download = Download({'download-cache': 'relative-cache'})
>>> print download.cache_dir
/sample-buildout/relative-cache/
>>> download = Download({'directory': join(sample_buildout, 'root'),
... 'download-cache': 'relative-cache'})
>>> print download.cache_dir
/sample-buildout/root/relative-cache/
Keyword parameters take precedence over the corresponding options: Keyword parameters take precedence over the corresponding options:
>>> download = Download({'download-cache': cache}, cache=None) >>> download = Download({'download-cache': cache}, cache=None)
......
...@@ -66,6 +66,7 @@ download cache for it. The configuration cache we specify will be created when ...@@ -66,6 +66,7 @@ download cache for it. The configuration cache we specify will be created when
running buildout and the base.cfg file will be put in it (with the file name running buildout and the base.cfg file will be put in it (with the file name
being a hash of the complete URL): being a hash of the complete URL):
>>> mkdir('cache')
>>> write('buildout.cfg', """\ >>> write('buildout.cfg', """\
... [buildout] ... [buildout]
... extends = %sbase.cfg ... extends = %sbase.cfg
...@@ -166,6 +167,8 @@ bases, using different caches: ...@@ -166,6 +167,8 @@ bases, using different caches:
>>> mkdir('home') >>> mkdir('home')
>>> mkdir('home', '.buildout') >>> mkdir('home', '.buildout')
>>> mkdir('cache')
>>> mkdir('user-cache')
>>> os.environ['HOME'] = join(sample_buildout, 'home') >>> os.environ['HOME'] = join(sample_buildout, 'home')
>>> write('home', '.buildout', 'default.cfg', """\ >>> write('home', '.buildout', 'default.cfg', """\
... [buildout] ... [buildout]
......
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