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Minimize struct copying

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by using pointer func receivers and slices of struct pointers where possible.
This commit is contained in:
Dan Buch
2016-05-22 15:20:52 -04:00
parent b35c8a92d2
commit cd10b49473
15 changed files with 452 additions and 372 deletions
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48
altsrc/flag.go
View File

@@ -62,15 +62,15 @@ func InitInputSourceWithContext(flags []cli.Flag, createInputSource func(context
}
}
// GenericFlag is the flag type that wraps cli.GenericFlag to allow
// GenericFlag is the flag type that wraps *cli.GenericFlag to allow
// for other values to be specified
type GenericFlag struct {
cli.GenericFlag
*cli.GenericFlag
set *flag.FlagSet
}
// NewGenericFlag creates a new GenericFlag
func NewGenericFlag(flag cli.GenericFlag) *GenericFlag {
func NewGenericFlag(flag *cli.GenericFlag) *GenericFlag {
return &GenericFlag{GenericFlag: flag, set: nil}
}
@@ -100,15 +100,15 @@ func (f *GenericFlag) Apply(set *flag.FlagSet) {
f.GenericFlag.Apply(set)
}
// StringSliceFlag is the flag type that wraps cli.StringSliceFlag to allow
// StringSliceFlag is the flag type that wraps *cli.StringSliceFlag to allow
// for other values to be specified
type StringSliceFlag struct {
cli.StringSliceFlag
*cli.StringSliceFlag
set *flag.FlagSet
}
// NewStringSliceFlag creates a new StringSliceFlag
func NewStringSliceFlag(flag cli.StringSliceFlag) *StringSliceFlag {
func NewStringSliceFlag(flag *cli.StringSliceFlag) *StringSliceFlag {
return &StringSliceFlag{StringSliceFlag: flag, set: nil}
}
@@ -141,15 +141,15 @@ func (f *StringSliceFlag) Apply(set *flag.FlagSet) {
f.StringSliceFlag.Apply(set)
}
// IntSliceFlag is the flag type that wraps cli.IntSliceFlag to allow
// IntSliceFlag is the flag type that wraps *cli.IntSliceFlag to allow
// for other values to be specified
type IntSliceFlag struct {
cli.IntSliceFlag
*cli.IntSliceFlag
set *flag.FlagSet
}
// NewIntSliceFlag creates a new IntSliceFlag
func NewIntSliceFlag(flag cli.IntSliceFlag) *IntSliceFlag {
func NewIntSliceFlag(flag *cli.IntSliceFlag) *IntSliceFlag {
return &IntSliceFlag{IntSliceFlag: flag, set: nil}
}
@@ -182,15 +182,15 @@ func (f *IntSliceFlag) Apply(set *flag.FlagSet) {
f.IntSliceFlag.Apply(set)
}
// BoolFlag is the flag type that wraps cli.BoolFlag to allow
// BoolFlag is the flag type that wraps *cli.BoolFlag to allow
// for other values to be specified
type BoolFlag struct {
cli.BoolFlag
*cli.BoolFlag
set *flag.FlagSet
}
// NewBoolFlag creates a new BoolFlag
func NewBoolFlag(flag cli.BoolFlag) *BoolFlag {
func NewBoolFlag(flag *cli.BoolFlag) *BoolFlag {
return &BoolFlag{BoolFlag: flag, set: nil}
}
@@ -219,15 +219,15 @@ func (f *BoolFlag) Apply(set *flag.FlagSet) {
f.BoolFlag.Apply(set)
}
// StringFlag is the flag type that wraps cli.StringFlag to allow
// StringFlag is the flag type that wraps *cli.StringFlag to allow
// for other values to be specified
type StringFlag struct {
cli.StringFlag
*cli.StringFlag
set *flag.FlagSet
}
// NewStringFlag creates a new StringFlag
func NewStringFlag(flag cli.StringFlag) *StringFlag {
func NewStringFlag(flag *cli.StringFlag) *StringFlag {
return &StringFlag{StringFlag: flag, set: nil}
}
@@ -257,15 +257,15 @@ func (f *StringFlag) Apply(set *flag.FlagSet) {
f.StringFlag.Apply(set)
}
// IntFlag is the flag type that wraps cli.IntFlag to allow
// IntFlag is the flag type that wraps *cli.IntFlag to allow
// for other values to be specified
type IntFlag struct {
cli.IntFlag
*cli.IntFlag
set *flag.FlagSet
}
// NewIntFlag creates a new IntFlag
func NewIntFlag(flag cli.IntFlag) *IntFlag {
func NewIntFlag(flag *cli.IntFlag) *IntFlag {
return &IntFlag{IntFlag: flag, set: nil}
}
@@ -294,15 +294,15 @@ func (f *IntFlag) Apply(set *flag.FlagSet) {
f.IntFlag.Apply(set)
}
// DurationFlag is the flag type that wraps cli.DurationFlag to allow
// DurationFlag is the flag type that wraps *cli.DurationFlag to allow
// for other values to be specified
type DurationFlag struct {
cli.DurationFlag
*cli.DurationFlag
set *flag.FlagSet
}
// NewDurationFlag creates a new DurationFlag
func NewDurationFlag(flag cli.DurationFlag) *DurationFlag {
func NewDurationFlag(flag *cli.DurationFlag) *DurationFlag {
return &DurationFlag{DurationFlag: flag, set: nil}
}
@@ -332,15 +332,15 @@ func (f *DurationFlag) Apply(set *flag.FlagSet) {
f.DurationFlag.Apply(set)
}
// Float64Flag is the flag type that wraps cli.Float64Flag to allow
// Float64Flag is the flag type that wraps *cli.Float64Flag to allow
// for other values to be specified
type Float64Flag struct {
cli.Float64Flag
*cli.Float64Flag
set *flag.FlagSet
}
// NewFloat64Flag creates a new Float64Flag
func NewFloat64Flag(flag cli.Float64Flag) *Float64Flag {
func NewFloat64Flag(flag *cli.Float64Flag) *Float64Flag {
return &Float64Flag{Float64Flag: flag, set: nil}
}

48
altsrc/flag_test.go
View File

@@ -26,7 +26,7 @@ type testApplyInputSource struct {
func TestGenericApplyInputSourceValue(t *testing.T) {
v := &Parser{"abc", "def"}
c := runTest(t, testApplyInputSource{
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}}),
Flag: NewGenericFlag(&cli.GenericFlag{Name: "test", Value: &Parser{}}),
FlagName: "test",
MapValue: v,
})
@@ -36,7 +36,7 @@ func TestGenericApplyInputSourceValue(t *testing.T) {
func TestGenericApplyInputSourceMethodContextSet(t *testing.T) {
p := &Parser{"abc", "def"}
c := runTest(t, testApplyInputSource{
Flag: NewGenericFlag(cli.GenericFlag{Name: "test", Value: &Parser{}}),
Flag: NewGenericFlag(&cli.GenericFlag{Name: "test", Value: &Parser{}}),
FlagName: "test",
MapValue: &Parser{"efg", "hig"},
ContextValueString: p.String(),
@@ -46,7 +46,7 @@ func TestGenericApplyInputSourceMethodContextSet(t *testing.T) {
func TestGenericApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewGenericFlag(cli.GenericFlag{
Flag: NewGenericFlag(&cli.GenericFlag{
Name: "test",
Value: &Parser{},
EnvVars: []string{"TEST"},
@@ -61,7 +61,7 @@ func TestGenericApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestStringSliceApplyInputSourceValue(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test"}),
Flag: NewStringSliceFlag(&cli.StringSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []string{"hello", "world"},
})
@@ -70,7 +70,7 @@ func TestStringSliceApplyInputSourceValue(t *testing.T) {
func TestStringSliceApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test"}),
Flag: NewStringSliceFlag(&cli.StringSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []string{"hello", "world"},
ContextValueString: "ohno",
@@ -80,7 +80,7 @@ func TestStringSliceApplyInputSourceMethodContextSet(t *testing.T) {
func TestStringSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringSliceFlag(cli.StringSliceFlag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewStringSliceFlag(&cli.StringSliceFlag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: []string{"hello", "world"},
EnvVarName: "TEST",
@@ -91,7 +91,7 @@ func TestStringSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestIntSliceApplyInputSourceValue(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test"}),
Flag: NewIntSliceFlag(&cli.IntSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []int{1, 2},
})
@@ -100,7 +100,7 @@ func TestIntSliceApplyInputSourceValue(t *testing.T) {
func TestIntSliceApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test"}),
Flag: NewIntSliceFlag(&cli.IntSliceFlag{Name: "test"}),
FlagName: "test",
MapValue: []int{1, 2},
ContextValueString: "3",
@@ -110,7 +110,7 @@ func TestIntSliceApplyInputSourceMethodContextSet(t *testing.T) {
func TestIntSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntSliceFlag(cli.IntSliceFlag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewIntSliceFlag(&cli.IntSliceFlag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: []int{1, 2},
EnvVarName: "TEST",
@@ -121,7 +121,7 @@ func TestIntSliceApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestBoolApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolFlag(cli.BoolFlag{Name: "test"}),
Flag: NewBoolFlag(&cli.BoolFlag{Name: "test"}),
FlagName: "test",
MapValue: true,
})
@@ -130,7 +130,7 @@ func TestBoolApplyInputSourceMethodSet(t *testing.T) {
func TestBoolApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolFlag(cli.BoolFlag{Name: "test"}),
Flag: NewBoolFlag(&cli.BoolFlag{Name: "test"}),
FlagName: "test",
MapValue: false,
ContextValueString: "true",
@@ -140,7 +140,7 @@ func TestBoolApplyInputSourceMethodContextSet(t *testing.T) {
func TestBoolApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewBoolFlag(cli.BoolFlag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewBoolFlag(&cli.BoolFlag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: false,
EnvVarName: "TEST",
@@ -151,7 +151,7 @@ func TestBoolApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestStringApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringFlag(cli.StringFlag{Name: "test"}),
Flag: NewStringFlag(&cli.StringFlag{Name: "test"}),
FlagName: "test",
MapValue: "hello",
})
@@ -160,7 +160,7 @@ func TestStringApplyInputSourceMethodSet(t *testing.T) {
func TestStringApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringFlag(cli.StringFlag{Name: "test"}),
Flag: NewStringFlag(&cli.StringFlag{Name: "test"}),
FlagName: "test",
MapValue: "hello",
ContextValueString: "goodbye",
@@ -170,7 +170,7 @@ func TestStringApplyInputSourceMethodContextSet(t *testing.T) {
func TestStringApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewStringFlag(cli.StringFlag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewStringFlag(&cli.StringFlag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: "hello",
EnvVarName: "TEST",
@@ -181,7 +181,7 @@ func TestStringApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestIntApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntFlag(cli.IntFlag{Name: "test"}),
Flag: NewIntFlag(&cli.IntFlag{Name: "test"}),
FlagName: "test",
MapValue: 15,
})
@@ -190,7 +190,7 @@ func TestIntApplyInputSourceMethodSet(t *testing.T) {
func TestIntApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntFlag(cli.IntFlag{Name: "test"}),
Flag: NewIntFlag(&cli.IntFlag{Name: "test"}),
FlagName: "test",
MapValue: 15,
ContextValueString: "7",
@@ -200,7 +200,7 @@ func TestIntApplyInputSourceMethodContextSet(t *testing.T) {
func TestIntApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewIntFlag(cli.IntFlag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewIntFlag(&cli.IntFlag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: 15,
EnvVarName: "TEST",
@@ -211,7 +211,7 @@ func TestIntApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestDurationApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewDurationFlag(cli.DurationFlag{Name: "test"}),
Flag: NewDurationFlag(&cli.DurationFlag{Name: "test"}),
FlagName: "test",
MapValue: time.Duration(30 * time.Second),
})
@@ -220,7 +220,7 @@ func TestDurationApplyInputSourceMethodSet(t *testing.T) {
func TestDurationApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewDurationFlag(cli.DurationFlag{Name: "test"}),
Flag: NewDurationFlag(&cli.DurationFlag{Name: "test"}),
FlagName: "test",
MapValue: time.Duration(30 * time.Second),
ContextValueString: time.Duration(15 * time.Second).String(),
@@ -230,7 +230,7 @@ func TestDurationApplyInputSourceMethodContextSet(t *testing.T) {
func TestDurationApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewDurationFlag(cli.DurationFlag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewDurationFlag(&cli.DurationFlag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: time.Duration(30 * time.Second),
EnvVarName: "TEST",
@@ -241,7 +241,7 @@ func TestDurationApplyInputSourceMethodEnvVarSet(t *testing.T) {
func TestFloat64ApplyInputSourceMethodSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test"}),
Flag: NewFloat64Flag(&cli.Float64Flag{Name: "test"}),
FlagName: "test",
MapValue: 1.3,
})
@@ -250,7 +250,7 @@ func TestFloat64ApplyInputSourceMethodSet(t *testing.T) {
func TestFloat64ApplyInputSourceMethodContextSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test"}),
Flag: NewFloat64Flag(&cli.Float64Flag{Name: "test"}),
FlagName: "test",
MapValue: 1.3,
ContextValueString: fmt.Sprintf("%v", 1.4),
@@ -260,7 +260,7 @@ func TestFloat64ApplyInputSourceMethodContextSet(t *testing.T) {
func TestFloat64ApplyInputSourceMethodEnvVarSet(t *testing.T) {
c := runTest(t, testApplyInputSource{
Flag: NewFloat64Flag(cli.Float64Flag{Name: "test", EnvVars: []string{"TEST"}}),
Flag: NewFloat64Flag(&cli.Float64Flag{Name: "test", EnvVars: []string{"TEST"}}),
FlagName: "test",
MapValue: 1.3,
EnvVarName: "TEST",

36
altsrc/yaml_command_test.go
View File

@@ -35,8 +35,8 @@ func TestCommandYamlFileTest(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test"}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "test"}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
@@ -68,8 +68,8 @@ func TestCommandYamlFileTestGlobalEnvVarWins(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test", EnvVars: []string{"THE_TEST"}}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "test", EnvVars: []string{"THE_TEST"}}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
@@ -103,8 +103,8 @@ func TestCommandYamlFileTestGlobalEnvVarWinsNested(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test", EnvVars: []string{"THE_TEST"}}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "top.test", EnvVars: []string{"THE_TEST"}}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
@@ -135,8 +135,8 @@ func TestCommandYamlFileTestSpecifiedFlagWins(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test"}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "test"}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
@@ -168,8 +168,8 @@ func TestCommandYamlFileTestSpecifiedFlagWinsNested(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test"}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "top.test"}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
@@ -200,8 +200,8 @@ func TestCommandYamlFileTestDefaultValueFileWins(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test", Value: 7}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "test", Value: 7}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
@@ -233,8 +233,8 @@ func TestCommandYamlFileTestDefaultValueFileWinsNested(t *testing.T) {
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "top.test", Value: 7}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
@@ -268,8 +268,8 @@ func TestCommandYamlFileFlagHasDefaultGlobalEnvYamlSetGlobalEnvWins(t *testing.T
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "test", Value: 7, EnvVars: []string{"THE_TEST"}}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "test", Value: 7, EnvVars: []string{"THE_TEST"}}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)
@@ -303,8 +303,8 @@ func TestCommandYamlFileFlagHasDefaultGlobalEnvYamlSetGlobalEnvWinsNested(t *tes
return nil
},
Flags: []cli.Flag{
NewIntFlag(cli.IntFlag{Name: "top.test", Value: 7, EnvVars: []string{"THE_TEST"}}),
cli.StringFlag{Name: "load"}},
NewIntFlag(&cli.IntFlag{Name: "top.test", Value: 7, EnvVars: []string{"THE_TEST"}}),
&cli.StringFlag{Name: "load"}},
}
command.Before = InitInputSourceWithContext(command.Flags, NewYamlSourceFromFlagFunc("load"))
err := command.Run(c)