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Category: bestpractice
Dev tip: Learn VIM
So happy that I know how to use VIM. Why? Because sometimes I need to edit files on the remote host.
Maybe your IDE can’t successfully connect to the remote host and you end up with SSH and CLI commands.
My current scenario is implementing a payment gateway and using localhost as host is ignored 😦 I ended up coding on the shared hosting via SSH, but without slowdown thanks to VIM skills.
Splitting zsh config due multi host usage
This week while copying some of my dotfiles (due vim and zsh configuration) to a new remote host (dedicated server) of a new client I had to remove the private stuff (mainly aliases) from my .zshrc. Only now did the muse hit me to split the file and leverage the source (import, require, include) functionality.
So I moved the host specific and private stuff from .zshrc and added the following 2 lines after source $ZSH/oh-my-zsh.sh:
[[ -f .zshrc_priv ]] && source .zshrc_priv [[ -f .zshrc_host ]] && source .zshrc_host
After editing .zshrc and moving some lines into .zshrc_priv and .zshrc_host I also commented the files header to be reminded about their purpose in the future 😀
# .zshrc_priv # Sourced by .zshrc # Private settings due public version control alias vps='TERM=xterm-256color autossh -M 0 mike@vps' # host vps set in .ssh/config alias vps_tunnel='autossh -f -M 0 -T -N -R 10022:localhost:22 mike@vps'
# .zshrc_host # Sourced by .zshrc # Host specific settings export PATH="/usr/local/opt/node@6/bin:$PATH
Next I gonna separate some vim plugin specific code, too, to have a copyable (Plug & Play) config.
Livereload WordPress PHP code during development
I got tired of reloading 2 browser windows (one incognito) during development. I saw one fellow developer using Livereload in his code so I gave it a try.
Boy was that a good/effective idea.
- Create
package.jsonfile withnpm init
in your project dir. - Add line
"livereload": "^0.6.2"todevDependenciesand"dev": "livereload -d wp-content",toscripts{ "name": "example.com", "version": "1.0.0", "description": "", "dependencies": { }, "devDependencies": { "livereload": "^0.6.2" }, "scripts": { "dev": "livereload -d wp-content", "test": "echo \"Error: no test specified\" && exit 1" }, "repository": { "type": "git", "url": "git+ssh://git@bitbucket.org/exampleUser/example.git" }, "author": "Michal Zuber", "license": "MIT" } - Install livereload package
npm install - Next add LiveReload Chrome extension
- Run
npm run devoryarn dev - Open project URL in browser and click LiveReload extension icon to connect with livereload. Example console output when handshake was successful
yarn dev v0.28.4 $ livereload -d wp-content LiveReload is waiting for browser to connect. Protocol version: 7 Exclusions: /\.git\//,/\.svn\//,/\.hg\// Extensions: html,css,js,png,gif,jpg,php,php5,py,rb,erb,coffee Polling: false Starting LiveReload v0.6.2 for /srv/http/example.com/-d on port 35729. Watching /srv/http/example.com/-d... Browser connected. Client message: {"command":"hello","protocols":["http://livereload.com/protocols/official-6","http://livereload.com/protocols/official-7"],"ver":"2.2.2","ext":"Chrome","extver":"2.1.0"} Client requested handshake... Handshaking with client using protocol 7... Client message: {"command":"info","plugins":{"less":{"disable":false,"version":"1.0"}},"url":"http://localhost/example.com/test-page/"}
Listing phpcs rules and excluding commenting sniff
While testing WordPress-Coding-Standards PHP_CodeSniffer rules (sniffs) to enforce WordPress coding conventions the following command came handy. It lists all enabled rules:
phpcs --standard=phpcs.xml -e
Output example
The WordPress Project standard contains 100 sniffs Generic (34 sniffs) ------------------- Generic.Classes.DuplicateClassName Generic.Classes.OpeningBraceSameLine Generic.CodeAnalysis.EmptyStatement Generic.CodeAnalysis.ForLoopShouldBeWhileLoop Generic.CodeAnalysis.ForLoopWithTestFunctionCall Generic.CodeAnalysis.JumbledIncrementer Generic.CodeAnalysis.UnconditionalIfStatement Generic.CodeAnalysis.UnnecessaryFinalModifier Generic.CodeAnalysis.UnusedFunctionParameter Generic.CodeAnalysis.UselessOverridingMethod Generic.Commenting.DocComment Generic.Commenting.Fixme Generic.Commenting.Todo Generic.ControlStructures.InlineControlStructure Generic.Files.ByteOrderMark Generic.Files.EndFileNewline Generic.Files.LineEndings Generic.Formatting.DisallowMultipleStatements Generic.Formatting.SpaceAfterCast Generic.Functions.CallTimePassByReference Generic.Functions.OpeningFunctionBraceKernighanRitchie Generic.NamingConventions.UpperCaseConstantName Generic.PHP.BacktickOperator Generic.PHP.DeprecatedFunctions Generic.PHP.DisallowAlternativePHPTags Generic.PHP.DisallowShortOpenTag Generic.PHP.ForbiddenFunctions Generic.PHP.LowerCaseConstant Generic.PHP.LowerCaseKeyword Generic.PHP.NoSilencedErrors Generic.PHP.Syntax Generic.Strings.UnnecessaryStringConcat Generic.WhiteSpace.DisallowSpaceIndent Generic.WhiteSpace.ScopeIndent PEAR (2 sniffs) --------------- PEAR.Functions.FunctionCallSignature PEAR.NamingConventions.ValidClassName PSR2 (3 sniffs) --------------- PSR2.ControlStructures.ElseIfDeclaration PSR2.ControlStructures.SwitchDeclaration PSR2.Files.ClosingTag Squiz (26 sniffs) ----------------- Squiz.Classes.SelfMemberReference Squiz.Commenting.BlockComment Squiz.Commenting.ClassComment Squiz.Commenting.ClosingDeclarationComment Squiz.Commenting.DocCommentAlignment Squiz.Commenting.EmptyCatchComment Squiz.Commenting.FileComment Squiz.Commenting.FunctionComment Squiz.Commenting.FunctionCommentThrowTag Squiz.Commenting.InlineComment Squiz.Commenting.VariableComment Squiz.ControlStructures.ControlSignature Squiz.Functions.FunctionDeclarationArgumentSpacing Squiz.Functions.FunctionDuplicateArgument Squiz.Operators.IncrementDecrementUsage Squiz.Operators.ValidLogicalOperators Squiz.PHP.CommentedOutCode Squiz.PHP.DisallowMultipleAssignments Squiz.PHP.DisallowSizeFunctionsInLoops Squiz.PHP.EmbeddedPhp Squiz.PHP.Eval Squiz.PHP.NonExecutableCode Squiz.Strings.ConcatenationSpacing Squiz.Strings.DoubleQuoteUsage Squiz.WhiteSpace.CastSpacing Squiz.WhiteSpace.SuperfluousWhitespace WordPress (35 sniffs) --------------------- WordPress.Arrays.ArrayDeclarationSpacing WordPress.Arrays.ArrayIndentation WordPress.Arrays.ArrayKeySpacingRestrictions WordPress.Arrays.CommaAfterArrayItem WordPress.CSRF.NonceVerification WordPress.Classes.ClassInstantiation WordPress.CodeAnalysis.EmptyStatement WordPress.DB.RestrictedClasses WordPress.DB.RestrictedFunctions WordPress.Files.FileName WordPress.Functions.DontExtract WordPress.Functions.FunctionCallSignatureNoParams WordPress.NamingConventions.PrefixAllGlobals WordPress.NamingConventions.ValidFunctionName WordPress.NamingConventions.ValidHookName WordPress.NamingConventions.ValidVariableName WordPress.PHP.DevelopmentFunctions WordPress.PHP.DiscouragedPHPFunctions WordPress.PHP.POSIXFunctions WordPress.PHP.StrictComparisons WordPress.PHP.StrictInArray WordPress.PHP.YodaConditions WordPress.Variables.GlobalVariables WordPress.WP.AlternativeFunctions WordPress.WP.CapitalPDangit WordPress.WP.DeprecatedClasses WordPress.WP.DeprecatedFunctions WordPress.WP.DeprecatedParameters WordPress.WP.DiscouragedFunctions WordPress.WP.EnqueuedResources WordPress.WP.I18n WordPress.WP.PreparedSQL WordPress.WhiteSpace.CastStructureSpacing WordPress.WhiteSpace.DisallowInlineTabs WordPress.WhiteSpace.OperatorSpacing
Now I can disable that annoys me 🙂
Spacecraft software
Finally came across an article which describes now is software written for spacecrafts.
In the modern software environment, 80% of the cost of the software is spent after the software is written the first time — they don’t get it right the first time, so they spend time flogging it. In shuttle, they do it right the first time. And they don’t change the software without changing the blueprint. That’s why their software is so perfect.
Software is getting more and more common and more and more important, but it doesn’t seem to be getting more and more reliable.
money is not the critical constraint: the groups $35 million per year budget is a trivial slice of the NASA pie, but on a dollars-per-line basis, it makes the group among the nation’s most expensive software organizations
From http://www.fastcompany.com/magazine/06/writestuff.html
