This small program will generate a file named gitversion.go when it is run in a directory with git support.

The file gitversion.go will have "package main" at the top, so it will be part of the main package automaticaly.

The only content of the generated "giversion.go" file is a constant Version The constant is a string consisting of the latest tag when no changes are commited after the tagged commit.

It the tag is not on the latest commit, the number of commits is added, together with the hash. If local changes are present after the commit, the -dirty string is added.

Example:

package main

// Version is extracted from the latest tag in the git repository
const Version="V0.1-107-gce0a8d27-dirty"

To use this program, run

go install github.com/jkvatne/version@latest

And ensure that the exe file created is available in the path. It is recommended to exclude the file "gitversion.go" from the repo, since it is regenerated each time you build the exe file. This will immediately make the repo dirty again, unless the file is excluded.

In the Goland IDE, to run it automatically before building the exe file:

• Edit the settings with Ctrl-Alt-S, Tools, External Tools, then click '+'
• Set name and description. Set Program to 'version.exe', and click OK
• Set working directory to '$ProjectFileDir$'
• Edit the run configuration(s)
• At the bottom, in the 'Before launch' list, click '+'
• Select 'Run external tool' and select the tool you added (version).")To run the program in Goland automaticaly for each build, add an external tool named version.exe in the run configuration,

(C)Jan Kåre Vatne 2024 ([email protected])