Wildcard Arguments

Learn how to use wildcard arguments in Taskfile to pass multiple arguments to a command.

Normally you can pass arguments to a command in Taskfile, but sometimes you may want to pass multiple arguments at once. In such cases, you can use wildcard arguments.

The arguments are stored in .MATCH variable.

Taskfile.yaml

version: '3'
tasks:
  service:*:*:
    vars:
      SERVICE_NAME: "{{index .MATCH 0}}"
      REPLICAS: "{{index .MATCH 1}}"
    cmds:
      - 'echo Service Name: {{.SERVICE_NAME}}'
      - 'echo Replicas: {{.REPLICAS}}'
  service:*:
    vars:
      SERVICE_NAME: "{{index .MATCH 0}}"
    cmds:
      - 'echo Service Name: {{.SERVICE_NAME}}'

Demo and Output

ubuntu@touted-mite:~$ task service:nginx
task: [service:*] echo Service Name: nginx
Service Name: nginx
 
ubuntu@touted-mite:~$ task service:nginx:2
task: [service:*:*] echo Service Name: nginx
Service Name: nginx
task: [service:*:*] echo Replicas: 2
Replicas: 2

# You can alsop use whitespace in the arguments as long as you quote them
task "service:nginx hello-world"