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* denisenkom/go-mssqldb untagged -> v0.9.0 * github.com/editorconfig/editorconfig-core-go v2.3.7 -> v2.3.8 * github.com/go-testfixtures/testfixtures v3.4.0 -> v3.4.1 * github.com/mholt/archiver v3.3.2 -> v3.5.0 * github.com/olivere/elastic v7.0.20 -> v7.0.21 * github.com/urfave/cli v1.22.4 -> v1.22.5 * github.com/xanzy/go-gitlab v0.38.1 -> v0.39.0 * github.com/yuin/goldmark-meta untagged -> v1.0.0 * github.com/ethantkoenig/rupture 0a76f03a811a -> c3b3b810dc77 * github.com/jaytaylor/html2text 8fb95d837f7d -> 3577fbdbcff7 * github.com/kballard/go-shellquote cd60e84ee657 -> 95032a82bc51 * github.com/msteinert/pam 02ccfbfaf0cc -> 913b8f8cdf8b * github.com/unknwon/paginater 7748a72e0141 -> 042474bd0eae * CI.restart() Co-authored-by: techknowlogick <techknowlogick@gitea.io>
185 lines
4.2 KiB
Go
Vendored
185 lines
4.2 KiB
Go
Vendored
package cli
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import (
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"flag"
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"fmt"
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"strings"
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)
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// StringSlice is an opaque type for []string to satisfy flag.Value and flag.Getter
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type StringSlice []string
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// Set appends the string value to the list of values
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func (f *StringSlice) Set(value string) error {
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*f = append(*f, value)
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return nil
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}
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// String returns a readable representation of this value (for usage defaults)
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func (f *StringSlice) String() string {
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return strings.Join(*f, ",")
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}
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// Value returns the slice of strings set by this flag
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func (f *StringSlice) Value() []string {
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return *f
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}
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// Get returns the slice of strings set by this flag
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func (f *StringSlice) Get() interface{} {
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return *f
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}
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// StringSliceFlag is a flag with type *StringSlice
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type StringSliceFlag struct {
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Name string
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Usage string
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EnvVar string
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FilePath string
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Required bool
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Hidden bool
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TakesFile bool
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Value *StringSlice
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}
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// String returns a readable representation of this value
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// (for usage defaults)
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func (f StringSliceFlag) String() string {
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return FlagStringer(f)
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}
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// GetName returns the name of the flag
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func (f StringSliceFlag) GetName() string {
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return f.Name
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}
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// IsRequired returns whether or not the flag is required
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func (f StringSliceFlag) IsRequired() bool {
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return f.Required
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}
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// TakesValue returns true of the flag takes a value, otherwise false
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func (f StringSliceFlag) TakesValue() bool {
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return true
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}
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// GetUsage returns the usage string for the flag
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func (f StringSliceFlag) GetUsage() string {
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return f.Usage
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}
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// GetValue returns the flags value as string representation and an empty
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// string if the flag takes no value at all.
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func (f StringSliceFlag) GetValue() string {
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if f.Value != nil {
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return f.Value.String()
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}
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return ""
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}
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// Apply populates the flag given the flag set and environment
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// Ignores errors
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func (f StringSliceFlag) Apply(set *flag.FlagSet) {
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_ = f.ApplyWithError(set)
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}
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// ApplyWithError populates the flag given the flag set and environment
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func (f StringSliceFlag) ApplyWithError(set *flag.FlagSet) error {
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if envVal, ok := flagFromFileEnv(f.FilePath, f.EnvVar); ok {
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newVal := &StringSlice{}
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for _, s := range strings.Split(envVal, ",") {
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s = strings.TrimSpace(s)
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if err := newVal.Set(s); err != nil {
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return fmt.Errorf("could not parse %s as string value for flag %s: %s", envVal, f.Name, err)
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}
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}
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if f.Value == nil {
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f.Value = newVal
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} else {
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*f.Value = *newVal
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}
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}
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eachName(f.Name, func(name string) {
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if f.Value == nil {
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f.Value = &StringSlice{}
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}
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set.Var(f.Value, name, f.Usage)
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})
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return nil
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}
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// StringSlice looks up the value of a local StringSliceFlag, returns
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// nil if not found
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func (c *Context) StringSlice(name string) []string {
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return lookupStringSlice(name, c.flagSet)
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}
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// GlobalStringSlice looks up the value of a global StringSliceFlag, returns
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// nil if not found
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func (c *Context) GlobalStringSlice(name string) []string {
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if fs := lookupGlobalFlagSet(name, c); fs != nil {
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return lookupStringSlice(name, fs)
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}
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return nil
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}
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func lookupStringSlice(name string, set *flag.FlagSet) []string {
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f := set.Lookup(name)
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if f != nil {
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value, ok := f.Value.(*StringSlice)
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if !ok {
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return nil
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}
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// extract the slice from asserted value
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slice := value.Value()
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// extract default value from the flag
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var defaultVal []string
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for _, v := range strings.Split(f.DefValue, ",") {
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defaultVal = append(defaultVal, v)
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}
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// if the current value is not equal to the default value
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// remove the default values from the flag
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if !isStringSliceEqual(slice, defaultVal) {
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for _, v := range defaultVal {
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slice = removeFromStringSlice(slice, v)
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}
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}
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return slice
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}
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return nil
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}
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func removeFromStringSlice(slice []string, val string) []string {
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for i, v := range slice {
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if v == val {
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ret := append([]string{}, slice[:i]...)
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ret = append(ret, slice[i+1:]...)
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return ret
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}
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}
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return slice
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}
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func isStringSliceEqual(newValue, defaultValue []string) bool {
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// If one is nil, the other must also be nil.
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if (newValue == nil) != (defaultValue == nil) {
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return false
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}
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if len(newValue) != len(defaultValue) {
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return false
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}
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for i, v := range newValue {
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if v != defaultValue[i] {
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return false
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}
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}
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return true
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}
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