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Backup/Restore a dockerized PostgreSQL database
..._USER=${DB_USER}
- POSTGRES_PASSWORD=${DB_PASSWORD}
- POSTGRES_EXTRA_OPTS=-Z9 --schema=public --blobs
- SCHEDULE=@every 0h30m00s
- BACKUP_KEEP_DAYS=7
- BACKUP_KEEP_WEEKS=4
- BACKUP_KEEP_MONTHS=6
- HEALTHCHECK_PORT=81
...
Peak-finding algorithm for Python/SciPy
...ers width, threshold, distance and above all prominence to get a good peak extraction.
According to my tests and the documentation, the concept of prominence is "the useful concept" to keep the good peaks, and discard the noisy peaks.
What is (topographic) prominence? It is "the minimum height nec...
Remove the last character from a string [duplicate]
What is fastest way to remove the last character from a string?
4 Answers
4
...
Android - Launcher Icon Size
...ractices/screens_support.html. Search on the page for, "180x180 (3.0x) for extra-extra-high-density". However, I've seen 144 a few places.
– 1.21 gigawatts
Jan 25 '15 at 5:13
...
Using Java 8's Optional with Stream::flatMap
...de() {
return optional.hashCode();
}
@Override
public String toString() {
return optional.toString();
}
}
You will see that I added flatStream(), as here:
public Stream<T> flatStream() {
if (!optional.isPresent()) {
return Stream.empty();
}
...
C# Events and Thread Safety
...ith every event - aka boilerplate code!
public event Action<thisClass, string> Some;
protected virtual void DoSomeEvent(string someValue)
{
var e = Some; // avoid race condition here!
if(null != e) // avoid null condition here!
e(this, someValue);
}
2 - the race condition issue) ...
Download a file with Android, and showing the progress in a ProgressDialog
...fy the UI thread from here
private class DownloadTask extends AsyncTask<String, Integer, String> {
private Context context;
private PowerManager.WakeLock mWakeLock;
public DownloadTask(Context context) {
this.context = context;
}
@Override
protected String do...
How do I directly modify a Google Chrome Extension File? (.CRX)
...w.
2.) The sub folder containing the extension is a random alpha-numeric string named after the extension's ID, which can be found on Chrome's extension page if Developer flag is set to true. (Upper right hand checkbox on the extensions page)
...
How do I edit an existing tag message in git?
...
> }' | # extract all the dates from the info
> tail -2 | head -1)" `# get the second to last date, as the last one is the commit date` \
> git tag tag1 tag1^{} -a -f ...
How to schedule a function to run every hour on Flask?
...h curl)
I like this in that it's easy to test the job manually, it has no extra dependencies and as there isn't anything special going on it is easy to understand.
Security
If you'd like to password protect your cron job, you can pip install Flask-BasicAuth, and then add the credentials to your a...