wrap: Raise MesonException when git command fails

This avoid printing long backtrace by default, the user already has the
output of the git command printed for debugging purpose since we don't
redirect stdout/stderr.

Author: xclaesse

mesonbuild/wrap/wrap.py

@@ -61,7 +61,10 @@ def quiet_git(cmd: T.List[str], workingdir: str) -> T.Tuple[bool, str]:
 def verbose_git(cmd: T.List[str], workingdir: str, check: bool = False) -> bool:
     if not GIT:
         return False
-    return git(cmd, workingdir, check=check).returncode == 0
+    try:
+        return git(cmd, workingdir, check=check).returncode == 0
+    except subprocess.CalledProcessError:
+        raise WrapException('Git command failed')
 
 def whitelist_wrapdb(urlstr: str) -> urllib.parse.ParseResult:
     """ raises WrapException if not whitelisted subdomain """