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Namespace PYPI_MIRROR_URL vars with DIB

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We have a good pattern of namespacing env vars with DIB_. Add support
for DIB_PYPI_MIRROR_URL* and maintain backwards compat support.

Change-Id: I434c9d1b14cd571b20754c9ad7cd64c936f8399a
This commit is contained in:
Gregory Haynes 2015-02-05 16:30:25 -08:00 committed by vigneshvar
parent ed0ac6d617
commit 76ddfc439f
2 changed files with 22 additions and 14 deletions
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24
elements/pypi/README.rst
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@ -16,18 +16,18 @@ To disable the pypi.python.org index without using --offline (e.g. when working
behind a corporate firewall that prohibits pypi.python.org) set behind a corporate firewall that prohibits pypi.python.org) set
DIB\_NO\_PYPI\_PIP to any non-empty value. DIB\_NO\_PYPI\_PIP to any non-empty value.
To use an arbitrary mirror set PYPI\_MIRROR\_URL=http[s]://somevalue/ To use an arbitrary mirror set DIB\_PYPI\_MIRROR\_URL=http[s]://somevalue/
Additional mirrors can be added by exporting PYPI\_MIRROR\_URL\_1=... etc. Only Additional mirrors can be added by exporting DIB\_PYPI\_MIRROR\_URL\_1=... etc.
the one mirror can be used by easy-install, but since wheels need to be in the Only the one mirror can be used by easy-install, but since wheels need to be in
first mirror to be used, the last listed mirror is used as the pydistutils the first mirror to be used, the last listed mirror is used as the pydistutils
index. NB: The sort order for these variables is a simple string sort - if index. NB: The sort order for these variables is a simple string sort - if you
you have more than 9 additional mirrors, some care will be needed. have more than 9 additional mirrors, some care will be needed.
A typical use of this element is thus: A typical use of this element is thus:
export PYPI\_MIRROR\_URL=http://site/pypi/Ubuntu-13.10 export DIB\_PYPI\_MIRROR\_URL=http://site/pypi/Ubuntu-13.10
export PYPI\_MIRROR\_URL\_1=http://site/pypi/ export DIB\_PYPI\_MIRROR\_URL\_1=http://site/pypi/
export PYPI\_MIRROR\_URL\_2=file:///tmp/pypi export DIB\_PYPI\_MIRROR\_URL\_2=file:///tmp/pypi
[devpi-server](https://git.openstack.org/cgit/openstack-infra/pypi-mirro://pypi.python.org/pypi/devpi-server) [devpi-server](https://git.openstack.org/cgit/openstack-infra/pypi-mirro://pypi.python.org/pypi/devpi-server)
can be useful in making a partial PyPI mirror suitable for building images. For can be useful in making a partial PyPI mirror suitable for building images. For
@ -41,9 +41,9 @@ instance:
* Re-export your variables to point at the new mirror: * Re-export your variables to point at the new mirror:
export PYPI\_MIRROR\_URL=http://machinename:3141/ export DIB\_PYPI\_MIRROR\_URL=http://machinename:3141/
unset PYPI\__MIRROR\_URL\_1 unset DIB\_PYPI\__MIRROR\_URL\_1
unset PYPI\__MIRROR\_URL\_1 unset DIB\_PYPI\__MIRROR\_URL\_2
The next time packages are installed, they'll be cached on the local devpi The next time packages are installed, they'll be cached on the local devpi
server; subsequent runs pointed at the same mirror will use the local cache if server; subsequent runs pointed at the same mirror will use the local cache if

12
elements/pypi/pre-install.d/00-configure-pypi-mirror
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@ -21,8 +21,16 @@ def main():
home = os.path.expanduser("~") home = os.path.expanduser("~")
backup_configs(home) backup_configs(home)
indices = [] indices = []
if os.environ.get('PYPI_MIRROR_URL'): if (os.environ.get('DIB_PYPI_MIRROR_URL') or
candidates = [k for k in os.environ if k.startswith('PYPI_MIRROR_URL')] os.environ.get('PYPI_MIRROR_URL')):
candidates = [k for k in os.environ if
k.startswith('DIB_PYPI_MIRROR_URL')]
back_compat = [k for k in os.environ if
k.startswith('PYPI_MIRROR_URL')]
if len(back_compat) > 0:
print('DEPRECATION WARNING: Please use DIB_PYPI_MIRROR_URL* rather'
' than PYPI_MIRROR_URL*')
candidates += back_compat
indices = list(map(os.environ.get, sorted(candidates))) indices = list(map(os.environ.get, sorted(candidates)))
else: else:
indices = ['file:///tmp/pypi'] indices = ['file:///tmp/pypi']