80c91cbdee
Integrate `go-git` into the application, and use it to `git clone` cheatsheets when the installer runs. Previously, the installer required that `git` be installed on the system `PATH`, so this change has to big advantages: 1. It removes that system dependency on `git` 2. It paves the way for implementing the `--update` command Additionally, `cheat` now performs a `--depth=1` clone when installing cheatsheets, which should at least somewhat improve installation times (especially on slow network connections).
2.0 KiB
go-billy 
The missing interface filesystem abstraction for Go.
Billy implements an interface based on the os standard library, allowing to develop applications without dependency on the underlying storage. Makes it virtually free to implement mocks and testing over filesystem operations.
Billy was born as part of go-git/go-git project.
Installation
import "github.com/go-git/go-billy/v5" // with go modules enabled (GO111MODULE=on or outside GOPATH)
import "github.com/go-git/go-billy" // with go modules disabled
Usage
Billy exposes filesystems using the
Filesystem interface.
Each filesystem implementation gives you a New method, whose arguments depend on
the implementation itself, that returns a new Filesystem.
The following example caches in memory all readable files in a directory from any billy's filesystem implementation.
func LoadToMemory(origin billy.Filesystem, path string) (*memory.Memory, error) {
memory := memory.New()
files, err := origin.ReadDir("/")
if err != nil {
return nil, err
}
for _, file := range files {
if file.IsDir() {
continue
}
src, err := origin.Open(file.Name())
if err != nil {
return nil, err
}
dst, err := memory.Create(file.Name())
if err != nil {
return nil, err
}
if _, err = io.Copy(dst, src); err != nil {
return nil, err
}
if err := dst.Close(); err != nil {
return nil, err
}
if err := src.Close(); err != nil {
return nil, err
}
}
return memory, nil
}
Why billy?
The library billy deals with storage systems and Billy is the name of a well-known, IKEA bookcase. That's it.
License
Apache License Version 2.0, see LICENSE