2 title: Downloading AGL Software
5 Once you have determined the build host can build an AGL image,
6 you need to download the AGL source files.
7 The AGL source files, which includes the Yocto Project layers, are
8 maintained on the AGL Gerrit server.
9 For information on how to create accounts for Gerrit, see the
10 [Getting Started with AGL](https://wiki.automotivelinux.org/start/getting-started)
13 The remainder of this section provides steps on how to download the AGL source files:
15 1. **Define Your Top-Level Directory:**
16 You can define an environment variable as your top-level AGL workspace folder.
17 Following is an example that defines the `$HOME/workspace_agl` folder using
18 an environment variable named "AGL_TOP":
21 $ export AGL_TOP=$HOME/AGL
22 $ echo 'export AGL_TOP=$HOME/AGL' >> $HOME/.bashrc
26 2. **Download the `repo` Tool and Set Permissions:**
27 AGL Uses the `repo` tool for managing repositories.
28 Use the following commands to download the tool and then set its
29 permissions to allow for execution:
33 $ export PATH=$HOME/bin:$PATH
34 $ echo 'export PATH=$HOME/bin:$PATH' >> $HOME/.bashrc
35 $ curl https://storage.googleapis.com/git-repo-downloads/repo > $HOME/bin/repo
36 $ chmod a+x $HOME/bin/repo
40 "[Repo Command Reference](https://source.android.com/setup/develop/repo)"
41 for more information on the `repo` tool.
43 3. **Download the AGL Source Files:**
44 Depending on your development goals, you can either download the
45 latest stable AGL release branch, or the "cutting-edge" (i.e. "master"
49 Using the latest stable release gives you a solid snapshot of the
51 The release is static, tested, and known to work.
52 To download the latest stable release branch (i.e. Jellyfish), use
53 the following commands:
59 $ repo init -b jellyfish -u https://gerrit.automotivelinux.org/gerrit/AGL/AGL-repo
63 * **Cutting-Edge Files:**
64 Using the "cutting-edge" AGL files gives you a snapshot of the
66 The resulting local repository you download is dynamic and changes frequently depending on community contributions.
67 The advantage of using "cutting-edge" AGL files is that you have the
68 absolute latest features, which are often under development, for AGL.
70 To download the "cutting-edge" AGL files, use the following commands:
76 $ repo init -u https://gerrit.automotivelinux.org/gerrit/AGL/AGL-repo
80 Once you `sync` the repository, you have the AGL files in the form of
81 "layers" (e.g. `meta-*` folders).
82 You also have the `poky` repository in your AGL workspace.
84 Listing out the resulting directory structure appears as follows:
92 ├── meta-agl-cluster-demo
96 └── meta-agl-telematics-demo