go - Bazel 构建缺少严格的依赖项

Question

我正在尝试使用 brazel 构建一个 Go 应用程序。这是我正在处理的现有私有(private) GitHub 存储库(位置:github.xyz.com/repo-name)，我的目标是从 main.go 文件创建一个二进制文件它的方法依赖于其他一些 Go 文件。这是我的 BUILD.bazel 文件，位于名为 e2e 的文件夹中，其中包含所有这些 go 文件:

load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")

go_binary(
    name = "e2e",
    embed = [":go_default_library"],
    visibility = ["//visibility:public"],
)

go_library(
    name = "go_default_library",
    srcs = ["main.go"],
    data = [
        "//cmd/iasd",
        "//migrations:migration_files",
        "//test/iamd:client-ca-bundle.pem",
    ] + glob(
        ["testdata/**"],
    ),
    importpath = "github.xyz.com/repo-name/test/e2e",
    visibility = ["//visibility:public"],
    deps = [
        "//test:go_default_library",
        "//vendor/github.com/bazelbuild/rules_go/go/tools/bazel:go_default_library",
        "//vendor/github.com/golang-migrate/migrate:go_default_library",
        "//vendor/github.com/golang-migrate/migrate/database/cockroachdb:go_default_library",
        "//vendor/github.com/golang-migrate/migrate/source/file:go_default_library",
        "//vendor/github.com/google/uuid:go_default_library",
        "//vendor/github.com/lib/pq:go_default_library",
        "//vendor/github.com/pkg/errors:go_default_library",
        "//vendor/google.golang.org/grpc:go_default_library",
        "//vendor/google.golang.org/grpc/credentials:go_default_library",
        "//api/grpc/v1/applications:go_default_library",
        "//api/grpc/v1/clients:go_default_library",
        "//pkg/oauth2/mtls:go_default_library",
        "//vendor/github.com/coreos/go-oidc:go_default_library",
        "//vendor/github.com/dgrijalva/jwt-go:go_default_library",
        "//vendor/golang.org/x/oauth2:go_default_library",
    ],
)

这就是导入在我的 main.go 文件中的样子:

import (
    "context"
    "crypto/tls"
    "encoding/json"
    "io/ioutil"
    "net/http"
    "net/url"
    "strings"
    "time"
    "log"
    "fmt"
    "io"
    "os"

    "github.com/pkg/errors"
    "github.com/coreos/go-oidc"
    "github.com/dgrijalva/jwt-go"
    "github.xyz.com/repo-name/api/grpc/v1/applications"
    "github.xyz.com/repo-name/api/grpc/v1/clients"
    "github.xyz.com/repo-name/pkg/oauth2/mtls"
    "github.xyz.com/repo-name/test/e2e"
    "github.xyz.com/repo-name/test"
    "golang.org/x/oauth2"
    "google.golang.org/grpc"
)

现在执行命令 bazel run//test/e2e:e2e 时，出现以下错误:

compilepkg: missing strict dependencies:
    /private/var/tmp/_bazel_<myname>/a9b32769d59e90b5398bc5d8a988c877/sandbox/darwin-sandbox/394/execroot/github_xyz_com_repo_name/test/e2e/main.go: import of "github.xyz.com/repo-name/test/e2e"
No dependencies were provided.

这是因为我的主文件中导入了github.xyz.com/repo-name/test/e2e。要包含导入，如果我将其添加到 deps 中的 BUILD.bazel 文件中:"//test/e2e:go_default_library" 它最终会出现此错误:

"//test/e2e:go_default_library: cycle in dependency graph:
    //test/e2e:e2e
.-> //test/e2e:go_default_library [self-edge]"

我了解错误的上下文，但我想不出合适的方法来解决它。我应该在 BUILD.bazel 文件中进行哪些更改才能正确包含依赖项？

Answer 1

我通过将我的 main.go 文件添加到 e2e 文件夹内的新文件夹中解决了这个问题(同时将帮助程序文件保留在 e2e 文件夹中)。这样，当我将 main.go 文件的依赖项添加到辅助文件时，它不会导致循环依赖项错误。