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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_library") | ||
|
|
||
| go_library( | ||
| name = "go_default_library", | ||
| srcs = ["configs.go"], | ||
| importpath = "github.com/bazelbuild/bazelisk/core/configs", | ||
| visibility = ["//visibility:public"], | ||
| deps = ["//core/path:go_default_library"], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| // Package core.configs contains the core.configs Bazelisk logic, as well as abstractions for Bazel repositories. | ||
| package configs | ||
|
|
||
| import ( | ||
| "io/ioutil" | ||
| "log" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
| "sync" | ||
|
|
||
| "github.com/bazelbuild/bazelisk/core/path" | ||
| ) | ||
|
|
||
| var ( | ||
| fileConfig map[string]string | ||
| fileConfigOnce sync.Once | ||
| ) | ||
|
|
||
| // GetEnvOrConfig reads a configuration value from the environment, but fall back to reading it from .bazeliskrc in the workspace root. | ||
| func GetEnvOrConfig(name string) string { | ||
| if val := os.Getenv(name); val != "" { | ||
| return val | ||
| } | ||
|
|
||
| // Parse .bazeliskrc in the workspace root, once, if it can be found. | ||
| fileConfigOnce.Do(func() { | ||
| workingDirectory, err := os.Getwd() | ||
| if err != nil { | ||
| return | ||
| } | ||
| workspaceRoot := path.FindWorkspaceRoot(workingDirectory) | ||
| if workspaceRoot == "" { | ||
| return | ||
| } | ||
| rcFilePath := filepath.Join(workspaceRoot, ".bazeliskrc") | ||
| contents, err := ioutil.ReadFile(rcFilePath) | ||
| if err != nil { | ||
| if os.IsNotExist(err) { | ||
| return | ||
| } | ||
| log.Fatal(err) | ||
| } | ||
| fileConfig = make(map[string]string) | ||
| for _, line := range strings.Split(string(contents), "\n") { | ||
| if strings.HasPrefix(line, "#") { | ||
| // comments | ||
| continue | ||
| } | ||
| parts := strings.SplitN(line, "=", 2) | ||
| if len(parts) < 2 { | ||
| continue | ||
| } | ||
| key := strings.TrimSpace(parts[0]) | ||
| fileConfig[key] = strings.TrimSpace(parts[1]) | ||
| } | ||
| }) | ||
|
|
||
| return fileConfig[name] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_library") | ||
|
|
||
| go_library( | ||
| name = "go_default_library", | ||
| srcs = ["path.go"], | ||
| importpath = "github.com/bazelbuild/bazelisk/core/path", | ||
| visibility = ["//visibility:public"], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| // Package core.configs contains the core.configs Bazelisk logic, as well as abstractions for Bazel repositories. | ||
| package path | ||
|
|
||
| import ( | ||
| "os" | ||
| "path/filepath" | ||
| ) | ||
|
|
||
| // isValidWorkspace returns true iff the supplied path is the workspace root, defined by the presence of | ||
| // a file named WORKSPACE or WORKSPACE.bazel | ||
| // see https://github.com/bazelbuild/bazel/blob/8346ea4cfdd9fbd170d51a528fee26f912dad2d5/src/main/cpp/workspace_layout.cc#L37 | ||
| func isValidWorkspace(path string) bool { | ||
| info, err := os.Stat(path) | ||
| if err != nil { | ||
| return false | ||
| } | ||
|
|
||
| return !info.IsDir() | ||
| } | ||
|
|
||
| // FindWorkspaceRoot find the WORKSPACE root path. | ||
| func FindWorkspaceRoot(root string) string { | ||
| if isValidWorkspace(filepath.Join(root, "WORKSPACE")) { | ||
| return root | ||
| } | ||
|
|
||
| if isValidWorkspace(filepath.Join(root, "WORKSPACE.bazel")) { | ||
| return root | ||
| } | ||
|
|
||
| parentDirectory := filepath.Dir(root) | ||
| if parentDirectory == root { | ||
| return "" | ||
| } | ||
|
|
||
| return FindWorkspaceRoot(parentDirectory) | ||
| } |
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