### Cobra Generator Go File Header

Source: https://github.com/spf13/cobra-cli/blob/main/README.md

Provides an example of a Go file header generated from the custom license configuration.

```go
/*
Copyright © 2020 Steve Francia <spf@spf13.com>
This file is part of CLI application foo.
*/
```

--------------------------------

### Initialize New Cobra Application (Bash)

Source: https://context7.com/spf13/cobra-cli/llms.txt

This command scaffolds a new Cobra CLI application structure, generating files like main.go, cmd/root.go, and LICENSE. It requires a pre-initialized Go module and supports flags for author, license (e.g., MIT, Apache), Viper integration, and subdirectory placement. Outputs include boilerplate code ready for building and running; limitations include manual Go module setup and potential overrides via config files.

```bash
# First, create a new Go module
mkdir myapp
cd myapp
go mod init github.com/username/myapp

# Initialize a basic Cobra application
cobra-cli init

# Initialize with author information
cobra-cli init --author "John Doe john@example.com"

# Initialize with a specific license
cobra-cli init --license apache

# Initialize with Viper support for configuration management
cobra-cli init --viper --author "Jane Smith jane@example.com" --license MIT

# Initialize in a specific subdirectory
cobra-cli init mysubdir

# Run the generated application
go run main.go
# Output: Brief help text and available commands

# Generated file structure:
# myapp/
#   ├── main.go
#   ├── cmd/
#   │   └── root.go
#   └── LICENSE
```

--------------------------------

### Cobra Generator Custom License Configuration

Source: https://github.com/spf13/cobra-cli/blob/main/README.md

Shows an example of a custom license configuration in YAML. It includes a header and text body using interpolation for dynamic content generation.

```yaml
author: Steve Francia <spf@spf13.com>
year: 2020
license:
  header: This file is part of CLI application foo.
  text: |
    {{ .copyright }}

    This is my license. There are many like it, but this one is mine.
    My license is my best friend. It is my life. I must master it as I must
    master my life.
```

--------------------------------

### Create Command Files Using cobra-cli

Source: https://context7.com/spf13/cobra-cli/llms.txt

Demonstrates how to programmatically create new command files in the cmd directory using cobra-cli's Command.Create() method. Shows configuration of project metadata including absolute path, copyright, and Apache-2.0 license. Includes error handling and output formatting for the generated file location.

```go
package main

import (
    "fmt"
    "github.com/spf13/cobra-cli/cmd"
)

func main() {
    // Example: Programmatically add a command
    command := &cmd.Command{
        CmdName:   "server",
        CmdParent: "rootCmd",
        Project: &cmd.Project{
            AbsolutePath: "/path/to/myapp",
            Copyright:    "Copyright © 2024 Developer",
            Legal: cmd.License{
                Name:   "Apache-2.0",
                Header: "Licensed under Apache License 2.0",
            },
        },
    }

    if err := command.Create(); err != nil {
        fmt.Printf("Error creating command: %v\n", err)
        return
    }

    fmt.Printf("%s command created at %s/cmd/%s.go\n",
        command.CmdName, command.AbsolutePath, command.CmdName)
    // Output: server command created at /path/to/myapp/cmd/server.go

    // Generated file contains:
    // - Package declaration
    // - Import statements
    // - Command variable (serverCmd)
    // - init() function that registers with parent
}
```

--------------------------------

### Programmatically Create Cobra Project (Go)

Source: https://context7.com/spf13/cobra-cli/llms.txt

This API function generates a Cobra project structure including main.go, cmd/root.go, and LICENSE using the cmd.Project type. It requires importing cobra-cli/cmd and setting properties like path, package name, and license details. Outputs files at the specified absolute path; limitations: Manual error handling needed, and it assumes a valid Go environment.

```go
package main

import (
    "fmt"
    "github.com/spf13/cobra-cli/cmd"
)

func main() {
    // Example: Programmatically create a project structure
    project := &cmd.Project{
        AbsolutePath: "/path/to/myapp",
        PkgName:      "github.com/username/myapp",
        AppName:      "myapp",
        Copyright:    "Copyright © 2024 John Doe",
        Viper:        true,
        Legal: cmd.License{
            Name:   "MIT",
            Header: "Licensed under MIT",
            Text:   "MIT License text...",
        },
    }

    if err := project.Create(); err != nil {
        fmt.Printf("Error creating project: %v\n", err)
        return
    }

    fmt.Println("Project created successfully at", project.AbsolutePath)
    // Output: Project created successfully at /path/to/myapp
    // Files created:
    //   - /path/to/myapp/main.go
    //   - /path/to/myapp/cmd/root.go
    //   - /path/to/myapp/LICENSE
}
```

--------------------------------

### Cobra Generator YAML Configuration

Source: https://github.com/spf13/cobra-cli/blob/main/README.md

Demonstrates a YAML configuration file for the Cobra generator. This file helps reduce repeated input in flags and includes author, license, and Viper usage settings.

```yaml
author: Steve Francia <spf@spf13.com>
license: MIT
useViper: true
```

--------------------------------

### Manage License Templates in cobra-cli

Source: https://context7.com/spf13/cobra-cli/llms.txt

Shows how to work with built-in and custom license templates using the cobra-cli library and Viper configuration. Demonstrates retrieving licenses by name/alias, iterating through available licenses, and configuring custom license headers and text with templating support for dynamic content like copyright information.

```go
package main

import (
    "fmt"
    "github.com/spf13/cobra-cli/cmd"
    "github.com/spf13/viper"
)

func main() {
    // Example: Working with licenses programmatically

    // Set up Viper configuration
    viper.Set("author", "Jane Developer <jane@dev.com>")
    viper.Set("year", "2024")

    // Get a built-in license
    mitLicense := cmd.Licenses["mit"]
    fmt.Printf("License: %s\n", mitLicense.Name)
    // Output: License: MIT

    // Find license by name or alias
    license := cmd.Licenses["apache2"]
    if license.Name != "" {
        fmt.Printf("Found: %s\n", license.Name)
        // Output: Found: Apache 2.0
    }

    // Available built-in licenses:
    licenses := []string{"mit", "apache2", "gpl2", "gpl3",
                         "lgpl", "agpl", "bsd2", "bsd3", "none"}
    for _, name := range licenses {
        if lic, exists := cmd.Licenses[name]; exists {
            fmt.Printf("- %s: %v matches\n",
                lic.Name, len(lic.PossibleMatches))
        }
    }
    // Output:
    // - MIT: 2 matches
    // - Apache 2.0: 3 matches
    // - GPL 2.0: 2 matches
    // ...

    // Custom license configuration
    viper.Set("license.header", "Proprietary Software")
    viper.Set("license.text", "All rights reserved.\n{{ .copyright }}")

    customLicense := cmd.License{
        Header: viper.GetString("license.header"),
        Text:   viper.GetString("license.text"),
    }
    fmt.Printf("Custom license header: %s\n", customLicense.Header)
    // Output: Custom license header: Proprietary Software
}
```

--------------------------------

### Configure Cobra CLI with YAML (Bash and YAML)

Source: https://context7.com/spf13/cobra-cli/llms.txt

This sets up a YAML configuration file for Cobra CLI defaults like author, license, and Viper usage, avoiding repeated flags. The bash command creates ~/.cobra.yaml; YAML defines settings including custom license templates. Outputs persistent config for init/add; limitations: Global file affects all projects unless overridden by flags or local paths.

```bash
# Create configuration file at ~/.cobra.yaml
cat > ~/.cobra.yaml << 'EOF'
author: Steve Francia <spf@spf13.com>
license: MIT
useViper: true
EOF

# Now init and add commands use these defaults automatically
cd newproject
go mod init github.com/username/newproject
cobra-cli init
# Automatically uses author, license, and viper settings from ~/.cobra.yaml

# Custom license configuration with template
cat > ~/.cobra.yaml << 'EOF'
author: Company Name <legal@company.com>
year: 2024
license:
  header: This file is part of CLI application foo.
  text: |
    {{ .copyright }}

    Custom license text here.
    All rights reserved.
EOF

# Override config file defaults with flags
cobra-cli init --license apache --config /path/to/custom/cobra.yaml
```

```yaml
author: Steve Francia <spf@spf13.com>
license: MIT
useViper: true
```

```yaml
author: Company Name <legal@company.com>
year: 2024
license:
  header: This file is part of CLI application foo.
  text: |
    {{ .copyright }}

    Custom license text here.
    All rights reserved.
```

--------------------------------

### Add Commands to Existing Cobra Application (Bash)

Source: https://context7.com/spf13/cobra-cli/llms.txt

This adds new command files to an existing Cobra project, creating Go files in cmd/ and registering them with parent commands if specified. It works in the project root, supporting flags for license and author; outputs include new .go files with command stubs. Limitations: Assumes an existing init'ed project; subcommands require parent command names.

```bash
# Navigate to your application directory
cd myapp

# Add a top-level command
cobra-cli add serve
# Creates: cmd/serve.go with serveCmd

# Add another top-level command
cobra-cli add config

# Add a subcommand with a parent
cobra-cli add create -p 'configCmd'
# Creates: cmd/create.go registered under configCmd

# Add command with license and author
cobra-cli add deploy --license apache --author "DevOps Team ops@example.com"

# Test the new commands
go run main.go serve
# Output: "serve called"

go run main.go config create
# Output: "create called"

go run main.go help serve
# Output: Detailed help for the serve command

# Resulting structure:
# myapp/
#   ├── main.go
#   ├── cmd/
#   │   ├── root.go
#   │   ├── serve.go
#   │   ├── config.go
#   │   ├── create.go
#   │   └── deploy.go
```

--------------------------------

### Validate and Transform Command Names in Go

Source: https://context7.com/spf13/cobra-cli/llms.txt

Implements a function to convert dash-case and snake_case command names to valid Go camelCase identifiers. Processes special characters by converting following letters to uppercase and handles edge cases like consecutive separators or trailing separators. Includes test cases demonstrating various input-output transformations.

```go
package main

import (
    "fmt"
)

// validateCmdName converts command names to valid Go identifiers
func validateCmdName(source string) string {
    // Implementation from cmd/add.go
    i := 0
    l := len(source)
    var output string

    for i < l {
        if source[i] == '-' || source[i] == '_' {
            if output == "" {
                output = source[:i]
            }
            if i == l-1 {
                break
            }
            if source[i+1] == '-' || source[i+1] == '_' {
                i++
                continue
            }
            output += string(source[i+1] - 32) // Convert to uppercase
            i += 2
            continue
        }
        if output != "" {
            output += string(source[i])
        }
        i++
    }

    if output == "" {
        return source
    }
    return output
}

func main() {
    // Example: Command name transformations
    examples := map[string]string{
        "add-user":      "addUser",
        "get_config":    "getConfig",
        "list-all-items": "listAllItems",
        "simple":        "simple",
        "API_server":    "APIServer",
        "test--double":  "testDouble",
        "end-":          "end",
    }

    for input, expected := range examples {
        result := validateCmdName(input)
        status := "✓"
        if result != expected {
            status = "✗"
        }
        fmt.Printf("%s %s -> %s (expected: %s)\n",
            status, input, result, expected)
    }
    // Output:
    // ✓ add-user -> addUser (expected: addUser)
    // ✓ get_config -> getConfig (expected: getConfig)
    // ✓ list-all-items -> listAllItems (expected: listAllItems)
    // ✓ simple -> simple (expected: simple)
    // ✓ API_server -> APIServer (expected: APIServer)
}
```

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