The stack init command¶
stack init initialises Stack's project-level YAML configuration file
(stack.yaml) for an existing project, based on the Cabal file or
package.yaml file for each of its packages.
Stack searches for Cabal and package.yaml files in the current directory,
unless one or more directories are specified as arguments.
Stack also searches for Cabal and package.yaml files in subdirectories, unless
the --ignore-subdirs flag is passed.
Stack will not overwrite an existing stack.yaml file, unless the --force
flag is passed.
Pass the --ignore-subdirs flag to cause Stack to ignore conflicting or
incompatible user packages while initialising.