chore: vendor

vendor/github.com/docker/cli/opts/parse.go

@@ -0,0 +1,96 @@
+package opts
+
+import (
+	"errors"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/docker/docker/api/types/container"
+)
+
+// ReadKVStrings reads a file of line terminated key=value pairs, and overrides any keys
+// present in the file with additional pairs specified in the override parameter
+func ReadKVStrings(files []string, override []string) ([]string, error) {
+	return readKVStrings(files, override, nil)
+}
+
+// ReadKVEnvStrings reads a file of line terminated key=value pairs, and overrides any keys
+// present in the file with additional pairs specified in the override parameter.
+// If a key has no value, it will get the value from the environment.
+func ReadKVEnvStrings(files []string, override []string) ([]string, error) {
+	return readKVStrings(files, override, os.LookupEnv)
+}
+
+func readKVStrings(files []string, override []string, emptyFn func(string) (string, bool)) ([]string, error) {
+	var variables []string
+	for _, ef := range files {
+		parsedVars, err := parseKeyValueFile(ef, emptyFn)
+		if err != nil {
+			return nil, err
+		}
+		variables = append(variables, parsedVars...)
+	}
+	// parse the '-e' and '--env' after, to allow override
+	variables = append(variables, override...)
+
+	return variables, nil
+}
+
+// ConvertKVStringsToMap converts ["key=value"] to {"key":"value"}
+func ConvertKVStringsToMap(values []string) map[string]string {
+	result := make(map[string]string, len(values))
+	for _, value := range values {
+		k, v, _ := strings.Cut(value, "=")
+		result[k] = v
+	}
+
+	return result
+}
+
+// ConvertKVStringsToMapWithNil converts ["key=value"] to {"key":"value"}
+// but set unset keys to nil - meaning the ones with no "=" in them.
+// We use this in cases where we need to distinguish between
+//
+//	FOO=  and FOO
+//
+// where the latter case just means FOO was mentioned but not given a value
+func ConvertKVStringsToMapWithNil(values []string) map[string]*string {
+	result := make(map[string]*string, len(values))
+	for _, value := range values {
+		k, v, ok := strings.Cut(value, "=")
+		if !ok {
+			result[k] = nil
+		} else {
+			result[k] = &v
+		}
+	}
+
+	return result
+}
+
+// ParseRestartPolicy returns the parsed policy or an error indicating what is incorrect
+func ParseRestartPolicy(policy string) (container.RestartPolicy, error) {
+	if policy == "" {
+		// for backward-compatibility, we don't set the default ("no")
+		// policy here, because older versions of the engine may not
+		// support it.
+		return container.RestartPolicy{}, nil
+	}
+
+	p := container.RestartPolicy{}
+	k, v, ok := strings.Cut(policy, ":")
+	if ok && k == "" {
+		return container.RestartPolicy{}, errors.New("invalid restart policy format: no policy provided before colon")
+	}
+	if v != "" {
+		count, err := strconv.Atoi(v)
+		if err != nil {
+			return container.RestartPolicy{}, errors.New("invalid restart policy format: maximum retry count must be an integer")
+		}
+		p.MaximumRetryCount = count
+	}
+
+	p.Name = container.RestartPolicyMode(k)
+	return p, nil
+}