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build_test.go
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build_test.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2016 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package snaptest_test
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
"syscall"
"github.com/snapcore/snapd/dirs"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/snap/snaptest"
"github.com/snapcore/snapd/testutil"
. "gopkg.in/check.v1"
)
type BuildTestSuite struct {
testutil.BaseTest
}
var _ = Suite(&BuildTestSuite{})
func (s *BuildTestSuite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
// chdir into a tempdir
pwd, err := os.Getwd()
c.Assert(err, IsNil)
s.AddCleanup(func() { os.Chdir(pwd) })
err = os.Chdir(c.MkDir())
c.Assert(err, IsNil)
// use fake root
dirs.SetRootDir(c.MkDir())
}
func makeExampleSnapSourceDir(c *C, snapYamlContent string) string {
tempdir := c.MkDir()
// use meta/snap.yaml
metaDir := filepath.Join(tempdir, "meta")
err := os.Mkdir(metaDir, 0755)
c.Assert(err, IsNil)
err = ioutil.WriteFile(filepath.Join(metaDir, "snap.yaml"), []byte(snapYamlContent), 0644)
c.Assert(err, IsNil)
const helloBinContent = `#!/bin/sh
printf "hello world"
`
// an example binary
binDir := filepath.Join(tempdir, "bin")
err = os.Mkdir(binDir, 0755)
c.Assert(err, IsNil)
err = ioutil.WriteFile(filepath.Join(binDir, "hello-world"), []byte(helloBinContent), 0755)
c.Assert(err, IsNil)
// unusual permissions for dir
tmpDir := filepath.Join(tempdir, "tmp")
err = os.Mkdir(tmpDir, 0755)
c.Assert(err, IsNil)
// avoid umask
err = os.Chmod(tmpDir, 01777)
c.Assert(err, IsNil)
// and file
someFile := filepath.Join(tempdir, "file-with-perm")
err = ioutil.WriteFile(someFile, []byte(""), 0666)
c.Assert(err, IsNil)
err = os.Chmod(someFile, 0666)
c.Assert(err, IsNil)
// an example symlink
err = os.Symlink("bin/hello-world", filepath.Join(tempdir, "symlink"))
c.Assert(err, IsNil)
return tempdir
}
func (s *BuildTestSuite) TestBuildNoManifestFails(c *C) {
sourceDir := makeExampleSnapSourceDir(c, "")
c.Assert(os.Remove(filepath.Join(sourceDir, "meta", "snap.yaml")), IsNil)
_, err := snaptest.BuildSquashfsSnap(sourceDir, "")
c.Assert(err, NotNil) // XXX maybe make the error more explicit
}
func (s *BuildTestSuite) TestCopyCopies(c *C) {
sourceDir := makeExampleSnapSourceDir(c, "name: hello")
// actually this'll be on /tmp so it'll be a link
target := c.MkDir()
c.Assert(snaptest.CopyToBuildDir(sourceDir, target), IsNil)
out, err := exec.Command("diff", "-qrN", sourceDir, target).Output()
c.Check(err, IsNil)
c.Check(out, DeepEquals, []byte{})
}
func (s *BuildTestSuite) TestCopyActuallyCopies(c *C) {
sourceDir := makeExampleSnapSourceDir(c, "name: hello")
// hoping to get the non-linking behaviour via /dev/shm
target, err := ioutil.TempDir("/dev/shm", "copy")
// sbuild environments won't allow writing to /dev/shm, so its
// ok to skip there
if os.IsPermission(err) {
c.Skip("/dev/shm is not writable for us")
}
c.Assert(err, IsNil)
c.Assert(snaptest.CopyToBuildDir(sourceDir, target), IsNil)
out, err := exec.Command("diff", "-qrN", sourceDir, target).Output()
c.Check(err, IsNil)
c.Check(out, DeepEquals, []byte{})
}
func (s *BuildTestSuite) TestCopyExcludesBackups(c *C) {
sourceDir := makeExampleSnapSourceDir(c, "name: hello")
target := c.MkDir()
// add a backup file
c.Assert(ioutil.WriteFile(filepath.Join(sourceDir, "foo~"), []byte("hi"), 0755), IsNil)
c.Assert(snaptest.CopyToBuildDir(sourceDir, target), IsNil)
cmd := exec.Command("diff", "-qr", sourceDir, target)
cmd.Env = append(cmd.Env, "LANG=C")
out, err := cmd.Output()
c.Check(err, NotNil)
c.Check(string(out), Matches, `(?m)Only in \S+: foo~`)
}
func (s *BuildTestSuite) TestCopyExcludesTopLevelDEBIAN(c *C) {
sourceDir := makeExampleSnapSourceDir(c, "name: hello")
target := c.MkDir()
// add a toplevel DEBIAN
c.Assert(os.MkdirAll(filepath.Join(sourceDir, "DEBIAN", "foo"), 0755), IsNil)
// and a non-toplevel DEBIAN
c.Assert(os.MkdirAll(filepath.Join(sourceDir, "bar", "DEBIAN", "baz"), 0755), IsNil)
c.Assert(snaptest.CopyToBuildDir(sourceDir, target), IsNil)
cmd := exec.Command("diff", "-qr", sourceDir, target)
cmd.Env = append(cmd.Env, "LANG=C")
out, err := cmd.Output()
c.Check(err, NotNil)
c.Check(string(out), Matches, `(?m)Only in \S+: DEBIAN`)
// but *only one* DEBIAN is skipped
c.Check(strings.Count(string(out), "Only in"), Equals, 1)
}
func (s *BuildTestSuite) TestCopyExcludesWholeDirs(c *C) {
sourceDir := makeExampleSnapSourceDir(c, "name: hello")
target := c.MkDir()
// add a file inside a skipped dir
c.Assert(os.Mkdir(filepath.Join(sourceDir, ".bzr"), 0755), IsNil)
c.Assert(ioutil.WriteFile(filepath.Join(sourceDir, ".bzr", "foo"), []byte("hi"), 0755), IsNil)
c.Assert(snaptest.CopyToBuildDir(sourceDir, target), IsNil)
out, _ := exec.Command("find", sourceDir).Output()
cmd := exec.Command("diff", "-qr", sourceDir, target)
cmd.Env = append(cmd.Env, "LANG=C")
out, err := cmd.Output()
c.Check(err, NotNil)
c.Check(string(out), Matches, `(?m)Only in \S+: \.bzr`)
}
func (s *BuildTestSuite) TestExcludeDynamicFalseIfNoSnapignore(c *C) {
basedir := c.MkDir()
c.Check(snaptest.ShouldExcludeDynamic(basedir, "foo"), Equals, false)
}
func (s *BuildTestSuite) TestExcludeDynamicWorksIfSnapignore(c *C) {
basedir := c.MkDir()
c.Assert(ioutil.WriteFile(filepath.Join(basedir, ".snapignore"), []byte("foo\nb.r\n"), 0644), IsNil)
c.Check(snaptest.ShouldExcludeDynamic(basedir, "foo"), Equals, true)
c.Check(snaptest.ShouldExcludeDynamic(basedir, "bar"), Equals, true)
c.Check(snaptest.ShouldExcludeDynamic(basedir, "bzr"), Equals, true)
c.Check(snaptest.ShouldExcludeDynamic(basedir, "baz"), Equals, false)
}
func (s *BuildTestSuite) TestExcludeDynamicWeirdRegexps(c *C) {
basedir := c.MkDir()
c.Assert(ioutil.WriteFile(filepath.Join(basedir, ".snapignore"), []byte("*hello\n"), 0644), IsNil)
// note "*hello" is not a valid regexp, so will be taken literally (not globbed!)
c.Check(snaptest.ShouldExcludeDynamic(basedir, "ahello"), Equals, false)
c.Check(snaptest.ShouldExcludeDynamic(basedir, "*hello"), Equals, true)
}
func (s *BuildTestSuite) TestDebArchitecture(c *C) {
c.Check(snaptest.DebArchitecture(&snap.Info{Architectures: []string{"foo"}}), Equals, "foo")
c.Check(snaptest.DebArchitecture(&snap.Info{Architectures: []string{"foo", "bar"}}), Equals, "multi")
c.Check(snaptest.DebArchitecture(&snap.Info{Architectures: nil}), Equals, "unknown")
}
func (s *BuildTestSuite) TestBuildFailsForUnknownType(c *C) {
sourceDir := makeExampleSnapSourceDir(c, `name: hello
version: 1.0.1
`)
err := syscall.Mkfifo(filepath.Join(sourceDir, "fifo"), 0644)
c.Assert(err, IsNil)
_, err = snaptest.BuildSquashfsSnap(sourceDir, "")
c.Assert(err, ErrorMatches, "cannot handle type of file .*")
}
func (s *BuildTestSuite) TestBuildSquashfsSimple(c *C) {
sourceDir := makeExampleSnapSourceDir(c, `name: hello
version: 1.0.1
architectures: ["i386", "amd64"]
integration:
app:
apparmor-profile: meta/hello.apparmor
`)
resultSnap, err := snaptest.BuildSquashfsSnap(sourceDir, "")
c.Assert(err, IsNil)
// check that there is result
_, err = os.Stat(resultSnap)
c.Assert(err, IsNil)
c.Assert(resultSnap, Equals, "hello_1.0.1_multi.snap")
// check that the content looks sane
output, err := exec.Command("unsquashfs", "-ll", "hello_1.0.1_multi.snap").CombinedOutput()
c.Assert(err, IsNil)
for _, needle := range []string{
"meta/snap.yaml",
"bin/hello-world",
"symlink -> bin/hello-world",
} {
expr := fmt.Sprintf(`(?ms).*%s.*`, regexp.QuoteMeta(needle))
c.Assert(string(output), Matches, expr)
}
}
func (s *BuildTestSuite) TestBuildSimpleOutputDir(c *C) {
sourceDir := makeExampleSnapSourceDir(c, `name: hello
version: 1.0.1
architectures: ["i386", "amd64"]
integration:
app:
apparmor-profile: meta/hello.apparmor
`)
outputDir := filepath.Join(c.MkDir(), "output")
snapOutput := filepath.Join(outputDir, "hello_1.0.1_multi.snap")
resultSnap, err := snaptest.BuildSquashfsSnap(sourceDir, outputDir)
c.Assert(err, IsNil)
// check that there is result
_, err = os.Stat(resultSnap)
c.Assert(err, IsNil)
c.Assert(resultSnap, Equals, snapOutput)
// check that the content looks sane
output, err := exec.Command("unsquashfs", "-ll", resultSnap).CombinedOutput()
c.Assert(err, IsNil)
for _, needle := range []string{
"meta/snap.yaml",
"bin/hello-world",
"symlink -> bin/hello-world",
} {
expr := fmt.Sprintf(`(?ms).*%s.*`, regexp.QuoteMeta(needle))
c.Assert(string(output), Matches, expr)
}
}