Module shell 

Functions

compress_if_beneficial_pub

Public wrapper for integration tests to exercise the compression pipeline.

decode_output

exec

exec_argv

Execute a command from pre-split argv without going through sh -c. Used by -t mode when the shell hook passes "$@" — arguments are already correctly split by the user’s shell, so re-serializing them into a string and re-parsing via sh -c would risk mangling complex quoted arguments (em-dashes, #, nested quotes, etc.).

interactive

is_container

Detects if the current process runs inside a Docker/container environment.

is_non_interactive

Returns true if stdin is NOT a terminal (pipe, /dev/null, etc.)

join_command

Join multiple CLI arguments into a single command string, using quoting conventions appropriate for the detected shell.

save_tee

shell_and_flag