Dots

dots is a Go package that provides advanced wildcard file and package matching, similar to the behavior used by tools like go test and golint. It allows you to easily resolve file paths and packages using patterns with ... wildcards, and supports flexible exclusion rules.

Usage

import (
	"fmt"

	"github.com/mgechev/dots"
)

func main() {
	result, err := dots.Resolve([]string{"./fixtures/..."}, []string{"./fixtures/foo"})
	for _, f := range result {
		fmt.Println(f);
	}
}

If we suppose that we have the following directory structure:

├── README.md
├── fixtures
│   ├── bar
│   │   ├── bar1.go
│   │   └── bar2.go
│   ├── baz
│   │   ├── baz1.go
│   │   ├── baz2.go
│   │   └── baz3.go
│   └── foo
│       ├── foo1.go
│       ├── foo2.go
│       └── foo3.go
└── main.go

The result will be:

fixtures/bar/bar1.go
fixtures/bar/bar2.go
fixtures/baz/baz1.go
fixtures/baz/baz2.go
fixtures/baz/baz3.go

dots supports wildcard in both - the first and the last argument of Resolve, which means that you can ignore files based on a wildcard:

dots.Resolve([]string{"github.com/mgechev/dots"}, []string{"./..."}) // empty list
dots.Resolve([]string{"./fixtures/bar/..."}, []string{"./fixture/foo/...", "./fixtures/baz/..."}) // bar1.go, bar2.go

Preserve package structure

dots allow you to receive a slice of slices where each nested slice represents an individual package:

dots.ResolvePackages([]string{"github.com/mgechev/dots/..."}, []string{})

So we will get the result:

[
  [
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/bar/bar1.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/bar/bar2.go"
  ],
  [
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/baz/baz1.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/baz/baz2.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/baz/baz3.go"
  ],
  [
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/foo/foo1.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/foo/foo2.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/foo/foo3.go"
  ],
  [
    "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/baz/baz1.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/baz/baz2.go"
  ],
  [
    "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/foo/foo1.go",
    "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/foo/foo2.go"
  ],
  [
    "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/foo/bar/bar1.go"
  ]
]

This method is especially useful, when you want to perform type checking over given package from the result.