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Kelvin Zhang eb586efe6f Check for existence of private key before generating OTA 
At the end of OTA generation, we will use some private key to sign the
OTA payload. Since signing happens after the payload is being generated,
if caller passes an incorrect key path, caller won't notice it until 1
hour later when delta_generator finishes. At which point caller has to
staart from scratch, pass in another key path, and wait for an hour.
Let's detect incorrect key path before calling delta_generator, so
caller will get an error message right at beginning.

Test: th
Change-Id: Iefb1e0a9ed86f82664be1675afb84c020ec28fe7
2021-02-11 19:06:09 -05:00
common Add a rule to get numbers greater or equal to a minimum number. 2020-10-29 22:29:27 +00:00
core Merge "Add build task for cts_root." 2021-02-11 14:30:39 +00:00
packaging Fix creating _dist_<goal> targets under !dist 2018-10-21 08:56:27 -07:00
target Fix pm.dexopt.first-boot for eng builds 2021-02-11 10:45:08 -08:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-01 14:26:40 -07:00
tools Check for existence of private key before generating OTA 2021-02-11 19:06:09 -05:00
.gitignore
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
Changes.md Require required modules to exist 2020-08-06 06:41:09 +00:00
CleanSpec.mk Add clean step to remove Soong's host copies of libconscrypt_openjdk_jni.so 2020-10-09 08:42:13 +00:00
Deprecation.md Obsolete unused module types 2020-04-18 21:00:18 -07:00
envsetup.sh Add outmod and installmod commands 2021-01-26 01:50:18 +00:00
help.sh Revert "Add modules partition." 2020-09-15 19:09:26 +00:00
METADATA Fix license_type. Contains GPL 2021-02-09 14:00:16 -08:00
navbar.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
OWNERS Refactor OWNERS files in platform/build/make. 2020-10-08 16:14:44 -07:00
rbesetup.sh Switch default execution strategy to racing for developer builds 2020-11-25 12:14:16 -05:00
README.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
tapasHelp.sh Remove unused mips workarounds. 2020-03-06 16:46:59 -08:00
Usage.txt Remove the PRODUCT-* goal 2019-07-29 14:27:04 -07:00

README.md

Android Make Build System

This is the Makefile-based portion of the Android Build System.

For documentation on how to run a build, see Usage.txt

For a list of behavioral changes useful for Android.mk writers see Changes.md

For an outdated reference on Android.mk files, see build-system.html. Our Android.mk files look similar, but are entirely different from the Android.mk files used by the NDK build system. When searching for documentation elsewhere, ensure that it is for the platform build system -- most are not.

This Makefile-based system is in the process of being replaced with Soong, a new build system written in Go. During the transition, all of these makefiles are read by Kati, and generate a ninja file instead of being executed directly. That's combined with a ninja file read by Soong so that the build graph of the two systems can be combined and run as one.