Hi folks, So far, we've been tagging commits [1] that match builds that have been deployed in production, following semver [2] semantics: However, this approach has been sidestepping the Apache release vote protocol (VOTE threads). This means that we will *probably* have to delete these tags at some point, and revert our version number to its state at initial Apache import. (*Jake*: please correct me if i'm wrong on that.)
These tags are effectively leaking Twitter's deploy schedule. While this is not an issue for Twitter, the approach is Twitter-specific, and we should change to something that accommodates other installations. Our first thought was to move our tagging to a private repository, but Kevin pointed out that having tags reflecting known-stable SHAs (until we have formal releases) is useful. With that in mind, i propose that we continue this tagging practice until our first release, with a minor modification. Semver supports our situation in a way that Jake tells me can be compatible with Apache protocols: *A pre-release version MAY be denoted by appending a hyphen and a series of > dot separated identifiers immediately following the patch version*. > Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-]. > Identifiers MUST NOT be empty. Numeric identifiers MUST NOT include leading > zeroes. Pre-release versions have a lower precedence than the associated > normal version. A pre-release version indicates that the version is > unstable and might not satisfy the intended compatibility requirements as > denoted by its associated normal version. *Examples: 1.0.0-alpha, > 1.0.0-alpha.1, 1.0.0-0.3.7, 1.0.0-x.7.z.92*. (emphasis mine) Kevin's proposed tagging format is: $VER-devYYYMMDDRR (where RR is "%.2d" % num_releases_today) dev is proposed instead of snapshot because it matches PEP-440 [3] and is compatible with maven version number rules [4]. I'm interested in thougs people have on this. Please keep in mind that this is provisional, and to be halted or re-evaluated after our first release. [1] https://git-wip-us.apache.org/repos/asf?p=incubator-aurora.git;a=tags [2] http://semver.org [3] http://www.python.org/dev/peps/pep-0440/#developmental-releases [4] http://mojo.codehaus.org/versions-maven-plugin/version-rules.html -=Bill
