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package main
import (
"bytes"
"context"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"net/http"
"github.com/google/subcommands"
"github.com/mmcloughlin/addchain/internal/cli"
"github.com/mmcloughlin/addchain/internal/zenodo"
)
// upload subcommand.
type upload struct {
cli.Command
httpclient HTTPClient
zenodo Zenodo
varsfile VarsFile
metadata string
publish bool
}
func (*upload) Name() string { return "upload" }
func (*upload) Synopsis() string { return "upload version" }
func (*upload) Usage() string {
return `Usage: upload <version>
Bump version and update related files.
`
}
func (cmd *upload) SetFlags(f *flag.FlagSet) {
cmd.httpclient.SetFlags(f)
cmd.zenodo.SetFlags(f)
cmd.varsfile.SetFlags(f)
f.StringVar(&cmd.metadata, "metadata", RepoPath(".zenodo.json"), "path to zenodo metadata")
f.BoolVar(&cmd.publish, "publish", false, "publish the zenodo record")
}
func (cmd *upload) Execute(ctx context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
// Fetch version.
version, err := cmd.varsfile.Get("releaseversion")
if err != nil {
return cmd.Error(err)
}
// HTTP Client.
httpclient, err := cmd.httpclient.Client()
if err != nil {
return cmd.Error(err)
}
// Download archive from github.
archive := bytes.NewBuffer(nil)
url := "https://api.github.com/repos/mmcloughlin/addchain/zipball/v" + version
if err := Download(ctx, archive, httpclient, url); err != nil {
return cmd.Error(err)
}
cmd.Log.Printf("downloaded zip archive bytes %d", archive.Len())
// Zenodo client.
client, err := cmd.zenodo.Client(httpclient)
if err != nil {
return cmd.Error(err)
}
// Load zenodo metadata.
metadata, err := LoadZenodoMetadata(cmd.metadata)
if err != nil {
return cmd.Error(err)
}
cmd.Log.Printf("loaded zenodo metadata from %q", cmd.metadata)
// Set metadata.
id, err := cmd.varsfile.Get("zenodoid")
if err != nil {
return cmd.Error(err)
}
d, err := client.DepositionUpdate(ctx, id, metadata)
if err != nil {
return cmd.Error(err)
}
cmd.Log.Printf("updated zenodo metadata")
// Clear Zenodo files.
if err := client.DepositionFilesDeleteAll(ctx, id); err != nil {
return cmd.Error(err)
}
cmd.Log.Printf("cleared all files from zenodo deposit")
// Upload new Zenodo file.
archivefilename := fmt.Sprintf("addchain_%s.zip", version)
file, err := client.DepositionFilesCreate(ctx, id, archivefilename, "application/zip", archive)
if err != nil {
return cmd.Error(err)
}
cmd.Log.Printf("uploaded file %q", file.Filename)
// Optionally publish zenodo deposit.
if cmd.publish {
if _, err := client.DepositionPublish(ctx, id); err != nil {
return cmd.Error(err)
}
cmd.Log.Printf("published zenodo record")
} else {
cmd.Log.Printf("publish skipped: review and publish at %q", d.Links["html"])
}
return subcommands.ExitSuccess
}
// Download a file over HTTP.
func Download(ctx context.Context, w io.Writer, c *http.Client, url string) (err error) {
// Issue GET request.
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
if err != nil {
return err
}
res, err := c.Do(req)
if err != nil {
return err
}
defer func() {
if errc := res.Body.Close(); errc != nil && err == nil {
err = errc
}
}()
// Copy to writer.
_, err = io.Copy(w, res.Body)
return
}
// LoadZenodoMetadata reads and parses a Zenodo metadata file.
func LoadZenodoMetadata(filename string) (*zenodo.DepositionMetadata, error) {
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
m := new(zenodo.DepositionMetadata)
if err := json.Unmarshal(b, m); err != nil {
return nil, err
}
return m, nil
}
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