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author | Benedikt Peetz <benedikt.peetz@b-peetz.de> | 2024-10-18 17:07:46 +0200 |
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committer | Benedikt Peetz <benedikt.peetz@b-peetz.de> | 2024-10-18 17:07:46 +0200 |
commit | c52c7f314ccadcc2fcd91e28c8fd1b88f6d5ce0c (patch) | |
tree | e8b947710b467b32740598ff574982097836f66c /modules/home.legacy/conf/firefox/scripts/unzip_mozlz4.py | |
parent | chore(pkgs/yt): 1.2.1 -> 1.3.0 (diff) | |
download | nixos-config-c52c7f314ccadcc2fcd91e28c8fd1b88f6d5ce0c.zip |
refactor(modules): Move all system modules to `by-name`
From now on all modules should be added to the new `by-name` directory. This should help remove the (superficial and utterly useless) distinction between `home-manager` and `NixOS` modules.
Diffstat (limited to 'modules/home.legacy/conf/firefox/scripts/unzip_mozlz4.py')
-rwxr-xr-x | modules/home.legacy/conf/firefox/scripts/unzip_mozlz4.py | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/modules/home.legacy/conf/firefox/scripts/unzip_mozlz4.py b/modules/home.legacy/conf/firefox/scripts/unzip_mozlz4.py new file mode 100755 index 00000000..9a2348bf --- /dev/null +++ b/modules/home.legacy/conf/firefox/scripts/unzip_mozlz4.py @@ -0,0 +1,44 @@ +#!/usr/bin/env python +# source: https://unix.stackexchange.com/a/497861 +# Command-line tool to decompress mozLz4 files used for example by Firefox to store various kinds of session backup information. +# Works in both Python 2.7.15 and 3.6.7, as of version 2.1.6 of the LZ4 Python bindings at pypi.org/project/lz4. +# To use in another script, simply cut and paste the import statement and the mozlz4_to_text() function (lines 8 to 17). + +import lz4.block # pip install lz4 --user + + +def mozlz4_to_text(filepath): + # Given the path to a "mozlz4", "jsonlz4", "baklz4" etc. file, + # return the uncompressed text. + bytestream = open(filepath, "rb") + bytestream.read(8) # skip past the b"mozLz40\0" header + valid_bytes = bytestream.read() + text = lz4.block.decompress(valid_bytes) + return text + + +def main(args): + # Given command-line arguments of an input filepath for a ".mozlz4" file + # and optionally an output filepath, write the decompressed text to the + # output filepath. + # Default output filepath is the input filepath minus the last three characters + # (e.g. "foo.jsonlz4" becomes "foo.json") + filepath_in = args[0] + if len(args) < 2: + filepath_out = filepath_in[:-3] + else: + filepath_out = args[1] + text = mozlz4_to_text(filepath_in) + with open(filepath_out, "wb") as outfile: + outfile.write(text) + print("Wrote decompressed text to {}".format(filepath_out)) + + +if __name__ == "__main__": + import sys + + args = sys.argv[1:] + if args and args[0] not in ("--help", "-h"): + main(args) + else: + print("Usage: mozlz4.py <mozlz4 file to read> <location to write>") |