Kinda silly question, but I used Activator to get started with the play framework, and now need to see what version I'm using. 2.3 came out with support for docker, but when I put
dockerExposedPorts in Docker := Seq(9000, 9443)
in my build.sbt
, it complains it doesn't know what dockerExposedPorts is, so I'm thinking I might be running 2.2.
Type playVersion
within the activator console.
Alternatively you can look in project/plugins.sbt
for the line
addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.3.2")
In this example, the play version is 2.3.2
I use the following to list and highlight all play versions in a play project. Works for a multi-module project as well.
The following was tested on macOS Sierra using the default BSD find
that it comes with and GNU grep installed via brew install grep
. The latter is required since the following command requires a grep that supports Perl regex (which BSD grep does not).
You can check if the grep on your PATH has Perl-regex support by doing this (should show that the -P
option is available):
$ ggrep --help | grep -i Perl -P, --perl-regexp PATTERN is a Perl regular expression
(ggrep is the GNU grep installed via Homebrew)
And now, on to the actual command (note the ggrep in the command):
$ find . -name "plugins.sbt" -exec ggrep -PHin --color=always 'com.typesafe.play.*sbt-plugin.*%\s*"\K.*?(?=")' {} \;
which outputs:
Quick notes about the grep options (extracted from grep help):
-P, --perl-regexp PATTERN is a Perl regular expression -i, --ignore-case ignore case distinctions -n, --line-number print line number with output lines -H, --with-filename print file name with output lines
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