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Implementation finish!
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@taeguk
taeguk committed Dec 30, 2015
1 parent e88d2e1 commit a937476
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4 changes: 2 additions & 2 deletions README.md
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# vim-switcher
Switch vim settings easily
# vimsw
Switch a setting easily among several vim settings.
341 changes: 341 additions & 0 deletions vimsw
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#!/usr/bin/env bash

VERSION="0.0.1"

# global constants
VIMSW_DIR="$HOME/.vimsw"
VIMSW_CONFIG_FILE="$VIMSW_DIR/config"
VIMSW_SETTING_DIR="$VIMSW_DIR/settings"
VIMSW_VIMRC_PREFIX="$VIMSW_SETTING_DIR/vimrc_" # .vimrc_name
VIMSW_VIM_PREFIX="$VIMSW_SETTING_DIR/vim_" # .vim_name
ORG_VIMRC="$HOME/.vimrc"
ORG_VIM="$HOME/.vim"
MAX_SETTING_NUM=200
NO_CUR_SETTING="nothing"

#installed : 1(installed), 0(uninstalled)
#setting_num : # of settings.
#settings : array of settings. settings[id] = setting name.
#cur_id : id of current setting.

# $1 : name of variable where result is stored in.
cf_load_cur_id() {
local id=`sed -n '1p' "$VIMSW_CONFIG_FILE"`

if [ "$id" = "$NO_CUR_SETTING" ]; then
id=$MAX_SETTING_NUM
fi

eval "$1=$id"
}
# $1 : cur_id
cf_store_cur_id() {
sed -i '1s/^.*$/'"$1"'/' "$VIMSW_CONFIG_FILE"
}
# $1 : name of variable where result is stored in.
cf_load_setting_num() {
eval "$1=`sed -n '2p' \"\$VIMSW_CONFIG_FILE\"`"
}
# $1 : setting_num
cf_store_setting_num() {
sed -i '2s/^.*$/'"$1"'/' "$VIMSW_CONFIG_FILE"
}
# $1 : id of target setting
cf_del_setting_line() {
local line=`expr $1 + 3`
sed -i "$line"'d' "$VIMSW_CONFIG_FILE"
}

get_id_by_name() {
local idx=0
for name in "${settings[@]}"
do
if [ "$name" = "$1" ]; then
return $idx
fi
idx=`expr $idx + 1`
done
return $MAX_SETTING_NUM
}

# $1 : name
name_exists() {
get_id_by_name "$1"
local id=$?
if [ $id -ge $MAX_SETTING_NUM ]; then
return 1
else
return 0
fi
}

load_config() {
cf_load_cur_id cur_id
cf_load_setting_num setting_num
local idx=-2 # skip 2 lines.
#sed -n '3,$p' "$VIMSW_CONFIG_FILE" |
while read name; do
if [ $idx -ge $MAX_SETTING_NUM ]; then
break
fi
if [ $idx -ge 0 ]; then
settings[$idx]="$name"
fi
idx=`expr $idx + 1`
done < "$VIMSW_CONFIG_FILE"
}

init() {
if [[ ! -d "$VIMSW_DIR" || ! -d "$VIMSW_SETTING_DIR" ||
! -f "$VIMSW_CONFIG_FILE" ]]; then
# if not installed
installed=0
else
# if installed
installed=1
load_config
fi
#echo -n "[I] initializing finished. installed : $installed, "
#echo "setting_num : $setting_num"
return 0
}

install() {
# 1. return 1 if installed.
# 2. install.
if [ $installed -eq 1 ]; then
# if installed
echo "[!] Already installed."
return 1
fi
if [ -e "$VIMSW_DIR" ]; then
# if directory exists
echo "[!] Cannot install in the system."
return 1
fi
mkdir "$VIMSW_DIR" || return 1
mkdir "$VIMSW_SETTING_DIR" || return 1
echo "$NO_CUR_SETTING" > "$VIMSW_CONFIG_FILE" || return 1
echo 0 >> "$VIMSW_CONFIG_FILE" || return 1

echo "[*] install succesfully!"
return 0
}

uninstall() {
rm -rf "$VIMSW_DIR"

echo "[*] uninstall succesfully!"
return 0
}
# $1 : name of setting.
reg_setting() {
if [ $setting_num -ge $MAX_SETTING_NUM ]; then
echo "[!] Max the number of settings is $MAX_SETTING_NUM!"
return 1
fi
if name_exists "$1"; then
# name is duplicated.
echo "[!] name is duplicated."
return 1
fi
if [ -e "$ORG_VIMRC" ]; then
cp -f "$ORG_VIMRC" "$VIMSW_VIMRC_PREFIX$1"
fi
if [ -e "$ORG_VIM" ]; then
cp -rf "$ORG_VIM" "$VIMSW_VIM_PREFIX$1"
fi
settings[$setting_num]="$1"
cf_store_cur_id "$setting_num"
setting_num=`expr $setting_num + 1`
cf_store_setting_num "$setting_num"
echo "$1" >> "$VIMSW_CONFIG_FILE"

echo "[*] register setting succesfully!"
return 0
}

# $1 : name of target setting.
del_setting() {
get_id_by_name "$1"
local target_id=$?
if [ $target_id -ge $MAX_SETTING_NUM ]; then
echo "[!] $1 doesn't exist."
return 1
fi
if [ $target_id -eq $cur_id ]; then
echo "[!] Can't delete setting where you are in."
return 1
fi
rm -rf "$VIMSW_VIM_PREFIX$1" "$VIMSW_VIMRC_PREFIX$1"
if [[ $cur_id -lt $MAX_SETTING_NUM && $cur_id -gt $target_id ]]; then
cur_id=`expr $cur_id - 1`
fi
setting_num=`expr $setting_num - 1`
cf_store_cur_id "$cur_id"
cf_store_setting_num "$setting_num"
cf_del_setting_line $target_id
load_config

echo "[*] delete setting succesfully!"
return 0
}

upd_setting() {
if [ $cur_id -ge $MAX_SETTING_NUM ]; then
# it is not error!
return 0
else
local name=${settings[$cur_id]}
if [ -e "$VIMSW_VIMRC_PREFIX$name" ]; then
rm -rf "$VIMSW_VIMRC_PREFIX$name"
fi
if [ -e "$VIMSW_VIM_PREFIX$name" ]; then
rm -rf "$VIMSW_VIM_PREFIX$name"
fi
if [ -f "$ORG_VIMRC" ]; then
cp -f "$ORG_VIMRC" "$VIMSW_VIMRC_PREFIX$name"
fi
if [ -d "$ORG_VIM" ]; then
cp -rf "$ORG_VIM" "$VIMSW_VIM_PREFIX$name"
fi
fi
echo "[*] update setting succesfully!"
return 0
}

# $1 : name of target setting.
switch() {
get_id_by_name "$1"
local target_id=$?
if [ $target_id -ge $MAX_SETTING_NUM ]; then
echo "[!] $1 doesn't exists."
return 1
fi
if [ $target_id -eq $cur_id ]; then
echo "[!] Already you are in $1 setting."
return 1
fi
#if ! upd_setting > /dev/null; then
# echo "[!] fail to update setting."
# return 1
#fi
if [ -e "$ORG_VIMRC" ]; then
rm -rf "$ORG_VIMRC"
fi
if [ -e "$ORG_VIM" ]; then
rm -rf "$ORG_VIM"
fi
if [ -f "$VIMSW_VIMRC_PREFIX$1" ]; then
cp -f "$VIMSW_VIMRC_PREFIX$1" "$ORG_VIMRC"
fi
if [ -d "$VIMSW_VIM_PREFIX$1" ]; then
cp -rf "$VIMSW_VIM_PREFIX$1" "$ORG_VIM"
fi
local b_cur_id=$cur_id
cur_id=$target_id
cf_store_cur_id "$cur_id"

echo "[*] switch from ${settings[$b_cur_id]} to $1 succesfully!"
return 0
}

show_list() {
local idx=0
echo "----- list of settings -----"
for name in "${settings[@]}"
do
if [ $idx -eq $cur_id ]; then
echo " > $name"
else
echo " $name"
fi
idx=`expr $idx + 1`
done
if [ $cur_id -ge $MAX_SETTING_NUM ]; then
echo " * current setting is not registed!"
fi
echo "----------------------------"
}

show_help() {
show_usage
}

not_install_msg() {
echo "[!] Not installed in the system."
}

execute() {
if [ $# -eq 0 ]; then
if [ $installed -eq 0 ]; then
show_usage;
return 1;
fi
show_list
return 0
fi

local key="$1"
case $key in
install)
install || (echo "[!] install failed. "; return 1)
;;
uninstall)
uninstall || return 1
;;
register|reg|r)
if [ $installed -eq 0 ]; then not_install_msg; return 1; fi
if [ -z "$2" ]; then show_usage; return 1; fi
reg_setting "$2" || return 1
;;
delete|del|d)
if [ $installed -eq 0 ]; then not_install_msg; return 1; fi
if [ -z "$2" ]; then show_usage; return 1; fi
del_setting "$2" || return 1
;;
update|upd|u)
if [ $installed -eq 0 ]; then not_install_msg; return 1; fi
upd_setting || return 1
;;
switch|swit|s)
if [ $installed -eq 0 ]; then not_install_msg; return 1; fi
if [ -z "$2" ]; then show_usage; return 1; fi
switch "$2" || return 1
;;
list|l)
if [ $installed -eq 0 ]; then not_install_msg; return 1; fi
show_list
;;
help|h)
show_help
;;
*)
show_usage
return 1
;;
esac
return 0
}

show_usage() {
echo "Usage: vimsw [COMMAND] [args]
Commands:
install : install vimsw in the home directory.
uninstall : uninstall vimsw.
register|reg|r <name> : register current setting to <name>.
delete|del|d <name> : delete setting whose name is <name>.
update|upd|u : update changes of current setting.
switch|swit|s <name> : switch setting to <name>.
list|l : list all settings.
help|h : show help massages.
"
}

main() {
init || return 1
execute "$@" || return 1
}

main "$@" || exit 1
exit 0
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