Adds specified files to the staging area for the next commit in Mercurial. More information: https://www.mercurial-scm.org/doc/hg.1.html#add.
hg add {{path/to/file}}
hg add {{[-I|--include]}} {{pattern}}
hg add {{[-X|--exclude]}} {{pattern}}
hg add {{[-S|--subrepos]}}
hg add {{[-n|--dry-run]}}