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sources: Get latest release from mirror

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Signed-off-by: Thomas Hipp <thomas.hipp@canonical.com>
This commit is contained in:
Thomas Hipp 2019-03-04 13:44:43 +01:00
parent 7c8186e42d
commit 7e8a05b899
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GPG Key ID: 993408D1137B7D51
2 changed files with 21 additions and 7 deletions
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26
sources/archlinux-http.go
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@ -7,7 +7,7 @@ import (
"os"
"path"
"path/filepath"
"strings"
"regexp"
"github.com/lxc/distrobuilder/shared"
@ -33,7 +33,7 @@ func (s *ArchLinuxHTTP) Run(definition shared.Definition, rootfsDir string) erro
var err error
// Get latest release
release, err = s.getLatestRelease()
release, err = s.getLatestRelease(definition.Source.URL, definition.Image.ArchitectureMapped)
if err != nil {
return err
}
@ -110,16 +110,30 @@ func (s *ArchLinuxHTTP) Run(definition shared.Definition, rootfsDir string) erro
definition.Image.ArchitectureMapped))
}
func (s *ArchLinuxHTTP) getLatestRelease() (string, error) {
doc, err := htmlquery.LoadURL("https://www.archlinux.org/download/")
func (s *ArchLinuxHTTP) getLatestRelease(URL string, arch string) (string, error) {
u, err := url.Parse(URL)
if err != nil {
return "", err
}
node := htmlquery.FindOne(doc, `//*[@id="arch-downloads"]/ul[1]/li[1]/text()`)
u.Path = path.Join(u.Path, "latest")
doc, err := htmlquery.LoadURL(u.String())
if err != nil {
return "", err
}
node := htmlquery.FindOne(doc, `//a[starts-with(text(),'archlinux-bootstrap-')][ends-with(text(),'.tar.gz')][@href]/text()`)
if node == nil {
return "", fmt.Errorf("Failed to determine latest release")
}
return strings.TrimSpace(node.Data), nil
re := regexp.MustCompile(fmt.Sprintf(`^archlinux-bootstrap-(\d{4}\.\d{2}\.\d{2})-%s.tar.gz$`, arch))
match := re.FindStringSubmatch(node.Data)
if len(match) != 2 {
return "", fmt.Errorf("Failed to determine latest release")
}
return match[1], nil
}

2
sources/archlinux-http_test.go
View File

@ -10,7 +10,7 @@ import (
func TestArchLinuxGetLatestRelease(t *testing.T) {
var src ArchLinuxHTTP
release, err := src.getLatestRelease()
release, err := src.getLatestRelease("https://mirrors.evowise.com/archlinux/iso/", "x86_64")
require.NoError(t, err)
require.Regexp(t, regexp.MustCompile(`^\d{4}\.\d{2}\.\d{2}$`), release)
}