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installer: use terminfo for portable escape sequences

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Do not use terminal visual effects if not connected to a terminal.
This commit is contained in:
Andrew Janke
2015-07-06 20:18:32 -04:00
parent 19ea867a3a
commit 8cf610089d
2 changed files with 59 additions and 23 deletions
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43
tools/upgrade.sh
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@@ -1,16 +1,37 @@
printf '\033[0;34m%s\033[0m\n' "Upgrading Oh My Zsh"
# Use colors, but only if connected to a terminal, and that terminal
# supports them.
ncolors=$(tput colors)
if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
RED=="$(tput setaf 1)"
GREEN="$(tput setaf 2)"
YELLOW="$(tput setaf 3)"
BLUE="$(tput setaf 4)"
BOLD="$(tput bold)"
NORMAL="$(tput sgr0)"
else
RED=""
GREEN=""
YELLOW=""
BLUE=""
BOLD=""
NORMAL=""
fi
printf "${BLUE}%s${NORMAL}\n" "Upgrading Oh My Zsh"
cd "$ZSH"
if git pull --rebase --stat origin master
then
printf '\033[0;32m%s\033[0m\n' ' __ __ '
printf '\033[0;32m%s\033[0m\n' ' ____ / /_ ____ ___ __ __ ____ _____/ /_ '
printf '\033[0;32m%s\033[0m\n' ' / __ \/ __ \ / __ `__ \/ / / / /_ / / ___/ __ \ '
printf '\033[0;32m%s\033[0m\n' '/ /_/ / / / / / / / / / / /_/ / / /_(__ ) / / / '
printf '\033[0;32m%s\033[0m\n' '\____/_/ /_/ /_/ /_/ /_/\__, / /___/____/_/ /_/ '
printf '\033[0;32m%s\033[0m\n' ' /____/ '
printf '\033[0;34m%s\033[0m\n' 'Hooray! Oh My Zsh has been updated and/or is at the current version.'
printf '\033[0;34m%s\033[1m%s\033[0m\n' 'To keep up on the latest news and updates, follow us on twitter: ' 'http://twitter.com/ohmyzsh'
printf '\033[0;34m%s\033[1m%s\033[0m\n' 'Get your Oh My Zsh swag at: ' 'http://shop.planetargon.com/'
printf '%s' "$GREEN"
printf '%s\n' ' __ __ '
printf '%s\n' ' ____ / /_ ____ ___ __ __ ____ _____/ /_ '
printf '%s\n' ' / __ \/ __ \ / __ `__ \/ / / / /_ / / ___/ __ \ '
printf '%s\n' '/ /_/ / / / / / / / / / / /_/ / / /_(__ ) / / / '
printf '%s\n' '\____/_/ /_/ /_/ /_/ /_/\__, / /___/____/_/ /_/ '
printf '%s\n' ' /____/ '
printf "${BLUE}%s\n" "Hooray! Oh My Zsh has been updated and/or is at the current version."
printf "${BLUE}${BOLD}%s${NORMAL}\n" "To keep up on the latest news and updates, follow us on twitter: http://twitter.com/ohmyzsh"
printf "${BLUE}${BOLD}%s${NORMAL}\n" "Get your Oh My Zsh swag at: http://shop.planetargon.com/"
else
printf '\033[0;31m%s\033[0m\n' 'There was an error updating. Try again later?'
printf "${RED}%s${NORMAL}\n" 'There was an error updating. Try again later?'
fi