Permanent rclone QA Resources

This code generates sample data for testing the SFTP service for Permanent.org. It creates test trees containing files with various pathological names, which are meant to be uploaded to Permanent via rclone using the SFTP protocol.

For more context, see this discussion.

Usage

You would have to install the python requirements used in this repo.

1. python -m venv venv
2. source venv/bin/activate
3. pip install -r requirements.txt

It's possible to just install the requirements on your workspace however steps 1 and 2 would create and activate a virtual environment for this project alone! Recommended!

APOD

Run ./apod-downloader.py to download a set of Astronomy Of The Day photos, in a new directory called test-tree/apod.

Run ./upload-test.py test-tree/apod --archive-path "/archives/rclone QA 1 (0a0j-0000)/My Files/" to try uploading the APOD photos (and some html) all at once to a directory on the server.

NB: The --archive-path argument specifies the route to the the specific permanent archive to which uploads would be made. So how do you get the archive path? See Constructing archive path

That said, the archive path used in the sample command would have to be updated to match some archive created on Permanent.org

Testing scope

The scope of testing via the test cases documented below verifies the possibility of correctly uploading and downloading a defined set of file types in a particular size range to Permanent.org using rclone which talks to permanent using the SFTP service

What file types are tested?

• Text and png images with obscure names generated via generate-tree.py
• Images in .jpg and .png format downloaded from APOD via apod-downloader.py
• Compressed files in .zip and .tar
• Videos in .mp4, .webm, .gifs and .3gp common in mobile devices.
• Executable files in .exe, .run, .sh, .dep and extension-less bin executables.

Test Cases?

Challenging Names

Run ./generate-tree.py to generate test data, which will be placed in a new subdirectory named test-tree/challenging-names.

Then run ./upload-test.py test-tree/challenging-names --archive-path "/archives/rclone QA 1 (0a0j-0000)/My Files/" to try uploading the data (you'll need to configure rclone first, of course). See the long comment at the top of upload-test.sh for information about what it's trying to do and what problems we know about so far.

Duplicates

A duplicate is a file/folder with exactly the same name. Of course this is not possible on regular file systems but Permanent does support it. There is a deduplication algorithm from Permanent that the sftp-service relies to ensure that files with identical names on Permanent won't be be considered as the same on regular file systems.

How test duplicate

• Create a folder in the test archive of the remote (permanent.org or permanent.dev depending on your test target) e.g 'duplicates'.
• Upload at least two copies of multiple identical files into the folder duplicates for example (file.txt, file.txt, file.txt and photo.png, photo.png ...)
• Run the download test script against the duplicate folder. In this case:

`./test-download.py --remote=prod --archive-path "/archives/rclone QA 1 (0a0j-0000)/My Files/" --remote-dir=duplicates`

Expected results

• Check downloads folder in test-tree/downloads and ensure that results looks like:

Result from tree program

├── file (1).txt
├── file (2).txt
├── file.txt
├── Photo (1).png
└── Photo.png

0 directories, 5 files

Multiple Identical Uploads

This test case captures what happens if you sync the same path with unchanged content multiples times.

How test identical uploads

• Generate challenging names if not generated earlier, see Challenging Names

Run ./upload-test.py test-tree/challenging-names --only=414 --remote-dir=test-414 --log-file=log-duplicate-upload.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

Notice the use of the --only flag which specifies only files containing the number 414 should be uploaded, you can change this number to follow a string pattern in the generated challenging names but the provide example works just fine.

Expected results

• rclone should report Sizes identical and Unchanged skipping

2023/03/29 14:54:00 DEBUG : 002-dupe-test.txt: Sizes identical
2023/03/29 14:54:00 DEBUG : 002-dupe-test.txt: Unchanged skipping

• No duplicates should be be seen on Permanent UI.

Uploads

Large uploads

To test large file (400MB +) uploads, a couple of large files are required. Some ready-made test files can be downloaded via:

./special-files-downloader.py --large

If you have your own large files or other kinds of files you would like to run tests with, you can list the links to those files in a text file like so:

'my_files.txt'

https://link.com/to/file_1.extension
https://link.com/to/file_2.extension
https://link.com/to/file_3.extension

and then run ./special-files-downloader.py --my-source my_files.txt

• You can specify as many paths as you want inside the file
• You can name the the source text file anything you want but pass the right name and path to --my-source

You don't need to download any files if you already have some special files on your computer, simply copy such files into one of these directories test-tree/special-files/, test-tree/special-files/large, test-tree/special-files/zips, or test-tree/special-files/custom

Once the files are on disk:

Run ./upload-test.py test-tree/special-files/large --remote-dir=large-files --log-file=log-large-files.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

Nested folders/files

Nested uploads

We have a default nest of folders that goes down 4 levels.

Run ./upload-test.py test-tree/misc/nested/ --remote-dir=nested --log-file=log-nested.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

Verify in the Permanent UI that the folder set to remote dir --remote-dir in this case nested contains the nested folder with the following structure.

Result from tree program

test-tree/misc/nested/
├── nested-level-1
│   ├── nested-level-2
│   │   ├── nested-level-3
│   │   │   └── record-level-3.txt
│   │   └── record-level-2.txt
│   └── record-level-1.txt
└── record-level-0.txt

To test a nest with more levels, simply paste a nested folder structure inside test-tree/misc/nested or manually create more folder levels in the existing nest.

Nested folders with one leaf-file

In this case we test the scenario where a series of folders are empty until the last folder down the tree which contains a single file.

Run ./upload-test.py test-tree/misc/nested-folders-with-one-leaf/ --remote-dir=nested-folders-with-one-leaf --log-file=log-nested-one-leaf.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

Again, verify in the Permanent UI that the folder set to remote dir --remote-dir in this case nested-folders-with-one-leaf has the following structure.

Result from tree program

test-tree/misc/nested-folders-with-one-leaf/
└── nested-level-1
    └── nested-level-2
        └── nested-level-3
            └── leaf.txt

Nested downloads

The steps in the upload section above must be completed before this step

Run

./test-download.py --remote=prod --archive-path="/archives/rclone QA 1 (0a21-0000)/My Files/" --remote-dir=nested

Check the downloads folder in test-tree/downloads and ensure that the downloads/nested directory has a structure like the nested directory uploaded in the nested uploads test.

Quantity Tests

To test uploads/downloads with a large number of files, we definitely need "a large number" of files on either side (local/remote) of the process.

To generate a number of files with a specific size in test-tree/special-files, run ./create-files.py --quantity 10 --size 10000 --root-name "10-10B" (In this case, the command would generate 10, 10 bytes files.)

Take note that in the command --quantity, --size and --root-name are arguments whose values you can change. Quanity for number of files, size for file zie and root name for the name of the parent folder that would hold the files

Large number of uploads

For 1000, 1B Files:

• Run ./create-files.py

• Run ./upload-test.py test-tree/special-files/1000-1B --remote-dir=1000-10B --log-file=log-1000-1B.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

For 1000, 10B Files:

• Run ./create-files.py --quantity 1000 --size 10000 --root-name "1000-10B"

• Run ./upload-test.py test-tree/special-files/1000-10B --remote-dir=1000-10B --log-file=log-1000-10B.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

For 1000, 1MB Files:

• Run ./create-files.py --quantity 1000 --size 1000000 --root-name "1000-1MB"

• Run ./upload-test.py test-tree/special-files/1000-1MB --remote-dir=1000-1MB --log-file=log-1000-1MB.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

For 1000, 5MB Files:

• Run ./create-files.py --quantity 1000 --size 5000000 --root-name "1000-5MB"

• Run ./upload-test.py test-tree/special-files/1000-5MB --remote-dir=1000-5MB --log-file=log-1000-5MB.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

Of course, by looking at the pattern above, other number-size arrangements can be generated for further testing.

Variety of file types/sizes

Prepare data variety

To test uploads with a variety of file types/sizes, unzip the files archive in /test-tree/misc/variety/files.zip into same directory /test-tree/misc/variety/

• Unzip : unzip ./test-tree/misc/variety/files.zip -d ./test-tree/misc/variety

Otherwise

You can add your own files in the range of a few kilo bytes to about 50 mega bytes in the same location (/test-tree/misc/variety/files).

Ideally, a few images (.png, .jpg), document files (.docx, .ppt, .xlxs), video and sound files, and archive files.

Duplicate data

Once you have the files in place, you duplicate the files to achieve a desire volume using the duplication script described in the next section.

The ./duplicate-files script is designed to create multiple copies of files in a specified source directory. It allows you to make 'n' copies of each file found in the source directory and save them in either the same directory or a different destination directory.

Usage: ./duplicate-files <source_path> <n> <destination_path (optional)>

• Create a duplication by 10 duplicate-files ./test-tree/misc/variety/files 10

*You can change the number to reduce or increase the number of files and consequently the resulting size.

Variety upload test

Now you can test uploads with the variety of files set up in ./test-tree/variety

• Run ./upload-test.py test-tree/misc/variety/files --remote-dir=variety --log-file=variety.txt --remote=prod --archive-path="/archives/QA (0a21-0000)/My Files/"

Large number of downloads

What file types and scenarios are left out?

Anything not included in the section above describing what is currently covered is by implication excluded from these tests.

Troubleshooting

• Remember that the commands are examples and some of the arguments may not apply to your specific environment.
  • For example ensure that arguments such as --remote, --archive-path are updated and correct

Web Interface

For prod, just go to the site as per usual. For dev, go to https://dev.permanent.org/app and then log in.

License

This code and data is open source under the MIT license.