mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
298 lines
7.4 KiB
Go
298 lines
7.4 KiB
Go
package main
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"github.com/docker/docker/pkg/archive"
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"github.com/go-check/check"
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)
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type fileType uint32
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const (
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ftRegular fileType = iota
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ftDir
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ftSymlink
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)
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type fileData struct {
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filetype fileType
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path string
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contents string
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}
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func (fd fileData) creationCommand() string {
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var command string
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switch fd.filetype {
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case ftRegular:
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// Don't overwrite the file if it already exists!
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command = fmt.Sprintf("if [ ! -f %s ]; then echo %q > %s; fi", fd.path, fd.contents, fd.path)
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case ftDir:
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command = fmt.Sprintf("mkdir -p %s", fd.path)
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case ftSymlink:
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command = fmt.Sprintf("ln -fs %s %s", fd.contents, fd.path)
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}
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return command
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}
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func mkFilesCommand(fds []fileData) string {
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commands := make([]string, len(fds))
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for i, fd := range fds {
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commands[i] = fd.creationCommand()
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}
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return strings.Join(commands, " && ")
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}
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var defaultFileData = []fileData{
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{ftRegular, "file1", "file1"},
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{ftRegular, "file2", "file2"},
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{ftRegular, "file3", "file3"},
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{ftRegular, "file4", "file4"},
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{ftRegular, "file5", "file5"},
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{ftRegular, "file6", "file6"},
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{ftRegular, "file7", "file7"},
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{ftDir, "dir1", ""},
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{ftRegular, "dir1/file1-1", "file1-1"},
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{ftRegular, "dir1/file1-2", "file1-2"},
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{ftDir, "dir2", ""},
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{ftRegular, "dir2/file2-1", "file2-1"},
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{ftRegular, "dir2/file2-2", "file2-2"},
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{ftDir, "dir3", ""},
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{ftRegular, "dir3/file3-1", "file3-1"},
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{ftRegular, "dir3/file3-2", "file3-2"},
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{ftDir, "dir4", ""},
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{ftRegular, "dir4/file3-1", "file4-1"},
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{ftRegular, "dir4/file3-2", "file4-2"},
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{ftDir, "dir5", ""},
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{ftSymlink, "symlink1", "target1"},
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{ftSymlink, "symlink2", "target2"},
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}
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func defaultMkContentCommand() string {
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return mkFilesCommand(defaultFileData)
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}
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func makeTestContentInDir(c *check.C, dir string) {
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for _, fd := range defaultFileData {
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path := filepath.Join(dir, filepath.FromSlash(fd.path))
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switch fd.filetype {
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case ftRegular:
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if err := ioutil.WriteFile(path, []byte(fd.contents+"\n"), os.FileMode(0666)); err != nil {
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c.Fatal(err)
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}
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case ftDir:
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if err := os.Mkdir(path, os.FileMode(0777)); err != nil {
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c.Fatal(err)
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}
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case ftSymlink:
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if err := os.Symlink(fd.contents, path); err != nil {
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c.Fatal(err)
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}
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}
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}
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}
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type testContainerOptions struct {
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addContent bool
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readOnly bool
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volumes []string
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workDir string
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command string
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}
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func makeTestContainer(c *check.C, options testContainerOptions) (containerID string) {
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if options.addContent {
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mkContentCmd := defaultMkContentCommand()
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if options.command == "" {
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options.command = mkContentCmd
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} else {
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options.command = fmt.Sprintf("%s && %s", defaultMkContentCommand(), options.command)
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}
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}
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if options.command == "" {
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options.command = "#(nop)"
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}
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args := []string{"run", "-d"}
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for _, volume := range options.volumes {
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args = append(args, "-v", volume)
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}
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if options.workDir != "" {
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args = append(args, "-w", options.workDir)
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}
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if options.readOnly {
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args = append(args, "--read-only")
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}
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args = append(args, "busybox", "/bin/sh", "-c", options.command)
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out, status := dockerCmd(c, args...)
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if status != 0 {
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c.Fatalf("failed to run container, status %d: %s", status, out)
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}
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containerID = strings.TrimSpace(out)
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out, status = dockerCmd(c, "wait", containerID)
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if status != 0 {
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c.Fatalf("failed to wait for test container container, status %d: %s", status, out)
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}
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if exitCode := strings.TrimSpace(out); exitCode != "0" {
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logs, status := dockerCmd(c, "logs", containerID)
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if status != 0 {
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logs = "UNABLE TO GET LOGS"
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}
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c.Fatalf("failed to make test container, exit code (%s): %s", exitCode, logs)
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}
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return
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}
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func makeCatFileCommand(path string) string {
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return fmt.Sprintf("if [ -f %s ]; then cat %s; fi", path, path)
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}
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func cpPath(pathElements ...string) string {
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localizedPathElements := make([]string, len(pathElements))
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for i, path := range pathElements {
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localizedPathElements[i] = filepath.FromSlash(path)
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}
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return strings.Join(localizedPathElements, string(filepath.Separator))
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}
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func cpPathTrailingSep(pathElements ...string) string {
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return fmt.Sprintf("%s%c", cpPath(pathElements...), filepath.Separator)
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}
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func containerCpPath(containerID string, pathElements ...string) string {
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joined := strings.Join(pathElements, "/")
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return fmt.Sprintf("%s:%s", containerID, joined)
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}
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func containerCpPathTrailingSep(containerID string, pathElements ...string) string {
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return fmt.Sprintf("%s/", containerCpPath(containerID, pathElements...))
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}
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func runDockerCp(c *check.C, src, dst string) (err error) {
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c.Logf("running `docker cp %s %s`", src, dst)
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args := []string{"cp", src, dst}
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out, _, err := runCommandWithOutput(exec.Command(dockerBinary, args...))
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if err != nil {
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err = fmt.Errorf("error executing `docker cp` command: %s: %s", err, out)
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}
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return
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}
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func startContainerGetOutput(c *check.C, cID string) (out string, err error) {
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c.Logf("running `docker start -a %s`", cID)
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args := []string{"start", "-a", cID}
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out, _, err = runCommandWithOutput(exec.Command(dockerBinary, args...))
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if err != nil {
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err = fmt.Errorf("error executing `docker start` command: %s: %s", err, out)
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}
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return
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}
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func getTestDir(c *check.C, label string) (tmpDir string) {
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var err error
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if tmpDir, err = ioutil.TempDir("", label); err != nil {
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c.Fatalf("unable to make temporary directory: %s", err)
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}
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return
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}
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func isCpNotExist(err error) bool {
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return strings.Contains(err.Error(), "no such file or directory") || strings.Contains(err.Error(), "cannot find the file specified")
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}
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func isCpDirNotExist(err error) bool {
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return strings.Contains(err.Error(), archive.ErrDirNotExists.Error())
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}
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func isCpNotDir(err error) bool {
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return strings.Contains(err.Error(), archive.ErrNotDirectory.Error()) || strings.Contains(err.Error(), "filename, directory name, or volume label syntax is incorrect")
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}
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func isCpCannotCopyDir(err error) bool {
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return strings.Contains(err.Error(), archive.ErrCannotCopyDir.Error())
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}
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func isCpCannotCopyReadOnly(err error) bool {
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return strings.Contains(err.Error(), "marked read-only")
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}
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func isCannotOverwriteNonDirWithDir(err error) bool {
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return strings.Contains(err.Error(), "cannot overwrite non-directory")
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}
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func fileContentEquals(c *check.C, filename, contents string) (err error) {
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c.Logf("checking that file %q contains %q\n", filename, contents)
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fileBytes, err := ioutil.ReadFile(filename)
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if err != nil {
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return
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}
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expectedBytes, err := ioutil.ReadAll(strings.NewReader(contents))
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if err != nil {
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return
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}
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if !bytes.Equal(fileBytes, expectedBytes) {
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err = fmt.Errorf("file content not equal - expected %q, got %q", string(expectedBytes), string(fileBytes))
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}
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return
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}
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func containerStartOutputEquals(c *check.C, cID, contents string) (err error) {
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c.Logf("checking that container %q start output contains %q\n", cID, contents)
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out, err := startContainerGetOutput(c, cID)
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if err != nil {
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return err
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}
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if out != contents {
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err = fmt.Errorf("output contents not equal - expected %q, got %q", contents, out)
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}
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return
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}
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func defaultVolumes(tmpDir string) []string {
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if SameHostDaemon.Condition() {
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return []string{
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"/vol1",
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fmt.Sprintf("%s:/vol2", tmpDir),
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fmt.Sprintf("%s:/vol3", filepath.Join(tmpDir, "vol3")),
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fmt.Sprintf("%s:/vol_ro:ro", filepath.Join(tmpDir, "vol_ro")),
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}
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}
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// Can't bind-mount volumes with separate host daemon.
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return []string{"/vol1", "/vol2", "/vol3", "/vol_ro:/vol_ro:ro"}
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}
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