Mercurial Tools
The Mercurial repository
https://bitbucket.org/lindenlab/hg-tools
contains tools for working with Linden Lab repositories.
You are strongly encouraged to check out a copy of this repository and install the coding policy script there as described below, since anything you submit must pass those checks.
The Mercurial Initialization File referred to in the instructions below depends on your operating system. The path to it is
- For Windows:
%USERPROFILE%\Mercurial.ini - For Mac and Linux:
$HOME/.hgrc
You should have created this file when you installed Mercurial and established your username (and, optionally, your email address). If the file does not exist, create it (see Creating a version control repository#Preparing_to_use_Mercurial).
Coding Policy
The coding_policy.py file provides both a Mercurial command extension hg policy and a hook that you should install to check all files when they are committed.
Policy Commit Hook
All changes pulled to a Linden Lab repository will have to pass the checks enforced by the command above. This is enforced when the changes are pulled by the hook provided by coding_policy.py.
To make that check automatic when you are doing local commits, add the following to your Mercurial Initialization File (changing /path/to to the location where you checked out the hg-tools repository):
[hooks] pretxncommit.coding_policy = python:/path/to/coding_policy.py:hook
you can also check all changes you pull into your repository by adding this (also under [hooks]):
pretxnchangegroup.coding_policy = python:/path/to/coding_policy.py:hook
Anyone maintaining a shared repository is encouraged to install this so that you can prevent problems when you attempt to merge your shared repository back to viewer-development.
These hooks apply only to repositories that are related to (share a common ancestor with) specific Linden Lab repositories (see the repo_root variable assignment in the source). Operations on those repositories will print a message describing which policy is being applied, or one that indicates that the repository is not subject to Linden Lab policy checks.
You can exempt a specific repository by adding an empty hook assignment to it; this is useful for working on older repositories that don't contain all the fixes to make them pass:
[hooks] pretxncommit.coding_policy = pretxnchangegroup.coding_policy =
hg policy command
To install the extension, add the following to your Mercurial Initialization File (changing /path/to to the location where you checked out the hg-tools repository):
[extensions] policy = /path/to/coding_policy.py
To check changes against Linden Lab coding policy
hg policy [-p {opensource|proprietary}] {[-f FILE] | [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]}
With no arguments, check uncommitted changes in the working directory.
A specific file (whether or not it has been added to the repository or modified) can be checked by using the -f/--file file option.
When revisions are specified via -r/--rev, check the given committed changes in the local repository.
When given a remote repository, check changes that have been committed locally that are not present in the remote repository. To check changes that would be pushed by default, specify "default-push" as the repository name.
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Warning: Specifying another repository currently does not work... I am working on it, but the hook function, checking changes in your local repository prior to commit, and checking a specific file do seem to be working.
As an alternative to the above - if you need to see whether or not the changes in your repo will pass the commit hook when pulled to some other repo, preview the operation by:
The pretxnchangegroup hook will then analyze all the pulled changes. Oz Linden 04:02, 19 August 2011 (PDT) |
The checks may be against either of two policy sets: opensource or proprietary options:
- -p|--policy POLICY
- The set of policies to check: POLICY may be either 'opensource' or 'proprietary' (the default depends on the repository)
- -r|--rev REVISION
- a revision up to which you would like to check (may be specified more than once for a range)
- -f|--file FILE
- a file to check (whether or not it has been modified)
Confirm Push Target Hook
The confirm_target.py hook can be used to protect yourself from accidentally pushing to sensitive repositories. It will prompt you for confirmation if you attempt to push into any repository whose name ends with one of:
/lindenlab/server-trunk /lindenlab/viewer-development /lindenlab/viewer-pre-beta /lindenlab/viewer-beta /lindenlab/viewer-pre-release /lindenlab/viewer-release
To install, add the following to your Mercurial Initialization File (changing /path/to to the location where you checked out the hg-tools repository):
[hooks] pre-push.confirm = python:/path/to/confirm_target.py:hook