Public API for expand template

expand_template_rule

Template expansion

This performs a simple search over the template file for the keys in substitutions, and replaces them with the corresponding values.

Values may also use location templates as documented in expand_locations as well as configuration variables such as $(BINDIR), $(TARGET_CPU), and $(COMPILATION_MODE) as documented in expand_variables.

ATTRIBUTES

NameDescriptionTypeMandatoryDefault
nameA unique name for this target.Namerequired
dataList of targets for additional lookup information.List of labelsoptional[]
outWhere to write the expanded file.

If the template is a source file, then out defaults to be named the same as the template file and outputted to the same workspace-relative path. In this case there will be no pre-declared label for the output file. It can be referenced by the target label instead. This pattern is similar to copy_to_bin but with substitutions on the copy.

Otherwise, out defaults to [name].txt.
LabeloptionalNone
is_executableWhether to mark the output file as executable.BooleanoptionalFalse
stampWhether to encode build information into the output. Possible values:

- stamp = 1: Always stamp the build information into the output, even in --nostamp builds. This setting should be avoided, since it is non-deterministic. It potentially causes remote cache misses for the target and any downstream actions that depend on the result. - stamp = 0: Never stamp, instead replace build information by constant values. This gives good build result caching. - stamp = -1: Embedding of build information is controlled by the --[no]stamp flag. Stamped targets are not rebuilt unless their dependencies change.
Integeroptional-1
stamp_substitutionsMapping of strings to substitutions.

There are overlaid on top of substitutions when stamping is enabled for the target.

Substitutions can contain $(execpath :target) and $(rootpath :target) expansions, $(MAKEVAR) expansions and {{STAMP_VAR}} expansions when stamping is enabled for the target.
Dictionary: String -> Stringoptional{}
substitutionsMapping of strings to substitutions.

Substitutions can contain $(execpath :target) and $(rootpath :target) expansions, $(MAKEVAR) expansions and {{STAMP_VAR}} expansions when stamping is enabled for the target.
Dictionary: String -> Stringoptional{}
templateThe template file to expand.Labelrequired

expand_template

Wrapper macro for expand_template_rule.

PARAMETERS

NameDescriptionDefault Value
namename of resulting rulenone
templatethe label of a template file, or a list of strings which are lines representing the content of the template.none
kwargsother named parameters to expand_template_rule.none