78df6193b8
Correct wording and instructions to be sure they match what would be observed with the indicated version of gerrit. Expand instructions when needed to ensure all commands could be executed and were successful. Indent commands and output based on a run of the instructions Change-Id: Ia152069db99890ccc8e06a150100f726996985bd
334 lines
10 KiB
Plaintext
334 lines
10 KiB
Plaintext
Gerrit Code Review - Quick get started guide
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============================================
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****
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This guide was made with the impatient in mind, ready to try out Gerrit on their
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own server but not prepared to make the full installation procedure yet.
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Explanation is sparse and you should not use a server installed this way in a
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live setup, this is made with proof of concept activities in mind.
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It is presumed you install it on a Unix based server such as any of the Linux
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flavors or BSD.
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It's also presumed that you have access to an OpenID enabled email address.
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Examples of OpenID enable email providers are gmail, yahoo and hotmail.
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It's also possible to register a custom email address with OpenID, but that is
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outside the scope of this quick installation guide. For testing purposes one of
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the above providers should be fine. Please note that network access to the
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OpenID provider you choose is necessary for both you and your Gerrit instance.
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****
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[[requirements]]
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Requirements
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------------
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Most distributions come with Java today. Do you already have Java installed?
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----
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$ java -version
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java version "1.6.0_26"
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Java(TM) SE Runtime Environment (build 1.6.0_26-b03-384-10M3425)
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Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02-384, mixed mode)
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----
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If Java isn't installed, get it:
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* JDK, minimum version 1.6 http://www.oracle.com/technetwork/java/javase/downloads/index.html[Download]
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[[user]]
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Create a user to host the Gerrit service
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----------------------------------------
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We will run the service as a non privileged user on your system.
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First create the user and then become the user:
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----
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$ sudo adduser gerrit2
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$ sudo su gerrit2
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----
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If you don't have root privileges you could skip this step and run gerrit
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as your own user as well.
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[[download]]
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Download Gerrit
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---------------
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It's time to download the archive that contains the gerrit web and ssh service.
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You can choose from different versions to download from here:
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* http://code.google.com/p/gerrit/downloads/list[A list of releases available]
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This tutorial is based on version 2.2.2, and you can download that from this link
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* http://code.google.com/p/gerrit/downloads/detail?name=gerrit-2.2.2.war[Link to the 2.2.2 war archive]
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[[initialization]]
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Initialize the Site
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-------------------
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It's time to run the initialization, and with the batch switch enabled, we don't have to answer any questions at all:
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----
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gerrit2@host:~$ java -jar gerrit.war init --batch -d ~/gerrit_testsite
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Generating SSH host key ... rsa(simple)... done
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Initialized /home/gerrit2/gerrit_testsite
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Executing /home/gerrit2/gerrit_testsite/bin/gerrit.sh start
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Starting Gerrit Code Review: OK
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gerrit2@host:~$
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----
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When the init is complete, you can review your settings in the
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file `'$site_path/etc/gerrit.config'`.
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An important setting will be the canonicalWebUrl which will
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be needed later to access gerrit's web interface.
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----
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gerrit2@host:~$ cat ~/gerrit_testsite/etc/gerrit.config | grep canonical
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canonicalWebUrl = http://localhost:8080/
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gerrit2@host:~$
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----
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[[usersetup]]
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The first user
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--------------
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It's time to exit the gerrit2 account as you now have Gerrit running on your
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host and setup your first workspace.
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Start a shell with the credentials of the account you will perform
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development under.
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Check whether there are any ssh keys already. You're looking for two files,
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id_rsa and id_rsa.pub.
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----
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user@host:~$ ls .ssh
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authorized_keys config id_rsa id_rsa.pub known_hosts
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user@host:~$
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----
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If you have the files, you may skip the key generating step.
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If you don't see the files in your listing, your will have to generate rsa
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keys for your ssh sessions:
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SSH key generation
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~~~~~~~~~~~~~~~~~~
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*Please don't generate new keys if you already have a valid keypair!*
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*They will be overwritten!*
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----
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user@host:~$ ssh-keygen -t rsa
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Generating public/private rsa key pair.
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Enter file in which to save the key (/home/user/.ssh/id_rsa):
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Created directory '/home/user/.ssh'.
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Enter passphrase (empty for no passphrase):
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Enter same passphrase again:
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Your identification has been saved in /home/user/.ssh/id_rsa.
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Your public key has been saved in /home/user/.ssh/id_rsa.pub.
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The key fingerprint is:
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00:11:22:00:11:22:00:11:44:00:11:22:00:11:22:99 user@host
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The key's randomart image is:
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+--[ RSA 2048]----+
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| ..+.*=+oo.*E|
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| u.OoB.. . +|
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| ..*. |
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| o |
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| . S .. |
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| .. |
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+-----------------+
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user@host:~$
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----
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Registering your key in Gerrit
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Open a browser and enter the canonical url you got before when
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initializing Gerrit.
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----
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Canonical URL [http://localhost:8080/]:
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----
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Register a new account in Gerrit through the web interface with the
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email address of your choice.
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The first user to sign-in and register an account will be
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automatically placed into the fully privileged Administrators group,
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permitting server management over the web and over SSH. Subsequent
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users will be automatically registered as unprivileged users.
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Once signed in as your user, you find a little wizard to get you started.
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The wizard helps you fill out:
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* Real name (visible name in Gerrit)
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* Register your email (it must be confirmed later)
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* Select a username with which to communicate with Gerrit over ssh+git
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* The server will ask you for an RSA public key.
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That's the key we generated above, and it's time to make sure that Gerrit knows
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about our new key and can identify us by it.
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----
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user@host:~$ cat .ssh/id_rsa.pub
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ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA5E785mWtMckorP5v40PyFeui9T50dKpaGYw67Mlv2J3aGBG3tS0qBQxKEpiV0J4+W0RgQHbWfNqdUYen9bC5VVH/GatYWkpL9TjjUcHzF1rX3Eyv7PHuHLAyd/8Zdv6R3saF+hNpp1JW0BSa7HXzK7iNCVA3kBuBthxeGh3OoFbaXHn1zwwVQw8I5+Lp9OOIY7sJEsM/kW699XDV6z2zlkByNVEp45j+g26x5rCnGS8GJM7A0uHsaWJddO6TiyR6/2SOBF1VtKw49XLTQcmDInFAZzUsAZSDKlfYloPkpA6YdqeG0eJqau+jtzuigydoVj4j9xidcJ9HtxZcJNuraw== user@host
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user@host:~$
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----
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Copy the string starting with ssh-rsa to your clipboard and then paste it
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into the box for RSA keys. Make *absolutely sure* no extra spaces or line feeds
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are entered in the middle of the RSA string.
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Verify that the ssh connection works for you.
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----
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user@host:~$ ssh user@localhost -p 29418
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The authenticity of host '[localhost]:29418 ([127.0.0.1]:29418)' can't be established.
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RSA key fingerprint is db:07:3d:c2:94:25:b5:8d:ac:bc:b5:9e:2f:95:5f:4a.
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Are you sure you want to continue connecting (yes/no)? yes
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Warning: Permanently added '[localhost]:29418' (RSA) to the list of known hosts.
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**** Welcome to Gerrit Code Review ****
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Hi user, you have successfully connected over SSH.
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Unfortunately, interactive shells are disabled.
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To clone a hosted Git repository, use:
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git clone ssh://user@localhost:29418/REPOSITORY_NAME.git
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user@host:~$
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----
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Project creation
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----------------
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Your base Gerrit server is now running and you have a user that's ready
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to interact with it. You now have two options, either you create a new
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test project to work with or you already have a git with history that
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you would like to import into gerrit and try out code review on.
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New project from scratch
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~~~~~~~~~~~~~~~~~~~~~~~~
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If you choose to create a new repository from scratch, it's easier for
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you to create a project with an initial commit in it. That way first
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time setup between client and server is easier.
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This is done via the SSH port:
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----
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user@host:~$ ssh -p 29418 user@localhost gerrit create-project --empty-commit --name demo-project
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user@host:~$
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----
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This will create a repository that you could clone to work with.
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Already existing project
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~~~~~~~~~~~~~~~~~~~~~~~~
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The other alternative is if you already have a git project that you
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want to try out Gerrit on.
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First you have to create the project, this is done via the SSH port:
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----
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user@host:~$ ssh -p 29418 user@localhost gerrit create-project --name demo-project
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user@host:~$
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----
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You need to make sure that at least initially your account is granted
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"Create Reference" privileges for the refs/heads/* reference.
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This is done via the web interface in the Admin/Projects/Access page
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that correspond to your project.
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After that it's time to upload the previous history to the server:
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----
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user@host:~/my-project$ git push ssh://user@localhost:29418/demo-project *:*
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Counting objects: 2011, done.
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Writing objects: 100% (2011/2011), 456293 bytes, done.
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Total 2011 (delta 0), reused 0 (delta 0)
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To ssh://user@localhost:29418/demo-project
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* [new branch] master -> master
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user@host:~/my-project$
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----
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This will create a repository that you could clone to work with.
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My first change
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---------------
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Download a local clone of the repository and move into it
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----
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user@host:~$ git clone ssh://user@host:29418/demo-project
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Cloning into demo-project...
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remote: Counting objects: 2, done
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remote: Finding sources: 100% (2/2)
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remote: Total 2 (delta 0), reused 0 (delta 0)
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user@host:~$ cd demo-project
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user@host:~/demo-project$
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----
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Then make a change to it and upload it as a reviewable change in Gerrit.
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----
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user@host:~/demo-project$ date > testfile.txt
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user@host:~/demo-project$ git add testfile.txt
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user@host:~/demo-project$ git commit -m "My pretty test commit"
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[master ff643a5] My pretty test commit
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1 files changed, 1 insertions(+), 0 deletions(-)
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create mode 100644 testfile.txt
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user@host:~/demo-project$
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----
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Usually when you push to a remote git, you push to the reference
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`'/refs/heads/branch'`, but when working with Gerrit you have to push to a
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virtual branch representing "code review before submittal to branch".
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This virtual name space is known as /refs/for/<branch>
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----
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user@host:~/demo-project$ git push origin HEAD:refs/for/master
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Counting objects: 4, done.
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Writing objects: 100% (3/3), 293 bytes, done.
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Total 3 (delta 0), reused 0 (delta 0)
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remote:
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remote: New Changes:
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remote: http://localhost:8080/1
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remote:
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To ssh://user@localhost:29418/demo-project
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* [new branch] HEAD -> refs/for/master
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user@host:~/demo-project$
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----
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You should now be able to access your change by browsing to the http URL
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suggested above, http://localhost:8080/1
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Quick Installation Complete
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---------------------------
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This covers the scope of getting Gerrit started and your first change uploaded.
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It doesn't give any clue as to how the review workflow works, please find
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link:http://source.android.com/submit-patches/workflow[Default Workflow] to
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learn more about the workflow of Gerrit.
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To read more on the installation of Gerrit please read link:install.html[the detailed
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installation page].
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GERRIT
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------
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Part of link:index.html[Gerrit Code Review]
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