Depot

Find newer versions of your dependencies in your deps.edn file using the Clojure CLI. This works for maven and git dependencies.

Usage

You can try it out easily with this one liner:

$ clojure -Sdeps '{:deps {olical/depot {:mvn/version "1.8.0"}}}' -m depot.outdated.main

|          Dependency | Current | Latest |
|---------------------|---------|--------|
| org.clojure/clojure |   1.9.0 |  1.10.0 |

I'd recommend adding depot as an alias in your own deps.edn file, this will allow it to check itself for updates:

Note: Replace the ellipsis with the current version shown above.

{:deps {}
 :aliases {:outdated {:extra-deps {olical/depot {:mvn/version "..."}}
                      :main-opts ["-m" "depot.outdated.main"]}}}

$ clojure -Aoutdated -a outdated

|   Dependency | Current | Latest |
|--------------|---------|--------|
| olical/depot |   ..... |  ..... |

Updating deps.edn

To automatically update the versions in deps.edn, use --update.

$ clojure -m depot.outdated.main --update
Updating: deps.edn
  rewrite-clj {:mvn/version "0.6.0"} -> {:mvn/version "0.6.1"}
  cider/cider-nrepl {:mvn/version "0.17.0"} -> {:mvn/version "0.18.0"}
  clj-time {:mvn/version "0.14.4"} -> {:mvn/version "0.15.1"}
  olical/cljs-test-runner {:sha "5a18d41648d5c3a64632b5fec07734d32cca7671"} -> {:sha "da9710b389782d4637ef114176f6e741225e16f0"}

This will leave any formatting, whitespace, and comments intact. It will update both the top level deps and any :aliases / :extra-deps. To prevent Depot from touching certain parts of your deps.edn, mark them with the ^:depot/ignore metadata.

{:deps {...}

 :aliases
 {;; used for testing against older versions of Clojure
  :clojure-1.8 ^:depot/ignore {:extra-deps
                               {org.clojure/clojure {:mvn/version "1.8.0"}}}
  :clojure-1.9 ^:depot/ignore {:extra-deps
                               {org.clojure/clojure {:mvn/version "1.9.0"}}}}}

--update by default looks for deps.edn in the current working directory. You can instead pass one or more filenames in explicitly.

$ clojure -m depot.outdated.main --update ../my-project/deps.edn

Freezing snapshots

Maven has a concept called "virtual" versions, these are similar to Git branches, they are pointers to another version, and the version they point to can change over time. The best known example are snapshot releases. When your deps.edn refers to a version 0.4.1-SNAPSHOT, the version that actually gets installed will look like 0.4.1-20190222.154954-1.

A maintainer can publish as many snapshots as they like, all with the same version string. This means that re-running the same code twice might yield different results, if in the meanwhile a new snapshot was released. So installing 0.4.1-SNAPSHOT again later on may install a completely different version.

For the sake of stability and reproducibility it may be desirable to "lock" this version. This is what the --resolve-virtual flag is for. The --resolve-virtual flag will replace the snapshot version with the current timestamped version that the SNAPSHOT is an alias of, so that your code is once again deterministic.

Besides SNAPSHOT versions --resolve-virtual will also handle the special version strings "RELEASE" and "LATEST"

% clojure -Sdeps '{:deps {olical/depot {:local/root "/home/arne/github/depot"}}}' -m depot.outdated.main --resolve-virtual
Resolving: deps.edn
   cider/piggieback 0.4.1-SNAPSHOT --> 0.4.1-20190222.154954-1

Existing work

This project is inspired by lein-ancient, it relies on version-clj (by the same author, xsc) for parsing and comparison of version numbers.

Contributors

• @Olical - Initial work and general maintenance.
• @seancorfield - Support for :override-deps.
• @robert-stuttaford - Presenting results in a neat table.
• @kennyjwilli - Git dependency support and table improvements.
• @plexus - Both the --update and --resolve-virtual systems, so many improvements!
• @daaku - Ensuring :override-deps is adhered to in the non-mutating mode.
• @lverns - Reducing the runtime significantly by making multiple requests in parallel.

Unlicenced

Find the full unlicense in the UNLICENSE file, but here's a snippet.

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

Do what you want. Learn as much as you can. Unlicense more software.