pass "git describe" output to Java code

Question

Is there a way to pass the output of git describe --tag to my Java application at compile time? I'd like to use that in my about box to display version info. I'm using Eclipse to build, but I can use ant if necessary.

With C code, I can pass -D'REV="$(shell git describe --tag)"' to my gcc compiler, and my code can pick that up. I'm hoping there's something similar in Java.

@Dustin: It looks like a valid compiler option for gcc.

trashgod
– trashgod

2011-07-07 04:45:48 +00:00
Commented Jul 7, 2011 at 4:45 — trashgod
– trashgod, Commented Jul 7, 2011 at 4:45

trashgod · Accepted Answer · 2011-07-07 05:12:54Z

1

If ant is acceptable, it supports a similar command line option.

As a concrete example, this line in an ant script

<echo>property: ${property}</echo>

when invoked with the following command,

$ ant -Dproperty="$(git --version)"

produces the following output on the console,

[echo] property: git version 1.7.5.4

edited Jul 7, 2011 at 5:12

answered Jul 7, 2011 at 4:55

trashgod

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2 Comments

Ravi Over a year ago

Looks like a good solution. That would allow me to use System.getProperty to read the -D value?

trashgod Over a year ago

Not directly; using the example above, you could add the value named property to your java task as a runtime parameter.

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