Does anyone know where I can find an example of a gRPC protobuf file that imports from a different file and uses a protobuf message in a return? I can't find any at all.
I have a file...
syntax = "proto3";
package a1;
import "a.proto";
service mainservice {
rpc DoSomething(...) returns (a.SomeResponse) {}
}
a.proto is also in the same directory and also compiles by itself. The error messages I'm getting are:
"a.SomeResponse" is not defined.
mainfile.proto: warning: Import a.proto but not used.
Found the answer... need to make sure the package name of a.proto is used when specifying the object imported (eg: a_package_name.SomeResponse). Example:
base.proto
syntax = "proto3";
option csharp_namespace = "Api.Protos";
package base;
message BaseResponse {
bool IsSuccess = 1;
string Message = 2;
}
user.proto
syntax = "proto3";
import "Protos/base.proto";
option csharp_namespace = "Api.Protos";
package user;
message UserCreateResponse {
base.BaseResponse response = 1;
}
Seems import from root but not current proto file's folder. So you need add 'Proto/a.proto' if all your proto files are under Proto folder.
Related
By default Yocto adds build timestamp to the output image file name, but I would like to replace it by the revision of my integration Git repository (which references all my layers and configuration files). To achieve this, I put the following code to my image recipe:
def get_image_version(d):
import subprocess
import os.path
try:
parentRepo = os.path.dirname(d.getVar("COREBASE", True))
return subprocess.check_output(["git", "describe", "--tags", "--long", "--dirty"], cwd = parentRepo, stderr = subprocess.DEVNULL).strip().decode('UTF-8')
except:
return d.getVar("MACHINE", True) + "-" + d.getVar("DATETIME", True)
IMAGE_VERSION = "${#get_image_version(d)}"
IMAGE_NAME = "${IMAGE_BASENAME}-${IMAGE_VERSION}"
IMAGE_NAME[vardepsexclude] = "IMAGE_VERSION"
This code works properly until I change Git revision (e.g. by adding a new commit). Then I receive the following error:
ERROR: When reparsing /home/ubuntu/yocto/poky/../mylayer/recipes-custom/images/core-image-minimal.bb.do_image_tar, the basehash value changed from 63e1e69797d2813a4c36297517478a28 to 9788d4bf2950a23d0f758e4508b0a894. The metadata is not deterministic and this needs to be fixed.
I understand this happens because the image recipe has already been parsed with older Git revision, but why constant changes of the build timestamp do not cause the same error? How can I fix my code to overcome this problem?
The timestamp does not have this effect since its added to vardepsexclude:
https://docs.yoctoproject.org/bitbake/bitbake-user-manual/bitbake-user-manual-metadata.html#variable-flags
[vardepsexclude]: Specifies a space-separated list of variables that should be excluded from a variable’s dependencies for the purposes of calculating its signature.
You may need to add this in a couple of places, e.g.:
https://git.yoctoproject.org/poky/tree/meta/classes/image-artifact-names.bbclass#n7
IMAGE_VERSION_SUFFIX ?= "-${DATETIME}"
IMAGE_VERSION_SUFFIX[vardepsexclude] += "DATETIME SOURCE_DATE_EPOCH"
IMAGE_NAME ?= "${IMAGE_BASENAME}-${MACHINE}${IMAGE_VERSION_SUFFIX}"
After some research it turned out the problem was in this line
IMAGE_VERSION = "${#get_image_version(d)}"
because the function get_image_version() was called during parsing. I took inspiration from the source file in aehs29's post and moved the code to the anonymous Python function which is called after parsing.
I also had to add vardepsexclude attribute to the IMAGE_NAME variable. I tried to add vardepvalue flag to IMAGE_VERSION variable as well and in this particular case it did the same job as vardepsexclude. Mentioned Bitbake class uses both flags, but I think in my case using only one of them is enough.
The final code is below:
IMAGE_VERSION ?= "${MACHINE}-${DATETIME}"
IMAGE_NAME = "${IMAGE_BASENAME}-${IMAGE_VERSION}"
IMAGE_NAME[vardepsexclude] += "IMAGE_VERSION"
python () {
import subprocess
import os.path
try:
parentRepo = os.path.dirname(d.getVar("COREBASE", True))
version = subprocess.check_output(["git", "describe", "--tags", "--long", "--dirty"], cwd = parentRepo, stderr = subprocess.DEVNULL).strip().decode('UTF-8')
d.setVar("IMAGE_VERSION", version)
except:
bb.warning("Could not get Git revision, image will have default name.")
}
EDIT:
After some research I realized it's better to define a global variable in layer.conf file of the layer containing the recipes referencing the variable. The variable is set by a python script and is immediately expanded to prevent deterministic build warning:
layer.conf:
require conf/image-version.py.inc
IMAGE_VERSION := "${#get_image_version(d)}"
image-version.py.inc:
def get_image_version(d):
import subprocess
import os.path
try:
parentRepo = os.path.dirname(d.getVar("COREBASE", True))
return subprocess.check_output(["git", "describe", "--tags", "--long", "--dirty"], cwd = parentRepo, stderr = subprocess.DEVNULL).strip().decode('UTF-8')
except:
bb.warn("Could not determine image version. Default naming schema will be used.")
return d.getVar("MACHINE", True) + "-" + d.getVar("DATETIME", True)
I think this is cleaner approach which fits BitBake build system better.
I have a class that I want to share between different files or computers? I can pickle and load it from the same jupyter notebook. However, I cannot load it from a different machine/or different notebook. I have tried the following,
Initialize and and save from a jupyter notebook
# Simplified class definition
class MyClass:
def __init__(self, name):
self.name = name
self.dataToIndex = {}
self.index = 0
def addData(self, dataReceived):
self.dataToIndex[dataReceived] = self.index
self.index += 1
# initialize
my_dataset = MyClass("My_test_dataset")
# add some data
my_dataset.addData("One")
my_dataset.addData("Two")
# check data
my_dataset.dataToIndex
# save from one juputer notebook
import pickle
with open("path.obj", "wb") as inp:
pickle.dump(my_dataset, inp, pickle.HIGHEST_PROTOCOL)
# Read from the same jupyter notebook
with open("path.obj", 'rb') as inp:
transferred = pickle.load(inp)
# Output looks good
transferred.dataToIndex
{'One': 0, 'Two': 1}
Read from the new jupyter notebook
import pickle
with open("path.obj", 'rb') as inp:
transferred = pickle.load(inp)
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-1-44a1a18ebb1b> in <module>
2 # Read from the same jupyter notebook
3 with open("path.obj", 'rb') as inp:
----> 4 transferred = pickle.load(inp)
AttributeError: Can't get attribute 'MyClass' on <module '__main__'>
Now, I want to be able to load into a different python script on in a different jupyter notebook.
I have checked this, Saving an Object (Data persistence)
and
https://www.stefaanlippens.net/python-pickling-and-dealing-with-attributeerror-module-object-has-no-attribute-thing.html
But could not figure out a solution. Any help is appreciated.
There is a tons of helpful posts on this. However, most of those fall under, how to save from within the class etc. For a future beginner like me, I just want to provide a simple solution that worked for me.
Take the class out of the notebook and put in a script like, my_class_def.py
class MyClass:
def __init__(self, name):
self.name = name
self.dataToIndex = {}
self.index = 0
def addData(self, dataReceived):
self.dataToIndex[dataReceived] = self.index
self.index += 1
Then use the pickle to save as it is.
In the different(new) script, import the class first using,
from my_class_def import MyClass
and then load the picked file.
i am learning imagepicker from https://pub.dev/packages/image_picker ,
but i don't why i got an error when i have use the way step by step.
this is the problem :
first, i declare a File variable
File _imageFile ;
then i use it in a method,
_getimg() async{
var _img = await ImagePicker(source: ImageSource.gallery);
setState(() {
_imageFile = _img ;
});
}
and then i got this error :
A value of type 'File (where File is defined in
D:\Flutter\flutter\bin\cache\pkg\sky_engine\lib\io\file.dart)' can't
be assigned to a variable of type 'File (where File is defined in
D:\Flutter\flutter\bin\cache\pkg\sky_engine\lib\html\html_dart2js.dart)'.
There is a conflict between Files declaration. The html package has one declaration of a class File and the io package has another declaration (same name, different origin).
In fact, using html is for web and io is used for console, server or mobile apps, so check your imports and delete io or html depending in the type of project you are working on.
Another solution is to define your imports like this:
import 'package:html/html.dart' as h; //"h" can change, is just an example
import 'dart:io' as i; //"i" also can be another char or word, is just an example
//And when you need to create a File,
//you can decide if you want to create
//an io File or an html File
main(){
i.File f1 = ...; //The io File, starting with "i."
h.File f2 = ...; //The html File, starting with "h."
}
I have imported five libraries in my .ts file as below. When I compile the file using TS 1.8 compiler it only add three imports to .js file resulting undefined VssService and ExtensionDataService. Does anyone know how to resolve this?
Imports in .ts file
import VssService = require('VSS/Service');
import ExtensionDataService = require('VSS/SDK/Services/ExtensionData');
import tl = require('vsts-task-lib/task');
import url = require('url');
import path = require('path');
Compiled .js
var tl = require('vsts-task-lib/task');
var url = require('url');
var path = require('path');
Thanks-
First, make sure you add VSS.d.ts reference.
Secondly, based on my test, it won’t generate related code if the variable not be used. I added console.log(VssService) and console.log(ExtensionDataService), then these code is generated.
I searched high and low for this issue and, while I found reports of the same error ubiquitously, I didn't find this specific error and can't seem to resolve it. I'm just now learning Dart and am following the Angular-Dart tutorial, and I keep getting this error early on, with no explanation that I can find. This is my badge_controller file:
library s1_basics.badge_controller;
import 'package:angular/angular.dart';
#NgController(
selector: '[badge-controller]',
publishAs: 'ctrl'
)
class BadgeController {
static const DEFAULT_NAME = 'Anne Bonney';
static const LABEL1 = 'Arrr! Write yer name!';
static const LABEL2 = 'Aye! Gimme a name!';
String name = '';
bool get inputIsNotEmpty => name.trim().isNotEmpty;
String get label => inputIsNotEmpty ? LABEL1 : LABEL2;
generateName() {
name = DEFAULT_NAME;
}
}
And this is my pirate_module file:
library s1_basics.pirate_module;
import 'package:angular/angular.dart';
import 'package:s1_basics/badge_controller.dart';
class PirateModule extends Module {
PirateModule() {
type(BadgeController);
}
}
I'm so early on in this tutorial that I don't think there's much else that I can show to debug this, but if anyone has an idea, I'd greatly appreciate it. Cheers!
Changing the import paths to be relative references for the imported files seems to fix it; i.e. initially this gave errors:
import 'package:s1_basics/pirate_module.dart';
but after changing it to
import '../lib/pirate_module.dart';
it worked...so that's the fix (for this) if anyone out there has issues.