Extract Git info at build time only if possible #273
Merged
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The build system tries to extract some Git build details (e.g. branch and SHA). The problem is that it assumes that both
gitis installed, and that the sources are in a Git repository: while this is true during a Git build, they are both not true when building from release tarballs (e.g. as done by distributions).Hence, manually search for
gitand that the current sources are a Git repository:.tagfor the SHA, setting the value for the branch as well to it