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format.go
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format.go
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// SPDX-License-Identifier: MIT
package main
import (
"os"
"text/template"
sprig "github.com/go-task/slim-sprig/v3"
"github.com/spf13/cobra"
"github.com/ffurrer2/semver/v2/internal/pkg/cli"
"github.com/ffurrer2/semver/v2/pkg/semver"
)
type semVer struct {
Major uint
Minor uint
Patch uint
PreRelease string
BuildMetadata string
}
var formatCmd = &cobra.Command{
Use: "format [flag] FORMAT [semver]",
Short: "Format and print semantic versions",
Long: `This command formats and prints the given semantic versions according to the given format template.
The struct being passed to the template is:
type SemVer struct {
Major uint
Minor uint
Patch uint
PreRelease string
BuildMetadata string
}`,
Example: ` semver format '{{.Major}}.{{.Minor}}' 1.0.0
semver format '{{.Major}}.{{.Minor}}.{{.Patch}}-{{.PreRelease}}.1' 1.0.0-alpha+001`,
Args: cobra.MinimumNArgs(1),
DisableFlagsInUseLine: true,
Run: func(cmd *cobra.Command, args []string) {
text := args[0]
tpl, err := template.New("semver").Funcs(sprig.FuncMap()).Parse(text)
if err != nil {
cmd.PrintErrf("error: %v\n", err)
os.Exit(1)
}
format := func(s string) {
semver, err := semver.Parse(s)
if err != nil {
cmd.PrintErrf("error: %v\n", err)
os.Exit(1)
}
data := semVer{
Major: semver.Major,
Minor: semver.Minor,
Patch: semver.Patch,
PreRelease: semver.PreReleaseString(),
BuildMetadata: semver.BuildMetadataString(),
}
err = tpl.Execute(os.Stdout, data)
if err != nil {
cmd.PrintErrf("error: %v\n", err)
os.Exit(1)
}
cmd.Printf("\n")
}
cli.Apply(args[1:], cmd.InOrStdin(), format)
},
}
func init() {
formatCmd.SetUsageTemplate(usageTemplate)
rootCmd.AddCommand(formatCmd)
}