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App-14418: add more direction for module and model name #5629

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Merged
allisonschiang merged 5 commits into from
Jan 8, 2026
Merged

App-14418: add more direction for module and model name #5629

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cc04732
init
allisonschiang Dec 29, 2025
fcabb9c
Update module_generate.go
allisonschiang Dec 31, 2025
0b004eb
format
allisonschiang Jan 2, 2026
3b504bc
Update module_generate.go
allisonschiang Jan 6, 2026
aac68df
update model message
allisonschiang Jan 8, 2026
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20 changes: 18 additions & 2 deletions cli/module_generate.go
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Original file line number Diff line number Diff line change
Expand Up @@ -224,6 +224,15 @@ func (c *viamClient) generateModuleAction(cCtx *cli.Context, args generateModule
return nil
}

// returns model name based on chosen resource
func modelName(module *modulegen.ModuleInputs) string {
resourceName := strings.Fields(module.Resource)[0]
if resourceName == "generic" {
resourceName = resourceName + "_" + strings.Fields(module.Resource)[1]
}
return resourceName
}

// Prompt the user for information regarding the module they want to create
// returns the modulegen.ModuleInputs struct that contains the information the user entered.
func promptUser(module *modulegen.ModuleInputs) error {
Expand Down Expand Up @@ -283,7 +292,9 @@ func promptUser(module *modulegen.ModuleInputs) error {
Description("For more details about modular resources, view the documentation at \nhttps://docs.viam.com/registry/"),
huh.NewInput().
Title("Set a module name:").
Description("The module name can contain only alphanumeric characters, dashes, and underscores.").
Description("This can be the name of the piece of hardware, the challenge you are trying to solve,\n"+
"the name of the project, etc.\n"+
"The module name can contain only alphanumeric characters, dashes, and underscores.").
Value(&module.ModuleName).
Placeholder("my-module").
Suggestions([]string{"my-module"}).
Expand Down Expand Up @@ -333,7 +344,12 @@ func promptUser(module *modulegen.ModuleInputs) error {
Title("Set a model name of the resource:").
Description("This is the name of the new resource model that your module will provide.\n"+
"The model name can contain only alphanumeric characters, dashes, and underscores.").
Placeholder("my-model").
PlaceholderFunc(func() string {
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@allisonschiang allisonschiang Jan 2, 2026 •
edited
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the ticket calls to pre-populate text rather than have the background gray placeholder, but the huh package doesn't have the ValueFunc() implemented yet to dynamically change it

I tried:

  • change the module.ModelName value with a validate() function, but its set when the form is created and doesn't change
  • change the module.ModelName value by setting Value to a func() that returns resource type, but its set when the form is created and sets it to the first resource of arm
  • change the module.ModelName with PlaceholderFunc, but it only changes the Placeholder (can't put an extra function in it to edit ModelName)
  • create an Accessor function where you can create your own get() and set() function, but get() runs at form creation time so set to first resource of 'arm'

Didn't think it was worth it to split the form into two (ask resource name first and then prepopulate on another loaded form), switch packages, or make an open source contribution to huh package

return modelName(module)
}, &module.Resource).
SuggestionsFunc(func() []string {
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@allisonschiang allisonschiang Jan 6, 2026

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the only suggestion that makes sense to make is the model name we recommend

return []string{modelName(module)}
}, &module.Resource).
Value(&module.ModelName).
Validate(func(s string) error {
if s == "" {
Expand Down