Sample code for creating JSON code for https://github.com/dlangille/SamDrucker

1 - the output

[dan@samdrucker:~/bin] $ ~/bin/samdrucker.sh 
{
   "name": "samdrucker.int.unixathome.org",
   "os": "FreeBSD",
   "version": "12.0-RELEASE-p10",
   "repo": "pkg+http://fedex.unixathome.org/packages/120amd64-default-master-list/",
   "packages": [
      "apache24-2.4.41",
      "apr-1.7.0.1.6.1",
      "bash-5.0.11",
      "bind-tools-9.14.7",
      "ca_root_nss-3.47",
      "curl-7.66.0",
      "cyrus-sasl-2.1.27",
      "db5-5.3.28_7",
      "expat-2.2.8",
      "gdbm-1.18.1_1",
      "gettext-runtime-0.20.1",
      "icu-65.1,1",
      "indexinfo-0.3.1",
      "jo-1.2",
      "joe-4.6,1",
      "json-c-0.13.1_1",
      "libargon2-20190702",
      "libedit-3.1.20190324,1",
      "libevent-2.1.11",
      "libffi-3.2.1_3",
      "libidn2-2.2.0",
      "liblockfile-1.16",
      "liblz4-1.9.2,1",
      "libnghttp2-1.39.2",
      "libunistring-0.9.10_1",
      "libxml2-2.9.9",
      "lockfile-progs-0.1.18",
      "logcheck-1.3.20",
      "mime-construct-1.11_2",
      "mod_php72-7.2.24",
      "mysql57-client-5.7.27",
      "nagios-plugins-2.2.1_8,1",
      "nginx-1.16.1_4,2",
      "nrpe3-3.2.1",
      "p5-IPC-Signal-1.00_1",
      "p5-MIME-Types-2.17",
      "p5-Proc-WaitStat-1.00_1",
      "pam_ssh_agent_auth-0.10.3_1",
      "pcre-8.43_2",
      "perl5-5.30.0",
      "php72-7.2.24",
      "php72-json-7.2.24",
      "php72-pgsql-7.2.24",
      "pkg-1.12.0",
      "postfix-3.4.7_1,1",
      "postgresql11-client-11.5",
      "protobuf-3.9.2,1",
      "py27-ply-3.11",
      "py27-setuptools-41.4.0",
      "python-2.7_3,2",
      "python2-2_3",
      "python27-2.7.17",
      "readline-8.0.0",
      "sudo-1.8.29",
      "xtail-2.1"
   ]
}

2 - samdrucker.sh

#!/bin/sh

# we want to construct JSON which looks like this:
# {
#   "name": "test.example.org",
#   "os": "FreeBSD",
#   "version": "11.3-RELEASE-p4",
#   "repo": "http://pkg.freebsd.org/FreeBSD:113:amd64/latest/",
#   "packages": [
#       "apr-1.6.5.1.6.1_1",
#       "bacula9-client-9.4.3",
#       "bash-5.0.7",
#       "rsync-3.1.3_1",
#       "serf-1.3.9_3",
#       "sqlite3-3.29.0_1"
#    ]
# }
#
# I am using the FreeBSD textproc/jo:
#
# $ jo -p name=`hostname` os=`uname` version=`uname -r` repo=`pkg -vv | grep url | cut -f2 -d \"`
# {
#    "name": "samdrucker.int.unixathome.org",
#    "os": "FreeBSD",
#    "version": "12.0-RELEASE-p10",
#    "repo": "pkg+http://fedex.unixathome.org/packages/120amd64-default-master-list/"
# }
#

# get list of packages on this host:

pkg_args=""
PKGS=`/usr/sbin/pkg info -q`
for pkg in $PKGS
do
  pkg_args="$pkg_args packages[]=$pkg"
done

#echo $pkg_args
# yeah, this repo stuff will break if you have multiple repos
/usr/local/bin/jo -p name=`hostname` os=`uname` version=`uname -r` repo=`pkg -vv | grep url | cut -f2 -d \"` $pkg_args