Update 3.6 to 3.6.0b3 and refactor update.sh to handle pre-releases in a saner manner

[tianon]

Closes #156

I've intentionally left the PIP update/discussion to #154 (since it's orthogonal to this bump)

[tianon]

$ ./generate-stackbrew-library.sh
# this file is generated via https://github.com/docker-library/python/blob/b16ff405101a9f6c6540fb3467ca25baa9610174/generate-stackbrew-library.sh

Maintainers: Tianon Gravi <[email protected]> (@tianon),
             Joseph Ferguson <[email protected]> (@yosifkit)
GitRepo: https://github.com/docker-library/python.git

Tags: 2.7.12, 2.7, 2
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 2.7

Tags: 2.7.12-slim, 2.7-slim, 2-slim
GitCommit: 6b24d8cd0ad4c5a01874d094d92cd79518b3d490
Directory: 2.7/slim

Tags: 2.7.12-alpine, 2.7-alpine, 2-alpine
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 2.7/alpine

Tags: 2.7.12-wheezy, 2.7-wheezy, 2-wheezy
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 2.7/wheezy

Tags: 2.7.12-onbuild, 2.7-onbuild, 2-onbuild
GitCommit: 7663560df7547e69d13b1b548675502f4e0917d1
Directory: 2.7/onbuild

Tags: 2.7.12-windowsservercore, 2.7-windowsservercore, 2-windowsservercore
GitCommit: 1ad743decae71db424840812eb8dd49557aed9d0
Directory: 2.7/windows/windowsservercore
Constraints: windowsservercore

Tags: 3.3.6, 3.3
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 3.3

Tags: 3.3.6-slim, 3.3-slim
GitCommit: 6b24d8cd0ad4c5a01874d094d92cd79518b3d490
Directory: 3.3/slim

Tags: 3.3.6-alpine, 3.3-alpine
GitCommit: 83b8e044aa38ab97b5427a9591e0537464e976e6
Directory: 3.3/alpine

Tags: 3.3.6-wheezy, 3.3-wheezy
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 3.3/wheezy

Tags: 3.3.6-onbuild, 3.3-onbuild
GitCommit: 9a9021f2134d953165b31d98cacb95aa34076f90
Directory: 3.3/onbuild

Tags: 3.4.5, 3.4
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 3.4

Tags: 3.4.5-slim, 3.4-slim
GitCommit: 6b24d8cd0ad4c5a01874d094d92cd79518b3d490
Directory: 3.4/slim

Tags: 3.4.5-alpine, 3.4-alpine
GitCommit: 83b8e044aa38ab97b5427a9591e0537464e976e6
Directory: 3.4/alpine

Tags: 3.4.5-wheezy, 3.4-wheezy
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 3.4/wheezy

Tags: 3.4.5-onbuild, 3.4-onbuild
GitCommit: 9a9021f2134d953165b31d98cacb95aa34076f90
Directory: 3.4/onbuild

Tags: 3.5.2, 3.5, 3, latest
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 3.5

Tags: 3.5.2-slim, 3.5-slim, 3-slim, slim
GitCommit: 6b24d8cd0ad4c5a01874d094d92cd79518b3d490
Directory: 3.5/slim

Tags: 3.5.2-alpine, 3.5-alpine, 3-alpine, alpine
GitCommit: 83b8e044aa38ab97b5427a9591e0537464e976e6
Directory: 3.5/alpine

Tags: 3.5.2-onbuild, 3.5-onbuild, 3-onbuild, onbuild
GitCommit: 9a9021f2134d953165b31d98cacb95aa34076f90
Directory: 3.5/onbuild

Tags: 3.5.2-windowsservercore, 3.5-windowsservercore, 3-windowsservercore, windowsservercore
GitCommit: 855b85c8309e925814dfa97d61310080dcd08db6
Directory: 3.5/windows/windowsservercore
Constraints: windowsservercore

Tags: 3.6.0b3, 3.6-rc, rc
GitCommit: b16ff405101a9f6c6540fb3467ca25baa9610174
Directory: 3.6-rc

Tags: 3.6.0b3-slim, 3.6-rc-slim, rc-slim
GitCommit: b16ff405101a9f6c6540fb3467ca25baa9610174
Directory: 3.6-rc/slim

Tags: 3.6.0b3-alpine, 3.6-rc-alpine, rc-alpine
GitCommit: b16ff405101a9f6c6540fb3467ca25baa9610174
Directory: 3.6-rc/alpine

Tags: 3.6.0b3-onbuild, 3.6-rc-onbuild, rc-onbuild
GitCommit: b16ff405101a9f6c6540fb3467ca25baa9610174
Directory: 3.6-rc/onbuild

Tags: 3.6.0b3-windowsservercore, 3.6-rc-windowsservercore, rc-windowsservercore
GitCommit: b16ff405101a9f6c6540fb3467ca25baa9610174
Directory: 3.6-rc/windows/windowsservercore
Constraints: windowsservercore

$ ./update.sh
+ sed -ri -e 's/^(ENV GPG_KEY) .*/\1 C01E1CAD5EA2C4F0B8E3571504C367C218ADD4FF/' -e 's/^(ENV PYTHON_VERSION) .*/\1 2.7.12/' -e 's/^(ENV PYTHON_RELEASE) .*/\1 2.7.12/' -e 's/^(ENV PYTHON_PIP_VERSION) .*/\1 8.1.2/' -e 's/^(FROM python):.*/\1:2.7/' 2.7/Dockerfile 2.7/alpine/Dockerfile 2.7/onbuild/Dockerfile 2.7/slim/Dockerfile 2.7/wheezy/Dockerfile 2.7/windows/windowsservercore/Dockerfile
+ sed -ri -e 's/^(ENV GPG_KEY) .*/\1 26DEA9D4613391EF3E25C9FF0A5B101836580288/' -e 's/^(ENV PYTHON_VERSION) .*/\1 3.3.6/' -e 's/^(ENV PYTHON_RELEASE) .*/\1 3.3.6/' -e 's/^(ENV PYTHON_PIP_VERSION) .*/\1 8.1.2/' -e 's/^(FROM python):.*/\1:3.3/' 3.3/Dockerfile 3.3/alpine/Dockerfile 3.3/onbuild/Dockerfile 3.3/slim/Dockerfile 3.3/wheezy/Dockerfile
+ sed -ri -e 's/^(ENV GPG_KEY) .*/\1 97FC712E4C024BBEA48A61ED3A5CA953F73C700D/' -e 's/^(ENV PYTHON_VERSION) .*/\1 3.4.5/' -e 's/^(ENV PYTHON_RELEASE) .*/\1 3.4.5/' -e 's/^(ENV PYTHON_PIP_VERSION) .*/\1 8.1.2/' -e 's/^(FROM python):.*/\1:3.4/' 3.4/Dockerfile 3.4/alpine/Dockerfile 3.4/onbuild/Dockerfile 3.4/slim/Dockerfile 3.4/wheezy/Dockerfile
+ sed -ri -e 's/^(ENV GPG_KEY) .*/\1 97FC712E4C024BBEA48A61ED3A5CA953F73C700D/' -e 's/^(ENV PYTHON_VERSION) .*/\1 3.5.2/' -e 's/^(ENV PYTHON_RELEASE) .*/\1 3.5.2/' -e 's/^(ENV PYTHON_PIP_VERSION) .*/\1 8.1.2/' -e 's/^(FROM python):.*/\1:3.5/' 3.5/Dockerfile 3.5/alpine/Dockerfile 3.5/onbuild/Dockerfile 3.5/slim/Dockerfile 3.5/windows/windowsservercore/Dockerfile
+ sed -ri -e 's/^(ENV GPG_KEY) .*/\1 0D96DF4D4110E5C43FBFB17F2D347EA6AA65421D/' -e 's/^(ENV PYTHON_VERSION) .*/\1 3.6.0b3/' -e 's/^(ENV PYTHON_RELEASE) .*/\1 3.6.0/' -e 's/^(ENV PYTHON_PIP_VERSION) .*/\1 8.1.2/' -e 's/^(FROM python):.*/\1:3.6-rc/' 3.6-rc/Dockerfile 3.6-rc/alpine/Dockerfile 3.6-rc/onbuild/Dockerfile 3.6-rc/slim/Dockerfile 3.6-rc/windows/windowsservercore/Dockerfile

(output reflects my temporary hard-coded pipVersion='8.1.2' to avoid changing PIP version here)

[yosifkit]

But I think we should merge the pip update first since the folder renames may cause conflicts.

[michael-k]

the folder renames may cause conflicts

Not an argument; I know how to use rebase ;)