-ldflags -X

[Eric Brown]

Using -ldflags -X, is there a way to set the internal value as the output of an executable console file?

I've seen examples like this:

"-X main.githash=`git rev-parse HEAD`" (which would put the result of the git command w/ flags into it)

however, I just can't get it to work (if it's even possible).

The file I use is called setVersion.exe and does all the formatting, etc. for me (which includes connecting to a ntp atomic time server for the time stamp, etc.).

What I'm using is (setVersion being included in the PATH environment):

go build -ldflags "-X 'main.versionBuild=setVersion'"

I've tried putting the quotations in different places, etc.  Nothing I try is working.

[Eric Brown]

Got it to work as intended under Linux; however, compiling on Windows is a no-go.  Perhaps I have to create a script, pass the output to a variable, and insert the variable into the build command?  Hopefully not, so if anybody has any suggestions... it would be highly appreciated.  Thanks!

[Arafath M]

Hi Eric,

Under Windows, create a bat file with following contents. It uses latest tag from git repo as version.

echo Rebuilding App...

for /f %%i in ('git describe --tags ') do set version=%%i

go install -a -v -ldflags "-X main.versionBuild=%version%"

Sincerely,

Arafath M

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[Eric Brown]

Arafath, that's kind of what I did (except I replaced the git command with my setversion.exe). It worked as expected... thank you!

Sincerely,

Arafath M

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