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interactivetemplatefuncs.go
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/
interactivetemplatefuncs.go
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package cmd
import (
"fmt"
"github.com/spf13/pflag"
"github.com/twpayne/chezmoi/v2/internal/chezmoi"
)
type interactiveTemplateFuncsConfig struct {
forcePromptOnce bool
promptBool map[string]string
promptChoice map[string]string
promptDefaults bool
promptInt map[string]int
promptString map[string]string
}
func (c *Config) addInteractiveTemplateFuncFlags(flags *pflag.FlagSet) {
flags.BoolVar(
&c.interactiveTemplateFuncs.forcePromptOnce,
"prompt",
c.interactiveTemplateFuncs.forcePromptOnce,
"Force prompt*Once template functions to prompt",
)
flags.BoolVar(
&c.interactiveTemplateFuncs.promptDefaults,
"promptDefaults",
c.interactiveTemplateFuncs.promptDefaults,
"Make prompt functions return default values",
)
flags.StringToStringVar(
&c.interactiveTemplateFuncs.promptBool,
"promptBool",
c.interactiveTemplateFuncs.promptBool,
"Populate promptBool",
)
flags.StringToStringVar(
&c.interactiveTemplateFuncs.promptChoice,
"promptChoice",
c.interactiveTemplateFuncs.promptChoice,
"Populate promptChoice",
)
flags.StringToIntVar(
&c.interactiveTemplateFuncs.promptInt,
"promptInt",
c.interactiveTemplateFuncs.promptInt,
"Populate promptInt",
)
flags.StringToStringVar(
&c.interactiveTemplateFuncs.promptString,
"promptString",
c.interactiveTemplateFuncs.promptString,
"Populate promptString",
)
}
func (c *Config) promptBoolInteractiveTemplateFunc(prompt string, args ...bool) bool {
if len(args) > 1 {
err := fmt.Errorf("want 1 or 2 arguments, got %d", len(args)+1)
panic(err)
}
if valueStr, ok := c.interactiveTemplateFuncs.promptBool[prompt]; ok {
value, err := chezmoi.ParseBool(valueStr)
if err != nil {
panic(err)
}
return value
}
value, err := c.promptBool(prompt, args...)
if err != nil {
panic(err)
}
return value
}
func (c *Config) promptBoolOnceInteractiveTemplateFunc(m map[string]any, path any, prompt string, args ...bool) bool {
if len(args) > 1 {
err := fmt.Errorf("want 3 or 4 arguments, got %d", len(args)+2)
panic(err)
}
nestedMap, lastKey, err := nestedMapAtPath(m, path)
if err != nil {
panic(err)
}
if !c.interactiveTemplateFuncs.forcePromptOnce {
if value, ok := nestedMap[lastKey]; ok {
switch value := value.(type) {
case bool:
return value
case string:
if boolValue, err := chezmoi.ParseBool(value); err == nil {
return boolValue
}
}
}
}
return c.promptBoolInteractiveTemplateFunc(prompt, args...)
}
func (c *Config) promptChoiceInteractiveTemplateFunc(prompt string, choices any, args ...string) string {
if len(args) > 1 {
err := fmt.Errorf("want 2 or 3 arguments, got %d", len(args)+2)
panic(err)
}
if valueStr, ok := c.interactiveTemplateFuncs.promptChoice[prompt]; ok {
return valueStr
}
choiceStrs, err := anyToStringSlice(choices)
if err != nil {
panic(err)
}
value, err := c.promptChoice(prompt, choiceStrs, args...)
if err != nil {
panic(err)
}
return value
}
func (c *Config) promptChoiceOnceInteractiveTemplateFunc(
m map[string]any,
path any,
prompt string,
choices any,
args ...string,
) string {
if len(args) > 1 {
err := fmt.Errorf("want 4 or 5 arguments, got %d", len(args)+4)
panic(err)
}
nestedMap, lastKey, err := nestedMapAtPath(m, path)
if err != nil {
panic(err)
}
if !c.interactiveTemplateFuncs.forcePromptOnce {
if value, ok := nestedMap[lastKey]; ok {
if valueStr, ok := value.(string); ok {
return valueStr
}
}
}
return c.promptChoiceInteractiveTemplateFunc(prompt, choices, args...)
}
func (c *Config) promptIntInteractiveTemplateFunc(prompt string, args ...int64) int64 {
if len(args) > 1 {
err := fmt.Errorf("want 1 or 2 arguments, got %d", len(args)+1)
panic(err)
}
if value, ok := c.interactiveTemplateFuncs.promptInt[prompt]; ok {
return int64(value)
}
value, err := c.promptInt(prompt, args...)
if err != nil {
panic(err)
}
return value
}
func (c *Config) promptIntOnceInteractiveTemplateFunc(m map[string]any, path any, prompt string, args ...int64) int64 {
if len(args) > 1 {
err := fmt.Errorf("want 2 or 3 arguments, got %d", len(args)+2)
panic(err)
}
nestedMap, lastKey, err := nestedMapAtPath(m, path)
if err != nil {
panic(err)
}
if !c.interactiveTemplateFuncs.forcePromptOnce {
if value, ok := nestedMap[lastKey]; ok {
if intValue, ok := value.(int64); ok {
return intValue
}
}
}
return c.promptIntInteractiveTemplateFunc(prompt, args...)
}
func (c *Config) promptStringInteractiveTemplateFunc(prompt string, args ...string) string {
if len(args) > 1 {
err := fmt.Errorf("want 1 or 2 arguments, got %d", len(args)+1)
panic(err)
}
if value, ok := c.interactiveTemplateFuncs.promptString[prompt]; ok {
return value
}
value, err := c.promptString(prompt, args...)
if err != nil {
panic(err)
}
return value
}
func (c *Config) promptStringOnceInteractiveTemplateFunc(m map[string]any, path any, prompt string, args ...string) string {
if len(args) > 1 {
err := fmt.Errorf("want 2 or 3 arguments, got %d", len(args)+2)
panic(err)
}
nestedMap, lastKey, err := nestedMapAtPath(m, path)
if err != nil {
panic(err)
}
if !c.interactiveTemplateFuncs.forcePromptOnce {
if value, ok := nestedMap[lastKey]; ok {
if stringValue, ok := value.(string); ok {
return stringValue
}
}
}
return c.promptStringInteractiveTemplateFunc(prompt, args...)
}
func anyToString(v any) (string, error) {
switch v := v.(type) {
case []byte:
return string(v), nil
case string:
return v, nil
default:
return "", fmt.Errorf("%v: not a string", v)
}
}
func anyToStringSlice(slice any) ([]string, error) {
switch slice := slice.(type) {
case []any:
result := make([]string, 0, len(slice))
for _, elem := range slice {
elemStr, err := anyToString(elem)
if err != nil {
return nil, err
}
result = append(result, elemStr)
}
return result, nil
case []string:
return slice, nil
default:
return nil, fmt.Errorf("%v: not a slice", slice)
}
}