lix -

Age	Commit message (Collapse)	Author
2024-04-25	gc: Find roots using libproc on Darwin	Artemis Tosini
	Previously, the garbage collector found runtime roots on Darwin by shelling out to `lsof -n -w -F n` then parsing the result. However, this requires an lsof binary and can be extremely slow. The official Apple lsof returns in a reasonable amount of time, about 250ms in my tests, but the lsof packaged in nixpkgs is quite slow, taking about 40 seconds to run the command. Using libproc directly is about the same speed as Apple lsof, and allows us to reënable several tests that were disabled on Darwin. Change-Id: Ifa0adda7984e13c15535693baba835aae79a3577
2016-10-18	replace own regex class with std::regex	Alexander Ried

2014-11-25	Add a primop for regular expression pattern matching	Eelco Dolstra
	The function ‘builtins.match’ takes a POSIX extended regular expression and an arbitrary string. It returns ‘null’ if the string does not match the regular expression. Otherwise, it returns a list containing substring matches corresponding to parenthesis groups in the regex. The regex must match the entire string (i.e. there is an implied "^<pat>$" around the regex). For example: match "foo" "foobar" => null match "foo" "foo" => [] match "f(o+)(.)" "foooobar" => ["oooo" "bar"] match "(./)?([^/])" "/dir/file.nix" => ["/dir/" "file.nix"] match "(./)?([^/])" "file.nix" => [null "file.nix"] The following example finds all regular files with extension .nix or .patch underneath the current directory: let findFiles = pat: dir: concatLists (mapAttrsToList (name: type: if type == "directory" then findFiles pat (dir + "/" + name) else if type == "regular" && match pat name != null then [(dir + "/" + name)] else []) (readDir dir)); in findFiles ".\\.(nix\|patch)" (toString ./.)
2014-10-03	nix-env: Add regular expression support in selectors	Eelco Dolstra
	So you can now do things like: $ nix-env -qa '.zip.' $ nix-env -qa '.(firefox\|chromium).'