Function read
Source pub fn read(project_dir: &Path) -> Result<Option<u32>>
Expand description
The format of the project in project_dir, None when it has no
.overbrainer/version (a project from before 0.4.0).
ยงErrors
An io::Error when the file exists but cannot be read, is not a safe path
(a symbolic or hard link, a FIFO), or does not hold an integer (InvalidData).