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view.go
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195 lines (166 loc) · 4.69 KB
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package view
import (
"fmt"
"io"
"net/http"
"strings"
"time"
"github.com/MakeNowJust/heredoc"
"github.com/cli/cli/internal/ghrepo"
"github.com/cli/cli/pkg/cmd/release/shared"
"github.com/cli/cli/pkg/cmdutil"
"github.com/cli/cli/pkg/iostreams"
"github.com/cli/cli/pkg/markdown"
"github.com/cli/cli/utils"
"github.com/spf13/cobra"
)
type ViewOptions struct {
HttpClient func() (*http.Client, error)
IO *iostreams.IOStreams
BaseRepo func() (ghrepo.Interface, error)
TagName string
WebMode bool
}
func NewCmdView(f *cmdutil.Factory, runF func(*ViewOptions) error) *cobra.Command {
opts := &ViewOptions{
IO: f.IOStreams,
HttpClient: f.HttpClient,
}
cmd := &cobra.Command{
Use: "view [<tag>]",
Short: "View information about a release",
Long: heredoc.Doc(`
View information about a GitHub Release.
Without an explicit tag name argument, the latest release in the project
is shown.
`),
Args: cobra.MaximumNArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
// support `-R, --repo` override
opts.BaseRepo = f.BaseRepo
if len(args) > 0 {
opts.TagName = args[0]
}
if runF != nil {
return runF(opts)
}
return viewRun(opts)
},
}
cmd.Flags().BoolVarP(&opts.WebMode, "web", "w", false, "Open the release in the browser")
return cmd
}
func viewRun(opts *ViewOptions) error {
httpClient, err := opts.HttpClient()
if err != nil {
return err
}
baseRepo, err := opts.BaseRepo()
if err != nil {
return err
}
var release *shared.Release
if opts.TagName == "" {
release, err = shared.FetchLatestRelease(httpClient, baseRepo)
if err != nil {
return err
}
} else {
release, err = shared.FetchRelease(httpClient, baseRepo, opts.TagName)
if err != nil {
return err
}
}
if opts.WebMode {
if opts.IO.IsStdoutTTY() {
fmt.Fprintf(opts.IO.ErrOut, "Opening %s in your browser.\n", utils.DisplayURL(release.HTMLURL))
}
return utils.OpenInBrowser(release.HTMLURL)
}
if opts.IO.IsStdoutTTY() {
if err := renderReleaseTTY(opts.IO, release); err != nil {
return err
}
} else {
if err := renderReleasePlain(opts.IO.Out, release); err != nil {
return err
}
}
return nil
}
func renderReleaseTTY(io *iostreams.IOStreams, release *shared.Release) error {
iofmt := io.ColorScheme()
w := io.Out
fmt.Fprintf(w, "%s\n", iofmt.Bold(release.TagName))
if release.IsDraft {
fmt.Fprintf(w, "%s • ", iofmt.Red("Draft"))
} else if release.IsPrerelease {
fmt.Fprintf(w, "%s • ", iofmt.Yellow("Pre-release"))
}
if release.IsDraft {
fmt.Fprintf(w, "%s\n", iofmt.Gray(fmt.Sprintf("%s created this %s", release.Author.Login, utils.FuzzyAgo(time.Since(release.CreatedAt)))))
} else {
fmt.Fprintf(w, "%s\n", iofmt.Gray(fmt.Sprintf("%s released this %s", release.Author.Login, utils.FuzzyAgo(time.Since(release.PublishedAt)))))
}
style := markdown.GetStyle(io.DetectTerminalTheme())
renderedDescription, err := markdown.Render(release.Body, style, "")
if err != nil {
return err
}
fmt.Fprintln(w, renderedDescription)
if len(release.Assets) > 0 {
fmt.Fprintf(w, "%s\n", iofmt.Bold("Assets"))
table := utils.NewTablePrinter(io)
for _, a := range release.Assets {
table.AddField(a.Name, nil, nil)
table.AddField(humanFileSize(a.Size), nil, nil)
table.EndRow()
}
err := table.Render()
if err != nil {
return err
}
fmt.Fprint(w, "\n")
}
fmt.Fprintf(w, "%s\n", iofmt.Gray(fmt.Sprintf("View on GitHub: %s", release.HTMLURL)))
return nil
}
func renderReleasePlain(w io.Writer, release *shared.Release) error {
fmt.Fprintf(w, "title:\t%s\n", release.Name)
fmt.Fprintf(w, "tag:\t%s\n", release.TagName)
fmt.Fprintf(w, "draft:\t%v\n", release.IsDraft)
fmt.Fprintf(w, "prerelease:\t%v\n", release.IsPrerelease)
fmt.Fprintf(w, "author:\t%s\n", release.Author.Login)
fmt.Fprintf(w, "created:\t%s\n", release.CreatedAt.Format(time.RFC3339))
if !release.IsDraft {
fmt.Fprintf(w, "published:\t%s\n", release.PublishedAt.Format(time.RFC3339))
}
fmt.Fprintf(w, "url:\t%s\n", release.HTMLURL)
for _, a := range release.Assets {
fmt.Fprintf(w, "asset:\t%s\n", a.Name)
}
fmt.Fprint(w, "--\n")
fmt.Fprint(w, release.Body)
return nil
}
func humanFileSize(s int64) string {
if s < 1024 {
return fmt.Sprintf("%d B", s)
}
kb := float64(s) / 1024
if kb < 1024 {
return fmt.Sprintf("%s KiB", floatToString(kb, 2))
}
mb := kb / 1024
if mb < 1024 {
return fmt.Sprintf("%s MiB", floatToString(mb, 2))
}
gb := mb / 1024
return fmt.Sprintf("%s GiB", floatToString(gb, 2))
}
// render float to fixed precision using truncation instead of rounding
func floatToString(f float64, p uint8) string {
fs := fmt.Sprintf("%#f%0*s", f, p, "")
idx := strings.IndexRune(fs, '.')
return fs[:idx+int(p)+1]
}