summaryrefslogtreecommitdiff
path: root/vendor/github.com/spf13/pflag/count.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/spf13/pflag/count.go')
-rw-r--r--vendor/github.com/spf13/pflag/count.go94
1 files changed, 94 insertions, 0 deletions
diff --git a/vendor/github.com/spf13/pflag/count.go b/vendor/github.com/spf13/pflag/count.go
new file mode 100644
index 000000000..d22be41f2
--- /dev/null
+++ b/vendor/github.com/spf13/pflag/count.go
@@ -0,0 +1,94 @@
+package pflag
+
+import "strconv"
+
+// -- count Value
+type countValue int
+
+func newCountValue(val int, p *int) *countValue {
+ *p = val
+ return (*countValue)(p)
+}
+
+func (i *countValue) Set(s string) error {
+ v, err := strconv.ParseInt(s, 0, 64)
+ // -1 means that no specific value was passed, so increment
+ if v == -1 {
+ *i = countValue(*i + 1)
+ } else {
+ *i = countValue(v)
+ }
+ return err
+}
+
+func (i *countValue) Type() string {
+ return "count"
+}
+
+func (i *countValue) String() string { return strconv.Itoa(int(*i)) }
+
+func countConv(sval string) (interface{}, error) {
+ i, err := strconv.Atoi(sval)
+ if err != nil {
+ return nil, err
+ }
+ return i, nil
+}
+
+// GetCount return the int value of a flag with the given name
+func (f *FlagSet) GetCount(name string) (int, error) {
+ val, err := f.getFlagType(name, "count", countConv)
+ if err != nil {
+ return 0, err
+ }
+ return val.(int), nil
+}
+
+// CountVar defines a count flag with specified name, default value, and usage string.
+// The argument p points to an int variable in which to store the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func (f *FlagSet) CountVar(p *int, name string, usage string) {
+ f.CountVarP(p, name, "", usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func (f *FlagSet) CountVarP(p *int, name, shorthand string, usage string) {
+ flag := f.VarPF(newCountValue(0, p), name, shorthand, usage)
+ flag.NoOptDefVal = "-1"
+}
+
+// CountVar like CountVar only the flag is placed on the CommandLine instead of a given flag set
+func CountVar(p *int, name string, usage string) {
+ CommandLine.CountVar(p, name, usage)
+}
+
+// CountVarP is like CountVar only take a shorthand for the flag name.
+func CountVarP(p *int, name, shorthand string, usage string) {
+ CommandLine.CountVarP(p, name, shorthand, usage)
+}
+
+// Count defines a count flag with specified name, default value, and usage string.
+// The return value is the address of an int variable that stores the value of the flag.
+// A count flag will add 1 to its value evey time it is found on the command line
+func (f *FlagSet) Count(name string, usage string) *int {
+ p := new(int)
+ f.CountVarP(p, name, "", usage)
+ return p
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func (f *FlagSet) CountP(name, shorthand string, usage string) *int {
+ p := new(int)
+ f.CountVarP(p, name, shorthand, usage)
+ return p
+}
+
+// Count like Count only the flag is placed on the CommandLine isntead of a given flag set
+func Count(name string, usage string) *int {
+ return CommandLine.CountP(name, "", usage)
+}
+
+// CountP is like Count only takes a shorthand for the flag name.
+func CountP(name, shorthand string, usage string) *int {
+ return CommandLine.CountP(name, shorthand, usage)
+}