strawberryjello

Continuous integration (CI)

CI step-by-step for a single feature

• checkout latest version of source code from mainline/master
  • verify first that the build is passing – if it’s failing, fix it first
• develop feature
• build source locally (in developer’s working copy)
  • compilation/producing a running version of the app
  • run tests
  • this step should be automated
• when build passes, integrate changes into mainline (eg, push to master)

strawberryjello

#! /bin/sh

rm /usr/local/var/postgres/postmaster.pid
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

strawberryjello

# Last updated: 3 August 2015
#
# Applicable for Rubocop 0.32.1
#
# This document contains a custom Rubocop ruleset adhering to the Clinic-IT Ruby Style Guide (https://github.com/clinic-it/zen/blob/master/guidelines/ruby.md).
#
# All rules from the above are listed, with notes about whether they:
# - are enabled by default
# - require configuration
# - have not been implemented

strawberryjello

# Available cops (226): 
# Type 'Lint' (41):
Lint/AmbiguousOperator:
  Description: Checks for ambiguous operators in the first argument of a method invocation
    without parentheses.
  StyleGuide: https://github.com/bbatsov/ruby-style-guide#parens-as-args
  Enabled: true

Lint/AmbiguousRegexpLiteral:
  Description: Checks for ambiguous regexp literals in the first argument of a method

strawberryjello

# GENERAL

# Indent using soft indents (2 whitespace) instead of real tab.
# Enabled by default
# Style/IndentationWidth

# Limit lines to 80 characters except for HAML files.
# Enabled by default
# Metrics/LineLength

strawberryjello

# Available cops (218)
# Type 'Lint' (38):
Lint/AmbiguousOperator:
  Description: Checks for ambiguous operators in the first argument of a method invocation
    without parentheses.
  StyleGuide: https://github.com/bbatsov/ruby-style-guide#parens-as-args
  Enabled: true

Lint/AmbiguousRegexpLiteral:
  Description: Checks for ambiguous regexp literals in the first argument of a method

strawberryjello

Metrics/MethodLength:
  Enabled: false

Style/AlignParameters:
  EnforcedStyle: with_fixed_indentation

Style/Documentation:
  Enabled: false

Style/DotPosition:

strawberryjello

Notes on Vim and Emacs

Why Vim?

• Vim is the descendant of vi, designed to be (mostly) backwards-compatible
  • learning vi is useful when you need to edit a file over ssh, since vi is usually installed in any UNIX/UNIX-based system by default
• Vim’s shortcuts and design, once you learn them, help you search/create/edit/etc files quicker
  • these shortcuts are also used in UNIX-based terminals, such as the man page viewer
• Vim offers flexible window management (splitting, etc) and works well with tmux, a popular terminal multiplexer
• Vim’s plugin ecosystem is thriving and full of useful tools for development in most (if not all) languages
• you can extend Vim yourself using Vimscript

Why Emacs?

strawberryjello

#!/usr/bin/env bash

# meant to be run in the repo top directory
IN=`git status --porcelain | cut -c4-`
arr=$(echo $IN)

for x in $arr
do
    echo $x
done

strawberryjello

Notes on the Development Life Cycle

Prioritizing

• avoid changing the list of items to work on mid-sprint
  • be firm with clients – prevent them from sneaking in new items/making changes to their requested features mid-sprint
  • item priorities may change mid-sprint, but keep in mind that changes like these are disruptive
• points or man-days: YMMV
  • whichever you choose, be consistent (this is a team decision)
  • make sure everyone agrees on what each unit of effort stands for
  • estimates are not absolute