I had a pull request [1] to "fix" version comparison for yum and rpm
packages, as the current behavior is far from what yum does. The PR's
more or less stalled waiting for me to rework it, but I feel pretty
strongly that before we implement flexible versioning like this, we need
to make sure version comparison is done right - not all package types
use semver, which seems to be the assumption that everything using the
Package type makes (for example, yum/rpm actually sorts "1.2.999"
*after* "1.2.11a").
my 2 cents:
- explicit version specification is a very good thing, if version
comparison is reliable and in step with the underlying package system.
I'd love to be able to specify ">= 1.2.3"
- implicit matches feel wrong to me... I'd be concerned that this would
break things for a lot of people. And unfortunately, the people most
likely to have things broken are the people who are already "scared" of
Puppet doing things they don't want, so they manually peg every package
to a specific version and tell their hesitant management that everything
will be fine...
-Jason
[1] https://github.com/puppetlabs/puppet/pull/2262
On 02/11/2014 06:44 PM, Kylo Ginsberg wrote:
A recent pull request to puppet [1], in support of richer version
matching for the 'pkg' package provider, led me to discover some older
proposals, e.g. [2], for allowing flexible version matches, e.g. to
allow something like:
package { 'foo': ensure => '> 1.2.3' }
The issues aren't identical -- the current pull is more about implicit
matches against newer available versions, whereas the older proposal
is about explicitly specifying version ranges -- but they share the
intent to allow for flexible version matching for packages.
So, I'd like to get input on this topic. E.g. is something along these
lines desirable, or is it seen as too risky (e.g. due to version
drift)? And what packaging tools can effectively support flexible
version matching? Is there a common core of this functionality which
we could meaningfully define across a useful set of packaging tools?
Thanks!
[1]: https://github.com/puppetlabs/puppet/pull/2200
[2]: https://tickets.puppetlabs.com/browse/PUP-1519
--
Kylo Ginsberg
[email protected] <mailto:[email protected]>
*Join us at PuppetConf 2014, September 23-24 in San Francisco* -
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