Jason Hinch, Full-stack Developer, Atlassian

Stash State of the Union

ECOSYSTEM HEALTH

Agenda

QUESTIONS

NEXT 12 MONTHS

PLUGIN POINTS

Agenda

QUESTIONS

NEXT 12 MONTHS

PLUGIN POINTS

ECOSYSTEM HEALTH

• Team

• 20+ developers

• Customer base

• 2100+ customers

• Releases

• 3 major, 15 minor, 59 bug fix

Stash is growing

• Empower our ecosystem

• Stable API for major versions

• Java API

• REST API

• Developer docs

Committed to plugins

As of May 2014

86Stash Add-Ons on Marketplace

• 9000+ downloads

• Commercial add-on

• Charts for repository stats

• Commit & line activity

• Contributors

Awesome Graphs

• 3000+ downloads

• Commercial add-on

• Powered by SubGit

• SVN migration

• Incremental

• Once time import

Svn Mirror for Stash

• 10-15 free add-ons

• Experiment with features

• Keep Stash lean

• Validate our plugin points

Add-ons by Atlassian

ECOSYSTEM HEALTH

PLUGIN POINTS

Agenda

QUESTIONS

NEXT 12 MONTHS

• Servlets

• Web Fragments

• Web panels

• Web items

• Web section

• Page decorators

• LESS css

• Soy templates

• Atlassian UI (AUI)

Built on the Atlassian Platform

Repository Hooks

• Pre-receive

• Post-receive

• Pull request merge

• Per repositoryconfiguration

• Since Stash 2.1

Repository Hooks

atlassian-plugin.xml

Implementation

Soy template

Soy files

NamingConventionHook.java

NamingConventionHook.java

NamingConventionHook.java

static/config.soy

Existing values

Validation errors

Cancelable Events

• Implement CancelableEvent

• Correspond to modification request

• Prevent action from being performed

• Veto message sent back to UI

Cancelable Events

• Pull requests

• Permissions

• Repositories

• Projects

What can be canceled

MyListener.java

File Handlers

• Pluggable source rendering pipeline

• Take control any source and diff

• Selectively handle rendering

• Asynchronous by design (promise based)

File Handler

atlassian-plugin.xml

Included whenrendering source

JS files

File handler registry

stl-handler.js

PLUGIN POINTS

NEXT 12 MONTHS

ECOSYSTEM HEALTH

Agenda

QUESTIONS

Stash Data Center

• Problem areas

• Caching / State

• Locking / State control

• Background tasks

• Shared technologies with JIRA/Confluence

• Atlassian Cache

• Atlassian Scheduler

• Atlassian Beehive

• How-to guides coming soon

Cluster-safety

• Test Data

• Number of repositories

• Size of repositories

• Measure

• Execution time

• Memory consumption

• Concurrency

• Techniques

• Paging

• Limiting

• Streaming

• Documentation coming

Scaling for the enterprise

Front-end API

• JavaScript AMD modules

• Stable for major version

• Valid inputs will return same outputs

• Function names will remain the same

• Deprecation warnings

• Documented

JavaScript API

• Standard LESS import

• Stable for major version

• Variable names (not value)

• Mix-in names (not output)

• Deprecation documented

• Release TBA

LESS API

• Great opportunities

• Try writing a plugin for Stash

• Scale with Stash

• Give us feedback

Take aways

NEXT 12 MONTHS

QUESTIONS

PLUGIN POINTS

ECOSYSTEM HEALTH

Question time