Folder bookmarks in bash

Bash bookmarks

# This is a compilation of scripts that will allow you to manage directory bookmarks
#
# I recommend setting following macros:

alias ba='[where you put these]/set.sh'
alias bl='[where you put these]/get.sh'
alias br='[where you put these]/delete.sh'

g() {
  cd "$(bl $1)"
}

delete.sh

#!/bin/bash

function die ()
{
    echo "$1" 1>&2
    exit 1
}

name="$1"
path="$2"

if [ -z "$name" ]; then
    die "Provide name for the record";
fi

source="${BASH_SOURCE[0]}"
here="$( cd -P "$( dirname "$source" )" && pwd )"
db="$here/database.json"

if [ ! -f "$db" ]; then
    echo '[]' > "$db"
fi

content=$(cat "$db" | jq ".[] | select(.name != \"$name\")" | jq -s --tab)
echo "$content" > "$db"

get.sh

#!/bin/bash

name="$1"

source="${BASH_SOURCE[0]}"
here="$( cd -P "$( dirname "$source" )" && pwd )"
db="$here/database.json"

if [ ! -f "$db" ]; then
    echo '[]' > "$db"
fi

if [ -z "$name" ]; then
    for row in $(cat "$db" | jq "map(.name+\"@\"+.path)" | jq -r .[]); do
        name=$(echo $row | cut -f1 -d@)
        path=$(echo $row | cut -f2 -d@)

        printf '%-10s' $name
        echo $path
    done
    exit 0
fi

path=$(cat "$db" | jq -r ".[] | select(.name==\"$name\").path")

if [ -z "$path" ]; then
    exit 3
fi

echo $path

set.sh

#!/bin/bash

function die ()
{
    echo "$1" 1>&2
    exit 1
}

name="$1"
path="$2"

if [ -z "$name" ]; then
    die "Provide name for the record";
fi

if [ -z "$path" ]; then
    die "Provide path for the record";
fi

source="${BASH_SOURCE[0]}"
here="$( cd -P "$( dirname "$source" )" && pwd )"
db="$here/database.json"

if [ ! -f "$db" ]; then
    echo '[]' > "$db"
fi

current="$($here/get.sh "$name")"

if [ -z "$current" ]; then
    content=$(cat "$db" | jq ". += [{\"name\": \"$name\", \"path\": \"$path\"}]")
else
    content=$(cat "$db" | jq "map(.path = if (.name == \"$name\") then \"$path\" else .path end )")
fi

echo "$content" > "$db"