Question

Caution

Buildbot no longer supports Python 2.7 on the Buildbot master.

2.5.12.12. P4

class buildbot.steps.source.p4.P4

The P4 build step creates a Perforce client specification and performs an update.

from buildbot.plugins import steps, util

factory.addStep(steps.P4(
    p4port=p4port,
    p4client=util.WithProperties('%(P4USER)s-%(workername)s-%(buildername)s'),
    p4user=p4user,
    p4base='//depot',
    p4viewspec=p4viewspec,
    mode='incremental'))

You can specify the client spec in two different ways. You can use the p4base, p4branch, and (optionally) p4extra_views to build up the viewspec, or you can utilize the p4viewspec to specify the whole viewspec as a set of tuples.

Using p4viewspec will allow you to add lines such as:

//depot/branch/mybranch/...             //<p4client>/...
-//depot/branch/mybranch/notthisdir/... //<p4client>/notthisdir/...

If you specify p4viewspec and any of p4base, p4branch, and/or p4extra_views you will receive a configuration error exception.

p4base

A view into the Perforce depot without branch name or trailing /.... Typically //depot/proj.

p4branch

(optional): A single string, which is appended to the p4base as follows <p4base>/<p4branch>/... to form the first line in the viewspec

p4extra_views

(optional): a list of (depotpath, clientpath) tuples containing extra views to be mapped into the client specification. Both will have /... appended automatically. The client name and source directory will be prepended to the client path.

p4viewspec

This will override any p4branch, p4base, and/or p4extra_views specified. The viewspec will be an array of tuples as follows:

[('//depot/main/','')]

It yields a viewspec with just:

//depot/main/... //<p4client>/...

p4viewspec_suffix

(optional): The p4viewspec lets you customize the client spec for a builder but, as the previous example shows, it automatically adds ... at the end of each line. If you need to also specify file-level remappings, you can set the p4viewspec_suffix to None so that nothing is added to your viewspec:

[('//depot/main/...', '...'),
 ('-//depot/main/config.xml', 'config.xml'),
 ('//depot/main/config.vancouver.xml', 'config.xml')]

It yields a viewspec with:

//depot/main/...                  //<p4client>/...
-//depot/main/config.xml          //<p4client/main/config.xml
//depot/main/config.vancouver.xml //<p4client>/main/config.xml

Note how, with p4viewspec_suffix set to None, you need to manually add ... where you need it.

p4client_spec_options

(optional): By default, clients are created with the allwrite rmdir options. This string lets you change that.

p4port

(optional): the host:port string describing how to get to the P4 Depot (repository), used as the option -p argument for all p4 commands.

p4user

(optional): the Perforce user, used as the option -u argument to all p4 commands.

p4passwd

(optional): the Perforce password, used as the option -p argument to all p4 commands.

p4client

(optional): The name of the client to use. In mode='full' and mode='incremental', it’s particularly important that a unique name is used for each checkout directory to avoid incorrect synchronization. For this reason, Python percent substitution will be performed on this value to replace %(prop:workername)s with the worker name and %(prop:buildername)s with the builder name. The default is buildbot_%(prop:workername)s_%(prop:buildername)s.

p4line_end

(optional): The type of line ending handling P4 should use. This is added directly to the client spec’s LineEnd property. The default is local.

p4extra_args

(optional): Extra arguments to be added to the P4 command-line for the sync command. So for instance if you want to sync only to populate a Perforce proxy (without actually syncing files to disk), you can do:

P4(p4extra_args=['-Zproxyload'], ...)

use_tickets

Set to True to use ticket-based authentication, instead of passwords (but you still need to specify p4passwd).

stream

Set to True to use a stream-associated workspace, in which case p4base and p4branch are used to determine the stream path.