.checks.rc

#!/bin/sh

_CHECKS_DIR=`dirname "$(readlink -f "$0")"`

# --------------------
# If log functions do not exist, define some simple ones.
[[ $(type -t _log_error) ]] || _log_error() {
    echo "[ERR] $1"
}

[[ $(type -t _log_warning) ]] || _log_warning() {
    echo "[WRN] $1"
}

# --------------------
# Check functions
_check_file_exist() {
    if [[ ! -f "$1"  ]]; then
        _log_error "'$1' does not exists."
        exit 1
    fi
}

_check_file_not_exist() {
    if [[ -f "$1"  ]]; then
        if [[ "$2" == "overwrite" ]]; then
            _log_warning "'$1' already exists and will be overwritten."
            rm "$1"
            if [[ -f "$1"  ]]; then
                _log_error "Fail to remove '$1'."
                exit 1
            fi
        else
            _log_error "'$1' already exists."
            exit 1
        fi
    fi
}

_check_dir_exist() {
    if [[ ! -d "$1" ]]; then
        if [[ "$2" == "mkdir" ]]; then
            _log_warning "'$1' does not exist and will be created."
            mkdir -p "$1"
            if [[ ! -d "$1" ]]; then
                _log_error "Fail to create '$1'."
                exit 1
            fi
        else
            _log_error "'$1' does not exist."
            exit 1
        fi
    fi
}

_check_dir_not_exist() {
    if [[ -d "$1" ]]; then
        _log_error "'$1' already exists."
        exit 1
    fi
}

_check_drive_exist() {
    if [[ -d "$1/" ]]; then
        _log_error "$1 already exists."
        exit 1
    fi
}