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Customize colors in bash #127

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7c652b1
Separate theme colors from prompt logic and allow to change colors in…
yutv Nov 21, 2017
90334f7
Updated README.md about changing colors in ~/.bashrc
yutv Nov 21, 2017
c385252
Updated README.md about changing colors in ~/.bashrc. Fixed path to p…
yutv Nov 21, 2017
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23 changes: 23 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,29 @@ If you prefer to keep oh-my-git repository in a different directory, just modify

source /wherever-you-want/oh-my-git/prompt.sh

## Change colors in bash

You can easily change theme colors in bash. For example to change the red background to green just put OMG_THEME variable with overridden colors into ~/.bashrc before including prompt.sh:

declare -A OMG_THEME=(["right_side_bg"]='green')
source $HOME/oh-my-git/prompt.sh

**List of color variables**

| OMG_THEME key | default value |
| -------------- | ------------- |
|left_side_color | black |
|left_side_bg | white |
|left_icon_color | red |
|stash_color | yellow |
|right_side_color| black |
|right_side_bg | red |
|right_icon_color| white |
|default_bg | black |

**Possible colors:** "black", "red", "green", "yellow", "blue", "purple", "cyan" and "white".


## zsh

With antigen installed, just add
Expand Down
132 changes: 74 additions & 58 deletions prompt.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,42 @@ if [ -n "${BASH_VERSION}" ]; then
PROMPT='$(build_prompt)'
RPROMPT='%{$reset_color%}%T %{$fg_bold[white]%} %n@%m%{$reset_color%}'

declare -A colors=(
["black"]=30
["red"]=31
["green"]=32
["yellow"]=33
["blue"]=34
["purple"]=35
["cyan"]=36
["white"]=37
)

declare -A backgrounds=(
["black"]=40
["red"]=41
["green"]=42
["yellow"]=43
["blue"]=44
["purple"]=45
["cyan"]=46
["white"]=47
)

if [ ${#OMG_THEME[@]} -eq 0 ]; then
declare -A OMG_THEME
fi

#Assign default theme colors if they are not already defined in ~/.bashrc
[ ! ${OMG_THEME["left_side_color"]+abc} ] && OMG_THEME["left_side_color"]="black"
[ ! ${OMG_THEME["left_side_bg"]+abc} ] && OMG_THEME["left_side_bg"]="white"
[ ! ${OMG_THEME["left_icon_color"]+abc} ] && OMG_THEME["left_icon_color"]="red"
[ ! ${OMG_THEME["stash_color"]+abc} ] && OMG_THEME["stash_color"]="yellow"
[ ! ${OMG_THEME["right_side_color"]+abc} ] && OMG_THEME["right_side_color"]="black"
[ ! ${OMG_THEME["right_side_bg"]+abc} ] && OMG_THEME["right_side_bg"]="red"
[ ! ${OMG_THEME["right_icon_color"]+abc} ] && OMG_THEME["right_icon_color"]="white"
[ ! ${OMG_THEME["default_bg"]+abc} ] && OMG_THEME["default_bg"]="black"

function enrich_append {
local flag=$1
local symbol=$2
Expand All @@ -43,6 +79,13 @@ if [ -n "${BASH_VERSION}" ]; then
echo -n "${color}${symbol} "
}

function get_color {
local color=${colors[$1]}
local background=${backgrounds[$2]}
local attr=${3:-0}
echo "\e[${attr};${color};${background}m"
}

function custom_build_prompt {
local enabled=${1}
local current_commit_hash=${2}
Expand Down Expand Up @@ -71,70 +114,44 @@ if [ -n "${BASH_VERSION}" ]; then
local prompt=""
local original_prompt=$PS1


# foreground
local black='\e[0;30m'
local red='\e[0;31m'
local green='\e[0;32m'
local yellow='\e[0;33m'
local blue='\e[0;34m'
local purple='\e[0;35m'
local cyan='\e[0;36m'
local white='\e[0;37m'

#background
local background_black='\e[40m'
local background_red='\e[41m'
local background_green='\e[42m'
local background_yellow='\e[43m'
local background_blue='\e[44m'
local background_purple='\e[45m'
local background_cyan='\e[46m'
local background_white='\e[47m'

local reset='\e[0m' # Text Reset]'

local black_on_white="${black}${background_white}"
local yellow_on_white="${yellow}${background_white}"
local red_on_white="${red}${background_white}"
local red_on_black="${red}${background_black}"
local black_on_red="${black}${background_red}"
local white_on_red="${white}${background_red}"
local yellow_on_red="${yellow}${background_red}"


# Flags
local omg_default_color_on="${black_on_white}"
#Theme Variables: Text Color + Background
local left_side=$(get_color ${OMG_THEME["left_side_color"]} ${OMG_THEME["left_side_bg"]})
local left_icon=$(get_color ${OMG_THEME["left_icon_color"]} ${OMG_THEME["left_side_bg"]})
local stash=$(get_color ${OMG_THEME["stash_color"]} ${OMG_THEME["left_side_bg"]})
local right_side=$(get_color ${OMG_THEME["right_side_color"]} ${OMG_THEME["right_side_bg"]})
local right_icon=$(get_color ${OMG_THEME["right_icon_color"]} ${OMG_THEME["right_side_bg"]})
local omg_last_symbol_color=$(get_color ${OMG_THEME["right_side_bg"]} ${OMG_THEME["default_bg"]})

if [[ $is_a_git_repo == true ]]; then
# on filesystem
prompt="${black_on_white} "
prompt+=$(enrich_append $is_a_git_repo $omg_is_a_git_repo_symbol "${black_on_white}")
prompt+=$(enrich_append $has_stashes $omg_has_stashes_symbol "${yellow_on_white}")
prompt="${left_side}"
prompt+=$(enrich_append $is_a_git_repo $omg_is_a_git_repo_symbol "${left_side}")
prompt+=$(enrich_append $has_stashes $omg_has_stashes_symbol "${stash}")

prompt+=$(enrich_append $has_untracked_files $omg_has_untracked_files_symbol "${red_on_white}")
prompt+=$(enrich_append $has_modifications $omg_has_modifications_symbol "${red_on_white}")
prompt+=$(enrich_append $has_deletions $omg_has_deletions_symbol "${red_on_white}")

prompt+=$(enrich_append $has_untracked_files $omg_has_untracked_files_symbol "${left_icon}")
prompt+=$(enrich_append $has_modifications $omg_has_modifications_symbol "${left_icon}")
prompt+=$(enrich_append $has_deletions $omg_has_deletions_symbol "${left_icon}")

# ready
prompt+=$(enrich_append $has_adds $omg_has_adds_symbol "${black_on_white}")
prompt+=$(enrich_append $has_modifications_cached $omg_has_cached_modifications_symbol "${black_on_white}")
prompt+=$(enrich_append $has_deletions_cached $omg_has_cached_deletions_symbol "${black_on_white}")
prompt+=$(enrich_append $has_adds $omg_has_adds_symbol "${left_side}")
prompt+=$(enrich_append $has_modifications_cached $omg_has_cached_modifications_symbol "${left_side}")
prompt+=$(enrich_append $has_deletions_cached $omg_has_cached_deletions_symbol "${left_side}")

# next operation

prompt+=$(enrich_append $ready_to_commit $omg_ready_to_commit_symbol "${red_on_white}")
prompt+=$(enrich_append $ready_to_commit $omg_ready_to_commit_symbol "${left_icon}")

# where

prompt="${prompt} ${white_on_red} ${black_on_red}"
prompt="${prompt} ${right_icon} ${right_side}"
if [[ $detached == true ]]; then
prompt+=$(enrich_append $detached $omg_detached_symbol "${white_on_red}")
prompt+=$(enrich_append $detached "(${current_commit_hash:0:7})" "${black_on_red}")
else
prompt+=$(enrich_append $detached $omg_detached_symbol "${right_icon}")
prompt+=$(enrich_append $detached "(${current_commit_hash:0:7})" "${right_side}")
else
if [[ $has_upstream == false ]]; then
prompt+=$(enrich_append true "-- ${omg_not_tracked_branch_symbol} -- (${current_branch})" "${black_on_red}")
prompt+=$(enrich_append true "-- ${omg_not_tracked_branch_symbol} -- (${current_branch})" "${right_side}")
else
if [[ $will_rebase == true ]]; then
local type_of_upstream=$omg_rebase_tracking_branch_symbol
Expand All @@ -143,35 +160,34 @@ if [ -n "${BASH_VERSION}" ]; then
fi

if [[ $has_diverged == true ]]; then
prompt+=$(enrich_append true "-${commits_behind} ${omg_has_diverged_symbol} +${commits_ahead}" "${white_on_red}")
prompt+=$(enrich_append true "-${commits_behind} ${omg_has_diverged_symbol} +${commits_ahead}" "${right_icon}")
else
if [[ $commits_behind -gt 0 ]]; then
prompt+=$(enrich_append true "-${commits_behind} ${white_on_red}${omg_can_fast_forward_symbol}${black_on_red} --" "${black_on_red}")
prompt+="${right_side}-${commits_behind} ${right_icon}${omg_can_fast_forward_symbol}${right_side} --"
fi
if [[ $commits_ahead -gt 0 ]]; then
prompt+=$(enrich_append true "-- ${white_on_red}${omg_should_push_symbol}${black_on_red} +${commits_ahead}" "${black_on_red}")
prompt+="${right_side}-- ${right_icon}${omg_should_push_symbol}${right_side} +${commits_ahead}"
fi
if [[ $commits_ahead == 0 && $commits_behind == 0 ]]; then
prompt+=$(enrich_append true " -- -- " "${black_on_red}")
prompt+="${right_side} -- -- "
fi

fi
prompt+=$(enrich_append true "(${current_branch} ${type_of_upstream} ${upstream//\/$current_branch/})" "${black_on_red}")
prompt+="${right_side}(${current_branch} ${type_of_upstream} ${upstream//\/$current_branch/})"
fi
fi
prompt+=$(enrich_append ${is_on_a_tag} "${omg_is_on_a_tag_symbol} ${tag_at_current_commit}" "${black_on_red}")
prompt+=$(enrich_append ${is_on_a_tag} "${omg_is_on_a_tag_symbol} ${tag_at_current_commit}" "${right_side}")
prompt+="${omg_last_symbol_color}${reset}\n"
prompt+="$(eval_prompt_callback_if_present)"
prompt+="${omg_second_line}"
else
prompt+="$(eval_prompt_callback_if_present)"
prompt+="${omg_ungit_prompt}"
fi

echo "${prompt}"
}

PS2="${yellow}→${reset} "
PS2="\e[0;33m→${reset} "

function bash_prompt() {
PS1="$(build_prompt)"
Expand Down