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Get zprint for Linux

There exists a pre-built binary for Linux which does not require Java, and starts up in <50ms.

1. Go to the latest release for zprint

You can find the latest release here.

2. Download zprintl from the above directory

The Linux pre-built binary is named zprintl-0.x.y, where x.y varies. Click on this to download it.

3. Name zprint whatever you want

The downloaded version of zprintl always has the version in the name. You may wish to name it something different so that any scripts that you have will use the new version without requiring a change. We will assume that you have renamed it zprint.

mv zprintl-1.2.9 zprint

Note that you can always find the version of zprintl (no matter what you called it), by giving it the -v switch:

./zprint -v
zprint-1.2.9

3. Put zprint into a directory in your path

To be able to run zprint it needs to be in a directory that appears in your path.

4. Test it with --explain-all

zprint --explain-all
{:agent {:object? false},
 :array {:hex? false, :indent 1, :object? false, :wrap? true},
 :atom {:object? false},
 :binding {:flow? false,
           :force-nl? false,
           :hang-diff 1,
           :hang-expand 2.0,
           :hang? true,
           :indent 2,
           :justify? false,
           :nl-separator? false},
[...]

The --explain-all switch will output the configuration zprint will use when run. For any values that are not the default, this will include where that value came from (for instance, if you set something in your ~/.zprintrc, that information will appear in the --explain-all output). If you run zprint --explain-all, it should output a very large map showing all of the configuration options and their current values. Toward the end, it will include a key :version which should be the version that you just downloaded.

If you use the -e switch, you will see just the configuration options that are different from the defaults, if any:

5. Try it

The zprint program you have installed will accept Clojure source on stdin and produce formatted Clojure source on stdout. It will also accept an options map on the command line. Note the need for single quotes around any options map value that you specify.

zprint '{:width 90}' < myfile.clj

This will output a formatted version of myfile.clj to the controlling terminal, fit into 90 (instead of the default 80) columns of output.