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// Copyright 2012-2014 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package charm_test
import (
"io/ioutil"
"os"
"path/filepath"
"regexp"
jujutesting "github.com/juju/testing"
jc "github.com/juju/testing/checkers"
"github.com/juju/utils"
gc "gopkg.in/check.v1"
corecharm "gopkg.in/juju/charm.v6-unstable"
"github.com/juju/juju/api"
"github.com/juju/juju/api/uniter"
"github.com/juju/juju/juju/testing"
"github.com/juju/juju/state"
"github.com/juju/juju/testcharms"
"github.com/juju/juju/worker/uniter/charm"
)
type BundlesDirSuite struct {
testing.JujuConnSuite
st api.Connection
uniter *uniter.State
}
var _ = gc.Suite(&BundlesDirSuite{})
func (s *BundlesDirSuite) SetUpSuite(c *gc.C) {
s.JujuConnSuite.SetUpSuite(c)
}
func (s *BundlesDirSuite) TearDownSuite(c *gc.C) {
s.JujuConnSuite.TearDownSuite(c)
}
func (s *BundlesDirSuite) SetUpTest(c *gc.C) {
s.JujuConnSuite.SetUpTest(c)
// Add a charm, service and unit to login to the API with.
charm := s.AddTestingCharm(c, "wordpress")
service := s.AddTestingService(c, "wordpress", charm)
unit, err := service.AddUnit()
c.Assert(err, jc.ErrorIsNil)
password, err := utils.RandomPassword()
c.Assert(err, jc.ErrorIsNil)
err = unit.SetPassword(password)
c.Assert(err, jc.ErrorIsNil)
s.st = s.OpenAPIAs(c, unit.Tag(), password)
c.Assert(s.st, gc.NotNil)
s.uniter, err = s.st.Uniter()
c.Assert(err, jc.ErrorIsNil)
c.Assert(s.uniter, gc.NotNil)
}
func (s *BundlesDirSuite) TearDownTest(c *gc.C) {
err := s.st.Close()
c.Assert(err, jc.ErrorIsNil)
s.JujuConnSuite.TearDownTest(c)
}
func (s *BundlesDirSuite) AddCharm(c *gc.C) (charm.BundleInfo, *state.Charm) {
curl := corecharm.MustParseURL("cs:quantal/dummy-1")
bun := testcharms.Repo.CharmDir("dummy")
sch, err := testing.AddCharm(s.State, curl, bun)
c.Assert(err, jc.ErrorIsNil)
apiCharm, err := s.uniter.Charm(sch.URL())
c.Assert(err, jc.ErrorIsNil)
return apiCharm, sch
}
type fakeBundleInfo struct {
charm.BundleInfo
curl *corecharm.URL
sha256 string
}
func (f fakeBundleInfo) URL() *corecharm.URL {
if f.curl == nil {
return f.BundleInfo.URL()
}
return f.curl
}
func (f fakeBundleInfo) ArchiveSha256() (string, error) {
if f.sha256 == "" {
return f.BundleInfo.ArchiveSha256()
}
return f.sha256, nil
}
func (s *BundlesDirSuite) TestGet(c *gc.C) {
basedir := c.MkDir()
bunsDir := filepath.Join(basedir, "random", "bundles")
downloader := api.NewCharmDownloader(s.st.Client())
d := charm.NewBundlesDir(bunsDir, downloader)
checkDownloadsEmpty := func() {
files, err := ioutil.ReadDir(filepath.Join(bunsDir, "downloads"))
c.Assert(err, jc.ErrorIsNil)
c.Check(files, gc.HasLen, 0)
}
// Check it doesn't get created until it's needed.
_, err := os.Stat(bunsDir)
c.Assert(err, jc.Satisfies, os.IsNotExist)
// Add a charm to state that we can try to get.
apiCharm, sch := s.AddCharm(c)
// Try to get the charm when the content doesn't match.
_, err = d.Read(&fakeBundleInfo{apiCharm, nil, "..."}, nil)
c.Check(err, gc.ErrorMatches, regexp.QuoteMeta(`failed to download charm "cs:quantal/dummy-1" from API server: `)+`expected sha256 "...", got ".*"`)
checkDownloadsEmpty()
// Try to get a charm whose bundle doesn't exist.
otherURL := corecharm.MustParseURL("cs:quantal/spam-1")
_, err = d.Read(&fakeBundleInfo{apiCharm, otherURL, ""}, nil)
c.Check(err, gc.ErrorMatches, regexp.QuoteMeta(`failed to download charm "cs:quantal/spam-1" from API server: `)+`.* not found`)
checkDownloadsEmpty()
// Get a charm whose bundle exists and whose content matches.
ch, err := d.Read(apiCharm, nil)
c.Assert(err, jc.ErrorIsNil)
assertCharm(c, ch, sch)
checkDownloadsEmpty()
// Get the same charm again, without preparing a response from the server.
ch, err = d.Read(apiCharm, nil)
c.Assert(err, jc.ErrorIsNil)
assertCharm(c, ch, sch)
checkDownloadsEmpty()
// Check the abort chan is honoured.
err = os.RemoveAll(bunsDir)
c.Assert(err, jc.ErrorIsNil)
abort := make(chan struct{})
close(abort)
ch, err = d.Read(apiCharm, abort)
c.Check(ch, gc.IsNil)
c.Check(err, gc.ErrorMatches, regexp.QuoteMeta(`failed to download charm "cs:quantal/dummy-1" from API server: download aborted`))
checkDownloadsEmpty()
}
func assertCharm(c *gc.C, bun charm.Bundle, sch *state.Charm) {
actual := bun.(*corecharm.CharmArchive)
c.Assert(actual.Revision(), gc.Equals, sch.Revision())
c.Assert(actual.Meta(), gc.DeepEquals, sch.Meta())
c.Assert(actual.Config(), gc.DeepEquals, sch.Config())
}
type ClearDownloadsSuite struct {
jujutesting.IsolationSuite
}
var _ = gc.Suite(&ClearDownloadsSuite{})
func (s *ClearDownloadsSuite) TestWorks(c *gc.C) {
baseDir := c.MkDir()
bunsDir := filepath.Join(baseDir, "bundles")
downloadDir := filepath.Join(bunsDir, "downloads")
c.Assert(os.MkdirAll(downloadDir, 0777), jc.ErrorIsNil)
c.Assert(ioutil.WriteFile(filepath.Join(downloadDir, "stuff"), []byte("foo"), 0755), jc.ErrorIsNil)
c.Assert(ioutil.WriteFile(filepath.Join(downloadDir, "thing"), []byte("bar"), 0755), jc.ErrorIsNil)
err := charm.ClearDownloads(bunsDir)
c.Assert(err, jc.ErrorIsNil)
checkMissing(c, downloadDir)
}
func (s *ClearDownloadsSuite) TestEmptyOK(c *gc.C) {
baseDir := c.MkDir()
bunsDir := filepath.Join(baseDir, "bundles")
downloadDir := filepath.Join(bunsDir, "downloads")
c.Assert(os.MkdirAll(downloadDir, 0777), jc.ErrorIsNil)
err := charm.ClearDownloads(bunsDir)
c.Assert(err, jc.ErrorIsNil)
checkMissing(c, downloadDir)
}
func (s *ClearDownloadsSuite) TestMissingOK(c *gc.C) {
baseDir := c.MkDir()
bunsDir := filepath.Join(baseDir, "bundles")
err := charm.ClearDownloads(bunsDir)
c.Assert(err, jc.ErrorIsNil)
}
func checkMissing(c *gc.C, p string) {
_, err := os.Stat(p)
if !os.IsNotExist(err) {
c.Fatalf("checking %s is missing: %v", p, err)
}
}
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