Module util 

Functions

make_relative_symlink

Create a relative symbolic link from linkname pointing to target. Convenience wrapper around make_symlink(target, linkname, true).

make_symlink

Create a symbolic link pointing to target. If relative is true, computes and uses a relative path from link to target. Removes any existing file at the link path before creating.

output_stderr_to_string

Extract stderr from a command output as a trimmed string

output_to_string

Extract stdout from a command output as a trimmed string

parse_hex

Parse a hexadecimal string prefixed with “0x” or “0X” into a u32. Returns None if the string is not a valid hex number or lacks the prefix.

relative_path

Calculate a relative path from one directory to another. Both paths are canonicalized before computation. Returns None if either path cannot be canonicalized.

shell_quote

Quote a string for safe use in shell commands. Returns the string unchanged if it contains only safe characters, otherwise wraps it in single quotes with proper escaping.

walk_dir_files_with_ext

Recursively walk a directory and collect all files with the given extension. Skips symlinks to avoid infinite loops. Extension should not include the dot.

which

Search PATH for an executable by name. Returns the full path to the first matching executable found, or None.