oh-my-zsh/lib/theme-and-appearance.zsh

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# ls colors
autoload -U colors && colors
# Enable ls colors
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export LSCOLORS="Gxfxcxdxbxegedabagacad"
# TODO organise this chaotic logic
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if [[ "$DISABLE_LS_COLORS" != "true" ]]; then
# Find the option for using colors in ls, depending on the version
if [[ "$OSTYPE" == netbsd* ]]; then
# On NetBSD, test if "gls" (GNU ls) is installed (this one supports colors);
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# otherwise, leave ls as is, because NetBSD's ls doesn't support -G
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gls --color -d . &>/dev/null && alias ls='gls --color=tty'
elif [[ "$OSTYPE" == openbsd* ]]; then
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# On OpenBSD, "gls" (ls from GNU coreutils) and "colorls" (ls from base,
# with color and multibyte support) are available from ports. "colorls"
# will be installed on purpose and can't be pulled in by installing
# coreutils, so prefer it to "gls".
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gls --color -d . &>/dev/null && alias ls='gls --color=tty'
colorls -G -d . &>/dev/null && alias ls='colorls -G'
elif [[ "$OSTYPE" == darwin* ]]; then
# this is a good alias, it works by default just using $LSCOLORS
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ls -G . &>/dev/null && alias ls='ls -G'
# only use coreutils ls if there is a dircolors customization present ($LS_COLORS or .dircolors file)
# otherwise, gls will use the default color scheme which is ugly af
[[ -n "$LS_COLORS" || -f "$HOME/.dircolors" ]] && gls --color -d . &>/dev/null && alias ls='gls --color=tty'
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else
# For GNU ls, we use the default ls color theme. They can later be overwritten by themes.
if [[ -z "$LS_COLORS" ]]; then
(( $+commands[dircolors] )) && eval "$(dircolors -b)"
fi
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ls --color -d . &>/dev/null && alias ls='ls --color=tty' || ls -G . &>/dev/null && alias ls='ls -G'
# Take advantage of $LS_COLORS for completion as well.
zstyle ':completion:*' list-colors "${(s.:.)LS_COLORS}"
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fi
fi
setopt auto_cd
setopt multios
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setopt prompt_subst
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[[ -n "$WINDOW" ]] && SCREEN_NO="%B$WINDOW%b " || SCREEN_NO=""
# Apply theming defaults
PS1="%n@%m:%~%# "
# git theming default: Variables for theming the git info prompt
ZSH_THEME_GIT_PROMPT_PREFIX="git:(" # Prefix at the very beginning of the prompt, before the branch name
ZSH_THEME_GIT_PROMPT_SUFFIX=")" # At the very end of the prompt
ZSH_THEME_GIT_PROMPT_DIRTY="*" # Text to display if the branch is dirty
ZSH_THEME_GIT_PROMPT_CLEAN="" # Text to display if the branch is clean