README.md - third_party/Masterminds/glide - Git at Google

 # Glide: The Lightweight Vendor Package Manager

 *Manage your vendor and vendored packages with ease.* Glide is a tool for
 managing the `vendor` directory within a Go package. This feature, first
 introduced in Go 1.5, allows each package to have a `vendor` directory
 containing dependent packages for the project. These vendor packages can be
 installed by a tool (e.g. glide), similar to `go get` or they can be vendored and
 distributed with the package.

 [![Build Status](https://travis-ci.org/Masterminds/glide.svg)](https://travis-ci.org/Masterminds/glide)

 ### Features

 * Ease dependency management
 * Support **versioning packages**
 * Support **aliasing packages** (e.g. for working with github forks)
 * Remove the need for munging import statements
 * Work with all of the `go` tools
 * Support the VCS tools that Go supports:
     - git
     - bzr
     - hg
     - svn
 * Support custom local and global plugins (see docs/plugins.md)

 ## How It Works

 The dependencies for a project are listed in a `glide.yaml` file. This can
 include a version, VCS, repository location (that can be different from the
 package name), etc. When `glide up` is run it downloads the packages (or updates)
 to the `vendor` directory. It then recursively walks through the downloaded
 packages looking for those with a `glide.yaml` file that don't already have
 a `vendor` directory and installing their dependencies to their `vendor`
 directories.

  A projects is structured like this:

 ```
 - myProject (Your project)
   |
   |-- glide.yaml
   |
   |-- main.go (Your main go code can live here)
   |
   |-- mySubpackage (You can create your own subpackages, too)
   |    |
   |    |-- foo.go
   |
   |-- vendor
        |-- github.com
             |
             |-- Masterminds
                   |
                   |-- ... etc.
 ```

 *Take a look at [the Glide source code](http://github.com/Masterminds/glide)
 to see this philosophy in action.*

 ## Install

 On Mac OS X you can install the latest release via [Homebrew](https://github.com/Homebrew/homebrew):

 ```
 $ brew install glide
 ```

 [Binary packages](https://github.com/Masterminds/glide/releases) are available for Mac and Linux.

 To build from source you can:

 1. Clone this repository and change directory into it
 2. Run `make bootstrap`

 This will leave you with `./glide`, which you can put in your `$PATH` if
 you'd like. (You can also take a look at `make install` to install for
 you.)

 The Glide repo has now been configured to use glide to
 manage itself, too.

 ## Usage

 ```
 $ glide create                            # Start a new workspaces
 $ open glide.yaml                         # and edit away!
 $ glide get github.com/Masterminds/cookoo # Get a package and add to glide.yaml
 $ glide install                           # Install packages and dependencies
 # work, work, work
 $ go build                                # Go tools work normally
 $ glide up                                # Update to newest versions of the package
 ```

 Check out the `glide.yaml` in this directory, or examples in the `docs/`
 directory.

 ### glide create [optional package name]

 Initialize a new workspace. Among other things, this creates a stub
 `glide.yaml`

 ```
 $ glide create
 [INFO] Initialized. You can now edit 'glide.yaml'
 ```

 If an optional package name is specified, Glide will add it to
 glide.yaml as the name of your project.

 ### glide get [package name]

 You can download package to your `vendor` directory and have it added to your
 `glide.yaml` file with `glide get`.

 ```
 $ glide get github.com/Masterminds/cookoo
 ```

 ### glide up (aliased to update and install)

 Download or update all of the libraries listed in the `glide.yaml` file and put
 them in the `vendor` directory. It will also recursively walk through the
 dependency packages doing the same thing if no `vendor` directory exists.

 ```
 $ glide up
 ```

 ### glide rebuild

 Re-run `go install` on the packages in the `glide.yaml` file. This
 (along with `glide install` and `glide update`) pays special attention
 to the contents of the `subpackages:` directive in the YAML file.

 ```
 $ glide rebuild
 [INFO] Building dependencies.
 [INFO] Running go build github.com/kylelemons/go-gypsy/yaml
 [INFO] Running go build github.com/Masterminds/cookoo/cli
 [INFO] Running go build github.com/Masterminds/cookoo
 ```

 This is useful when you are working with large 3rd party libraries. It
 will create the `.a` files, which can have a positive impact on your
 build times.

 ### glide help

 Print the glide help.

 ```
 $ glide help
 ```

 ### glide version

 Print the version and exit.

 ```
 $ glide version
 0.0.2-3-g4ac84b4
 ```

 ### glide.yaml

 The `glide.yaml` file does two critical things:

 1. It names the current package
 2. It declares external dependencies

 A brief `glide.yaml` file looks like this:

 ```yaml
 package: github.com/Masterminds/glide
 import:
   - package: github.com/kylelemons/go-gypsy
   - package: github.com/Masterminds/cookoo
     vcs: git
     ref: master
     repo: git@github.com:Masterminds/cookoo.git
 ```

 The above tells `glide` that...

 1. This package is named `github.com/Masterminds/glide`
 2. That this package depends on two libraries.


 The first library exemplifies a minimal package import. It merely gives
 the fully qualified import path.

 When Glide reads the definition for the second library, it will get the repo
 from the source in `repo`, checkout the master branch, and put it in
 `github.com/Masterminds/cookoo` in the `vendor` directory. (Note that `package`
 and `repo` can be completely different)

 **TIP:** The ref is VCS dependent and can be anything that can be checked out.
 For example, with Git this can be a branch, tag, or hash. This varies and depends
 on what's supported in the VCS.

 **TIP:** In general, you are advised to use the *base package name* for
 importing a package, not a subpackage name. For example, use
 `github.com/kylelemons/go-gypsy` and not
 `github.com/kylelemons/go-gypsy/yaml`.

 ### Controlling package and subpackage builds

 In addition to fetching packages, Glide builds the packages with `go
 install`. The YAML file can give special instructions about how to build
 a package. Example:

 ```yaml
 package: github.com/technosophos/glide
 import:
   - package: github.com/kylelemons/go-gypsy
     subpackage: yaml
   - package: github.com/Masterminds/cookoo
     subpackage:
       - .
       - cli
       - web
   - package: github.com/crowdmob/amz
     subpackage: ...
 ```

 According to the above, the following packages will be built:

 1. The `go-gypsy/yaml` package
 2. The `cookoo` package (`.`), along with `cookoo/web` and `cookoo/cli`
 3. Everything in `awz` (`...`)

 See the `docs/` folder for more examples.

 ## Supported Version Control Systems

 The Git, SVN, Mercurial (Hg), and Bzr source control systems are supported. This
 happens through the [vcs package](https://github.com/masterminds/vcs).

 ## Troubleshooting

 **Q: bzr (or hg) is not working the way I expected. Why?**

 These are works in progress, and may need some additional tuning. Please
 take a look at the [vcs package](https://github.com/masterminds/vcs). If you
 see a better way to handle it please let us know.

 **Q: Should I check `vendor/` into version control?**

 That's up to you. It's not necessary, but it may also cause you extra
 work and lots of extra space in your VCS.

 **Q: How do I import settings from GPM or Godep?**

 Glide can import from GPM's `Godeps` file format or from Godep's
 `Godeps/Godeps.json` file format.

 For GPM, use `glide import gpm`.

 For Godep, use `glide import godep`.

 Each of these will merge your existing `glide.yaml` file with the
 dependencies it finds for those managers, and then emit the file as
 output. **It will not overwrite your glide.yaml file.**

 You can write it to file like this:

 ```
 $ glide import godep > new-glide.yaml
 ```

 **Q: Can Glide fetch a package based on OS or Arch?**

 A: Yes. Using the `os` and `arch` fields on a `package`, you can specify
 which OSes and architectures the package should be fetched for. For
 example, the following package will only be fetched for 64-bit
 Darwin/OSX systems:

 ```yaml
 - package: some/package
   os:
     - darwin
   arch:
     - amd64
 ```

 The package will not be fetched for other architectures or OSes.

 ## LICENSE

 This package is made available under an MIT-style license. See
 LICENSE.txt.

 ## Thanks!

 We owe a huge debt of gratitude to the [GPM and
 GVP](https://github.com/pote/gpm) projects, which
 inspired many of the features of this package. If `glide` isn't the
 right Go project manager for you, check out those.

 The Composer (PHP), npm (JavaScript), and Bundler (Ruby) projects all
 inspired various aspects of this tool, as well.

 ## The Name

 Aside from being catchy, "glide" is a contraction of "Go Elide". The
 idea is to compress the tasks that normally take us lots of time into a
 just a few seconds.
	# Glide: The Lightweight Vendor Package Manager

	Manage your vendor and vendored packages with ease. Glide is a tool for
	managing the `vendor` directory within a Go package. This feature, first
	introduced in Go 1.5, allows each package to have a `vendor` directory
	containing dependent packages for the project. These vendor packages can be
	installed by a tool (e.g. glide), similar to `go get` or they can be vendored and
	distributed with the package.

	[![Build Status](https://travis-ci.org/Masterminds/glide.svg)](https://travis-ci.org/Masterminds/glide)

	### Features

	* Ease dependency management
	* Support versioning packages
	* Support aliasing packages (e.g. for working with github forks)
	* Remove the need for munging import statements
	* Work with all of the `go` tools
	* Support the VCS tools that Go supports:
	- git
	- bzr
	- hg
	- svn
	* Support custom local and global plugins (see docs/plugins.md)

	## How It Works

	The dependencies for a project are listed in a `glide.yaml` file. This can
	include a version, VCS, repository location (that can be different from the
	package name), etc. When `glide up` is run it downloads the packages (or updates)
	to the `vendor` directory. It then recursively walks through the downloaded
	packages looking for those with a `glide.yaml` file that don't already have
	a `vendor` directory and installing their dependencies to their `vendor`
	directories.

	A projects is structured like this:

	```
	- myProject (Your project)
	\|
	\|-- glide.yaml
	\|
	\|-- main.go (Your main go code can live here)
	\|
	\|-- mySubpackage (You can create your own subpackages, too)
	\| \|
	\| \|-- foo.go
	\|
	\|-- vendor
	\|-- github.com
	\|
	\|-- Masterminds
	\|
	\|-- ... etc.
	```

	*Take a look at [the Glide source code](http://github.com/Masterminds/glide)
	to see this philosophy in action.*

	## Install

	On Mac OS X you can install the latest release via [Homebrew](https://github.com/Homebrew/homebrew):

	```
	$ brew install glide
	```

	[Binary packages](https://github.com/Masterminds/glide/releases) are available for Mac and Linux.

	To build from source you can:

	1. Clone this repository and change directory into it
	2. Run `make bootstrap`

	This will leave you with `./glide`, which you can put in your `$PATH` if
	you'd like. (You can also take a look at `make install` to install for
	you.)

	The Glide repo has now been configured to use glide to
	manage itself, too.

	## Usage

	```
	$ glide create # Start a new workspaces
	$ open glide.yaml # and edit away!
	$ glide get github.com/Masterminds/cookoo # Get a package and add to glide.yaml
	$ glide install # Install packages and dependencies
	# work, work, work
	$ go build # Go tools work normally
	$ glide up # Update to newest versions of the package
	```

	Check out the `glide.yaml` in this directory, or examples in the `docs/`
	directory.

	### glide create [optional package name]

	Initialize a new workspace. Among other things, this creates a stub
	`glide.yaml`

	```
	$ glide create
	[INFO] Initialized. You can now edit 'glide.yaml'
	```

	If an optional package name is specified, Glide will add it to
	glide.yaml as the name of your project.

	### glide get [package name]

	You can download package to your `vendor` directory and have it added to your
	`glide.yaml` file with `glide get`.

	```
	$ glide get github.com/Masterminds/cookoo
	```

	### glide up (aliased to update and install)

	Download or update all of the libraries listed in the `glide.yaml` file and put
	them in the `vendor` directory. It will also recursively walk through the
	dependency packages doing the same thing if no `vendor` directory exists.

	```
	$ glide up
	```

	### glide rebuild

	Re-run `go install` on the packages in the `glide.yaml` file. This
	(along with `glide install` and `glide update`) pays special attention
	to the contents of the `subpackages:` directive in the YAML file.

	```
	$ glide rebuild
	[INFO] Building dependencies.
	[INFO] Running go build github.com/kylelemons/go-gypsy/yaml
	[INFO] Running go build github.com/Masterminds/cookoo/cli
	[INFO] Running go build github.com/Masterminds/cookoo
	```

	This is useful when you are working with large 3rd party libraries. It
	will create the `.a` files, which can have a positive impact on your
	build times.

	### glide help

	Print the glide help.

	```
	$ glide help
	```

	### glide version

	Print the version and exit.

	```
	$ glide version
	0.0.2-3-g4ac84b4
	```

	### glide.yaml

	The `glide.yaml` file does two critical things:

	1. It names the current package
	2. It declares external dependencies

	A brief `glide.yaml` file looks like this:

	```yaml
	package: github.com/Masterminds/glide
	import:
	- package: github.com/kylelemons/go-gypsy
	- package: github.com/Masterminds/cookoo
	vcs: git
	ref: master
	repo: git@github.com:Masterminds/cookoo.git
	```

	The above tells `glide` that...

	1. This package is named `github.com/Masterminds/glide`
	2. That this package depends on two libraries.


	The first library exemplifies a minimal package import. It merely gives
	the fully qualified import path.

	When Glide reads the definition for the second library, it will get the repo
	from the source in `repo`, checkout the master branch, and put it in
	`github.com/Masterminds/cookoo` in the `vendor` directory. (Note that `package`
	and `repo` can be completely different)

	TIP: The ref is VCS dependent and can be anything that can be checked out.
	For example, with Git this can be a branch, tag, or hash. This varies and depends
	on what's supported in the VCS.

	TIP: In general, you are advised to use the base package name for
	importing a package, not a subpackage name. For example, use
	`github.com/kylelemons/go-gypsy` and not
	`github.com/kylelemons/go-gypsy/yaml`.

	### Controlling package and subpackage builds

	In addition to fetching packages, Glide builds the packages with `go
	install`. The YAML file can give special instructions about how to build
	a package. Example:

	```yaml
	package: github.com/technosophos/glide
	import:
	- package: github.com/kylelemons/go-gypsy
	subpackage: yaml
	- package: github.com/Masterminds/cookoo
	subpackage:
	- .
	- cli
	- web
	- package: github.com/crowdmob/amz
	subpackage: ...
	```

	According to the above, the following packages will be built:

	1. The `go-gypsy/yaml` package
	2. The `cookoo` package (`.`), along with `cookoo/web` and `cookoo/cli`
	3. Everything in `awz` (`...`)

	See the `docs/` folder for more examples.

	## Supported Version Control Systems

	The Git, SVN, Mercurial (Hg), and Bzr source control systems are supported. This
	happens through the [vcs package](https://github.com/masterminds/vcs).

	## Troubleshooting

	Q: bzr (or hg) is not working the way I expected. Why?

	These are works in progress, and may need some additional tuning. Please
	take a look at the [vcs package](https://github.com/masterminds/vcs). If you
	see a better way to handle it please let us know.

	Q: Should I check `vendor/` into version control?

	That's up to you. It's not necessary, but it may also cause you extra
	work and lots of extra space in your VCS.

	Q: How do I import settings from GPM or Godep?

	Glide can import from GPM's `Godeps` file format or from Godep's
	`Godeps/Godeps.json` file format.

	For GPM, use `glide import gpm`.

	For Godep, use `glide import godep`.

	Each of these will merge your existing `glide.yaml` file with the
	dependencies it finds for those managers, and then emit the file as
	output. It will not overwrite your glide.yaml file.

	You can write it to file like this:

	```
	$ glide import godep > new-glide.yaml
	```

	Q: Can Glide fetch a package based on OS or Arch?

	A: Yes. Using the `os` and `arch` fields on a `package`, you can specify
	which OSes and architectures the package should be fetched for. For
	example, the following package will only be fetched for 64-bit
	Darwin/OSX systems:

	```yaml
	- package: some/package
	os:
	- darwin
	arch:
	- amd64
	```

	The package will not be fetched for other architectures or OSes.

	## LICENSE

	This package is made available under an MIT-style license. See
	LICENSE.txt.

	## Thanks!

	We owe a huge debt of gratitude to the [GPM and
	GVP](https://github.com/pote/gpm) projects, which
	inspired many of the features of this package. If `glide` isn't the
	right Go project manager for you, check out those.

	The Composer (PHP), npm (JavaScript), and Bundler (Ruby) projects all
	inspired various aspects of this tool, as well.

	## The Name

	Aside from being catchy, "glide" is a contraction of "Go Elide". The
	idea is to compress the tasks that normally take us lots of time into a
	just a few seconds.