0_j2cli_layout

dr-xr-xr-x    - abathur 31 Dec  1969 /nix/store/p0876isrv4gi1pbfkc6bms737grzwjlj-python3.8-j2cli-0.3.10
dr-xr-xr-x    - abathur 31 Dec  1969 ├── bin
.r-xr-xr-x  964 abathur 31 Dec  1969 │  ├── .j2-wrapped
.r-xr-xr-x  371 abathur 31 Dec  1969 │  └── j2
dr-xr-xr-x    - abathur 31 Dec  1969 ├── lib
dr-xr-xr-x    - abathur 31 Dec  1969 │  └── python3.8
dr-xr-xr-x    - abathur 31 Dec  1969 │     └── site-packages
dr-xr-xr-x    - abathur 31 Dec  1969 │        ├── j2cli
.r--r--r--  261 abathur 31 Dec  1969 │        │  ├── __init__.py
dr-xr-xr-x    - abathur 31 Dec  1969 │        │  ├── __pycache__
.r--r--r--  469 abathur 31 Dec  1969 │        │  │  ├── __init__.cpython-38.pyc
.r--r--r-- 7.1k abathur 31 Dec  1969 │        │  │  ├── cli.cpython-38.pyc
.r--r--r-- 4.3k abathur 31 Dec  1969 │        │  │  └── context.cpython-38.pyc
.r--r--r-- 7.0k abathur 31 Dec  1969 │        │  ├── cli.py
.r--r--r-- 4.3k abathur 31 Dec  1969 │        │  ├── context.py
dr-xr-xr-x    - abathur 31 Dec  1969 │        │  └── extras
.r--r--r--   22 abathur 31 Dec  1969 │        │     ├── __init__.py
dr-xr-xr-x    - abathur 31 Dec  1969 │        │     ├── __pycache__
.r--r--r--  242 abathur 31 Dec  1969 │        │     │  ├── __init__.cpython-38.pyc
.r--r--r-- 1.8k abathur 31 Dec  1969 │        │     │  ├── customize.cpython-38.pyc
.r--r--r-- 2.2k abathur 31 Dec  1969 │        │     │  └── filters.cpython-38.pyc
.r--r--r--  980 abathur 31 Dec  1969 │        │     ├── customize.py
.r--r--r-- 2.1k abathur 31 Dec  1969 │        │     └── filters.py
dr-xr-xr-x    - abathur 31 Dec  1969 │        └── j2cli-0.3.10.dist-info
.r--r--r--  141 abathur 31 Dec  1969 │           ├── direct_url.json
.r--r--r--   35 abathur 31 Dec  1969 │           ├── entry_points.txt
.r--r--r--    4 abathur 31 Dec  1969 │           ├── INSTALLER
.r--r--r-- 1.3k abathur 31 Dec  1969 │           ├── LICENSE
.r--r--r-- 1.3k abathur 31 Dec  1969 │           ├── METADATA
.r--r--r-- 1.6k abathur 31 Dec  1969 │           ├── RECORD
.r--r--r--    0 abathur 31 Dec  1969 │           ├── REQUESTED
.r--r--r--    6 abathur 31 Dec  1969 │           ├── top_level.txt
.r--r--r--  110 abathur 31 Dec  1969 │           └── WHEEL
dr-xr-xr-x    - abathur 31 Dec  1969 └── nix-support
.r--r--r--  265 abathur 31 Dec  1969    └── propagated-build-inputs

1_j2

#! /nix/store/pcjan45rssdn01cxx3sjg70avjg6c3ni-bash-4.4-p23/bin/bash -e
export PATH='/nix/store/p6k14ihyfaq3z4sycxr09cvgpis2zjd5-python3-3.8.9/bin:/nix/store/p0876isrv4gi1pbfkc6bms737grzwjlj-python3.8-j2cli-0.3.10/bin'${PATH:+':'}$PATH
export PYTHONNOUSERSITE='true'
exec -a "$0" "/nix/store/p0876isrv4gi1pbfkc6bms737grzwjlj-python3.8-j2cli-0.3.10/bin/.j2-wrapped"  "$@"

2_.j2-wrapped

#!/nix/store/p6k14ihyfaq3z4sycxr09cvgpis2zjd5-python3-3.8.9/bin/python3.8
# -*- coding: utf-8 -*-
import sys;import site;import functools;sys.argv[0] = '/nix/store/p0876isrv4gi1pbfkc6bms737grzwjlj-python3.8-j2cli-0.3.10/bin/j2';functools.reduce(lambda k, p: site.addsitedir(p, k), ['/nix/store/p0876isrv4gi1pbfkc6bms737grzwjlj-python3.8-j2cli-0.3.10/lib/python3.8/site-packages','/nix/store/30r4qr29lx510a5fg76g4y4n30nr4jib-python3.8-Jinja2-2.11.3/lib/python3.8/site-packages','/nix/store/hr6l066m6mcmlbfciibvzrg9x5bxrli9-python3.8-MarkupSafe-1.1.1/lib/python3.8/site-packages','/nix/store/h9832pvm0airim7nfc5n7xvqqb7hzl24-python3.8-setuptools-54.2.0/lib/python3.8/site-packages','/nix/store/m5c9aaqbj3x4qmx6l7am6ml4lcf9d3iq-python3.8-PyYAML-5.4.1/lib/python3.8/site-packages'], site._init_pathinfo());
import re
import sys
from j2cli import main
if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
    sys.exit(main())

3_default.nix

{ lib
, buildPythonPackage
, fetchPypi
, jinja2
, pyyaml
, setuptools
}:

buildPythonPackage rec {
  pname = "j2cli";
  version = "0.3.10";

  src = fetchPypi {
    inherit pname version;
    sha256 = "6f6f643b3fa5c0f72fbe9f07e246f8e138052b9f689e14c7c64d582c59709ae4";
  };

  doCheck = false; # tests aren't installed thus aren't found, so skip
  propagatedBuildInputs = [ jinja2 pyyaml setuptools ];

  meta = with lib; {
    homepage = "https://github.com/kolypto/j2cli";
    description = "Jinja2 Command-Line Tool";
    license = licenses.bsd2;
    longDescription = ''
      J2Cli is a command-line tool for templating in shell-scripts,
      leveraging the Jinja2 library.
    '';
    maintainers = with maintainers; [ rushmorem SuperSandro2000 ];
  };

}