Reproduction steps for podman-27130

#podman-27130-reproduce-arg-parse

.

README.md

Initialize a Go module, install a dependency

go mod init podman-27130-reproduce-arg-parse
go get github.com/spf13/pflag

main.go

package main

import (
	"fmt"

	"github.com/spf13/pflag"
)

func main() {
	// 1. Declare the map to store the flags
	var config map[string]string
	// var config []string

	// 2. Define the flag
	// Arguments: &targetVar, flagName, defaultValue, description
	pflag.StringToStringVar(&config, "driver-opts", nil, "Set config values (e.g. --driver-opts key=value)")
	// If you want to experiment with other types
	// pflag.StringArrayVar(&config, "driver-opts", nil, "Set config values (e.g. --driver-opts key=value)")
	// pflag.StringSliceVar(&config, "driver-opts", nil, "Set config values (e.g. --driver-opts key=value)")

	// 3. Parse the flags
	pflag.Parse()

	// 4. Print results
	fmt.Println("Configuration:")
	for k, v := range config {
		fmt.Printf("  %s: %s\n", k, v)
		// fmt.Printf("  %d: %s\n", k, v)
	}
}

script.sh

##########################
# Things that don't work #
##########################

go run main.go --driver-opts=list=/bin/true --driver-opts=lookup="echo \"foo bar\"" --driver-opts=store=/bin/true --driver-opts=delete=/bin/true
# Configuration:
#   list: /bin/true
#   lookup: echo "foo bar
#   store: /bin/true
#   delete: /bin/true

go run main.go --driver-opts=list=/bin/true --driver-opts="lookup=echo \"foo bar\"" --driver-opts=store=/bin/true --driver-opts=delete=/bin/true
# Configuration:
#   list: /bin/true
#   lookup: echo "banana
#   store: /bin/true
#   delete: /bin/true

go run main.go --driver-opts=list=/bin/true --driver-opts='lookup=echo "foo bar"' --driver-opts=store=/bin/true --driver-opts=delete=/bin/true
# Configuration:
#   list: /bin/true
#   lookup: echo "foo bar
#   store: /bin/true
#   delete: /bin/true

#############################
# Things that actually work #
#############################

# 1. Adding an extra space at the end
go run main.go --driver-opts=list=/bin/true --driver-opts="lookup=echo \"foo bar\" " --driver-opts=store=/bin/true --driver-opts=delete=/bin/true
# Configuration:
#   list: /bin/true
#   lookup: echo "foo bar" 
#   store: /bin/true
#   delete: /bin/true
# Note: There is an extra space at the end of the lookup line

# 2. Putting every argument in one set of single quotes, then use CSV double quote rules
go run main.go --driver-opts='list=/bin/true,"lookup=echo ""foo bar""",store=/bin/true,delete=/bin/true'
# Configuration:
#   list: /bin/true
#   lookup: echo "foo bar"
#   store: /bin/true
#   delete: /bin/true