Is there a way to link with a library that's not in the current package path.
This link suggests placing everything under the local directory. Our packages are installed in some repository elsewhere. I just want to specify the libpath to it on windows.
authors = ["Me"]
links = "CDbax"
[target.x86_64-pc-windows-gnu.CDbax]
rustc-link-lib = ["CDbax"]
rustc-link-search = ["Z:/Somepath//CPP/CDbax/x64/Debug/"]
root = "Z:/Somepath//CPP/CDbax/x64/Debug/"
But trying cargo build -v gives me
package `hello v0.1.0 (file:///H:/Users/Mushfaque.Cradle/Documents/Rustc/hello)` specifies that it links to `CDbax` but does not have a custom build script
From the cargo build script support guide, it seems to suggest that this should work. But I can see that it hasn't added the path. Moving the lib into the local bin\x68_64-pc-windows-gnu\ path works however.
Update
Thanks to the answer below, I thought I'd update this to give the final results of what worked on my machine so others find it useful.
In the Cargo.toml add
links = "CDbax"
build = "build.rs"
Even though there is no build.rs file, it seems to require it (?) otherwise complains with
package `xxx v0.1.0` specifies that it links to `CDbax` but does not have a custom build script
Followed by Vaelden answer's create a 'config' file in .cargo
If this is a sub crate, you don't need to put the links= tag in the parent crate, even though it's a dll; even with a 'cargo run'. I assume it adds the dll path to the execution environment
I think the issue is that you are mistaking the manifest of your project with the cargo
configuration.
The manifest is the Cargo.toml file at the root of your project. It describes your project itself.
The cargo configuration describes particular settings for cargo, and allow for example to override dependencies, or in your case override build scripts. The cargo configuration files have a hierarchical structure:
Cargo allows to have local configuration for a particular project or
global configuration (like git). Cargo also extends this ability to a
hierarchical strategy. If, for example, cargo were invoked in
/home/foo/bar/baz, then the following configuration files would be
probed for:
/home/foo/bar/baz/.cargo/config
/home/foo/bar/.cargo/config
/home/foo/.cargo/config
/home/.cargo/config
/.cargo/config
With this structure you can specify local configuration per-project,
and even possibly check it into version control. You can also specify
personal default with a configuration file in your home directory.
So if you move the relevant part:
[target.x86_64-pc-windows-gnu.CDbax]
rustc-link-lib = ["CDbax"]
rustc-link-search = ["Z:/Somepath//CPP/CDbax/x64/Debug/"]
root = "Z:/Somepath//CPP/CDbax/x64/Debug/"
to any correct location for a cargo configuration file, it should work.
Related
I successfully used rules_go to build a gRPC service:
go_proto_library(
name = "processor_go_proto",
compilers = ["#io_bazel_rules_go//proto:go_grpc"],
importpath = "/path/to/proto/package",
proto = ":processor_proto",
deps = ["//services/shared/proto/common:common_go_proto"],
)
However, I'm not sure how to import the resulting file in VSCode. The generated file is nested under bazel_bin and under the original proto file path; so to import this, it seems like I would need to write out the entire path (including the bazel_bin part) to the generated Go file. To my understanding, there doesn't seem to be a way to instruct VSCode to look under certain folders that only contain Go packages/files; everything seems to need a go.mod file. This makes it quite difficult to develop in.
For clarity, my directory structure looks something like this:
WORKSPACE
bazel-bin
- path
- to
- generated_Go_file.go
go.mod
go.sum
proto
- path
- to
- gRPC_proto.proto
main.go
main.go should use the generated_Go_file.go.
Is there a way around this?
I don't use Bazel and so cannot help with the Bazel configuration. It's likely there is a way to specify the generated code location so that you can revise this to reflect you preference.
The outline you provide of the generated code, is workable though and a common pattern. Often the generated proto|gRPC code is placed in a module's gen subdirectory.
This is somewhat similar to vendoring where your code incorporates what may often be a 3rd-party's stubs (client|server) into your code. The stubs must reflect the proto(s) package(s) and, when these are 3rd-party, using gen or bazel-bin provide a way to keep potentially multiple namespaces discrete.
You're correct that the import for main.go, could (!) be prefixed with the module name from go.mod (first line) followed by the folder path to the generated code. This is standard go packaging and treats the generated code in a similar way to vendored modules.
Another approach is to use|place the generated code in a different module.
For code generated from 3rd-party protos, this may be preferable and the generated code may be provided by the 3rd-party in a module that you can go get or add to your go.mod.
An example of this approach is Google Well-Known Types. The proto (sources) are bundled with protoc (lib directory) and, when protoc compiles sources that references any of these, the Go code that is generated includes imports that reference a Google-hosted location of the generated code (!) for these types (google.golang.org/protobuf/types/known).
Alternatively, you can replicate this behavior without having to use an external repo. The bazel-bin folder must be outside of the current module. Each distinct module in bazel-bin, would need its own go.mod file. You would include in a require block in your code's go.mod file references to the modules' (one or more) locations. You don't need to publish the module to a external repo but can simply require ( name => path/to/module ) to provide a local reference.
Facebook's Pysa tool looks useful, in the Pysa tutorial exercises they refer to files that are provided in the pyre-check repository using a relative path to include a path outside of the exercise directory.
https://github.com/facebook/pyre-check/blob/master/pysa_tutorial/exercise1/.pyre_configuration
{
"source_directories": ["."],
"taint_models_path": ["."],
"search_path": [
"../../stubs/"
],
"exclude": [
".*/integration_test/.*"
]
}
There are stubs provided for Django in the pyre-check repository which if I know the path where pyre check is installed I can hard-code in my .pyre_configuration and get something working but another developer may install pyre-check differently.
Is there a better way to refer to these provided stubs or should I copy them to the repository I'm working on?
Many projects have a standard development environment, allowing for hard coded paths in the .pyre_configuration file. These will usually point into the venv, or some other standard install location for dependencies.
For projects without a standard development environment, you could trying incorporating pyre init into your setup scripts. pyre init will setup a fresh .pyre_configuration file with paths that correspond to the current install of pyre. For additional configuration you want to add on top of the generated .pyre_configuration file (such as a pointer to local taint models), you can hand write a .pyre_configuration.local, which will act as an overlay and overwrite/add to the content of .pyre_configuration.
Pyre-check looks for the stubs in the directory specified by the typeshed directive in the configuration file.
The easiest way is to move stubs provided for Django in the pyre-check repository to the typeshed directory that is in the pyre-check directory.
For example, if you have installed pyre-check to the ~/.local/lib directory, move the django directory from ~/.local/lib/pyre_check/stubs to ~/.local/lib/pyre_check/typeshed/third_party/2and3/ and make sure your .pyre_configuration file will look like this:
{
"source_directories": ["~/myproject"],
"taint_models_path": "~/myproject/taint",
"typeshed": "~/.local/lib/pyre_check/typeshed"
}
In this case, your Django stubs directory will be ~/.local/lib/pyre_check/typeshed/third_parth/2and3/django
Pyre-check uses the following algorithm to traverse across the typeshed directory:
If it contains the third_party subdirectory, it uses a legacy method: enters just the two subdirectories: stdlib and third_party and there looks for any subdirectory except those with names starting with 2 but not 2and3, and looks for the modules in those subdirectories like 2and3, e.g. in third_party/2and3/
Otherwise, it enters the subdirectories stubs and stdlib, and looks for modules there, e.g. in stubs/, but not in stubs/2and3/.
That's why specifying multiple paths may be perplexing and confusing, and the easiest way is to setup the typeshed directory to ~/.local/lib/pyre_check/typeshed/ and move django to third_parth/2and3, so it will be ~/.local/lib/pyre_check/typeshed/third_parth/2and3/django.
Also don't forget to copy the .pysa files that you need to the taint_models_path directory. Don't set it up to the directory of the Pyre-check, create your own new directory and copy only those files that are relevant to you.
I am trying to browse code for gVisor with VScode.
However, unlike other Go projects, gVisor is built with bazel, and the source code is not located under $GOROOT or $GOPATH. Maybe this prevents gVisor packages from being searched by VSCode go extension. Go-to-definition is not working in most cases, except for cases where the definition can be found under the same directory.
How can I setup VSCode with bazel Go projects? Especially gVisor. Thanks!
The linked gVisor rule now proxies a more canonical implementation
This setup worked for me:
In your workspace's root BUILD file you can add the following build rule
# in BUILD.bazel
load("#io_bazel_rules_go//go:def.bzl", "go_path")
go_path(
name = "gopath",
mode = "link",
deps = [
"//my/binary/here",
"//any/other/binaries/you/want/linked",
],
)
(if you don't yet have a gazelle import for the bazelbuild/go_rules, you would need to import it for bazel)
# in WORKSPACE
http_archive(
name = "io_bazel_rules_go",
sha256 = "8e968b5fcea1d2d64071872b12737bbb5514524ee5f0a4f54f5920266c261acb",
urls = [
"https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.28.0/rules_go-v0.28.0.zip",
"https://github.com/bazelbuild/rules_go/releases/download/v0.28.0/rules_go-v0.28.0.zip",
],
)
Build this command to create a symlinked folder in your blaze-out at bazel-bin/gopath that contains links to each of your dependencies. You'll have to do this any time you add a new dependency. You will see a line for each symlink created.
bazel build :gopath
(assuming you're using VSCode with the Golang extension) Set your workspace settings for the go extension to point to this gopath. Note you'll need to have it be a worspace trusted extension in order for this to work.
// In .vscode/settings.json
{
"go.gopath": "/YOUR ABSOLUTE PATH TO YOUR WORKSPACE//bazel-bin/gopath"
}
Restart VSCode
Enjoy!
NOTE: if you have a go.mod file in your root dir, this will not work.
gVisor recently added a gopath BUILD rule that creates a canonical GOPATH tree from the source.
You may be able to use that the edit more effectively from VScode.
I want to add a subproject to my Gradle project. The project is located somewhere on my hard disk drive, for example:
/A/Path/to/a/ProjectA
/Another/Path/to/another/ProjectB
What I want to achieve is to use ProjectB as a source module within Project A. However, all my attempts to do this so far - either by adding include /Another/Path/to/another/ProjectB or by adding include ':ProjectB'; project(':ProjectB').projectDir = ... in settings.gradle - just failed. Apparently, Gradle is not able to find the project.
How can I add ProjectB as a dependency without moving it from it's location?
Using Gradle 3.4.1, the following works for me (full example here):
include 'app', 'common'
def MY_PATH = '/Users/johndoe/foo'
assert new File("$MY_PATH/random/path/common").exists()
project(':common').projectDir = new File("$MY_PATH/random/path/common")
Thanks for your responses.
Turns out I've made several mistakes:
Adding the project to the built was dependent on the value of an environment variable. I replaced that with a property within gradle.properties.
I tested this by running the settings.gradle usind IntelliJ. I mistakingly expected this to work, but it didn't
I did not add the project as a dependency to the build.gradle file of the parent project.
It works now. Thank you all again!
Caused by: org.gradle.api.GradleException: Could not create ZIP '/jenkins/repository/workspace/profile/build/libs/../profile.jar'.
Project
common << I build under this directory
profile
build.gradle(in common)
...
dependencies {
compile project(':../profile')
...
settings.gradle(in common)
include '../profile'
It works on windows environment. But it does not work on linux environment even using root account
The project paths accepted by the include and project methods are logical paths, not physical paths. They cannot contain a ... Physical paths must be declared separately in settings.gradle (if they divert from the logical path). The easiest way to declare a flat physical directory layout is to use the includeFlat method:
common/settings.gradle
includeFlat 'profile'
common/build.gradle
dependencies {
compile project(':profile')
}
You can find more information on this topic in the "multi-project builds" chapter of the Gradle User Guide.
Another common issue that can happen here especially if you're using windows is you could have opened the previous jar up in 7zip or some other tool and that's causing the file to be locked. To test this try to delete the jar that's sitting in build/libs if you can't delete the file it's locked by another program more than likely. :D
An even shorter way to fix this: Add the following line to the build.gradle file of the included profile project:
archivesBaseName = 'profile'
This overwrites the default name of the jar.