apk_genrule
name
def name(
*,
name: str,
default_target_platform: None | str = ...,
target_compatible_with: list[str] = ...,
compatible_with: list[str] = ...,
exec_compatible_with: list[str] = ...,
visibility: list[str] = ...,
within_view: list[str] = ...,
metadata: OpaqueMetadata = ...,
tests: list[str] = ...,
modifiers: OpaqueMetadata = ...,
_android_toolchain: str = ...,
_apple_platforms: dict[str, str] = ...,
_build_only_native_code: bool = ...,
_exec_os_type: str = ...,
_genrule_toolchain: str = ...,
_java_toolchain: str = ...,
aab: None | str = ...,
always_print_stderr: bool = ...,
apk: None | str = ...,
bash: None | str = ...,
cacheable: None | bool = ...,
cmd: None | str = ...,
cmd_exe: None | str = ...,
contacts: list[str] = ...,
default_host_platform: None | str = ...,
default_outs: None | list[str] = ...,
enable_sandbox: None | bool = ...,
environment_expansion_separator: None | str = ...,
is_cacheable: bool = ...,
keystore: None | str = ...,
labels: list[str] = ...,
licenses: list[str] = ...,
metadata_env_var: None | str = ...,
metadata_path: None | str = ...,
need_android_tools: bool = ...,
no_outputs_cleanup: bool = ...,
out: None | str = ...,
outs: None | dict[str, list[str]] = ...,
remote: None | bool = ...,
remote_execution_dependencies: list[dict[str, str]] = ...,
srcs: list[str] | dict[str, str] = ...,
type: str = ...,
use_derived_apk: bool = ...,
weight: None | int = ...,
) -> None
An apk_genrule()
rule is used to post-process an APK. What separates an apk_genrule from a genrule is apk_genrules are known by BUCK to produce APKs, so commands like buck install
or buck uninstall
still work. Additionally, apk_genrule()
rules can be inputs to other apk_genrule()
rules.
Parameters
-
name
: name of the target -
default_target_platform
: specifies the default target platform, used when no platforms are specified on the command line -
target_compatible_with
: a list of constraints that are required to be satisfied for this target to be compatible with a configuration -
compatible_with
: a list of constraints that are required to be satisfied for this target to be compatible with a configuration -
exec_compatible_with
: a list of constraints that are required to be satisfied for this target to be compatible with an execution platform -
visibility
: a list of visibility patterns restricting what targets can depend on this one -
within_view
: a list of visibility patterns restricting what this target can depend on -
metadata
: a key-value map of metadata associated with this target -
tests
: a list of targets that provide tests for this one -
modifiers
: an array of modifiers associated with this target -
aab
: The inputandroid_binary()
rule. The path to the AAB can be accessed with the$AAB
shell variable. Only one ofapk
oraab
can be provided. -
apk
: The inputandroid_binary()
rule. The path to the APK can be accessed with the$APK
shell variable. Only one ofapk
oraab
can be provided. -
bash
: A platform-specific version of the shell command parametercmd
. It runs on Linux and UNIX systems—including OSX—on whichbash
is installed. It has a higher priority thancmd
. Thebash
argument is run with/usr/bin/env bash -c
. It has access to the same set of macros and variables as thecmd
argument. -
cmd
: The shell command to run to generate the output file. It is the fallback forbash
andcmd_exe
arguments. The following environment variables are populated by Buck and available to the shell command. They are accessed using the syntax:${<variable>}
Example:
${SRCS}
${SRCS}
A string expansion of the
srcs
argument delimited by theenvironment_expansion_separator
argument where each element ofsrcs
will be translated into a relative path.${SRCDIR}
The relative path to a directory to which sources are copied prior to running the command.
${OUT}
The output file or directory for the
genrule()
. This variable will have whatever value is specified by theout
argument if not using named outputs. If using named outputs, this variable will be the output directory.The value should be a valid filepath. The semantics of the shell command determine whether this filepath is treated as a file or a directory. If the filepath is a directory, then the shell command needs to create it if not using named outputs. Otherwise, it will be automatically created. All outputs (directories and files) must be readable, writable, and (in the case of directories) executable by the current user.
The file or directory specified by this variable must always be written by this command. If not, the execution of this rule will be considered a failure, halting the build process.
${TMP}
A temporary directory which can be used for intermediate results and will not be bundled into the output.
-
cmd_exe
: A platform-specific version of the shell command parametercmd
. It runs on Windows and has a higher priority thancmd
. Thecmd_exe
argument is run withcmd.exe /v:off /c
. It has access to the same set of macros and variables as thecmd
argument. -
environment_expansion_separator
: The delimiter between paths in environment variables, such as SRCS, that can contain multiple paths. It can be useful to specify this parameter if the paths could contain spaces. -
out
: The name of the output file or directory. The complete path to this argument is provided to the shell command through theOUT
environment variable. Only one ofout
orouts
may be present.For an apk_genrule the output should be a '.apk' or '.aab' file.
-
srcs
: Either a list or a map of the source files which Buck makes available to the shell command at the path in theSRCDIR
environment variable. If you specify a list, the source files are the names in the list. If you specify a map, the source files are made available as the names in the keys of the map, where the values of the map are the original source file names. -
weight
: How many local slots these genrule should take when executing locally.
Details
Examples:
Here is an example of a couple apk_genrule()
open up an APK, do
some super signing, and then zipalign that APK again.
# Building this rule will produce a file named messenger.apk.
android_binary(
name = 'messenger',
manifest = 'AndroidManifest.xml',
target = 'Google Inc.:Google APIs:16',
keystore = '//keystores:prod',
package_type = 'release',
proguard_config = 'proguard.cfg',
deps = [
':res',
':src',
],
)
apk_genrule(
name = 'messenger_super_sign_unalign',
apk = ':messenger',
bash = '$(exe //java/com/facebook/sign:super_sign) --input $APK --output $OUT',
cmd_exe = '$(exe //java/com/facebook/sign:super_sign) --input %APK% --output %OUT%',
out = 'messenger_super_sign_unalign.apk',
)
apk_genrule(
name = 'messenger_super_sign',
apk = ':messenger_super_sign_unalign',
bash = '$ANDROID_HOME/tools/zipalign -f 4 $APK $OUT',
cmd_exe = '%ANDROID_HOME%\tools\zipalign -f 4 %APK% %OUT%',
out = 'messenger_super_sign.apk',
)