Generate flag types (again?)

Closes #1381
main
Dan Buch 2 years ago
parent cbd9bd97e8
commit ed0033984b
Signed by: meatballhat
GPG Key ID: A12F782281063434

@ -87,3 +87,8 @@ jobs:
- name: toc
run: go run internal/build/build.go toc docs/v2/manual.md
- name: diff check
run: |
git diff --exit-code
git diff --cached --exit-code

@ -0,0 +1,40 @@
# NOTE: this Makefile is meant to provide a simplified entry point for humans to
# run all of the critical steps to verify one's changes are harmonious in
# nature. Keeping target bodies to one line each and abstaining from make magic
# are very important so that maintainers and contributors can focus their
# attention on files that are primarily Go.
.PHONY: all
all: generate lint tag-test test check-bin tag-check-bin gfmrun toc
.PHONY: generate
generate:
go run internal/build/build.go generate
.PHONY: lint
lint:
go run internal/build/build.go vet
.PHONY: tag-test
tag-test:
go run internal/build/build.go -tags urfave_cli_no_docs test
.PHONY: test
test:
go run internal/build/build.go test
.PHONY: check-bin
check-bin:
go run internal/build/build.go check-binary-size
.PHONY: tag-check-bin
tag-check-bin:
go run internal/build/build.go -tags urfave_cli_no_docs check-binary-size
.PHONY: gfmrun
gfmrun:
go run internal/build/build.go gfmrun docs/v2/manual.md
.PHONY: toc
toc:
go run internal/build/build.go toc docs/v2/manual.md

@ -20,4 +20,4 @@
// }
package cli
//go:generate go run flag-gen/main.go flag-gen/assets_vfsdata.go
//go:generate go run internal/genflags/cmd/genflags/main.go

@ -1,18 +1,102 @@
## Contributing
Use @urfave/cli to ping the maintainers.
Feel free to put up a pull request to fix a bug or maybe add a feature. We will
give it a code review and make sure that it does not break backwards
compatibility. If collaborators agree that it is in line with
the vision of the project, we will work with you to get the code into
a mergeable state and merge it into the main branch.
If you have contributed something significant to the project, we will most
likely add you as a collaborator. As a collaborator you are given the ability
to merge others pull requests. It is very important that new code does not
break existing code, so be careful about what code you do choose to merge.
If you feel like you have contributed to the project but have not yet been added
as a collaborator, we probably forgot to add you :sweat_smile:. Please open an
issue!
Welcome to the `urfave/cli` contributor docs! This goal of this document is to help those
interested in joining the 200+ humans who have contributed to this project over the years.
> As a general guiding principle, the current maintainers may be notified via the
> @urfave/cli GitHub team.
All of the current maintainers are *volunteers* who live in various timezones with
different scheduling needs, so please understand that your contribution or question may
not get a response for many days.
### semantic versioning adherence
The `urfave/cli` project strives to strictly adhere to semantic versioning. The active
development branches and the milestones and import paths to which they correspond are:
#### `main` branch
<https://github.com/urfave/cli/tree/main>
The majority of active development and issue management is targeting the `main` branch,
which **MUST** *only* receive bug fixes and feature *additions*.
- :arrow_right: [`v2.x`](https://github.com/urfave/cli/milestone/16)
- :arrow_right: `github.com/urfave/cli/v2`
#### `v1` branch
<https://github.com/urfave/cli/tree/v1>
The `v1` branch **MUST** only receive bug fixes in the `v1.22.x` series. There is no
strict rule regarding bug fixes to the `v2.x` series being backported to the `v1.22.x`
series.
- :arrow_right: [`v1.22.x`](https://github.com/urfave/cli/milestone/11)
- :arrow_right: `github.com/urfave/cli`
#### `v3-dev-main` branch
<https://github.com/urfave/cli/tree/v3-dev-main>
The `v3-dev-branch` **MUST** receive all bug fixes and features added to the `main` branch
and **MAY** receive feature *removals* and other changes that are otherwise
*backward-incompatible* with the `v2.x` series.
- :arrow_right: [`v3.x`](https://github.com/urfave/cli/milestone/5)
- unreleased / unsupported
### development workflow
Most of the tooling around the development workflow strives for effective
[dogfooding](https://en.wikipedia.org/wiki/Eating_your_own_dog_food). There is a top-level
`Makefile` that is maintained strictly for the purpose of easing verification of one's
development environment and any changes one may have introduced:
```sh
make
```
Running the default `make` target (`all`) will ensure all of the critical steps are run to
verify one's changes are harmonious in nature. The same steps are also run during the
[continuous integration
phase](https://github.com/urfave/cli/blob/main/.github/workflows/cli.yml).
#### generated code
A significant portion of the project's source code is generated, with the goal being to
eliminate repetetive maintenance where other type-safe abstraction is impractical or
impossible with Go versions `< 1.18`. In a future where the eldest Go version supported is
`1.18.x`, there will likely be efforts to take advantage of
[generics](https://go.dev/doc/tutorial/generics).
The built-in `go generate` command is used to run the commands specified in
`//go:generate` directives. Each such command runs a file that also supports a command
line help system which may be consulted for further information, e.g.:
```sh
go run internal/genflags/cmd/genflags/main.go --help
```
### pull requests
Please feel free to open a pull request to fix a bug or add a feature. The @urfave/cli
team will review it as soon as possible, giving special attention to maintaining backward
compatibility. If the @urfave/cli team agrees that your contribution is in line with the
vision of the project, they will work with you to get the code into a mergeable state,
merged, and then released.
### granting of commit bit / admin mode
Those with a history of contributing to this project will likely be invited to join the
@urfave/cli team. As a member of the @urfave/cli team, you will have the ability to fully
administer pull requests, issues, and other repository bits.
If you feel that you should be a member of the @urfave/cli team but have not yet been
added, the most likely explanation is that this is an accidental oversight! :sweat_smile:.
Please open an issue!
<!--
vim:tw=90
-->

@ -0,0 +1,50 @@
# NOTE: this file is used by the tool defined in
# ./internal/genflags/cmd/genflags/main.go which uses the
# `genflags.Spec` type that maps to this file structure.
flag_types:
bool: {}
float64: {}
int64: {}
int: {}
time.Duration: {}
uint64: {}
uint: {}
string:
struct_fields:
- { name: TakesFile, type: bool }
Generic:
struct_fields:
- { name: TakesFile, type: bool }
Path:
struct_fields:
- { name: TakesFile, type: bool }
Float64Slice:
value_pointer: true
skip_interfaces:
- fmt.Stringer
Int64Slice:
value_pointer: true
skip_interfaces:
- fmt.Stringer
IntSlice:
value_pointer: true
skip_interfaces:
- fmt.Stringer
StringSlice:
value_pointer: true
skip_interfaces:
- fmt.Stringer
struct_fields:
- { name: TakesFile, type: bool }
Timestamp:
value_pointer: true
struct_fields:
- { name: Layout, type: string }
# TODO: enable UintSlice
# UintSlice: {}
# TODO: enable Uint64Slice once #1334 lands
# Uint64Slice: {}

@ -258,7 +258,7 @@ func withEnvHint(envVars []string, str string) string {
return str + envText
}
func flagNames(name string, aliases []string) []string {
func FlagNames(name string, aliases []string) []string {
var ret []string
for _, part := range append([]string{name}, aliases...) {

@ -6,37 +6,6 @@ import (
"strconv"
)
// BoolFlag is a flag with type bool
type BoolFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value bool
DefaultText string
Destination *bool
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *BoolFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *BoolFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *BoolFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *BoolFlag) IsRequired() bool {
return f.Required

@ -6,37 +6,6 @@ import (
"time"
)
// DurationFlag is a flag with type time.Duration (see https://golang.org/pkg/time/#ParseDuration)
type DurationFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value time.Duration
DefaultText string
Destination *time.Duration
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *DurationFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *DurationFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *DurationFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *DurationFlag) IsRequired() bool {
return f.Required

@ -6,37 +6,6 @@ import (
"strconv"
)
// Float64Flag is a flag with type float64
type Float64Flag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value float64
DefaultText string
Destination *float64
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Float64Flag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Float64Flag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Float64Flag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Float64Flag) IsRequired() bool {
return f.Required

@ -75,36 +75,12 @@ func (f *Float64Slice) Get() interface{} {
return *f
}
// Float64SliceFlag is a flag with type *Float64Slice
type Float64SliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value *Float64Slice
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Float64SliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Float64SliceFlag) String() string {
return withEnvHint(f.GetEnvVars(), stringifyFloat64SliceFlag(f))
}
// Names returns the names of the flag
func (f *Float64SliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Float64SliceFlag) IsRequired() bool {
return f.Required

@ -11,37 +11,6 @@ type Generic interface {
String() string
}
// GenericFlag is a flag with type Generic
type GenericFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value Generic
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *GenericFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *GenericFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *GenericFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *GenericFlag) IsRequired() bool {
return f.Required

@ -6,37 +6,6 @@ import (
"strconv"
)
// IntFlag is a flag with type int
type IntFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value int
DefaultText string
Destination *int
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *IntFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *IntFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *IntFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *IntFlag) IsRequired() bool {
return f.Required

@ -6,37 +6,6 @@ import (
"strconv"
)
// Int64Flag is a flag with type int64
type Int64Flag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value int64
DefaultText string
Destination *int64
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Int64Flag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Int64Flag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Int64Flag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Int64Flag) IsRequired() bool {
return f.Required

@ -76,36 +76,12 @@ func (i *Int64Slice) Get() interface{} {
return *i
}
// Int64SliceFlag is a flag with type *Int64Slice
type Int64SliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value *Int64Slice
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Int64SliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Int64SliceFlag) String() string {
return withEnvHint(f.GetEnvVars(), stringifyInt64SliceFlag(f))
}
// Names returns the names of the flag
func (f *Int64SliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Int64SliceFlag) IsRequired() bool {
return f.Required

@ -87,36 +87,12 @@ func (i *IntSlice) Get() interface{} {
return *i
}
// IntSliceFlag is a flag with type *IntSlice
type IntSliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value *IntSlice
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *IntSliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *IntSliceFlag) String() string {
return withEnvHint(f.GetEnvVars(), stringifyIntSliceFlag(f))
}
// Names returns the names of the flag
func (f *IntSliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *IntSliceFlag) IsRequired() bool {
return f.Required

@ -5,36 +5,7 @@ import (
"fmt"
)
type PathFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value string
DefaultText string
Destination *string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *PathFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *PathFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *PathFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
type Path = string
// IsRequired returns whether or not the flag is required
func (f *PathFlag) IsRequired() bool {

@ -5,38 +5,6 @@ import (
"fmt"
)
// StringFlag is a flag with type string
type StringFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value string
DefaultText string
Destination *string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *StringFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *StringFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *StringFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *StringFlag) IsRequired() bool {
return f.Required

@ -70,38 +70,12 @@ func (s *StringSlice) Get() interface{} {
return *s
}
// StringSliceFlag is a flag with type *StringSlice
type StringSliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value *StringSlice
DefaultText string
HasBeenSet bool
Destination *StringSlice
}
// IsSet returns whether or not the flag has been set through env or file
func (f *StringSliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *StringSliceFlag) String() string {
return withEnvHint(f.GetEnvVars(), stringifyStringSliceFlag(f))
}
// Names returns the names of the flag
func (f *StringSliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *StringSliceFlag) IsRequired() bool {
return f.Required

@ -58,38 +58,6 @@ func (t *Timestamp) Get() interface{} {
return *t
}
// TimestampFlag is a flag with type time
type TimestampFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Layout string
Value *Timestamp
DefaultText string
HasBeenSet bool
Destination *Timestamp
}
// IsSet returns whether or not the flag has been set through env or file
func (f *TimestampFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *TimestampFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *TimestampFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *TimestampFlag) IsRequired() bool {
return f.Required

@ -6,37 +6,6 @@ import (
"strconv"
)
// UintFlag is a flag with type uint
type UintFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value uint
DefaultText string
Destination *uint
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *UintFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *UintFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *UintFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *UintFlag) IsRequired() bool {
return f.Required

@ -6,37 +6,6 @@ import (
"strconv"
)
// Uint64Flag is a flag with type uint64
type Uint64Flag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value uint64
DefaultText string
Destination *uint64
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Uint64Flag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Uint64Flag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Uint64Flag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Uint64Flag) IsRequired() bool {
return f.Required

@ -5,6 +5,7 @@ go 1.18
require (
github.com/BurntSushi/toml v1.1.0
github.com/cpuguy83/go-md2man/v2 v2.0.1
golang.org/x/text v0.3.7
gopkg.in/yaml.v2 v2.4.0
)

@ -1,11 +1,11 @@
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/toml v1.1.0 h1:ksErzDEI1khOiGPgpwuI7x2ebx/uXQNw7xJpn9Eq1+I=
github.com/BurntSushi/toml v1.1.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
github.com/cpuguy83/go-md2man/v2 v2.0.1 h1:r/myEWzV9lfsM1tFLgDyu0atFtJ1fXn261LKYj/3DxU=
github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=

@ -6,7 +6,6 @@ import (
"bufio"
"bytes"
"fmt"
"io/ioutil"
"log"
"math"
"os"
@ -16,9 +15,18 @@ import (
"github.com/urfave/cli/v2"
)
var packages = []string{"cli", "altsrc"}
func main() {
top, err := func() (string, error) {
if v, err := sh("git", "rev-parse", "--show-toplevel"); err == nil {
return strings.TrimSpace(v), nil
}
return os.Getwd()
}()
if err != nil {
log.Fatal(err)
}
app := cli.NewApp()
app.Name = "builder"
@ -45,20 +53,41 @@ func main() {
Name: "check-binary-size",
Action: checkBinarySizeActionFunc,
},
{
Name: "generate",
Action: GenerateActionFunc,
},
}
app.Flags = []cli.Flag{
&cli.StringFlag{
Name: "tags",
Usage: "set build tags",
},
&cli.PathFlag{
Name: "top",
Value: top,
},
&cli.StringSliceFlag{
Name: "packages",
Value: cli.NewStringSlice("cli", "altsrc", "internal/build", "internal/genflags"),
},
}
err := app.Run(os.Args)
if err != nil {
if err := app.Run(os.Args); err != nil {
log.Fatal(err)
}
}
func sh(exe string, args ...string) (string, error) {
cmd := exec.Command(exe, args...)
cmd.Stdin = os.Stdin
cmd.Stderr = os.Stderr
fmt.Fprintf(os.Stderr, "# ---> %s\n", cmd)
outBytes, err := cmd.Output()
return string(outBytes), err
}
func runCmd(arg string, args ...string) error {
cmd := exec.Command(arg, args...)
@ -66,78 +95,63 @@ func runCmd(arg string, args ...string) error {
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
fmt.Fprintf(os.Stderr, "# ---> %s\n", cmd)
return cmd.Run()
}
func VetActionFunc(_ *cli.Context) error {
return runCmd("go", "vet")
func VetActionFunc(cCtx *cli.Context) error {
return runCmd("go", "vet", cCtx.Path("top")+"/...")
}
func TestActionFunc(c *cli.Context) error {
tags := c.String("tags")
for _, pkg := range packages {
var packageName string
for _, pkg := range c.StringSlice("packages") {
packageName := "github.com/urfave/cli/v2"
if pkg == "cli" {
packageName = "github.com/urfave/cli/v2"
} else {
if pkg != "cli" {
packageName = fmt.Sprintf("github.com/urfave/cli/v2/%s", pkg)
}
coverProfile := fmt.Sprintf("--coverprofile=%s.coverprofile", pkg)
err := runCmd("go", "test", "-tags", tags, "-v", coverProfile, packageName)
if err != nil {
if err := runCmd(
"go", "test",
"-tags", tags,
"-v",
"--coverprofile", pkg+".coverprofile",
"--covermode", "count",
"--cover", packageName,
packageName,
); err != nil {
return err
}
}
return testCleanup()
return testCleanup(c.StringSlice("packages"))
}
func testCleanup() error {
var out bytes.Buffer
func testCleanup(packages []string) error {
out := &bytes.Buffer{}
fmt.Fprintf(out, "mode: count\n")
for _, pkg := range packages {
file, err := os.Open(fmt.Sprintf("%s.coverprofile", pkg))
if err != nil {
return err
}
filename := pkg + ".coverprofile"
b, err := ioutil.ReadAll(file)
lineBytes, err := os.ReadFile(filename)
if err != nil {
return err
}
out.Write(b)
err = file.Close()
if err != nil {
return err
}
lines := strings.Split(string(lineBytes), "\n")
err = os.Remove(fmt.Sprintf("%s.coverprofile", pkg))
if err != nil {
fmt.Fprintf(out, strings.Join(lines[1:], "\n"))
if err := os.Remove(filename); err != nil {
return err
}
}
outFile, err := os.Create("coverage.txt")
if err != nil {
return err
}
_, err = out.WriteTo(outFile)
if err != nil {
return err
}
err = outFile.Close()
if err != nil {
return err
}
return nil
return os.WriteFile("coverage.txt", out.Bytes(), 0644)
}
func GfmrunActionFunc(c *cli.Context) error {
@ -179,17 +193,7 @@ func TocActionFunc(c *cli.Context) error {
filename = "README.md"
}
err := runCmd("markdown-toc", "-i", filename)
if err != nil {
return err
}
err = runCmd("git", "diff", "--exit-code")
if err != nil {
return err
}
return nil
return runCmd("markdown-toc", "-i", filename)
}
// checkBinarySizeActionFunc checks the size of an example binary to ensure that we are keeping size down
@ -201,7 +205,6 @@ func checkBinarySizeActionFunc(c *cli.Context) (err error) {
cliBuiltFilePath = "./internal/example-cli/built-example"
helloSourceFilePath = "./internal/example-hello-world/example-hello-world.go"
helloBuiltFilePath = "./internal/example-hello-world/built-example"
desiredMinBinarySize = 1.675
desiredMaxBinarySize = 2.2
badNewsEmoji = "๐Ÿšจ"
goodNewsEmoji = "โœจ"
@ -209,8 +212,14 @@ func checkBinarySizeActionFunc(c *cli.Context) (err error) {
mbStringFormatter = "%.1fMB"
)
desiredMinBinarySize := 1.675
tags := c.String("tags")
if strings.Contains(tags, "urfave_cli_no_docs") {
desiredMinBinarySize = 1.39
}
// get cli example size
cliSize, err := getSize(cliSourceFilePath, cliBuiltFilePath, tags)
if err != nil {
@ -280,6 +289,10 @@ func checkBinarySizeActionFunc(c *cli.Context) (err error) {
return nil
}
func GenerateActionFunc(cCtx *cli.Context) error {
return runCmd("go", "generate", cCtx.Path("top")+"/...")
}
func getSize(sourcePath string, builtPath string, tags string) (size int64, err error) {
// build example binary
err = runCmd("go", "build", "-tags", tags, "-o", builtPath, "-ldflags", "-s -w", sourcePath)

@ -0,0 +1,161 @@
package main
import (
"bytes"
"context"
_ "embed"
"log"
"os"
"os/exec"
"os/signal"
"path/filepath"
"strings"
"syscall"
"text/template"
"github.com/urfave/cli/v2"
"github.com/urfave/cli/v2/internal/genflags"
"gopkg.in/yaml.v2"
)
const (
defaultPackageName = "cli"
)
func sh(ctx context.Context, exe string, args ...string) (string, error) {
cmd := exec.CommandContext(ctx, exe, args...)
cmd.Stderr = os.Stderr
outBytes, err := cmd.Output()
return string(outBytes), err
}
func main() {
ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
defer stop()
top := "../../"
if v, err := sh(ctx, "git", "rev-parse", "--show-toplevel"); err == nil {
top = strings.TrimSpace(v)
}
app := &cli.App{
Flags: []cli.Flag{
&cli.PathFlag{
Name: "flag-spec-yaml",
Aliases: []string{"f"},
Value: filepath.Join(top, "flag-spec.yaml"),
},
&cli.PathFlag{
Name: "generated-output",
Aliases: []string{"o"},
Value: filepath.Join(top, "zz_generated.flags.go"),
},
&cli.PathFlag{
Name: "generated-test-output",
Aliases: []string{"t"},
Value: filepath.Join(top, "zz_generated.flags_test.go"),
},
&cli.StringFlag{
Name: "generated-package-name",
Aliases: []string{"p"},
Value: defaultPackageName,
},
&cli.StringFlag{
Name: "generated-test-package-name",
Aliases: []string{"T"},
Value: defaultPackageName + "_test",
},
&cli.StringFlag{
Name: "urfave-cli-namespace",
Aliases: []string{"n"},
Value: "",
},
&cli.StringFlag{
Name: "urfave-cli-test-namespace",
Aliases: []string{"N"},
Value: "cli.",
},
},
Action: runGenFlags,
}
if err := app.RunContext(ctx, os.Args); err != nil {
log.Fatal(err)
}
}
func runGenFlags(cCtx *cli.Context) error {
specBytes, err := os.ReadFile(cCtx.Path("flag-spec-yaml"))
if err != nil {
return err
}
spec := &genflags.Spec{}
if err := yaml.Unmarshal(specBytes, spec); err != nil {
return err
}
if cCtx.IsSet("generated-package-name") {
spec.PackageName = strings.TrimSpace(cCtx.String("generated-package-name"))
}
if strings.TrimSpace(spec.PackageName) == "" {
spec.PackageName = defaultPackageName
}
if cCtx.IsSet("generated-test-package-name") {
spec.TestPackageName = strings.TrimSpace(cCtx.String("generated-test-package-name"))
}
if strings.TrimSpace(spec.TestPackageName) == "" {
spec.TestPackageName = defaultPackageName + "_test"
}
if cCtx.IsSet("urfave-cli-namespace") {
spec.UrfaveCLINamespace = strings.TrimSpace(cCtx.String("urfave-cli-namespace"))
}
if cCtx.IsSet("urfave-cli-test-namespace") {
spec.UrfaveCLITestNamespace = strings.TrimSpace(cCtx.String("urfave-cli-test-namespace"))
} else {
spec.UrfaveCLITestNamespace = "cli."
}
genTmpl, err := template.New("gen").Parse(genflags.TemplateString)
if err != nil {
return err
}
genTestTmpl, err := template.New("gen_test").Parse(genflags.TestTemplateString)
if err != nil {
return err
}
genBuf := &bytes.Buffer{}
if err := genTmpl.Execute(genBuf, spec); err != nil {
return err
}
genTestBuf := &bytes.Buffer{}
if err := genTestTmpl.Execute(genTestBuf, spec); err != nil {
return err
}
if err := os.WriteFile(cCtx.Path("generated-output"), genBuf.Bytes(), 0644); err != nil {
return err
}
if err := os.WriteFile(cCtx.Path("generated-test-output"), genTestBuf.Bytes(), 0644); err != nil {
return err
}
if _, err := sh(cCtx.Context, "goimports", "-w", cCtx.Path("generated-output")); err != nil {
return err
}
if _, err := sh(cCtx.Context, "goimports", "-w", cCtx.Path("generated-test-output")); err != nil {
return err
}
return nil
}

@ -0,0 +1,53 @@
// WARNING: this file is generated. DO NOT EDIT
package {{.PackageName}}
{{range .SortedFlagTypes}}
// {{.TypeName}} is a flag with type {{.GoType}}
type {{.TypeName}} struct {
Name string
DefaultText string
FilePath string
Usage string
Required bool
Hidden bool
HasBeenSet bool
Value {{if .ValuePointer}}*{{end}}{{.GoType}}
Destination *{{.GoType}}
Aliases []string
EnvVars []string
{{range .StructFields}}
{{.Name}} {{.Type}}
{{end}}
}
{{if .GenerateFmtStringerInterface}}
// String returns a readable representation of this value (for usage defaults)
func (f *{{.TypeName}}) String() string {
return {{$.UrfaveCLINamespace}}FlagStringer(f)
}
{{end}}
{{if .GenerateFlagInterface}}
// IsSet returns whether or not the flag has been set through env or file
func (f *{{.TypeName}}) IsSet() bool {
return f.HasBeenSet
}
// Names returns the names of the flag
func (f *{{.TypeName}}) Names() []string {
return {{$.UrfaveCLINamespace}}FlagNames(f.Name, f.Aliases)
}
{{end}}{{/* /if .GenerateFlagInterface */}}
{{end}}{{/* /range .SortedFlagTypes */}}
// vim{{/* ๐Ÿ‘ป */}}:ro
{{/*
vim:filetype=gotexttmpl
*/}}

@ -0,0 +1,22 @@
// WARNING: this file is generated. DO NOT EDIT
package {{.TestPackageName}}
{{range .SortedFlagTypes}}
{{if .GenerateFlagInterface}}
func Test{{.TypeName}}_SatisfiesFlagInterface(t *testing.T) {
var _ {{$.UrfaveCLITestNamespace}}Flag = &{{$.UrfaveCLITestNamespace}}{{.TypeName}}{}
}
{{end}}
{{if .GenerateFmtStringerInterface}}
func Test{{.TypeName}}_SatisfiesFmtStringerInterface(t *testing.T) {
var _ fmt.Stringer = &{{$.UrfaveCLITestNamespace}}{{.TypeName}}{}
}
{{end}}
{{end}}
// vim{{/* ๐Ÿ‘ป */}}:ro
{{/*
vim:filetype=gotexttmpl
*/}}

@ -0,0 +1,34 @@
package genflags
import (
_ "embed"
"strings"
"golang.org/x/text/cases"
"golang.org/x/text/language"
)
var (
//go:embed generated.gotmpl
TemplateString string
//go:embed generated_test.gotmpl
TestTemplateString string
titler = cases.Title(language.Und, cases.NoLower)
)
func TypeName(goType string, fc *FlagTypeConfig) string {
if fc != nil && strings.TrimSpace(fc.TypeName) != "" {
return strings.TrimSpace(fc.TypeName)
}
dotSplit := strings.Split(goType, ".")
goType = dotSplit[len(dotSplit)-1]
if strings.HasPrefix(goType, "[]") {
return titler.String(strings.TrimPrefix(goType, "[]")) + "SliceFlag"
}
return titler.String(goType) + "Flag"
}

@ -0,0 +1,41 @@
package genflags_test
import (
"fmt"
"testing"
"github.com/urfave/cli/v2/internal/genflags"
)
func TestTypeName(t *testing.T) {
for _, tc := range []struct {
gt string
fc *genflags.FlagTypeConfig
expected string
}{
{gt: "int", fc: nil, expected: "IntFlag"},
{gt: "int", fc: &genflags.FlagTypeConfig{}, expected: "IntFlag"},
{gt: "int", fc: &genflags.FlagTypeConfig{TypeName: "VeryIntyFlag"}, expected: "VeryIntyFlag"},
{gt: "[]bool", fc: nil, expected: "BoolSliceFlag"},
{gt: "[]bool", fc: &genflags.FlagTypeConfig{}, expected: "BoolSliceFlag"},
{gt: "[]bool", fc: &genflags.FlagTypeConfig{TypeName: "ManyTruthsFlag"}, expected: "ManyTruthsFlag"},
{gt: "time.Rumination", fc: nil, expected: "RuminationFlag"},
{gt: "time.Rumination", fc: &genflags.FlagTypeConfig{}, expected: "RuminationFlag"},
{gt: "time.Rumination", fc: &genflags.FlagTypeConfig{TypeName: "PonderFlag"}, expected: "PonderFlag"},
} {
t.Run(
fmt.Sprintf("type=%s,cfg=%v", tc.gt, func() string {
if tc.fc != nil {
return tc.fc.TypeName
}
return "nil"
}()),
func(ct *testing.T) {
actual := genflags.TypeName(tc.gt, tc.fc)
if tc.expected != actual {
ct.Errorf("expected %q, got %q", tc.expected, actual)
}
},
)
}
}

@ -0,0 +1,100 @@
package genflags
import (
"sort"
"strings"
)
type Spec struct {
FlagTypes map[string]*FlagTypeConfig `yaml:"flag_types"`
PackageName string `yaml:"package_name"`
TestPackageName string `yaml:"test_package_name"`
UrfaveCLINamespace string `yaml:"urfave_cli_namespace"`
UrfaveCLITestNamespace string `yaml:"urfave_cli_test_namespace"`
}
func (gfs *Spec) SortedFlagTypes() []*FlagType {
typeNames := []string{}
for name := range gfs.FlagTypes {
if strings.HasPrefix(name, "[]") {
name = strings.TrimPrefix(name, "[]") + "Slice"
}
typeNames = append(typeNames, name)
}
sort.Strings(typeNames)
ret := make([]*FlagType, len(typeNames))
for i, typeName := range typeNames {
ret[i] = &FlagType{
GoType: typeName,
Config: gfs.FlagTypes[typeName],
}
}
return ret
}
type FlagTypeConfig struct {
SkipInterfaces []string `yaml:"skip_interfaces"`
StructFields []*FlagStructField `yaml:"struct_fields"`
TypeName string `yaml:"type_name"`
ValuePointer bool `yaml:"value_pointer"`
}
type FlagStructField struct {
Name string
Type string
}
type FlagType struct {
GoType string
Config *FlagTypeConfig
}
func (ft *FlagType) StructFields() []*FlagStructField {