Clarifications from the PyCon US 2016 language summit

This commit is contained in:
Brett Cannon 2016-06-09 11:45:31 -07:00
parent 6f2c9ab021
commit 7559bcde40
1 changed files with 74 additions and 85 deletions

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@ -162,8 +162,8 @@ Define commands to move a Mercurial repository to Git
Since moving to GitHub also entails moving to Git [#git]_, we must Since moving to GitHub also entails moving to Git [#git]_, we must
decide what tools and commands we will run to translate a Mercurial decide what tools and commands we will run to translate a Mercurial
repository to Git. The exact tools and steps to use are an repository to Git. The tools developed specifically for this migration
open issue; see `Tools and commands to move from Mercurial to Git`_. are hosted at https://github.com/orsenthil/cpython-hg-to-git .
CLA enforcement CLA enforcement
@ -287,42 +287,6 @@ core developers is an open issue:
`Git CLI commands for committing a pull request to cpython`_. `Git CLI commands for committing a pull request to cpython`_.
Handling Misc/NEWS
''''''''''''''''''
Traditionally the ``Misc/NEWS`` file [#news-file]_ has been problematic
for changes which spanned Python releases. Often times there will be
merge conflicts when committing a change between e.g., 3.5 and 3.6
only in the ``Misc/NEWS`` file. It's so common, in fact, that the
example instructions in the devguide explicitly mention how to
resolve conflicts in the ``Misc/NEWS`` file
[#devguide-merge-across-branches]_. As part of our tool
modernization, working with the ``Misc/NEWS`` file will be
simplified.
There are currently two competing approaches to solving the
``Misc/NEWS`` problem which are discussed in an open issue:
`How to handle the Misc/NEWS file`_.
Handling Misc/ACKS
''''''''''''''''''
Traditionally the ``Misc/ACKS`` file [#acks-file]_ has been managed
by hand. But thanks to Git supporting an ``author`` value as well as
a ``committer`` value per commit, authorship of a commit can be part
of the history of the code itself.
As such, manual management of ``Misc/ACKS`` will become optional. A
script will be written that will collect all author and committer
names and merge them into ``Misc/ACKS`` with all of the names listed
prior to the move to Git. Running this script will become part of the
release process.
The script should also generate a list of all people who contributed
since the last execution. This will allow having a list of those who
contributed to a specific release so they can be explicitly thanked.
Linking pull requests to issues Linking pull requests to issues
''''''''''''''''''''''''''''''' '''''''''''''''''''''''''''''''
Historically, external contributions were attached to an issue on Historically, external contributions were attached to an issue on
@ -355,11 +319,11 @@ could lead to incorrect associations if the wrong issue or
referencing another issue was done, but these are rare occasions. referencing another issue was done, but these are rare occasions.
Notify the issue if the pull request is committed Notify the issue if a commit is made
+++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++
Once a pull request is closed (merged or not), the issue should be Once a commit is made, the corresponding issue should be updated to
updated to reflect this fact. reflect this fact.
Update linking service for mapping commit IDs to URLs Update linking service for mapping commit IDs to URLs
@ -373,31 +337,6 @@ be updated to redirect to the Git repository and to support the new
revision IDs created for the Git repository. revision IDs created for the Git repository.
Create https://git.python.org
'''''''''''''''''''''''''''''
Just as hg.python.org [#h.p.o]_ currently points to the Mercurial
repository for Python, git.python.org should do the equivalent for
the Git repository.
Backup of pull request data
'''''''''''''''''''''''''''
Since GitHub [#github]_ is going to be used for code hosting and code
review, those two things need to be backed up. In the case of code
hosting, the backup is implicit as all non-shallow Git [#git]_ clones
contain the full history of the repository, hence there will be many
backups of the repository.
The code review history does not have the same implicit backup
mechanism as the repository itself. That means a daily backup of code
review history should be done so that it is not lost in case of any
issues with GitHub. It also helps guarantee that a migration from
GitHub to some other code review system is feasible were GitHub to
disappear overnight.
Deprecate sys._mercurial Deprecate sys._mercurial
'''''''''''''''''''''''' ''''''''''''''''''''''''
@ -436,6 +375,68 @@ bugs.python.org [#b.p.o]_ -- which includes plans independent of this
migration -- are tracked on their own wiki page [#tracker-plans]_. migration -- are tracked on their own wiki page [#tracker-plans]_.
Handling Misc/NEWS
''''''''''''''''''
Traditionally the ``Misc/NEWS`` file [#news-file]_ has been problematic
for changes which spanned Python releases. Often times there will be
merge conflicts when committing a change between e.g., 3.5 and 3.6
only in the ``Misc/NEWS`` file. It's so common, in fact, that the
example instructions in the devguide explicitly mention how to
resolve conflicts in the ``Misc/NEWS`` file
[#devguide-merge-across-branches]_. As part of our tool
modernization, working with the ``Misc/NEWS`` file will be
simplified.
There are currently two competing approaches to solving the
``Misc/NEWS`` problem which are discussed in an open issue:
`How to handle the Misc/NEWS file`_.
Handling Misc/ACKS
''''''''''''''''''
Traditionally the ``Misc/ACKS`` file [#acks-file]_ has been managed
by hand. But thanks to Git supporting an ``author`` value as well as
a ``committer`` value per commit, authorship of a commit can be part
of the history of the code itself.
As such, manual management of ``Misc/ACKS`` will become optional. A
script will be written that will collect all author and committer
names and merge them into ``Misc/ACKS`` with all of the names listed
prior to the move to Git. Running this script will become part of the
release process.
The script should also generate a list of all people who contributed
since the last execution. This will allow having a list of those who
contributed to a specific release so they can be explicitly thanked.
Create https://git.python.org
'''''''''''''''''''''''''''''
Just as hg.python.org [#h.p.o]_ currently points to the Mercurial
repository for Python, git.python.org should do the equivalent for
the Git repository.
Backup of pull request data
'''''''''''''''''''''''''''
Since GitHub [#github]_ is going to be used for code hosting and code
review, those two things need to be backed up. In the case of code
hosting, the backup is implicit as all non-shallow Git [#git]_ clones
contain the full history of the repository, hence there will be many
backups of the repository.
The code review history does not have the same implicit backup
mechanism as the repository itself. That means a daily backup of code
review history should be done so that it is not lost in case of any
issues with GitHub. It also helps guarantee that a migration from
GitHub to some other code review system is feasible were GitHub to
disappear overnight.
Bot to handle pull request merging Bot to handle pull request merging
'''''''''''''''''''''''''''''''''' ''''''''''''''''''''''''''''''''''
@ -613,12 +614,11 @@ Repositories whose build steps need updating:
* Not started * Not started
- peps [#peps-repo]_
- devguide [#devguide-repo]_ - devguide [#devguide-repo]_
* In progress * In progress
- None - peps [#peps-repo]_
* Completed * Completed
@ -629,13 +629,9 @@ Requirements to move over the cpython repo [#cpython-repo]_:
* Not started * Not started
- `Document steps to commit a pull request`_ - `Document steps to commit a pull request`_
- `Handling Misc/NEWS`_
- `Handling Misc/ACKS`_
- `Linking a pull request to an issue`_ - `Linking a pull request to an issue`_
- `Notify the issue if the pull request is committed`_ - `Notify the issue if a commit is made`_
- `Update linking service for mapping commit IDs to URLs`_ - `Update linking service for mapping commit IDs to URLs`_
- `Create https://git.python.org`_
- `Backup of pull request data`_
- `Deprecate sys._mercurial`_ - `Deprecate sys._mercurial`_
- `Update the devguide`_ - `Update the devguide`_
- `Update PEP 101`_ - `Update PEP 101`_
@ -652,6 +648,10 @@ Optional features:
* Not started * Not started
- `Create https://git.python.org`_
- `Backup of pull request data`_
- `Handling Misc/NEWS`_
- `Handling Misc/ACKS`_
- `Bot to handle pull request merging`_ - `Bot to handle pull request merging`_
- `Continuous integration per pull request`_ - `Continuous integration per pull request`_
- `Test coverage report`_ - `Test coverage report`_
@ -699,17 +699,6 @@ either be forced to migration or they can choose to simply stay on
hg.python.org. hg.python.org.
Tools and commands to move from Mercurial to Git
------------------------------------------------
A decision needs to be made on exactly what tooling and what commands
involving those tools will be used to convert a Mercurial repository
to Git. Currently a suggestion has been made to use
https://github.com/frej/fast-export. Another suggestion is to use
https://github.com/felipec/git-remote-hg. Finally,
http://hg-git.github.io/ has been suggested.
Git CLI commands for committing a pull request to cpython Git CLI commands for committing a pull request to cpython
--------------------------------------------------------- ---------------------------------------------------------