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How to deal with persistent storage (e.g. databases) in Docker
...kup: bind mount the current directory into the container; to write the tar file to
busybox: a small simpler image - good for quick maintenance
tar cvf /backup/backup.tar /data: creates an uncompressed tar file of all the files in the /data directory
RESTORE:
# Create a new data container
$ sudo d...
How to permanently remove few commits from remote branch
...e last 3 commits, run the following command to remove the changes from the file system (working tree) and commit history (index) on your local branch:
git reset --hard HEAD~3
Then run the following command (on your local machine) to force the remote branch to rewrite its history:
git push --forc...
Python ElementTree module: How to ignore the namespace of XML files to locate matching element when
...t to use the method of "findall" to locate some elements of the source xml file in the ElementTree module.
10 Answers
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...adds:
As a historical note, the function now known as repo_read_object_file() was taught the empty tree in 346245a1bb ("hard-code the empty tree object", 2008-02-13, Git v1.5.5-rc0 -- merge), and the function now known as oid_object_info() was taught the empty tree in c4d9986f5f ("sha1_object_in...
How to export JavaScript array info to csv (on client side)?
...n use JavaScript's window.open and encodeURI functions to download the CSV file like so:
var encodedUri = encodeURI(csvContent);
window.open(encodedUri);
Edit: If you want to give your file a specific name, you have to do things a little differently since this is not supported accessing a data UR...
How to remove folders with a certain name
...
{} can be read as "for each matching file/ folder" - i.e. it substitutes for each "found" file/ folder. \; is a terminator for the -exec clause.
– wmorrison365
Mar 28 '19 at 14:18
...
How to “set a breakpoint in malloc_error_break to debug”
...dule). The cause of the issue for me was that I had a UIImage backed by a file, and I was overwriting the file with a different image. This caused an error when I called UIImagePNGRepresentation on the original image (not when the file was actually overwritten).
– Robert
...
Argparse: Required arguments listed under “optional arguments”?
...rser(description='Foo')
parser.add_argument('-o', '--output', help='Output file name', default='stdout')
requiredNamed = parser.add_argument_group('required named arguments')
requiredNamed.add_argument('-i', '--input', help='Input file name', required=True)
parser.parse_args(['-h'])
usage: [-h] ...
How can I remove a trailing newline?
...for Universal newlines (only when reading, not when writing). You open the file in either "U" or "rU" mode, and then regardless of Windows, Linux, Mac, whatever, by the time the text reaches your python code, any style of newline has been replaced with "\n". See: python.org/dev/peps/pep-0278
...
How can I change the file type association of an existing file in WebStorm?
I accidentally created a file with no extension and I chose the wrong file type association. Text Document I think. I renamed it to have the .js extension which is what I wanted, but now it's stuck without any syntax highlighting. WebStorm doesn't treat it as a javascript file. I can't find anyw...