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package main
import (
"context"
"fmt"
"log"
"os"
"github.com/fatih/color"
"github.com/urfave/cli/v3"
)
var NoCache, DoClearCache bool
var ListAscend, ListDescend, ListNoDep bool
func main() {
EnsureBrewAvailable()
cmd := &cli.Command{
Name: "wthis",
Usage: "Fetch information of a Homebrew formulae or cask, like how it got installed, reverse dependencies, etc.",
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "no-cache",
Aliases: []string{"nc"},
Usage: "Disable caching",
Value: false,
Destination: &NoCache,
},
},
Action: func(ctx context.Context, cmd *cli.Command) error {
if DoClearCache {
ClearCache()
fmt.Println("Cache cleared.")
os.Exit(0)
}
if cmd.Args().Len() == 0 {
printErrorAndExit("Please provide a formulae/cask name.")
}
pkgName := cmd.Args().First()
stat := fetchAndDisplay(pkgName)
if !NoCache {
stat.Cache()
}
return nil
},
Commands: []*cli.Command{
{
Name: "list",
Aliases: []string{"l", "ls"},
Usage: "Better brew list.",
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "ascending",
Aliases: []string{"a"},
Usage: "Sort list ascendingly, based on dependency count.",
Value: false,
Destination: &ListAscend,
},
&cli.BoolFlag{
Name: "descending",
Aliases: []string{"d"},
Usage: "Sort list descendingly, based on dependency count.",
Value: false,
Destination: &ListDescend,
},
&cli.BoolFlag{
Name: "no-dependency",
Aliases: []string{"n", "nd"},
Usage: "Only show packages installed on request, with no dependency list.",
Value: false,
Destination: &ListNoDep,
},
},
Action: func(ctx context.Context, cmd *cli.Command) error {
return runList()
},
},
{
Name: "clean",
Aliases: []string{"c", "cache"},
Usage: "Delete all cache files.",
Action: func(ctx context.Context, cmd *cli.Command) error {
ClearCache()
fmt.Println("Cache cleared.")
return nil
},
},
},
}
if err := cmd.Run(context.Background(), os.Args); err != nil {
log.Fatal(err)
}
}
func fetchData(pkgName string,
fmlChan chan *FormulaInfo,
caskChan chan *CaskInfo,
rvsChan chan []string) {
go func() {
formula, cask := GetBrewInfo(pkgName)
fmlChan <- formula
caskChan <- cask
}()
go func() {
fmlChan <- GetFormulaFromAPI(pkgName)
}()
go func() {
caskChan <- GetCaskFromAPI(pkgName)
}()
go func() {
rvsChan <- GetBrewUses(pkgName)
}()
}
func printErrorAndExit(msg string) {
hideLoadingPrompt()
color.Red("❌ %s", msg)
os.Exit(1)
}
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