Hi guys,

I need your help. I wrote a little script in pure sh (POSIX compliance) to find some information on the system(insys -> in system). The mainly purpose on this script is to provide an easy way to script operations like restart a service or a series of services after an upgrade.

The script is really simple an self-explained. I wrote it in sh to quickly made a real test from users and see if it useful or not. Depending of your feedback i will pass it in C or not.

This is the interface and the help of the script:

66-insys.sh [ -h ] [ -z ] <boolean|request> name

boolean operations:
A boolean operation return 0 for true and 1 for false

    tree-is-enabled: return true if name is enabled.
    service-is-enabled: return true if name is enabled.
    tree-is-initialized: return true if name is initialized.
    service-is-up: return true if name is up.
    tree-is-current: return true if name is current.


request operations:
A request operation return a string(None if nothing is found)

    list-frontend: list of available frontend file on the system.
    tree-find-current: return the name of the current tree or None.
    service-find-tree: return the tree's name of name.
    66-version: return the current version of 66.

Some example of use:

To disable a tree if it enabled

# if ! 66-insys.sh tree-is-enabled root; then 66-tree -D root; fi

To restart a service

# if 66-insys.sh service-is-up ntpd; then tree=$(66-insys.sh service-find-tree ntpd) ; 66-start -t $tree -r ntpd; fi

To list all available service on the system

% 66-insys.sh list-frontend

As any other 66 tool, this script can be launch with root or regular user.

Please guys, test it and make feedback.

Note: the list-frontend, tree-find-current and 66-version operations rely on the /usr/include/66/config.h file.This file must be present on your system to be able to use these operations.

# !/bin/sh

export PROG="${0}"
export CLOCK_ENABLED=0
export COLOR_ENABLED=0
export VERBOSITY=1

INCLUDEDIR="/usr/include/66/config.h"
SYSTEMDIR=""
ADMDIR=""
SYSDIR=""
USERDIR=""
NAME=""
SSVERSION=""

tree_is_enabled=0
service_is_enabled=0
tree_is_initialized=0
service_is_up=0
tree_is_current=0
list_frontend=0
tree_find_current=0
service_find_tree=0
ss_version=0

usage(){

    oblog -i "\
66-insys.sh [ -h ] [ -z ] <boolean|request> name

boolean operations:
A boolean operation return 0 for true and 1 for false

    tree-is-enabled: return true if name is enabled.
    service-is-enabled: return true if name is enabled.
    tree-is-initialized: return true if name is initialized.
    service-is-up: return true if name is up.
    tree-is-current: return true if name is current.


request operations:
A request operation return a string(None if nothing is found)

    list-frontend: list of available frontend file on the system.
    tree-find-current: return the name of the current tree or None.
    service-find-tree: return the tree's name of name.
    66-version: return the current version of 66."
}

die(){
    oblog -f "${@ }"
    exit 111
}

check_valid_name(){

    if [ "$1" = "tree" ]; then

        if ! 66-intree "$NAME" 1>/dev/null 2>&1; then
            die "unknown tree $NAME"
        fi

    elif [ "$1" = "service" ]; then

        if ! 66-inservice "$NAME" 1>/dev/null 2>&1; then
            die "unknown service $NAME"
        fi
    fi
}

parse_66_config(){

    if ! execl-toc -X -e ${INCLUDEDIR}; then
        die "this operation rely on ${INCLUDEDIR} -- please install it."
    fi

    c=0
    res=$(grep SS_SERVICE_ADMDIR ${INCLUDEDIR})
    for i in ${res}; do
        c=$((c + 1))
        if [ $c -gt 2 ]; then
            i=$(66-echo "$i" | tr -d "\"")
            ADMDIR=${i}
        fi
    done

    c=0
    res=$(grep SS_SERVICE_SYSDIR ${INCLUDEDIR})
    for i in ${res}; do
        c=$((c + 1))
        if [ $c -gt 2 ]; then
            i=$(66-echo "$i" | tr -d "\"")
            SYSDIR=${i}
        fi
    done

    c=0
    res=$(grep SS_SYSTEM_DIR ${INCLUDEDIR})
    for i in ${res}; do
        c=$((c + 1))
        if [ $c -gt 2 ]; then
            i=$(66-echo "$i" | tr -d "\"")
            SYSTEMDIR=${i}
        fi
    done

    if [ "$(id -u)" -gt 0 ]; then
        c=0
        res=$(grep SS_SERVICE_USERDIR ${INCLUDEDIR})
        for i in ${res}; do
            c=$((c + 1))
            if [ $c -gt 2 ]; then
                i=$(66-echo "$i" | tr -d "\"")
                USERDIR=$(homeof "$(whoami)")/${i}
            fi
        done
    fi

    c=0
    res=$(grep SS_VERSION ${INCLUDEDIR})
    for i in ${res}; do
        c=$((c + 1))
        if [ $c -gt 2 ]; then
            i=$(66-echo "$i" | tr -d "\"")
            SSVERSION=${i}
        fi
    done
}

for arg ; do
    case "$arg" in
    -h) usage ;;
    -z) export COLOR_ENABLED=1 ;;
    *) target=" ${target} $arg" ;;
    esac
done

for bool in ${target}; do
    case "${bool}" in

        "tree-is-enabled")
                if ! shift 2 1>/dev/null 2>&1 ;then
                    die "you must specify a tree name"
                fi

                tree_is_enabled=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "service-is-enabled")
                if ! shift 2 1>/dev/null 2>&1 ;then
                    die "you must specify a service name"
                fi
                service_is_enabled=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "tree-is-initialized")
                if ! shift 2 1>/dev/null 2>&1 ;then
                    die "you must specify a tree name"
                fi
                tree_is_initialized=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "service-is-up")
                if ! shift 2 1>/dev/null 2>&1 ;then
                    die "you must specify a service name"
                fi
                service_is_up=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "tree-is-current")
                if ! shift 2 1>/dev/null 2>&1 ;then
                    die "you must specify a tree name"
                fi
                tree_is_current=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "list-frontend")
                list_frontend=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "tree-find-current")
                tree_find_current=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "service-find-tree")
                if ! shift 2 1>/dev/null 2>&1 ;then
                    die "you must specify a service name"
                fi
                service_find_tree=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        "66-version")
                ss_version=1
                NAME="${target# *${bool}\ }" ;
                break ;;

        *) usage ; exit 110 ;;
    esac
done

if [ "$tree_is_enabled" -eq 1 ]; then

    check_valid_name "tree"

    res=$(66-intree -no enabled "$NAME")
    if [ "$res" = "yes" ]; then
        exit 0
    else
        exit 1
    fi

elif [ "$service_is_enabled" -eq 1 ]; then

    if 66-inservice "$NAME" 1>/dev/null 2>&1; then

        res=$(66-inservice -no status "$NAME")
        res=${res%%,*}

        if [ "$res" = "enabled" ]; then
            exit 0
        else
            exit 1
        fi
    else
        exit 1
    fi

elif [ "$tree_is_initialized" -eq 1 ]; then

    check_valid_name "tree"

    res=$(66-intree -no init "$NAME")

    if [ "$res" = yes ]; then
        exit 0
    else
        exit 1
    fi

elif [ "$service_is_up" -eq 1 ]; then

    check_valid_name "service"

    res=$(66-inservice -no status "$NAME")
    res=${res# *,}
    res=${res%%(*}
    res=${res# *\ }
    res=${res%\ *}

    if [ "$res" = "up" ]; then
        exit 0
    else
        exit 1
    fi

elif [ "$tree_is_current" -eq 1 ]; then

    check_valid_name "tree"

    res=$(66-intree -no current "$NAME")

    if [ "$res" = yes ]; then
        exit 0
    else
        exit 1
    fi

elif [ "$list_frontend" -eq 1 ]; then

    parse_66_config

    find "$ADMDIR" -maxdepth 1 || die "unable to read $ADMDIR"

    find "$SYSDIR" -maxdepth 1 || die "unable to read $SYSDIR"

    if [ "$(id -u)" -gt 0 ]; then
        find "$USERDIR" -maxdepth 1 || die "unable to read $USERDIR"
    fi

    exit 0

elif [ "$tree_find_current" -eq 1 ]; then

    parse_66_config

    dir=""

    if [ "$(whoami)" = "root" ]; then
        dir="$SYSTEMDIR/system"
    else
        dir="$(homeof "$(whoami)")/.66/system"
    fi

    res=$(ls -1 "$dir")

    for i in ${res};do
        if [ "$i" = "backup" ] || [ "$i" = "state" ]; then
            continue
        else
            r=$(66-intree -no current "$i")
            if [ "$r" = "yes" ]; then
                66-echo "$i"
                exit 0
            fi
        fi
    done

    66-echo "None"

    exit 0

elif [ "$service_find_tree" -eq 1 ]; then

    check_valid_name "service"

    res=$(66-inservice -no intree "$NAME")

    66-echo "$res"

    exit 0

elif [ "$ss_version" -eq 1 ]; then

    parse_66_config

    66-echo "$SSVERSION"

    exit 0
fi

This script do not modify anything on your system. It only collects information