gencmd

README

GenCMD

This package is used to generate the base CRUD operations for a cli command for the DatumClient

Usage

The Taskfile includes two commands:

* cli:generate:                   generates a new cli cmd
* cli:generate:ro:                generates a new cli cmd with only the read cmds

To use the cli directly instead of the Taskfile:

go run cmd/cli/gencmd/generate/main.go generate --help
generate is the command to generate the stub files for a given cli cmd

Usage:
   generate [flags]

Flags:
  -d, --dir string    root directory location to generate the files (default "cmd")
  -h, --help          help for generate
  -i, --interactive   interactive prompt, set to false to disable (default true)
  -n, --name string   name of the command to generate
  -r, --read-only     only generate the read only commands, no create, update or delete commands

Generate All CRUD Operations

1. Run the generate command

   task cli:generate
   task: [cli:generate] go run gencmd/generate/main.go generate
   Name of the command (should be the singular version of the object): Contact
   ----> creating cli cmd for: Contact
   ----> executing template: create.tmpl
   ----> executing template: delete.tmpl
   ----> executing template: doc.tmpl
   ----> executing template: get.tmpl
   ----> executing template: root.tmpl
   ----> executing template: update.tmpl
   

2. This will create a set of cobra command files:

   ls -l cmd/cli/cmd/contact/
   total 48
   -rw-r--r--  1 sarahfunkhouser  staff  1261 Jun 27 13:30 create.go
   -rw-r--r--  1 sarahfunkhouser  staff  1086 Jun 27 13:30 delete.go
   -rw-r--r--  1 sarahfunkhouser  staff   102 Jun 27 13:30 doc.go
   -rw-r--r--  1 sarahfunkhouser  staff  1079 Jun 27 13:30 get.go
   -rw-r--r--  1 sarahfunkhouser  staff  2570 Jun 27 13:30 root.go
   -rw-r--r--  1 sarahfunkhouser  staff  1511 Jun 27 13:30 update.go
   

3. Add the new package to cmd/cli/main.go, in this case it would be:

   	_ "github.com/datumforge/datum/cmd/cli/cmd/contact"
   

4. Add flags for the Create and Update commands for input
5. Add validation to the createValidation() and updateValidation() functions for the required input
6. Add fields for the table output in root.go in tableOutput() function, by default it only includes ID.

   // tableOutput prints the plans in a table format
   func tableOutput(plans []datumclient.Contact) {
       writer := tables.NewTableWriter(cmd.OutOrStdout(), "ID", "Name", "Email", "PhoneNumber")
   
       for _, p := range plans {
           writer.AddRow(p.ID, p.Name, *p.Email, *p.PhoneNumber)
       }
   
       writer.Render()
   }
   

Generate Read-Only Operations

A common use-case for some of the resolvers is a read-only set of functions, particularly in our History schemas. To generate the cmds with only the get functionality use the --read-only flag:

1. Run the read-only generate command

   task cli:generate:ro
   

2. The resulting commands will just be a get command

   task: [cli:generate:ro] go run gencmd/generate/main.go generate --read-only
   Name of the command (should be the singular version of the object): ContactHistory
   ----> creating cli cmd for: ContactHistory
   ----> executing template: doc.tmpl
   ----> executing template: get.tmpl
   ----> executing template: root.tmpl
   

Documentation

Index

• func Generate(cmdName string, cmdDirName string, readOnly bool, force bool) error

Functions

func Generate

func Generate(cmdName string, cmdDirName string, readOnly bool, force bool) error

Generate generates the cli command files for the given command name