conda-diff

Command line tool to compare conda environments

Installation

$ conda install -c kdominik -c conda-forge conda-diff

Usage

Usage is still limited.

You can compare environments specified by either

• environment name (will run conda list --json)
• .json files created with conda list --json
• .yaml files created with conda export[^1]

You can two compare different existing conda environments and/or conda lists generated with conda list --json or conda create --json (e.g. from dry-run).

$ conda create -n tmp --dry-run --json -c conda-forge python=3.6 > py36.json
$ conda create -n tmp --dry-run --json -c conda-forge python=3.7 > py37.json
$ conda-diff py36.json py37.json
Diff report for environments py36.json and py37.json:
Common Packages (without diff)
------------------------------
  _libgcc_mutex
  ca-certificates
  libffi
  libgcc-ng
  libstdcxx-ng
  ncurses
  openssl
  readline
  sqlite
  tk
  xz
  zlib
Common Packages (with diff)
---------------------------
  certifi
  pip
  python
  setuptools
  wheel
Packages Only In py36.json:
--------------------------
Packages Only In py37.json:
--------------------------
  bzip2

Increase verbosity to get more detailed output:

$ conda-diff py36.json py37.json -vv
Diff report for environments py36.json and py37.json:
 ... (abbreviated for docs)
Common Packages (with diff)
---------------------------
  certifi
    build_string: py36_1 -> py37_1
    dist_name: certifi-2019.6.16-py36_1 -> certifi-2019.6.16-py37_1
  pip
    build_string: py36_0 -> py37_0
    dist_name: pip-19.2.3-py36_0 -> pip-19.2.3-py37_0
  python
    build_number: 1005 -> 1
    build_string: h357f687_1005 -> h33d41f4_1
    dist_name: python-3.6.7-h357f687_1005 -> python-3.7.3-h33d41f4_1
    version: 3.6.7 -> 3.7.3
  setuptools
    build_string: py36_0 -> py37_0
    dist_name: setuptools-41.2.0-py36_0 -> setuptools-41.2.0-py37_0
  wheel
    build_string: py36_0 -> py37_0
    dist_name: wheel-0.33.6-py36_0 -> wheel-0.33.6-py37_0
Packages Only In py36.json:
--------------------------
Packages Only In py37.json:
--------------------------
  bzip2

Todos:

• add more, better formatters
  • .md output
• add json output
• support pip dependencies
• support missing build strings

[^1]: comparisons with environment.yaml files are limited as these don’t include per-package channel information