Pulls (filtered) files from S3 and adds them to a tar archive.
Project description
s3tar
Pulls (filtered) files from S3 and adds them to a tar archive.
Creates the command line script star
.
$ star --help
Usage: star [OPTIONS] PATH
Generates a tar archive of S3 files.
Files are selected by a path made up of 'bucket/prefix' and optionaly by a
time-based and/or name filter.
'profile' is the AWS CLI profile to use for accessing S3. If you use
chaim or cca then this is the alias name for the account.
The time based filter relies on the files being named with ISO Formatted
dates and times embedded in the file names. i.e.
'file.2020-03-04T12:32:21.txt' The regular expression used is:
/.*[._-]{1}([0-9-]{10}T[0-9:]{8}).*/
The 'start' and 'end' parameters can either be ISO formatted date strings
or unix timestamps. If only the date portion of the date/time string is
given the time defaults to midnight of that day.
The length parameter is a string of the form '3h', '2d', '1w' for,
respectively 3 hours, 2 days or 1 week. Only hours, days or weeks are
supported. The 'length' and 'end' parameters are mutually exclusive, give
one or the other, not both.
If neither the 'end' nor the 'length' parameter is given, the end time
defaults to 'now'.
If the 'start' parameter is not given no time filtering of the files is
performed, and all files found down the path are copied across to the tar
archive recursively.
To use the last modified time stamp of the files rather than their names
for filtering pass the '-M' flag.
To use the name filter, pass in a partial string that object names must
contain.
The tar archive can be compressed using gzip, bzip2 or lzma. Defaults to
gzip. Pass a one char string to the `-c` option of "g", "b", "z" or "n".
"n" is no compression. The output tar archive will be named accordingly:
".tar.gz" for gzip, ".tar.bz2" for bzip2, ".tar.xz" for lzma and ".tar"
for no compression.
The output filename of the tar archive will be $HOME/<bucket name>.tar
You can change this with the "-o" option.
Using the "-q" switch will turn off all messages (except errors) apart
from the final output of the full path of the tar archive that is created.
Using the "-v" switch will make the program verbose, showing each file
that is copied into the tar archive.
Files in Glacier and Glacier Deep Archive are ignored.
Options:
-c, --compression TEXT optional compression ['b', 'g', 'n', 'z'], default
'g'
-e, --end TEXT optional end time
-l, --length TEXT optional time length (i.e. 1d, 3h, 4w)
-M, --usemodified use last modified time stamp rather than filename
for filtering
-N, --name TEXT optional name filter
-o, --output TEXT output file name (default: bucket name)
-p, --profile TEXT AWS CLI profile to use (chaim alias)
-q, --quiet be very quiet, only show the tar file name
-s, --start TEXT optional start time
-v, --verbose show files that are being copied
--help Show this message and exit.
Install
The script is python3 only (>=python3.6).
Install it under your python3 user directories with:
python3 -m pip install s3tar --user
If this is the first python3 user script you have you will have to adjust
your path. The script location will be $HOME/.local/bin
on a Linux
machine, so add that to you path in your shell init file e.g.
echo "export PATH=$HOME/.local/bin:$PATH" >>~/.bashrc
If your shell is bash.
To check that installed ok:
star --help
Should display the help text.
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