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# `dumpstate` development tips
## To build `dumpstate`
Do a full build first:
```
m -j dumpstate
```
Then incremental ones:
```
mmm -j frameworks/native/cmds/dumpstate
```
If you're working on device-specific code, you might need to build them as well.
Example:
```
mmm -j frameworks/native/cmds/dumpstate device/acme/secret_device/dumpstate/ hardware/interfaces/dumpstate
```
## To build, deploy, and take a bugreport
```
mmm -j frameworks/native/cmds/dumpstate && adb push ${OUT}/system/bin/dumpstate system/bin && adb push ${OUT}/system/lib64/*dumpstate*.so /system/lib64/ && adb shell am bug-report
```
Make sure that the device is remounted before running the above command. * If
you're working with `userdebug` variant, you may need to run the following to
remount your device:
```
adb root && adb remount -R && adb wait-for-device && adb root && adb remount
```
* If you're working with `eng` variant, you may need to run the following to
remount your device:
```
adb root && adb remount
```
## To build, deploy, and run unit tests
First create `/data/nativetest64`:
```
adb shell mkdir /data/nativetest64
```
Then run:
```
mmm -j frameworks/native/cmds/dumpstate/ && adb push ${OUT}/data/nativetest64/dumpstate_* /data/nativetest64 && adb shell /data/nativetest64/dumpstate_test/dumpstate_test
```
And to run just one test (for example, `DumpstateTest.RunCommandNoArgs`):
```
mmm -j frameworks/native/cmds/dumpstate/ && adb push ${OUT}/data/nativetest64/dumpstate_test* /data/nativetest64 && adb shell /data/nativetest64/dumpstate_test/dumpstate_test --gtest_filter=DumpstateTest.RunCommandNoArgs
```
## To take quick bugreports
```
adb shell setprop dumpstate.dry_run true
```
## To emulate a device with user build
```
adb shell setprop dumpstate.unroot true
```
## To change the `dumpstate` version
```
adb shell setprop dumpstate.version VERSION_NAME
```
Example:
```
adb shell setprop dumpstate.version split-dumpsys && adb shell dumpstate -v
```
Then to restore the default version:
```
adb shell setprop dumpstate.version default
```
## To set Bugreport API workflow for bugreport
```
adb shell setprop settings_call_bugreport_api true
```
## Code style and formatting
Use the style defined at the
[Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html) and
make sure to run the following command prior to `repo upload`:
```
git clang-format --style=file HEAD~
```
## Useful Bash tricks
```
export BR_DIR=/bugreports
alias br='adb shell cmd activity bug-report'
alias ls_bugs='adb shell ls -l ${BR_DIR}/'
unzip_bug() {
adb pull ${BR_DIR}/$1 && emacs $1 && mv $1 /tmp
}
less_bug() {
adb pull ${BR_DIR}/$1 && less $1 && mv $1 /tmp
}
rm_bugs() {
if [ -z "${BR_DIR}" ] ; then echo "Variable BR_DIR not set"; else adb shell rm -rf ${BR_DIR}/*; fi
}
```
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