default: git_describe_strategy_t.GIT_DESCRIBE_DEFAULT
default: 10
When calculating the distance from the matching tag or reference, only walk down the first-parent ancestry.
If no matching tag or reference is found, the describe operation would normally fail. If this option is set, it will instead fall back to showing the full id of the commit.
Describe options structure
Initialize with GIT_DESCRIBE_OPTIONS_INIT. Alternatively, you can use git_describe_options_init.