github.com/abdfnx/gh-api@v0.0.0-20210414084727-f5432eec23b8/pkg/cmd/run/download/http.go (about)

     1  package download
     2  
     3  import (
     4  	"archive/zip"
     5  	"fmt"
     6  	"io"
     7  	"io/ioutil"
     8  	"net/http"
     9  	"os"
    10  
    11  	"github.com/abdfnx/gh-api/api"
    12  	"github.com/abdfnx/gh-api/internal/ghrepo"
    13  	"github.com/abdfnx/gh-api/pkg/cmd/run/shared"
    14  )
    15  
    16  type apiPlatform struct {
    17  	client *http.Client
    18  	repo   ghrepo.Interface
    19  }
    20  
    21  func (p *apiPlatform) List(runID string) ([]shared.Artifact, error) {
    22  	return shared.ListArtifacts(p.client, p.repo, runID)
    23  }
    24  
    25  func (p *apiPlatform) Download(url string, dir string) error {
    26  	return downloadArtifact(p.client, url, dir)
    27  }
    28  
    29  func downloadArtifact(httpClient *http.Client, url, destDir string) error {
    30  	req, err := http.NewRequest("GET", url, nil)
    31  	if err != nil {
    32  		return err
    33  	}
    34  	// The server rejects this :(
    35  	//req.Header.Set("Accept", "application/zip")
    36  
    37  	resp, err := httpClient.Do(req)
    38  	if err != nil {
    39  		return err
    40  	}
    41  	defer resp.Body.Close()
    42  
    43  	if resp.StatusCode > 299 {
    44  		return api.HandleHTTPError(resp)
    45  	}
    46  
    47  	tmpfile, err := ioutil.TempFile("", "gh-artifact.*.zip")
    48  	if err != nil {
    49  		return fmt.Errorf("error initializing temporary file: %w", err)
    50  	}
    51  	defer func() {
    52  		_ = tmpfile.Close()
    53  		_ = os.Remove(tmpfile.Name())
    54  	}()
    55  
    56  	size, err := io.Copy(tmpfile, resp.Body)
    57  	if err != nil {
    58  		return fmt.Errorf("error writing zip archive: %w", err)
    59  	}
    60  
    61  	zipfile, err := zip.NewReader(tmpfile, size)
    62  	if err != nil {
    63  		return fmt.Errorf("error extracting zip archive: %w", err)
    64  	}
    65  	if err := extractZip(zipfile, destDir); err != nil {
    66  		return fmt.Errorf("error extracting zip archive: %w", err)
    67  	}
    68  
    69  	return nil
    70  }