GauthamBanasandra opened a new pull request, #4145:
URL: https://github.com/apache/hadoop/pull/4145
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### Description of PR
The source files for `hdfs_stat` uses `getopt` for parsing the command line
arguments. getopt is available only on Linux and thus, isn't cross platform. We
need to replace getopt with `boost::program_options` to make this tool cross
platform.
### How was this patch tested?
# hdfs_stat
This tool was testing locally with the Hadoop cluster setup in
pseudo-distributed mode.
I ran the tool by providing the path to a file as the argument.
```bash
$ ./hdfs_stat ~/some-dir/some-data.txt
```
I verified the output against the information displayed in the UI.
I then ran the tool by providing the path to a directory as the argument.
```bash
$ ./hdfs_stat ~/some-dir
```
I verified the output against the information displayed in the UI.
I then ran the tool by providing a non-existent path as the argument.
```bash
$ ./hdfs_stat ~/some-non-existent-path
```
We note that an appropriate error message is reported in the above output.
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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