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https://github.com/Nike-Inc/bartlett

A simple Jenkins command line client to serve your needs.
https://github.com/Nike-Inc/bartlett

bartlett command-line command-line-app haskell jenkins jenkins-command nike profile stack workflow

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A simple Jenkins command line client to serve your needs.

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README 

        
# bartlett [![Build Status](https://travis-ci.org/Nike-Inc/bartlett.svg?branch=master)](https://travis-ci.org/Nike-Inc/bartlett)



A simple Jenkins command line client to serve your needs.



## Table of Contents



  - [Motivation](#motivation)

    - [Why not just use the Jenkins CLI jar?](#why-not-just-use-the-jenkins-cli-jar)

    - [And why not just use curl?](#and-why-not-just-use-curl)

  - [Supported Platforms](#supported-platforms)

  - [Installation](#installation)

    - [from Homebrew](#from-homebrew)

      - [Updating Bartlett with Homebrew](#updating-bartlett-with-homebrew)

    - [from Source](#from-source)

  - [Getting Help](#getting-help)

  - [Usage](#usage)

    - [Getting Help at the Command Line](#getting-help-at-the-command-line)

    - [Querying Existing Jobs](#querying-existing-jobs)

    - [Triggering Job Builds](#triggering-job-builds)

    - [Managing Job Configurations](#managing-job-configurations)

      - [Updating Existing Jobs](#updating-existing-jobs)

      - [Deleting Existing Jobs](#deleting-existing-jobs)

    - [Downloading Artifacts for a Given Job](#downloading-artifacts-for-a-given-job)

    - [Getting Log Output for a Given Job](#getting-log-output-for-a-given-job)

      - [Streaming Log Output for Recently Built Jobs](#streaming-log-output-for-recently-built-jobs)

    - [Configuring Profiles](#configuring-profiles)

      - [Supported Configuration Values](#supported-configuration-values)

        - [A note on password storage](#a-note-on-password-storage)

  - [Development](#development)

  - [What's in a name?](#whats-in-a-name)



#### Motivation



We live on the command line, and anything that can help us stay there longer is

a boon to productivity. While the Jenkins web interface is nice for many, it is

a distracting context switch for us.



Our goal for this tool is to replicate many of the workflows that we use

day-to-day through the web interface in a single, easy to use command line

client. Additionally, many of the existing clients are either not under active

development or do not satisfy the below requirements for a CLI Jenkins client.



##### Why not just use the Jenkins CLI jar?



A few reasons:



  - `bartlett`'s focus is on translating workflows from the web ui to the

  command line.

      - It is _not_ meant to be a replacement for the Jenkins CLI jar, where the

      primary focus is on remotely administrating a Jenkins instance

  - `bartlett`'s output is primarly JSON, which means that it can be piped

  into tools like [jq][jq-page] and scripted programmatically

  - Profile support to alleviate the tedium of working with multiple Jenkins

  instances

      - Similar in spirit to AWS CLI profiles

  - Some Jenkins instances are not configured to allow JNLP access

      - `bartlett` instead talks to Jenkins over its REST API

  - We want a tool that can be installed as a static binary



##### And why not just use curl?



You could, but you'll end up typing a lot more in the long run. `bartlett`'s

support for profiles and CSRF crumb generation means that authentication and

Jenkins instance resolution are done for you at invocation. You also don't

have to worry about exposing your password since `bartlett` doesn't accept it

as a configuration or command line option (only requested at runtime with

hidden input).



## Supported Platforms



`bartlett` is currently built and tested for the following platforms:



|Platform|Version|

|--------|-------|

|Mac OSX | El Capitan and above |



If you would like to assist in building and testing versions for more platforms

please check

[the issue tracker for your platform of choice](https://github.com/Nike-Inc/bartlett/issues?q=is%3Aissue+is%3Aopen+label%3A%22Platform+Support%22).



## Installation



### from Homebrew



Homebrew is an OSX specific application that allows users to install

applications that didn't come with Apple's operating system.



For help installing Homebrew [see the installation instructions here.](http://brew.sh/)



If you haven't already, be sure to enable Nike's tap:



```

brew tap nike-inc/nike && brew update

```



Then install bartlett with the following command:



```

brew install bartlett

```



#### Updating Bartlett with Homebrew



Recent versions of Homebrew periodically refresh package indexes, but if you do

not see the latest version of Bartlett then running the following command

will force a refresh:



```

brew update

```



Then, upgrade to the latest version



```

brew upgrade bartlett

```



### from Source



Make sure you have [Stack][stack-install] installed before you begin.



Change directory to where you store your development projects:



```

git clone https://github.com/Nike-Inc/bartlett.git

cd bartlett && stack build && stack install

```



## Getting Help



At this time the best way to contact us is

[by filing an issue](https://github.com/Nike-Inc/bartlett/issues/new). We hope

to expand our level of support to other mediums in the near future.



## Usage



##### A note about protocols



Bartlett will honor any protocol explicitly passed on the command line or via

configuration. However, if no protocol is provided then Bartlett will attempt

to contact your Jenkins instance via HTTPS. It is _strongly_ recommended that

you talk to your Jenkins instance via HTTPS when possible.



### Getting Help at the Command Line



You can get a list of available options with the `-h` flag:



```

$ bartlett -h

bartlett 1.6.0 - the Jenkins command-line tool to serve your needs.



Usage: bartlett [--version] [-u|--username USERNAME]

                [-j|--jenkins JENKINS_INSTANCE] [-p|--profile PROFILE_NAME]

                [--refresh-credentials] COMMAND



Available options:

  -h,--help                Show this help text

  --version                Print the current version and exit.

  -u,--username USERNAME   The user to authenticate with

  -j,--jenkins JENKINS_INSTANCE

                           The Jenkins instance to interact with

  -p,--profile PROFILE_NAME

                           The profile to source values from

  --refresh-credentials    Force a refresh of the credentials cache for the

                           current profile.



Available commands:

  info                     Get information on the given job

  build                    Trigger a build for the given job

  config                   Manage XML configurations for jobs

  artifact                 Download artifacts from jobs

  log                      Print (or follow) log output for jobs



Copyright (c) Nike, Inc. 2016-present

```



### Querying Existing Jobs



You can query for basic information about a given job by providing the path

from the root of your Jenkins instance to the desired job.



For example, if my job exists at

`https://my.jenkins-instance.com/job/TEST/job/testJob/`, then I can query

this job's information like so:



```

bartlett --username my_user --jenkins https://my.jenkins-instance.com info TEST/testJob

```



You can also pass this output directly to the [jq][jq-page] tool to query data

even further:



```

$ bartlett --username my_user \

    --jenkins https://my.jenkins-instance.com info TEST/testJob \

    | jq '.jobs | .[] | .name'

"00_my-first-job"

"01_my-second-job"

"02_my-third-job"

```



You can even pass in multiple jobs at once by separating each job path with

a space:



```

$ bartlett -u my_user -j https://my.jenkins-instance.com \

  info FOO BAR | jq '.jobs | .[] | .name'

Enter password:

"foojob-one"

"foojob-two"

"barjob-one"

"barjob-two"

```



You may find after a while that entering your password for each invocation

becomes tedious. For your convenience, Bartlett can cache user passwords on a

per profile basis. See the "Configuring Profiles" section for more information.



### Triggering Job Builds



You can build parameterized and normal jobs by using the `build` sub-command.



For example, if my job exists at

`https://my.jenkins-instance.com/job/~my_user/job/test`, then I can trigger its

build like so:



```

$ bartlett --username my_user \

    --jenkins https://my.jenkins-instance.com build /~my_user/test

Enter password:

{

    "status": "201"

}

```



Or, if I have a job with parameters, I can pass these parameters in using the

`-p` flag.



```

$ bartlett --username my_user --jenkins https://my.jenkins-instance.com \

    build /~my_user/test --options FOO=bar,BAZ=quux

Enter password:

{

    "status": "201"

}

```



### Managing Job Configurations



You can manage the XML job configurations for any job on your Jenkins instance

by using the `config` sub-command.



To get the current configuration for your job run the `config` sub-command

against the path to your job:



```xml

bartlett --username my_user --jenkins https://my.jenkins.com \

  config /path/to/my/job

Enter password:



  

  false

  

  

  true

  false

  false

  false

  

  false

  

    

      echo "lolwut there"

    

  

  

  



```



#### Updating Existing Jobs



We can pipe the output of the previous command to a file, make some

modifications, and then update the configuration with the following command:



```

bartlett --username my_user --jenkins https://my.jenkins.com \

  config /path/to/my/job -f ./config.xml

Enter password:

{

    "statusMessage": "OK",

    "statusCode": 200

}

```



#### Deleting Existing Jobs



You can delete an existing job by passing the `-d` flag to a `config` command:



```

bartlett --username user --jenkins https://my-jenkins.com \

  config -d /path/to/job/to/delete

Enter password:

{

    "statusMessage": "OK",

    "statusCode": 200

}

```



### Downloading Artifacts for a Given Job



Artifacts can be downloaded for a given job by using the `artifact` sub-command.

At this time only one artifcat may be downloaded at a time.



```

bartlett --username my-user --jenkins https://my-jenkins.com \

  artifact /path/to/job my-artifact-id

Enter password:

echo "foo" > foo.txt

```



Artifacts are currently sent to STDOUT, which works for simple files, but my not be

desirable for larger files or binaries. It is recommended at this time to pipe

artifact output directly to a file:



```

bartlett --username my-user --jenkins https://my-jenkins.com \

  artifact /path/to/job my-artifact-id > my-artifact-id.txt

Enter password:

```



### Getting Log Output for a Given Job



Log output can be printed for a given job with the `log` sub-command.



```

bartlett --username my-user --jenkins https://my-jenkins.com \

  log /path/to/job 42 # The job invocation to get logs for

```



Logs are printed to STDOUT and can be manipulated with standard UNIX tools. For

example, let's say we only care that a job completed successfully. We can

achieve this simple goal by piping log output to grep:



```

bartlett --username my-user --jenkins https://my-jenkins.com \

  log /path/to/job 42 | grep SUCCESS

Finished: SUCCESS

```



#### Streaming Log Output for Recently Built Jobs



You may also stream log output for a long-running job by passing the `-f` or

`--follow` flags to the `log` sub-command:



```

bartlett --username my-user --jenkins https://my-jenkins.com \

  log /path/to/job --follow 42

Job output...

Job output...

Job output...

Job output...

```



### Configuring Profiles



You may store configuration values for many different Jenkins instances. First

create a bartlett configuration file:



```bash

touch ~/.bartlett.cfg && $EDITOR ~/.bartlett.cfg

```



By default, values will attempt to be sourced from the `default` configuration

block.



```

# The default profile

default {

  jenkins_instance = "https://my.jenkins-instance.com"

  username = "my_user"

}



# Additional profile

dank_profile {

  jenkins_instance = "https://dank.jenkins-instance.com"

  username = "wewlad"

}

```



You can then invoke Bartlett without providing user or Jenkins options:



```bash

bartlett info /  # Uses the default profile from above

bartlett --profile dank_profile info /  # Source a different profile

```



If a value is provided on the command line _AND_ configured in a profile, then

the value provided on the command line will take precedence.



#### Supported Configuration Values



The following values are supported by the latest version of Bartlett:



| Value | Default | Description|

|-------|---------|------------|

| `username` | None | The username to authenticate against Jenkins with. |

| `jenkins_instance` | None | The Jenkins instance to interact with. |

| `store_password` | false | If true, securely store the user's password on next invocation. |



##### A note on password storage



Bartlett will attempt to store user credentials using OSX's Keychain service.

By default, passwords **are not** stored and must explictly enable storage

using the above configuration options _for each profile_.



If for any reason your password becomes incorrect or you'd like to change the

cached user for a given profile, then you may refresh the stored information for

a profile by passing the `--refresh-credentials` flag:



```

bartlett --refresh-credentials --profile my_profile info /

```



## Development



Make sure you have [Stack][stack-install] installed before you begin.



Then build the project:



```bash

stack build

```



Or alternatively start a REPL to test things out interactively:



```bash

stack ghci

```



#### Running Tests on File Change



When actively working on a feature we'll typically run the following to get

automatic feedback as we write code:



```bash

stack build --test --coverage --haddock --copy-bins --file-watch

```



Or run the make target:



```

make watch

```



To exit out of this loop type `quit` (instead of C-c).



#### Building a Static Binary



Surprise, more Stack options!



```bash

stack build --force-dirty --haddock --copy-bins

```



Or use the make target:



```bash

make package-bin

```



### What's in a name?



[Leslie Bartlett][bartlett-wiki] was a famous butler who founded the London

School of British Butlers.



[bartlett-wiki]: https://en.wikipedia.org/wiki/Leslie_Bartlett

[stack-install]: https://docs.haskellstack.org/en/stable/README/

[jq-page]: https://stedolan.github.io/jq/

[homebrew-install]: http://brew.sh/