Configuring rez#
Rez has a good number of configurable settings. The default settings, and documentation for every setting, can be found src/rez/rezconfig.py.
Settings are determined in the following way:
The setting is first read from the file
rezconfig.py
in the rez installation;The setting is then overridden if it is present in another settings file pointed at by the
REZ_CONFIG_FILE
environment variable. This can also be a path-like variable, to read from multiple configuration files;The setting is further overriden if it is present in
$HOME/.rezconfig
;The setting is overridden again if the environment variable
REZ_XXX
is present, whereXXX
is the uppercase version of the setting key. For example,image_viewer
will be overriden byREZ_IMAGE_VIEWER
.This is a special case applied only during a package build or release. In this case, if the package definition file contains a “config” section, settings in this section will override all others. See Package Overrides.
It is fairly typical to provide your site-specific rez settings in a file that the environment
variable REZ_CONFIG_FILE
is then set to for all your users.
Tip
You do not need to provide a copy of all settings in this file. Just provide those that are changed from the defaults.
Supported Configuration File Formats#
Rez supports both YAML configuration files and Python configuration files.
You may prefer a Python based configuration file if you need to vary your configuration settings based on your current platform.
Settings Merge Rules#
When multiple configuration sources are present, the settings are merged together - one config file does not replace the previous one, it overrides it. By default, the following rules apply:
Dicts are recursively merged together;
Non-dicts override the previous value.
However, it is also possible to append and/or prepend list-based settings by using the
ModifyList
class. For example, the
following config entry will append to the release_hooks
setting value defined by the
previous configuration sources (you can also supply a prepend
argument):
release_hooks = ModifyList(append=["custom_release_notify"])
Package Overrides#
Packages themselves can override configuration settings. To show how this is useful, consider the following example:
# in package.py
with scope("config") as c:
c.release_packages_path = "/svr/packages/internal"
Here a package is overriding the default release path - perhaps you’re releasing internally- and externally-developed packages to different locations, for example.
These config overrides are only applicable during building and releasing of the package. As such, even though any setting can be overridden, it’s only useful to do so for those that have any effect during the build/install process. These include:
Settings that determine where packages are found, such as
packages_path
,local_packages_path
andrelease_packages_path
;Settings in the
build_system
,release_hook
andrelease_vcs
plugin types;
String Expansions#
The following string expansions occur on all configuration settings:
Any environment variable reference, in the form
${HOME}
;Any property of the
system
object, eg{system.platform}
. Seerez.system.System
for more details.
Delay Load#
It is possible to store a config setting in a separate file, which will be loaded only when that setting is referenced. This can be useful if you have a large value (such as a dict) that you don’t want to pollute the main config with. YAML and JSON formats are supported:
# in rezconfig
default_relocatable_per_package = DelayLoad('/svr/configs/rez_relocs.yaml')
See DelayLoad
.
Commandline Tool#
You can use the rez-config command line tool to see what the current configured settings are. Called with no arguments, it prints all settings; if you specify an argument, it prints out just that setting:
]$ rez-config packages_path
- /home/sclaus/packages
- /home/sclaus/.rez/packages/int
- /home/sclaus/.rez/packages/ext
Here is an example showing how to override settings using your own configuration file:
]$ echo 'packages_path = ["~/packages", "/packages"]' > myrezconfig.py
]$ export REZ_CONFIG_FILE=${PWD}/myrezconfig.py
]$ rez-config packages_path
- /home/sclaus/packages
- /packages
Configuration Settings#
Following is an alphabetical list of rez settings.
Note
Note that this list has been generated automatically from the src/rez/rezconfig.py file in the rez source, so you can also refer to that file for the same information.
Paths#
- context_tmpdir = None#
Where temporary files for contexts go. Defaults to appropriate path depending on your system. For example, *nix distributions will probably set this to
/tmp
. This is separate totmpdir
because you sometimes might want to set this to an NFS location. For example, perhaps rez is used during a render and you’d like to store these tempfiles in the farm queuer’s designated tempdir so they’re cleaned up when the render completes.- REZ_CONTEXT_TMPDIR#
The
REZ_CONTEXT_TMPDIR
environment variable can also be used to configure this.
- local_packages_path = "~/packages"#
The path that Rez will locally install packages to when rez-build is used
- REZ_LOCAL_PACKAGES_PATH#
The
REZ_LOCAL_PACKAGES_PATH
environment variable can also be used to configure this.
- package_definition_build_python_paths = []#
These are extra python paths that are added to
sys.path
only during a build. This means that any of the functions in the following list can import modules from these paths:The
preprocess()
function;Any function decorated with @early. These get evaluated at build time.
You can use this to provide common code to your package definition files during a build. To provide common code for packages to use at resolve time instead (for example, in a
commands()
function) see the followingpackage_definition_python_path
setting.- REZ_PACKAGE_DEFINITION_BUILD_PYTHON_PATHS#
The
REZ_PACKAGE_DEFINITION_BUILD_PYTHON_PATHS
environment variable can also be used to configure this.
- package_definition_python_path = None#
This is the directory from which installed packages can import modules. This is a way for packages to use shared code.
This is NOT a standard path added to
sys.path
. Packages that use modules from within this directory need to explicitly name them. Furthermore, modules that a package uses are copied into that package’s install. This ensures that the package remains standalone and that changes to the shared code will not break or alter existing package installs.Consider the setting:
package_definition_python_path = "/src/rezutils"
Consider also the following package
commands()
function:@include("utils") def commands(): utils.do_some_common_thing(this)
This package will import the code from
/src/rezutils/utils.py
(or more specifically, its copy of this sourcefile) and will bind it to the nameutils
.For further information, see Sharing Code Across Package Definition Files.
- REZ_PACKAGE_DEFINITION_PYTHON_PATH#
The
REZ_PACKAGE_DEFINITION_PYTHON_PATH
environment variable can also be used to configure this.
- packages_path#
Default:
[ "~/packages", # locally installed pkgs, not yet deployed "~/.rez/packages/int", # internally developed pkgs, deployed "~/.rez/packages/ext", # external (3rd party) pkgs, such as houdini, boost ]
The package search path. Rez uses this to find packages. A package with the same name and version in an earlier path takes precedence.
- REZ_PACKAGES_PATH#
The
REZ_PACKAGES_PATH
environment variable can also be used to configure this.
- release_packages_path = "~/.rez/packages/int"#
The path that Rez will deploy packages to when rez-release is used. For production use, you will probably want to change this to a site-wide location.
- REZ_RELEASE_PACKAGES_PATH#
The
REZ_RELEASE_PACKAGES_PATH
environment variable can also be used to configure this.
- tmpdir = None#
Where temporary files go. Defaults to appropriate path depending on your system. For example, *nix distributions will probably set this to
/tmp
. It is highly recommended that this be set to local storage, such as/tmp
.- REZ_TMPDIR#
The
REZ_TMPDIR
environment variable can also be used to configure this.
Extensions#
Caching#
- cache_listdir = True#
Cache directory traversals to memcached, if enabled. Updated directory entries will still be read correctly (ie, the cache invalidates when the filesystem changes).
- REZ_CACHE_LISTDIR#
The
REZ_CACHE_LISTDIR
environment variable can also be used to configure this.
- cache_package_files = True#
Cache package file reads to memcached, if enabled. Updated package files will still be read correctly (ie, the cache invalidates when the filesystem changes).
- REZ_CACHE_PACKAGE_FILES#
The
REZ_CACHE_PACKAGE_FILES
environment variable can also be used to configure this.
- memcached_context_file_min_compress_len = 1#
Bytecount beyond which memcached entries are compressed, for cached context files (aka .rxt files). Zero means never compress.
- REZ_MEMCACHED_CONTEXT_FILE_MIN_COMPRESS_LEN#
The
REZ_MEMCACHED_CONTEXT_FILE_MIN_COMPRESS_LEN
environment variable can also be used to configure this.
- memcached_listdir_min_compress_len = 16384#
Bytecount beyond which memcached entries are compressed, for directory listings. Zero means never compress.
- REZ_MEMCACHED_LISTDIR_MIN_COMPRESS_LEN#
The
REZ_MEMCACHED_LISTDIR_MIN_COMPRESS_LEN
environment variable can also be used to configure this.
- memcached_package_file_min_compress_len = 16384#
Bytecount beyond which memcached entries are compressed, for cached package files (such as package.yaml, package.py). Zero means never compress.
- REZ_MEMCACHED_PACKAGE_FILE_MIN_COMPRESS_LEN#
The
REZ_MEMCACHED_PACKAGE_FILE_MIN_COMPRESS_LEN
environment variable can also be used to configure this.
- memcached_resolve_min_compress_len = 1#
Bytecount beyond which memcached entries are compressed, for resolves. Zero means never compress.
- REZ_MEMCACHED_RESOLVE_MIN_COMPRESS_LEN#
The
REZ_MEMCACHED_RESOLVE_MIN_COMPRESS_LEN
environment variable can also be used to configure this.
- memcached_uri = []#
Uris of running memcached server(s) to use as a file and resolve cache. For example, the URI
127.0.0.1:11211
points to memcached running on localhost on its default port. Must be either None, or a list of strings.- REZ_MEMCACHED_URI#
The
REZ_MEMCACHED_URI
environment variable can also be used to configure this.
- resolve_caching = True#
Cache resolves to memcached, if enabled. Note that these cache entries will be correctly invalidated if, for example, a newer package version is released that would change the result of an existing resolve.
- REZ_RESOLVE_CACHING#
The
REZ_RESOLVE_CACHING
environment variable can also be used to configure this.
- resource_caching_maxsize = -1#
The size of the local (in-process) resource cache. Resources include package families, packages and variants. A value of 0 disables caching; -1 sets a cache of unlimited size. The size refers to the number of entries, not byte count.
- REZ_RESOURCE_CACHING_MAXSIZE#
The
REZ_RESOURCE_CACHING_MAXSIZE
environment variable can also be used to configure this.
Package Copy#
- default_relocatable = True#
Whether a package is relocatable or not, if it does not explicitly state with the
relocatable
attribute in its package definition file.- REZ_DEFAULT_RELOCATABLE#
The
REZ_DEFAULT_RELOCATABLE
environment variable can also be used to configure this.
- default_relocatable_per_package = None#
Set relocatable on a per-package basis. This is here for migration purposes. It’s better for packages themselves to set their relocatable attribute. Overrides
default_relocatable
if a package matches.Example:
default_relocatable_per_package = { "nuke": False, "maya": True }
- REZ_DEFAULT_RELOCATABLE_PER_PACKAGE#
The
REZ_DEFAULT_RELOCATABLE_PER_PACKAGE
environment variable can also be used to configure this.
- default_relocatable_per_repository = None#
Set relocatable on a per-package-repository basis. Overrides
default_relocatable_per_package
anddefault_relocatable
for any repos listed here.Example:
default_relocatable_per_repostitory = { '/svr/packages': False }
- REZ_DEFAULT_RELOCATABLE_PER_REPOSITORY#
The
REZ_DEFAULT_RELOCATABLE_PER_REPOSITORY
environment variable can also be used to configure this.
Package Caching#
Package caching refers to copying variant payloads to a path on local disk, and using those payloads instead. It is a way to avoid fetching files over shared storage, and is unrelated to memcached-based caching of resolves and package definitions as seen in the “Caching” config section.
- cache_packages_path = None#
The path where rez locally caches variants. If this is None, then package caching is disabled.
- REZ_CACHE_PACKAGES_PATH#
The
REZ_CACHE_PACKAGES_PATH
environment variable can also be used to configure this.
- default_cachable = False#
Whether a package is cachable or not, if it does not explicitly state with the
cachable
attribute in its package definition file. If None, defaults to packages’ relocatability (ie cachable == relocatable).- REZ_DEFAULT_CACHABLE#
The
REZ_DEFAULT_CACHABLE
environment variable can also be used to configure this.
- default_cachable_per_package = None#
Set cachable on a per-package basis. This is here for migration purposes. It’s better for packages themselves to set their cachable attribute. Overrides
default_cachable
if a package matches.Example:
default_cachable_per_package = { "nuke": False, "maya": True }
- REZ_DEFAULT_CACHABLE_PER_PACKAGE#
The
REZ_DEFAULT_CACHABLE_PER_PACKAGE
environment variable can also be used to configure this.
- default_cachable_per_repository = None#
Set cachable on a per-package-repository basis. Overrides
default_cachable_per_package
anddefault_cachable
for any repos listed here.Example:
default_cachable_per_repostitory = { '/svr/packages': False }
- REZ_DEFAULT_CACHABLE_PER_REPOSITORY#
The
REZ_DEFAULT_CACHABLE_PER_REPOSITORY
environment variable can also be used to configure this.
- package_cache_clean_limit = 0.5#
If > 0, spend up to this many seconds cleaning the cache every time the cache is updated. This is a way to keep the cache size under control without having to periodically run
rez-pkg-cache --clean
. Set to -1 to disable.- REZ_PACKAGE_CACHE_CLEAN_LIMIT#
The
REZ_PACKAGE_CACHE_CLEAN_LIMIT
environment variable can also be used to configure this.
- package_cache_during_build = False#
Enable package caching during a package build.
- REZ_PACKAGE_CACHE_DURING_BUILD#
The
REZ_PACKAGE_CACHE_DURING_BUILD
environment variable can also be used to configure this.
- package_cache_local = False#
Allow caching of local packages. You would only want to set this True for testing purposes.
- REZ_PACKAGE_CACHE_LOCAL#
The
REZ_PACKAGE_CACHE_LOCAL
environment variable can also be used to configure this.
- package_cache_log_days = 7#
Number of days of package cache logs to keep. Logs are written to
pkg-cache-root/.sys/log/filename.log
- REZ_PACKAGE_CACHE_LOG_DAYS#
The
REZ_PACKAGE_CACHE_LOG_DAYS
environment variable can also be used to configure this.
- package_cache_max_variant_days = 30#
Delete variants that haven’t been used in N days (see
rez-pkg-cache --clean
). To disable, set to zero.- REZ_PACKAGE_CACHE_MAX_VARIANT_DAYS#
The
REZ_PACKAGE_CACHE_MAX_VARIANT_DAYS
environment variable can also be used to configure this.
- package_cache_same_device = False#
Allow package caching if the source package is on the same physical disk as the package cache itself. You would only want to set this True for testing purposes.
- REZ_PACKAGE_CACHE_SAME_DEVICE#
The
REZ_PACKAGE_CACHE_SAME_DEVICE
environment variable can also be used to configure this.
Package Resolution#
- allow_unversioned_packages = True#
If True, unversioned packages are allowed. Solve times are slightly better if this value is False.
- REZ_ALLOW_UNVERSIONED_PACKAGES#
The
REZ_ALLOW_UNVERSIONED_PACKAGES
environment variable can also be used to configure this.
- error_on_missing_variant_requires = True#
Defines whether a resolve should immediately fail if any variants have a required package that can’t be found. This can be useful to disable if you have packages that aren’t available to all users. It is enabled by default. If a variant has requires that cannot be found , it will error immediately rather than trying the other variants. If disabled, it will try other variants before giving up.
Warning
Memcached isn’t tested with scenarios where you expect users to have access to different sets of packages. It expects that every user can access the same set of packages, which may cause incorrect resolves when this option is disabled.
- REZ_ERROR_ON_MISSING_VARIANT_REQUIRES#
The
REZ_ERROR_ON_MISSING_VARIANT_REQUIRES
environment variable can also be used to configure this.
- implicit_packages#
Default:
[ "~platform=={system.platform}", "~arch=={system.arch}", "~os=={system.os}", ]
Packages that are implicitly added to all package resolves, unless the
rez-env --no-implicit
flag is used.- REZ_IMPLICIT_PACKAGES#
The
REZ_IMPLICIT_PACKAGES
environment variable can also be used to configure this.
- package_filter = None#
One or more filters can be listed, each with a list of exclusion and inclusion rules. These filters are applied to each package during a resolve, and if any filter excludes a package, that package is not included in the resolve. Here is a simple example:
package_filter = { 'excludes': 'glob(*.beta)', 'includes': 'glob(foo-*)', }
This is an example of a single filter with one exclusion rule and one inclusion rule. The filter will ignore all packages with versions ending in
.beta
, except for packagefoo
(which it will accept all versions of). A filter will only exclude a package if that package matches at least one exclusion rule, and does not match any inclusion rule.Here is another example, which excludes all beta and dev packages, and all packages except
foo
that are released after a certain date. Note that in order to use multiple filters, you need to supply a list of dicts, rather than just a dict:package_filter = [ { 'excludes': ['glob(*.beta)', 'glob(*.dev)'] }, { 'excludes': ['after(1429830188)'], 'includes': ['foo'], # same as range(foo), same as glob(foo-*) } ]
This example shows why multiple filters are supported. With only one filter, it would not be possible to exclude all beta and dev packages (including foo), but also exclude all packages after a certain date, except for foo.
Following are examples of all the possible rules:
Example
Description
glob(*.beta)
Matches packages matching the glob pattern.
regex(.*-\\.beta)
Matches packages matching re-style regex.
range(foo-5+)
Matches packages within the given requirement.
before(1429830188)
Matches packages released before the given date.
after(1429830188)
Matches packages released after the given date.
*.beta
Same as glob(*.beta).
foo-5+
Same as range(foo-5+).
- REZ_PACKAGE_FILTER#
The
REZ_PACKAGE_FILTER
environment variable can also be used to configure this.
- package_orderers = None#
One or more “orderers” can be listed. This will affect the order of version resolution. This can be used to ensure that specific version have priority over others. Higher versions can still be accessed if explicitly requested.
A common use case is to ease migration from python-2 to python-3:
package_orderers = [ { "type": "per_family", "orderers": [ { "packages": ["python"], "type": "version_split", "first_version": "2.7.16" } ] } ]
This will ensure that for the “python” package, versions equals or lower than “2.7.16” will have priority. Considering the following versions: “2.7.4”, “2.7.16”, “3.7.4”:
Example
Result
rez-env python
python-2.7.16
rez-env python-3
python-3.7.4
Package orderers will also apply to variants of packages. Consider a package “pipeline-1.0” which has the following variants:
[["python-2.7.4", "python-2.7.16", "python-3.7.4"]]
Example
Result
rez-env pipeline
pipeline-1.0 python-2.7.16
rez-env pipeline python-3
pipeline-1.0 python-3.7.4
Here’s another example, using another orderer: “soft_timestamp”. This orderer will prefer packages released before a provided timestamp. The following example will prefer package released before 2019-09-09.
package_orderers = [ { "type": "soft_timestamp", "timestamp": 1568001600, # 2019-09-09 "rank": 3 } ]
A timestamp can be generated with python:
$ python -c "import datetime, time; print(int(time.mktime(datetime.date(2019, 9, 9).timetuple())))" 1568001600
The rank can be used to allow some versions released after the timestamp to still be considered. When using semantic versionnng, a value of 3 is the most common. This will let version with a different patch number to be accepted.
Considering a package “foo” with the following versions:
“1.0.0” was released at 2019-09-07
“2.0.0” was released at 2019-09-08
“2.0.1” was released at 2019-09-10
“2.1.0” was released at 2019-09-11
“3.0.0” was released at 2019-09-12
Example
Timestamp
Rank
Result
rez-env foo
2019-09-09
0
foo-2.0.0
rez-env foo
2019-09-09
3
foo-2.0.1
rez-env foo
2019-09-09
2
foo-2.1.0
rez-env foo
2019-09-09
1
foo-3.0.0
- REZ_PACKAGE_ORDERERS#
The
REZ_PACKAGE_ORDERERS
environment variable can also be used to configure this.
- platform_map = {}#
Override platform values from Platform.os and arch. This is useful as Platform.os might show different values depending on the availability of
lsb-release
on the system. The map supports regular expression, e.g. to keep versions.Note
The following examples are not necessarily recommendations.
platform_map = { "os": { r"Scientific Linux-(.*)": r"Scientific-\1", # Scientific Linux-x.x -> Scientific-x.x r"Ubuntu-14.\d": r"Ubuntu-14", # Any Ubuntu-14.x -> Ubuntu-14 r'CentOS Linux-(\d+)\.(\d+)(\.(\d+))?': r'CentOS-\1.\2', ' # Centos Linux-X.Y.Z -> CentOS-X.Y }, "arch": { "x86_64": "64bit", # Maps both x86_64 and amd64 -> 64bit "amd64": "64bit", }, }
- REZ_PLATFORM_MAP#
The
REZ_PLATFORM_MAP
environment variable can also be used to configure this.
- prune_failed_graph = True#
If true, then when a resolve graph is generated during a failed solve, packages unrelated to the failure are pruned from the graph. An “unrelated” package is one that is not a dependency ancestor of any packages directly involved in the failure.
- REZ_PRUNE_FAILED_GRAPH#
The
REZ_PRUNE_FAILED_GRAPH
environment variable can also be used to configure this.
- variant_select_mode = "version_priority"#
Variant select mode. This determines which variants in a package are preferred during a solve. Valid options are:
version_priority: Prefer variants that contain higher versions of packages present in the request;
intersection_priority: Prefer variants that contain the most number of packages that are present in the request.
As an example, suppose you have a package foo which has two variants:
variants = [ ["bar-3.0", "baz-2.1"], ["bar-2.8", "burgle-1.0"] ]
if you do
rez-env foo bar
then, in either variant_select_mode, it will prefer the first variant,["bar-3.0", "baz-2.1"]
, because it has a higher version of the first variant requirement (bar). However, if we instead dorez-env foo bar burgle
we get different behavior. version_priority mode will still return["bar-3.0", "baz-2.1"]
, because the first requirement’s version is higher.However,
intersection_priority
mode will pick the second variant,["bar-2.8", "burgle-1.0"]
, because it contains more packages that were in the original request (burgle).- REZ_VARIANT_SELECT_MODE#
The
REZ_VARIANT_SELECT_MODE
environment variable can also be used to configure this.
Environment Resolution#
- all_parent_variables = False#
See
parent_variables
.- REZ_ALL_PARENT_VARIABLES#
The
REZ_ALL_PARENT_VARIABLES
environment variable can also be used to configure this.
- all_resetting_variables = False#
See
resetting_variables
.- REZ_ALL_RESETTING_VARIABLES#
The
REZ_ALL_RESETTING_VARIABLES
environment variable can also be used to configure this.
- default_shell = ""#
The default shell type to use when creating resolved environments (eg when using rez-env, or calling
ResolvedContext.execute_shell()
). If empty or None, the current shell is used (for eg, “bash”).Changed in version 3.0.0: The default value on Windows was changed to “powershell”.
- REZ_DEFAULT_SHELL#
The
REZ_DEFAULT_SHELL
environment variable can also be used to configure this.
- env_var_separators#
Default:
{ "CMAKE_MODULE_PATH": ";", "DOXYGEN_TAGFILES": " ", }
This setting can be used to override the separator used for environment variables that represent a list of items. By default, the value of
os.pathsep
will be used, unless the environment variable is list here, in which case the configured separator will be used.- REZ_ENV_VAR_SEPARATORS#
The
REZ_ENV_VAR_SEPARATORS
environment variable can also be used to configure this.
- new_session_popen_args = None#
subprocess.Popen
arguments to use in order to execute a shell in a new process group (seeResolvedContext.execute_shell()
and itsstart_new_session
argument). Dict of (Popen argument, value).- REZ_NEW_SESSION_POPEN_ARGS#
The
REZ_NEW_SESSION_POPEN_ARGS
environment variable can also be used to configure this.
- package_commands_sourced_first = True#
Defines when package commands are sourced during the startup sequence of an interactive shell. If True, package commands are sourced before startup scripts (such as
.bashrc
). If False, package commands are sourced after.- REZ_PACKAGE_COMMANDS_SOURCED_FIRST#
The
REZ_PACKAGE_COMMANDS_SOURCED_FIRST
environment variable can also be used to configure this.
- package_preprocess_function = None#
If you define this function, by default it will be called as the preprocess function on every package that does not provide its own, as part of the build process. This behavior can be changed by using the
package_preprocess_mode
setting so that it gets executed even if a package define its own preprocess function.The setting can be a function defined in your
rezconfig.py
, or a string.Example of a function to define the setting:
# in your rezconfig.py def package_preprocess_function(this, data): # some custom code...
In the case where the function is a string, it must be made available by setting the value of
package_definition_build_python_paths
appropriately.For example, consider the settings:
package_definition_build_python_paths = ["/src/rezutils"] package_preprocess_function = "build.validate"
This would use the
validate
function in the sourcefile/src/rezutils/build.py
to preprocess every package definition file that does not define its own preprocess function.If the preprocess function raises an exception, an error message is printed, and the preprocessing is not applied to the package. However, if the
InvalidPackageError
exception is raised, the build is aborted.You would typically use this to perform common validation or modification of packages. For example, your common preprocess function might check that the package name matches a regex. Here’s what that might look like:
# in /src/rezutils/build.py import re from rez.exceptions import InvalidPackageError def validate(package, data): regex = re.compile("(a-zA-Z_)+$") if not regex.match(package.name): raise InvalidPackageError("Invalid package name.")
- REZ_PACKAGE_PREPROCESS_FUNCTION#
The
REZ_PACKAGE_PREPROCESS_FUNCTION
environment variable can also be used to configure this.
- package_preprocess_mode = "override"#
Defines in which order the
package_preprocess_function
and thepreprocess
function inside apackage.py
are executed.Note that “global preprocess” means the preprocess defined by
package_preprocess_function
.Possible values are:
“before”: Package’s preprocess function is executed before the global preprocess;
“after”: Package’s preprocess function is executed after the global preprocess;
“override”: Package’s preprocess function completely overrides the global preprocess.
- REZ_PACKAGE_PREPROCESS_MODE#
The
REZ_PACKAGE_PREPROCESS_MODE
environment variable can also be used to configure this.
- parent_variables = []#
Rez’s default behaviour is to overwrite variables on first reference. This prevents unconfigured software from being used within the resolved environment. For example, if PYTHONPATH were to be appended to and not overwritten, then python modules from the parent environment would be (incorrectly) accessible within the Rez environment.
“Parent variables” override this behaviour. They are appended/prepended to, rather than being overwritten. If you set
all_parent_variables
toTrue
, then all variables are considered parent variables, and the value ofparent_variables
is ignored. Be aware that if you make variables such asPATH
,PYTHONPATH
or app plugin paths parent variables, you are exposing yourself to potentially incorrect behaviour within a resolved environment.- REZ_PARENT_VARIABLES#
The
REZ_PARENT_VARIABLES
environment variable can also be used to configure this.
- pathed_env_vars#
Default:
[ "*PATH" ]
This setting identifies path-like environment variables. This is required because some shells need to apply path normalization. For example, the command
env.PATH.append("{root}/bin")
will be normalized to (eg)C:\...\bin
in acmd
shell on Windows. Note that wildcards are supported. If this setting is not correctly configured, then your shell may not work correctly.- REZ_PATHED_ENV_VARS#
The
REZ_PATHED_ENV_VARS
environment variable can also be used to configure this.
- resetting_variables = []#
When two or more packages in a resolve attempt to set the same environment variable, Rez’s default behaviour is to flag this as a conflict and abort the resolve. You can overcome this in a package’s commands section by using the Rex command
resetenv()
instead ofsetenv()
. However, you can also turn off this behaviour globally for some varibles by adding them toresetting_variables
, and for all variables, by settingall_resetting_variables
to true.- REZ_RESETTING_VARIABLES#
The
REZ_RESETTING_VARIABLES
environment variable can also be used to configure this.
- rez_tools_visibility = "append"#
Defines how Rez’s command line tools are added back to
$PATH
within a resolved environment. Valid values are:“append”: Rez tools are appended to PATH (default);
“prepend”: Rez tools are prepended to PATH;
“never”: Rez tools are not added back to PATH. Rez will not be available within resolved shells.
- REZ_REZ_TOOLS_VISIBILITY#
The
REZ_REZ_TOOLS_VISIBILITY
environment variable can also be used to configure this.
- standard_system_paths = []#
Defines paths to initially set
$PATH
to, if a resolve appends/prepends$PATH
. If this is an empty list, then this initial value is determined automatically depending on the shell (for example, *nix shells create a temp clean shell and get$PATH
from there; Windows inspects its registry).- REZ_STANDARD_SYSTEM_PATHS#
The
REZ_STANDARD_SYSTEM_PATHS
environment variable can also be used to configure this.
- suite_visibility = "always"#
Defines what suites on
$PATH
stay visible when a new rez environment is resolved. Possible values are:“never”: Don”t attempt to keep any suites visible in a new env
“always”: Keep suites visible in any new env
“parent”: Keep only the parent suite of a tool visible
“parent_priority”: Keep all suites visible and the parent takes precedence
- REZ_SUITE_VISIBILITY#
The
REZ_SUITE_VISIBILITY
environment variable can also be used to configure this.
- terminal_emulator_command = None#
The command to use to launch a new Rez environment in a separate terminal (this is enabled using the
rez-env --detached
option). If None, it is detected.- REZ_TERMINAL_EMULATOR_COMMAND#
The
REZ_TERMINAL_EMULATOR_COMMAND
environment variable can also be used to configure this.
Context Tracking#
- context_tracking_amqp#
Default:
{ "userid": '', "password": '', "connect_timeout": 10, "exchange_name": '', "exchange_routing_key": 'REZ.CONTEXT', "message_delivery_mode": 1 }
- REZ_CONTEXT_TRACKING_AMQP#
The
REZ_CONTEXT_TRACKING_AMQP
environment variable can also be used to configure this.
- context_tracking_context_fields#
Default:
[ "status", "timestamp", "solve_time", "load_time", "from_cache", "package_requests", "implicit_packages", "resolved_packages" ]
- REZ_CONTEXT_TRACKING_CONTEXT_FIELDS#
The
REZ_CONTEXT_TRACKING_CONTEXT_FIELDS
environment variable can also be used to configure this.
- context_tracking_extra_fields = {}#
-
- REZ_CONTEXT_TRACKING_EXTRA_FIELDS#
The
REZ_CONTEXT_TRACKING_EXTRA_FIELDS
environment variable can also be used to configure this.
- context_tracking_host = ''#
Send data to AMQP server whenever a context is created or sourced. The payload is like so:
{ "action": "created", "host": "some_fqdn", "user": "${USER}", "context": { ... } }
Action is one of (
created
,sourced
). Routing key is set to{exchange_routing_key}.{action|upper}
, egREZ.CONTEXT.SOURCED
.created
is when a new context is constructed, which will either cause a resolve to occur, or fetches a resolve from the cache.sourced
is when an existing context is recreated (eg loading an rxt file).The
context
field contains the context itself (the same as what is present in an rxt file), filtered by the fields listed incontext_tracking_context_fields
.Tracking is enabled if
context_tracking_host
is non-empty. Set tostdout
to just print the message to standard out instead, for testing purposes. Otherwise,{host}[:{port}]
is expected.If any items are present in
context_tracking_extra_fields
, they are added to the payload. If any extra field contains references to unknown env-vars, or is set to an empty string (possibly due to var expansion), it is removed from the message payload.- REZ_CONTEXT_TRACKING_HOST#
The
REZ_CONTEXT_TRACKING_HOST
environment variable can also be used to configure this.
Debugging#
- catch_rex_errors = True#
When an error is encountered in rex code, rez catches the error and processes it, removing internal info (such as the stacktrace inside rez itself) that is generally not interesting to the package author. If set to False, rex errors are left uncaught, which can be useful for debugging purposes.
- REZ_CATCH_REX_ERRORS#
The
REZ_CATCH_REX_ERRORS
environment variable can also be used to configure this.
- debug_all = False#
Turn on all debugging messages
- REZ_DEBUG_ALL#
The
REZ_DEBUG_ALL
environment variable can also be used to configure this.
- debug_bind_modules = False#
Print debugging info in binding modules. Binding modules should print using the bind_utils.log() function - it is controlled with this setting
- REZ_DEBUG_BIND_MODULES#
The
REZ_DEBUG_BIND_MODULES
environment variable can also be used to configure this.
- debug_context_tracking = False#
Print debugging info when an AMPQ server is used in context tracking
- REZ_DEBUG_CONTEXT_TRACKING#
The
REZ_DEBUG_CONTEXT_TRACKING
environment variable can also be used to configure this.
- debug_file_loads = False#
Print info whenever a file is loaded from disk, or saved to disk.
- REZ_DEBUG_FILE_LOADS#
The
REZ_DEBUG_FILE_LOADS
environment variable can also be used to configure this.
- debug_memcache = False#
Debug memcache usage. As well as printing debugging info to stdout, it also sends human-readable strings as memcached keys (that you can read by running
memcached -vv
as the server)- REZ_DEBUG_MEMCACHE#
The
REZ_DEBUG_MEMCACHE
environment variable can also be used to configure this.
- debug_none = False#
Turn off all debugging messages. This overrides
debug_all
.- REZ_DEBUG_NONE#
The
REZ_DEBUG_NONE
environment variable can also be used to configure this.
- debug_package_exclusions = False#
Print packages that are excluded from the resolve, and the filter rule responsible.
- REZ_DEBUG_PACKAGE_EXCLUSIONS#
The
REZ_DEBUG_PACKAGE_EXCLUSIONS
environment variable can also be used to configure this.
- debug_package_release = False#
Print debugging info such as VCS commands during package release. Note that rez-pip installations are controlled with this setting also.
- REZ_DEBUG_PACKAGE_RELEASE#
The
REZ_DEBUG_PACKAGE_RELEASE
environment variable can also be used to configure this.
- debug_plugins = False#
Print debugging info when loading plugins
- REZ_DEBUG_PLUGINS#
The
REZ_DEBUG_PLUGINS
environment variable can also be used to configure this.
- debug_resolve_memcache = False#
Print debugging info related to use of memcached during a resolve
- REZ_DEBUG_RESOLVE_MEMCACHE#
The
REZ_DEBUG_RESOLVE_MEMCACHE
environment variable can also be used to configure this.
- debug_resources = False#
Print debugging info when searching, loading and copying resources.
- REZ_DEBUG_RESOURCES#
The
REZ_DEBUG_RESOURCES
environment variable can also be used to configure this.
- shell_error_truncate_cap = 750#
Sets the maximum number of characters printed from the stdout / stderr of some shell commands when they fail. If 0, then the output is not truncated
- REZ_SHELL_ERROR_TRUNCATE_CAP#
The
REZ_SHELL_ERROR_TRUNCATE_CAP
environment variable can also be used to configure this.
- warn_all = False#
Turn on all warnings
- REZ_WARN_ALL#
The
REZ_WARN_ALL
environment variable can also be used to configure this.
- warn_none = False#
Turn off all warnings. This overrides
warn_all
.- REZ_WARN_NONE#
The
REZ_WARN_NONE
environment variable can also be used to configure this.
- warn_shell_startup = False#
If true, print warnings associated with shell startup sequence, when using tools such as rez-env. For example, if the target shell type is
sh
, and thercfile
param is used, you would get a warning, because the sh shell does not support rcfile.- REZ_WARN_SHELL_STARTUP#
The
REZ_WARN_SHELL_STARTUP
environment variable can also be used to configure this.
Package Build/Release#
- build_directory = "build"#
The default working directory for a package build, either absolute path or relative to the package source directory (this is typically where temporary build files are written).
- REZ_BUILD_DIRECTORY#
The
REZ_BUILD_DIRECTORY
environment variable can also be used to configure this.
- build_thread_count = "physical_cores"#
The number of threads a build system should use, eg the make
-j
option. If the string valueslogical_cores
orphysical_cores
are used, it is set to the detected number of logical / physical cores on the host system. (Logical cores are the number of cores reported to the OS, physical are the number of actual hardware processor cores. They may differ if, ie, the CPUs support hyperthreading, in which caselogical_cores == 2 * physical_cores
). This setting is exposed as the environment variableREZ_BUILD_THREAD_COUNT
during builds.- REZ_BUILD_THREAD_COUNT#
The
REZ_BUILD_THREAD_COUNT
environment variable can also be used to configure this.
- make_package_temporarily_writable = True#
Sometimes a studio will run a post-release process to set a package and its payload to read-only. If you set this option to True, processes that mutate an existing package (such as releasing a variant into an existing package, or copying a package) will, if possible, temporarily make a package writable during these processes. The mode will be set back to original afterwards.
- REZ_MAKE_PACKAGE_TEMPORARILY_WRITABLE#
The
REZ_MAKE_PACKAGE_TEMPORARILY_WRITABLE
environment variable can also be used to configure this.
- prompt_release_message = False#
Prompt for release message using an editor. If set to False, there will be no editor prompt.
- REZ_PROMPT_RELEASE_MESSAGE#
The
REZ_PROMPT_RELEASE_MESSAGE
environment variable can also be used to configure this.
- release_hooks = []#
The release hooks to run when a release occurs. Release hooks are plugins. If a plugin listed here is not present, a warning message is printed. Note that a release hook plugin being loaded does not mean it will run. It needs to be listed here as well. Several built-in release hooks are available, see src/rezplugins/release_hook.
- REZ_RELEASE_HOOKS#
The
REZ_RELEASE_HOOKS
environment variable can also be used to configure this.
- use_variant_shortlinks = True#
Whether or not to use variant shortlinks when resolving variant root paths. You might want to disable this for testing purposes, but typically you would leave this True.
- REZ_USE_VARIANT_SHORTLINKS#
The
REZ_USE_VARIANT_SHORTLINKS
environment variable can also be used to configure this.
- variant_shortlinks_dirname = "_v"#
The subdirectory where hashed variant symlinks (known as variant shortlinks) are created. This is only relevant for packages whose ‘hashed_variants’ is set to True. To disable variant shortlinks, set this to None.
- REZ_VARIANT_SHORTLINKS_DIRNAME#
The
REZ_VARIANT_SHORTLINKS_DIRNAME
environment variable can also be used to configure this.
Suites#
- suite_alias_prefix_char = "+"#
The prefix character used to pass rez-specific command line arguments to alias scripts in a suite. This must be a character other than
-
, so that it doesn”t clash with the wrapped tools” own commandline arguments.- REZ_SUITE_ALIAS_PREFIX_CHAR#
The
REZ_SUITE_ALIAS_PREFIX_CHAR
environment variable can also be used to configure this.
Appearance#
- browser = None#
The browser used to view documentation. The rez-help tool uses this On macOS, set this to
open -a <your-app>
if you want to use a specific app.- REZ_BROWSER#
The
REZ_BROWSER
environment variable can also be used to configure this.
- difftool = None#
The viewer used to view file diffs. On macOS, set this to
open -a <your-app>
if you want to use a specific app.- REZ_DIFFTOOL#
The
REZ_DIFFTOOL
environment variable can also be used to configure this.
- dot_image_format = "png"#
The default image format that dot-graphs are rendered to.
- REZ_DOT_IMAGE_FORMAT#
The
REZ_DOT_IMAGE_FORMAT
environment variable can also be used to configure this.
- editor = None#
The editor used to get user input in some cases. On macOS, set this to
open -a <your-app>
if you want to use a specific app.- REZ_EDITOR#
The
REZ_EDITOR
environment variable can also be used to configure this.
- image_viewer = None#
The program used to view images by tools such as
rez-context -g
On macOS, set this toopen -a <your-app>
if you want to use a specific app.- REZ_IMAGE_VIEWER#
The
REZ_IMAGE_VIEWER
environment variable can also be used to configure this.
- prefix_prompt = True#
If true, prefixes the prompt, suffixes if false. Ignored if
set_prompt
is false.- REZ_PREFIX_PROMPT#
The
REZ_PREFIX_PROMPT
environment variable can also be used to configure this.
- quiet = False#
Suppress all extraneous output (warnings, debug messages, progress indicators and so on). Overrides all
warn_xxx
anddebug_xxx settings
.- REZ_QUIET#
The
REZ_QUIET
environment variable can also be used to configure this.
- set_prompt = True#
If true, tools such as rez-env will update the prompt when moving into a new resolved shell. Prompt nerds might do fancy things with their prompt that Rez can’t deal with (but it can deal with a lot (colors etc) so try it first). By setting this to False, Rez will not change the prompt. Instead, you will probably want to set it yourself in your startup script (
.bashrc
etc). You will probably want to use the environment variableREZ_ENV_PROMPT
, which contains the set of characters that are normally prefixed/suffixed to the prompt, ie>
,>>
etc.- REZ_SET_PROMPT#
The
REZ_SET_PROMPT
environment variable can also be used to configure this.
Misc#
- create_executable_script_mode = "single"#
Default option on how to create scripts with
create_executable_script()
. In order to support both windows and other OS it is recommended to set this toboth
.Possible modes:
- single:
Creates the requested script only.
- py:
Create
.py
script that will allow launching scripts on windows, if the shell adds .py toPATHEXT
. Make sure to use PEP 397py.exe
as default application for.py
files.
- platform_specific:
Will create py script on windows and requested on other platforms
- both:
Creates the requested file and a
.py
script so that scripts can be launched without extension from windows and other systems.
- REZ_CREATE_EXECUTABLE_SCRIPT_MODE#
The
REZ_CREATE_EXECUTABLE_SCRIPT_MODE
environment variable can also be used to configure this.
- max_package_changelog_chars = 65536#
If not zero, truncates all package changelog entries to this maximum length. You should set this value. Changelogs can theoretically be very large, and this adversely impacts package load times.
- REZ_MAX_PACKAGE_CHANGELOG_CHARS#
The
REZ_MAX_PACKAGE_CHANGELOG_CHARS
environment variable can also be used to configure this.
- max_package_changelog_revisions = 0#
If not zero, truncates all package changelogs to only show the last N commits
- REZ_MAX_PACKAGE_CHANGELOG_REVISIONS#
The
REZ_MAX_PACKAGE_CHANGELOG_REVISIONS
environment variable can also be used to configure this.
- optionvars = None#
A dict type config for storing arbitrary data that can be accessed by the
optionvars()
function in packagescommands()
.This is like user preferences for packages, which may not easy to define in package’s definition file directly due to the differences between machines/users/pipeline-roles.
Example:
# in your rezconfig.py optionvars = { "userRoles": ["artist"] }
And to access:
# in package.py def commands(): roles = optionvars("userRoles", default=None) or [] if "artist" in roles: env.SOMETHING_FRIENDLY = "Yes"
Note that you can refer to values in nested dicts using dot notation:
def commands(): if optionvars("nuke.lighting_tools_enabled"): ...
- REZ_OPTIONVARS#
The
REZ_OPTIONVARS
environment variable can also be used to configure this.
- pip_extra_args = []#
Configurable pip extra arguments passed to the rez-pip install command. Since the rez-pip install command already includes some pre-configured arguments (
--target
,--use-pep517
) this setting can potentially override the default configuration in a way which can cause package installation issues. It is recommended to refrain from overriding the default arguments and only use this setting for additional arguments that might be needed. https://pip.pypa.io/en/stable/reference/pip_install/#options- REZ_PIP_EXTRA_ARGS#
The
REZ_PIP_EXTRA_ARGS
environment variable can also be used to configure this.
- pip_install_remaps#
Default:
[ # Typical bin copy behaviour # Path in record | pip installed to | copy to rez destination # ------------------------|---------------------|-------------------------- # ../../bin/* | bin/* | bin/* { "record_path": r"^{p}{s}{p}{s}(bin{s}.*)", "pip_install": r"\1", "rez_install": r"\1", }, # Fix for #821 # Path in record | pip installed to | copy to rez destination # ------------------------|---------------------|-------------------------- # ../../lib/python/* | * | python/* { "record_path": r"^{p}{s}{p}{s}lib{s}python{s}(.*)", "pip_install": r"\1", "rez_install": r"python{s}\1", }, ]
Substitutions for
re.sub()
when unknown parent paths are encountered in the pip package distribution record:name.dist-info/RECORD
Rez reads the distribution record to figure out where pip installed files to, then copies them to their final sub-path in the rez package. Ie, python source files are hard coded to be moved under the
python
sub-folder inside the rez package, which then gets added toPYTHONPATH
upon rez-env.When it can’t find the file listed in the record AND the path starts with a reference to the parent directory
..
, the following remaps are used to:Match a path listed in the record to perform the filepath remapping;
re.sub()
expression from step 1 to make the relative path of where pip actually installed the file to;re.sub()
expression from step 1 to make the destination filepath, relative to the rez variant root.
Use these tokens to avoid regular expression and OS-specific path issues:
“{pardir}” or “{p}” for parent directory:
os.pardir
, i.e...
on Linux/Mac“{sep}” or “{s}” for folder separators:
os.sep
, i.e./
on Linux/Mac
- REZ_PIP_INSTALL_REMAPS#
The
REZ_PIP_INSTALL_REMAPS
environment variable can also be used to configure this.
Rez-1 Compatibility#
These settings are for rez v1 compatibility purposes.
- debug_old_commands = False#
Print old commands and their converted rex equivalent. Note that this can cause very verbose output.
This currently has no effect.
Deprecated since version 2.114.0: Will be removed in a future version.
- REZ_DEBUG_OLD_COMMANDS#
The
REZ_DEBUG_OLD_COMMANDS
environment variable can also be used to configure this.
- disable_rez_1_compatibility = True#
If True, override all compatibility-related settings so that Rez-1 support is deprecated. This means that:
All warn/error settings in this section of the config will be set to warn=False, error=True;
rez_1_environment_variables
will be set to False.
You should aim to do this. It will mean your packages are more strictly validated, and you can more easily use future versions of Rez.
Deprecated since version 2.114.0: Will be removed in a future release.
Changed in version 3.0.0: Changed the default value to True in preparation of future removal.
- REZ_DISABLE_REZ_1_COMPATIBILITY#
The
REZ_DISABLE_REZ_1_COMPATIBILITY
environment variable can also be used to configure this.
- error_old_commands = False#
See
warn_old_commands
.Deprecated since version 2.114.0: Will be removed in a future release.
- REZ_ERROR_OLD_COMMANDS#
The
REZ_ERROR_OLD_COMMANDS
environment variable can also be used to configure this.
- rez_1_environment_variables = False#
If True, Rez will continue to generate the given environment variables in resolved environments, even though their use has been deprecated in Rez-2. The variables in question, and their Rez-2 equivalent (if any) are:
Deprecated since version 2.114.0: Will be removed in a future release.
Changed in version 3.0.0: Changed the default value to False in preparation of future removal.
REZ-1
REZ-2
REZ_REQUEST
REZ_RESOLVE
REZ_VERSION
REZ_PATH
REZ_RESOLVE_MODE
not set
REZ_RAW_REQUEST
not set
REZ_IN_REZ_RELEASE
not set
- REZ_REZ_1_ENVIRONMENT_VARIABLES#
The
REZ_REZ_1_ENVIRONMENT_VARIABLES
environment variable can also be used to configure this.
Help#
Colorization#
The following settings provide styling information for output to the console, and is based on the capabilities of the Colorama module (https://pypi.python.org/pypi/colorama).
*_fore and *_back colors are based on the colors supported by this module and the console. One or more styles can be applied using the *_styles configuration. These settings will also affect the logger used by rez.
At the time of writing, valid values are: fore/back: black, red, green, yellow, blue, magenta, cyan, white style: dim, normal, bright
- color_enabled = "posix")#
Enables/disables colorization globally.
Warning
Turned off for Windows currently as there seems to be a problem with the colorama module.
May also set to the string
force
, which will make rez output color styling information, even if the the output streams are not ttys. Useful if you are piping the output of rez, but will eventually be printing to atty
later. When force is used, will generally be set through an environment variable, eg:echo $(REZ_COLOR_ENABLED=force python -c "from rez.utils.colorize import Printer, local; Printer()('foo', local)")
TODO: Colorama is documented to work on Windows and trivial test case proves this to be the case, but it doesn’t work in Rez (with cmd.exe). If the initialise is called in src/rez/__init__.py then it does work, however this is not always desirable. As it does with with some Windows shells it can be enabled in rezconfig
- REZ_COLOR_ENABLED#
The
REZ_COLOR_ENABLED
environment variable can also be used to configure this.