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Create python sdists from tags

Project description

tags2sdists

Tags2sdists creates python sdists from tags into a structure that can serve as a company-internal pypi (python package index).

Basic operation

Tags2sdists looks at two directories:

  • A source directory (“CHECKOUTDIR”) with checkouts. Every checkout (svn trunk checkout, git/hg clone) is examined for tags according to that version control system.
  • A target directory (“SDISTDIR”) where per-package directories are made with sdists named like PACKAGENAME-1.2.tar.gz in it.

Those two directories are kept in sync by checking for packages/tags that are available in the version control system but that are missing in the target directory. If missing, an “sdist” (.tar.gz source distribution) is generated and placed in the target directory.

Usage

Tags2sdists provides the tags2sdists command:

Usage: tags2sdists CHECKOUTDIR SDISTDIR
    CHECKOUTDIR: directory with checkouts
    SDISTDIR: directory with sdist package directories

Options:
  -h, --help     show this help message and exit
  -v, --verbose  Show debug output
  -q, --quiet    Show minimal output

Setup

Installing tags2sdists itself is as simple as pip install tags2sdists or easy_install tags2sdists or including it in your buildout in the regular manner.

Next you need the CHECKOUTDIR and SDISTDIR directories.

CHECKOUTDIR: you need a directory with checkouts. So doing it by hand is fine. But when you use svn, a directory with svn:externals is probably handiest. For everything else (and also for svn), checkoutmanager is the thing I’d use. Make a config file (checkoutmanager.cfg) looking like this:

[internalprojects]
vcs = git
basedir = /srv/packages/var/checkouts/
checkouts =
    git@github.com:lizardsystem/nensskel.git
    git@github.com:lizardsystem/lizard-ui.git
    git@github.com:lizardsystem/tags2sdists.git

And set up a cron job that runs checkoutmanager --configfile=YOURCONFIGFILE, it’ll update the checkouts in the base dir you configured. (In that same cronjob, fire up tags2sdists afterwards).

SDISTDIR: just a directory somewhere will do. You’ll get a pypi-like directory structure in there.

A structure like generated with tags2sdists is a perfect index for easy_install and buildout if you let apache host it. Only problem: you can only have one index (note: pip apparently supports multiple indexes). You can solve this problem by having apache redirect you to pypi when something is not found.

Here’s an example apache config snippet:

# Allow indexing
Options +Indexes
IndexOptions FancyIndexing VersionSort

# Start of rewriterules to use our own var/private/* packages
# when available and to redirect to pypi if not.
RewriteEngine On
# Use our robots.txt:
RewriteRule ^/robots.txt - [L]
# Use our apache's icons:
RewriteRule ^/icons/.* - [L]
# We want OUR index.  Specified in a weird way as apache
# searches in a weird way for index.htm index.html index.php etc.
RewriteRule ^/index\..* - [L]

# Use our var/private/PROJECTNAME if available,
# redirect to pypi otherwise:
RewriteCond /path/on/server/var/private/$1 !-f
RewriteCond /path/on/server/var/private/$1 !-d
RewriteRule ^/([^/]+)/?$ http://pypi.python.org/pypi/$1/ [P,L]

# Use our var/private/PROJECTNAME/project-0.1.tar.gz if available,
# redirect to pypi otherwise:
RewriteCond /path/on/server/var/private/$1 !-d
RewriteRule ^/([^/]+)/([^/]+)$ http://pypi.python.org/pypi/$1/$2 [P,L]

Using the apache-served index

You can use such a custom apache-served index in two ways. Easy_install has a -i option for passing along an index:

$> easy_install -i http://packages.my.server/ zest.releaser

In buildout, you can set it like this:

[buildout]
index = http://packages.my.server/
parts =
    ...

Development

Credits

Changelog of tags2sdists

0.3 (2011-10-12)

  • Added documentation.
  • Renamed script from make_sdists to tags2sdists.

0.2 (2011-10-11)

  • Added script that combines the sdist tarball creation with the target directory parsing and that generates all the necessary tarballs.
  • Added creation (via zest.releaser) of a single sdist tarball.

0.1 (2011-10-10)

  • Added parsing of a target directory with sdists.
  • Initial library skeleton created by nensskel.

Project details


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