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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2020 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 image_test
import (
"os"
"os/exec"
"path/filepath"
"sort"
"strings"
"gopkg.in/check.v1"
"github.com/snapcore/snapd/gadget"
"github.com/snapcore/snapd/image"
"github.com/snapcore/snapd/snap/snaptest"
)
var validGadgetYaml = `
volumes:
vol1:
bootloader: grub
structure:
- name: non-fs
type: bare
size: 512
offset: 0
content:
- image: non-fs.img
- name: ubuntu-seed
role: system-seed
type: 83,0FC63DAF-8483-4772-8E79-3D69D8477DE4
size: 100M
filesystem: ext4
content:
- source: system-seed.efi
target: EFI/boot/system-seed.efi
- name: structure-name
role: system-boot
type: 83,0FC63DAF-8483-4772-8E79-3D69D8477DE4
size: 100M
filesystem: ext4
content:
- source: grubx64.efi
target: EFI/boot/grubx64.efi
- name: ubuntu-data
role: system-data
type: 83,0FC63DAF-8483-4772-8E79-3D69D8477DE4
size: 100M
vol2:
structure:
- name: struct2
type: 83,0FC63DAF-8483-4772-8E79-3D69D8477DE4
size: 100M
filesystem: ext4
content:
- source: foo
target: subdir/foo
`
func (s *imageSuite) TestWriteResolvedContent(c *check.C) {
prepareImageDir := c.MkDir()
s.testWriteResolvedContent(c, prepareImageDir)
}
func (s *imageSuite) TestWriteResolvedContentRelativePath(c *check.C) {
prepareImageDir := c.MkDir()
// chdir to prepareImage dir and run writeResolvedContent from
// this relative dir
cwd, err := os.Getwd()
c.Assert(err, check.IsNil)
err = os.Chdir(prepareImageDir)
c.Assert(err, check.IsNil)
defer func() { os.Chdir(cwd) }()
s.testWriteResolvedContent(c, ".")
}
// treeLines is used to sort the output from find
type treeLines []string
func (t treeLines) Len() int {
return len(t)
}
func (t treeLines) Less(i, j int) bool {
// strip off the first character of the two strings (assuming the strings
// are at least 1 character long)
s1 := t[i]
if len(s1) > 1 {
s1 = s1[1:]
}
s2 := t[j]
if len(s2) > 1 {
s2 = s2[1:]
}
return s1 < s2
}
func (t treeLines) Swap(i, j int) {
t[i], t[j] = t[j], t[i]
}
func (s *imageSuite) testWriteResolvedContent(c *check.C, prepareImageDir string) {
// on uc20 there is a "system-seed" under the <PrepareImageDir>
uc20systemSeed, err := filepath.Abs(filepath.Join(prepareImageDir, "system-seed"))
c.Assert(err, check.IsNil)
err = os.MkdirAll(uc20systemSeed, 0755)
c.Assert(err, check.IsNil)
// the resolved content is written here
gadgetRoot := c.MkDir()
snaptest.PopulateDir(gadgetRoot, [][]string{
{"meta/snap.yaml", packageGadget},
{"meta/gadget.yaml", validGadgetYaml},
{"system-seed.efi", "content of system-seed.efi"},
{"grubx64.efi", "content of grubx64.efi"},
{"foo", "content of foo"},
{"non-fs.img", "content of non-fs.img"},
})
kernelRoot := c.MkDir()
model := s.makeUC20Model(nil)
gadgetInfo, err := gadget.ReadInfoAndValidate(gadgetRoot, model, nil)
c.Assert(err, check.IsNil)
err = image.WriteResolvedContent(prepareImageDir, gadgetInfo, gadgetRoot, kernelRoot)
c.Assert(err, check.IsNil)
// XXX: add testutil.DirEquals([][]string)
cmd := exec.Command("find", ".", "-printf", "%y %P\n")
cmd.Dir = prepareImageDir
tree, err := cmd.CombinedOutput()
c.Assert(err, check.IsNil)
// sort the tree output
lines := strings.Split(string(tree), "\n")
sort.Sort(treeLines(lines))
c.Check(strings.Join(lines, "\n"), check.Equals, `
d
d resolved-content
d resolved-content/vol1
l resolved-content/vol1/part1
d resolved-content/vol1/part2
d resolved-content/vol1/part2/EFI
d resolved-content/vol1/part2/EFI/boot
f resolved-content/vol1/part2/EFI/boot/grubx64.efi
d resolved-content/vol2
d resolved-content/vol2/part0
d resolved-content/vol2/part0/subdir
f resolved-content/vol2/part0/subdir/foo
d system-seed
d system-seed/EFI
d system-seed/EFI/boot
f system-seed/EFI/boot/system-seed.efi`)
// check symlink target for "ubuntu-seed" -> <prepareImageDir>/system-seed
t, err := os.Readlink(filepath.Join(prepareImageDir, "resolved-content/vol1/part1"))
c.Assert(err, check.IsNil)
c.Check(t, check.Equals, uc20systemSeed)
}
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