[Libguestfs] [PATCH 1/3] daemon: add split_key_value_strings helper

Add a simple helper to turn a list of strings into key/value pairs, splitting by '='. --- daemon/utils.ml | 15 +++++++++++++++ daemon/utils.mli | 6 ++++++ 2 files changed, 21 insertions(+) diff --git a/daemon/utils.ml b/daemon/utils.ml index d87ad75db..fd1681a86 100644 --- a/daemon/utils.ml +++ b/daemon/utils.ml @@ -229,3 +229,18 @@ let unix_canonical_path path = let path = String.nsplit "/" path in let path = List.filter ((<>) "") path in (if is_absolute then "/" else "") ^ String.concat "/" path + +let split_key_value_strings lines = + let lines = List.filter ((<>) "") lines in + let lines = List.filter (fun s -> s.[0] <> '#') lines in + List.map ( + fun line -> + let key, value = String.split "=" line in + let value = + let n = String.length value in + if n >= 2 && value.[0] = '"' && value.[n-1] = '"' then + String.sub value 1 (n-2) + else + value in + (key, value) + ) lines diff --git a/daemon/utils.mli b/daemon/utils.mli index f312bde41..9730d06b5 100644 --- a/daemon/utils.mli +++ b/daemon/utils.mli @@ -97,5 +97,11 @@ val unix_canonical_path : string -> string The path is modified in place because the result is always the same length or shorter than the argument passed. *) +val split_key_value_strings : string list -> (string * string) list +(** Split the lines by the [=] separator, removing the double quotes + in the value if present. Empty lines, or that start with a comment + character [#], are ignored. +*) + (**/**) val get_verbose_flag : unit -> bool -- 2.13.6