https://github.com/audy/tbl2asn-forever

Use tbl2asn forever by pretending that it's still 2019
https://github.com/audy/tbl2asn-forever

Last synced: about 21 hours ago
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Use tbl2asn forever by pretending that it's still 2019

• Host: GitHub
• URL: https://github.com/audy/tbl2asn-forever
• Owner: audy
• License: mit
• Created: 2020-01-22T19:18:57.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-01-24T18:27:48.000Z (over 4 years ago)
• Last Synced: 2023-10-20T17:57:04.711Z (12 months ago)
• Language: Dockerfile
• Homepage:
• Size: 7.81 KB
• Stars: 10
• Watchers: 3
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE.md

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README

        
# tbl2asn-forever

Proof of concept for tricking the infamous `tbl2asn` into thinking that it's

less than a year old:

Replace `/usr/bin/tbl2asn` with a shell script that temporarily modifies the

system time using [libefaketime](https://github.com/wolfcw/libfaketime) while

running the real `tbl2asn`

Building this `Dockerfile` demonstrates that you can run a `tbl2asn` binary

that is [more than a year old](https://anaconda.org/bioconda/tbl2asn/files)

without an error message.

`docker build --tag tbl2asn .` will run `tbl2asn` with and without faking the

time. You should only see an error message printed to /dev/stderr on the first

invokation.

The magic happens here:

```sh

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1 \

  FAKETIME="2019-01-01 00:00:01" \

  /usr/bin/real-tbl2asn $*

```

Currently, the Docker image will be built with tbl2asn version `25.6-3`

## Credit

Thanks to [@milot-mirdita](https://github.com/milot-mirdita) for showing me how to time travel with libfaketime.