Template parsing error dip dns ip

[tmimura39]

Describe the bug
The following error occurred in https://github.com/bibendi/dip/releases/tag/v7.0.0.

$ dip --version
7.0.0

$ dip dns ip
Template parsing error: template: :1: unexpected unclosed action in command
ERROR: Command 'docker inspect --format {{ .NetworkSettings.Networks.frontend.IPAddress }} dnsdock' executed with error.

Therefore, DIP_DNS is not set and requests between containers will not work.

To Reproduce
Steps to reproduce the behavior:

$ docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
a51e8bb8a1a5   bridge    bridge    local
ea175032c0fb   host      host      local
f3e5cf88a3a5   none      null      local

$ docker container ls -a
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES

$ dip dns up
e40f1db441cad1383d8a1b8b65e46d137c2578588c7407772f9de186839e36e6
9f30d003f9df0cf2af4b4ac3476c3677a23fffd131d6054f3ba2906cff096056

$ docker network ls
NETWORK ID     NAME       DRIVER    SCOPE
a51e8bb8a1a5   bridge     bridge    local
e40f1db441ca   frontend   bridge    local
ea175032c0fb   host       host      local
f3e5cf88a3a5   none       null      local

$ docker container ls -a
CONTAINER ID   IMAGE                           COMMAND                  CREATED          STATUS          PORTS                   NAMES
9f30d003f9df   aacebedo/dnsdock:latest-amd64   "dnsdock --domain=do…"   26 minutes ago   Up 26 minutes   0.0.0.0:56519->53/udp   dnsdock

$ docker network inspect frontend
[
    {
        "Name": "frontend",
        "Id": "e40f1db441cad1383d8a1b8b65e46d137c2578588c7407772f9de186839e36e6",
        "Created": "2021-04-10T02:38:13.757056728Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": {},
            "Config": [
                {
                    "Subnet": "172.20.0.0/16",
                    "Gateway": "172.20.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "9f30d003f9df0cf2af4b4ac3476c3677a23fffd131d6054f3ba2906cff096056": {
                "Name": "dnsdock",
                "EndpointID": "9da2d80f6e762104d27086eb31270f25ddedc710ac5f4c4cb3d500ed24216947",
                "MacAddress": "02:42:ac:14:00:02",
                "IPv4Address": "172.20.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]

$ dip --version
7.0.0

$ dip dns ip
Template parsing error: template: :1: unexpected unclosed action in command
ERROR: Command 'docker inspect --format {{ .NetworkSettings.Networks.frontend.IPAddress }} dnsdock' executed with error.

Expected behavior

No error in v6.1.0.

$ dip --version
6.1.0

$ dip dns ip
172.20.0.2

Context:

$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.15.7
BuildVersion:	19H524

$ docker -v
Docker version 20.10.5, build 55c4c88

$ dip --version
7.0.0

$ bash --version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin19)
Copyright (C) 2007 Free Software Foundation, Inc.

Additional context

I think this commit is the cause.
71baf4e

$ docker inspect --format {{ .NetworkSettings.Networks.frontend.IPAddress }} dnsdock
Template parsing error: template: :1: unexpected unclosed action in command

$ docker inspect --format '{{ .NetworkSettings.Networks.frontend.IPAddress }}' dnsdock
172.20.0.2

$ ruby -v
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin19]

$ ruby -e "::Kernel.system({}, 'docker', 'inspect', '--format', '{{ .NetworkSettings.Networks.frontend.IPAddress }}', 'dnsdock')"
172.20.0.2

$ ruby -e "::Kernel.system({}, 'docker inspect --format {{ .NetworkSettings.Networks.frontend.IPAddress }} dnsdock')"
Template parsing error: template: :1: unexpected unclosed action in command

[bibendi]

Hi,
Thank you for reporting the bug!
Fixed at 7.0.1