powershell - 如何真正了解robocopy返回码2

Question

我正在努力处理有时在robocopy期间返回2的部署脚本。命令和输出如下。

它返回2，表示“额外文件”。

总体看来，这是成功的。我应该接受2作为成功吗？

-------------------------------------------------- -----------------------------

ROBOCOPY::Windows的强大文件复制
-------------------------------------------------- -----------------------------

开始时间:2017年1月24日星期二晚上11:53:40
来源:C:\ Download \ Temp \\
目的地:C:\ Inetpub \\

文件:*。*

选项:*。* / S / E / DCOPY:DA / COPY:DAT / PURGE / MIR / MT:8 / R:1000000 / W:30

-------------------------------------------------- ----------------------------

* EXTRA文件689351 C:\ Inetpub \\ admin \ dynamicfile2.zip

-------------------------------------------------- ----------------------------

总计跳过的不匹配的复制失败的额外费用
Dirs:510510 0 0 0 0 0
文件:3564 0 3564 0 0 1
字节:606.15 m 0 606.13 m 0 0 673.1 k
时间:0:00:00 0:00:00 0:00:00 0:00:00
截至:2017年1月24日星期二晚上11:53:40

Answer 1

如有疑问，请阅读documentation(尽管在这种情况下SS64可能是更好的来源):

The following table lists and describes the return codes that are used by the Robocopy utility.

0 No files were copied. No failure was encountered. No files were mismatched. The files already exist in the destination directory; therefore, the copy operation was skipped.
1 All files were copied successfully.
2 There are some additional files in the destination directory that are not present in the source directory. No files were copied.
3 Some files were copied. Additional files were present. No failure was encountered.
5 Some files were copied. Some files were mismatched. No failure was encountered.
6 Additional files and mismatched files exist. No files were copied and no failures were encountered. This means that the files already exist in the destination directory.
7 Files were copied, a file mismatch was present, and additional files were present.
8 Several files did not copy.

Note Any value greater than 8 indicates that there was at least one failure during the copy operation.

退出代码，最多7个(包括7个)指示无错误运行状态。退出代码8及以上表示错误。

就像Mathias已经说过的一样，您是否愿意将多余的文件视为错误取决于您。如果您不关心多余或不匹配的文件/文件夹，只需检查退出代码是否大于7:

& robocopy ...
if ($LastExitCode -gt 7) {
    # an error occurred
    exit $LastExitCode
}
exit 0

否则，请检查退出代码是否大于1:

& robocopy ...
if ($LastExitCode -gt 1) {
    # an error occurred
    exit $LastExitCode
}
exit 0