Snippet to convert a list of attributes to a Ruby hash.
Input:
cn:ID sn:Surname fn:FirstName
Target output:
"cn" => "ID", "sn" => "Surname", "fn" => "FirstName",
Regex:
/(.+?)(?=\:):(.*$)/"$1" => "$2",/
Category: Lab Notes
colori(s|z)ed ls output on macos
As is often the case, the nix defaults for ls are spartan. I finally got around to wrestling my ls color settings into submission. On macos/zsh, gdircolors gave inconsistent results, so I set the LS_COLORS environment var directly.
Snips:
install gls
brew install coreutils
.zshrc
if [[ "$(uname)" = "Darwin" ]]; then # macos uses a different 'ls' export CLICOLOR=1 source "$XDG_CONFIG_HOME/zsh/.dir_colors" alias l="gls -ahF --group-directories-first --color=always" else alias l="ls -ah --color --group-directories-first" fi
~/.config/zsh/.dir_colors
# Attribute codes: # 00=none 01=bold 04=underscore 05=blink 07=reverse 08=concealed # Text color codes: # 30=black 31=red 32=green 33=yellow 34=blue 35=magenta 36=cyan 37=white # Background color codes: # 40=black 41=red 42=green 43=yellow 44=blue 45=magenta 46=cyan 47=white export LS_COLORS='rs=0:di=00;34:ln=00;37:mh=00:pi=40;33:so=00;35:do=00;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=00;33:*.tar=01;31:*.tgz=01;31:'
The full goodies:
from rbenv to chruby: zsh startup time
Just switched from rbenv to chruby using this guide, and my zsh startup time improved by about 10 seconds. I’d been meaning to debug why it was taking so long — bonus!
Here’s the offending lines that were removed from ~/.zlogin:
export PATH="$HOME/.rbenv/bin:$PATH" eval "$(rbenv init -)"
byobu and tmux plugin manager (tpm)
It seems that byobu triggers a known bug with tpm which then fails to load any plugins. Fortunately there is a simple fix, in byobu’s .tmux.conf change your plugin formatting like so:
set -g @tpm_plugins ' \ tmux-plugins/tpm \ nhdaly/tmux-better-mouse-mode \ tmux-plugins/tmux-resurrect \ '
If using the XDG directory convention, this line is also needed in .tmux.conf:
set-environment -g TMUX_PLUGIN_MANAGER_PATH "~/.config/byobu/plugins/"
neovim: macos tmux and netrw/vinegar clipboard errors
So it looks like MacOS Sierra broke pbcopy/pbpaste for tmux. This manifests as clipboard errors when using netrw/vinegar in neovim under tmux. (Dunno why netrw is writing to the clipboard but anyways).
The solution is to use Homebrew to reinstall a patched version of reattach-to-user-namespace:
brew uninstall reattach-to-user-namespace brew install reattach-to-user-namespace --with-wrap-pbcopy-and-pbpaste
Although this was annoying, it did lead to running brew cleanup which reclaimed 3.8GB of disk space. Jinkies!
vim: render plantuml
When using the plugin plantuml-syntax, add the following one-liner in .vimrc to render a PNG in the current directory when ‹leader›b is pressed:
autocmd FileType plantuml nnoremap <buffer> <leader>b :!java -jar ~/bin/plantuml.jar -o %:p:h %<cr>
This assumes Linux and that plantuml.jar lives in ~/bin. If working from a Dropbox directory, the image can then easily be viewed in a web browser.
byobu and emacs compatibility
It seems that byobu‘s defaults don’t play nice with emacs, eating important key sequences such as <C-h> and breaking color schemes. Adding the following line to ~/.byobu/.tmux.conf fixed the issue:
set -g default-terminal "screen-256color"
what time is it in that city?
My iOS app needs to know what hour of the day it is in a particular city.
NSDate *date = [NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSCalendarUnit unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;
[calendar setTimeZone:[NSTimeZone timeZoneWithName:@"Australia/Canberra"]];
NSDateComponents *dateComponents = [calendar components:unitFlags fromDate:date];
NSInteger hour = [dateComponents hour];
if (hour > 2 && hour < 12) { // app is only available between midday and 2am
// tell the user to come back later
}
To see a list of available timezone names, launch Terminal on OSX and type:
ls /usr/share/zoneinfo/
turnspike 