:autocmd FileType css set noexpandtab

text

1

Stick this in your .vimrc if your designers leave tabs in their css.

:autocmd FileType css set noexpandtab

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• css, 
• vim, 
• workflow

git config --global alias.unstage "reset HEAD"

bash

1

An alias in git for resetting a staged file.

git config --global alias.unstage "reset HEAD"

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• git

</dev/urandom tr -dc A-Za-z0-9./%? | head -c 10

bash

1

Very interesting way to generate a random string. Doesn't work on Snow Leopard tho.

</dev/urandom tr -dc A-Za-z0-9./%? | head -c 10

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• random, 
• unix

#!/bin/bash

is_def() {
    local checkvar="$1";
    if [[ ${!checkvar+defined} = defined ]]; then
        return 0
    else
        return 1
    fi
}

check_defined() {
  local x;
  for x; do is_def "$x" || return 1; done
  return 0;
}

FOO='bar'

if ! check_defined FOO; then
  echo "If we exit here, that's bad."
  exit 1
fi

if ! check_defined FOO BAT BAZ; then
  echo 'Need some vars for real, exiting.'
  exit 1
fi

bash

1

Check if variables are defined.

#!/bin/bash

is_def() {
    local checkvar="$1";
    if [[ ${!checkvar+defined} = defined ]]; then
        return 0
    else
        return 1
    fi
}

check_defined() {
  local x;
  for x; do is_def "$x" || return 1; done
  return 0;
}

FOO='bar'

if ! check_defined FOO; then
  echo "If we exit here, that's bad."
  exit 1
fi

if ! check_defined FOO BAT BAZ; then
  echo 'Need some vars for real, exiting.'
  exit 1
fi

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• bash, 
• utility

# e.g. 312-567-8912 (US) or 55-11-3312-3412 (Int'l)
phone_re = re.compile(r'^((\d{1,4}[- ]\d{1,3})|(\d{2,3}))[- ](\d{3,4})[- ](\d{4})')

python

1

python regex to match a phone number including international prefix

# e.g. 312-567-8912 (US) or 55-11-3312-3412 (Int'l)
phone_re = re.compile(r'^((\d{1,4}[- ]\d{1,3})|(\d{2,3}))[- ](\d{3,4})[- ](\d{4})')

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• python, 
• regex

mk-query-digest --review D=<database name>,t=<table name>,u=<username>,p='secret' /var/log/mysql/mysql-slow.log

bash

1

parse mysql slow query log with maatkit script and save to database table.

mk-query-digest --review D=<database name>,t=<table name>,u=<username>,p='secret' /var/log/mysql/mysql-slow.log

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• database, 
• monitoring, 
• optimization

from django import forms
from django.contrib.admin import widgets

class ScheduleAdminForm(forms.ModelForm):

    profiles = forms.ModelMultipleChoiceField(
                widget = widgets.FilteredSelectMultiple('Profiles',False),
                queryset = Profile.active_objects.all(),
                help_text = "this doesn't show. bummer.")

    class Meta:
        model = Schedule


class ScheduleAdmin(admin.ModelAdmin):

    form = ScheduleAdminForm

admin.site.register(Schedule, ScheduleAdmin)

python

1

modify django admin field to use specific queryset and form widget.

from django import forms
from django.contrib.admin import widgets

class ScheduleAdminForm(forms.ModelForm):

    profiles = forms.ModelMultipleChoiceField(
                widget = widgets.FilteredSelectMultiple('Profiles',False),
                queryset = Profile.active_objects.all(),
                help_text = "this doesn't show. bummer.")

    class Meta:
        model = Schedule


class ScheduleAdmin(admin.ModelAdmin):

    form = ScheduleAdminForm

admin.site.register(Schedule, ScheduleAdmin)

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• django, 
• forms