ENH: add REMOVE_DUPLICATES subcommand to LIST command (and test). Remove duplicates from a list (keep the ordering)

1 files changed, 3 insertions, 0 deletions

diff --git a/Source/cmListCommand.h b/Source/cmListCommand.h
index d607b42533..2e4538b755 100644
--- a/Source/cmListCommand.h
+++ b/Source/cmListCommand.h
@@ -73,6 +73,7 @@ public:
       "  list(INSERT <list> <element_index> <element> [<element> ...])\n"
       "  list(REMOVE_ITEM <list> <value> [<value> ...])\n"
       "  list(REMOVE_AT <list> <index> [<index> ...])\n"
+      "  list(REMOVE_DUPLICATES <list>)\n"
       "  list(REVERSE <list>)\n"
       "  list(SORT <list>)\n"
       "LENGTH will return a given list's length.\n"
@@ -84,6 +85,7 @@ public:
       "REMOVE_AT and REMOVE_ITEM will remove items from the list. The "
       "difference is that REMOVE_ITEM will remove the given items, while "
       "REMOVE_AT will remove the items at the given indices.\n"
+      "REMOVE_DUPLICATES will remove duplicated items in the list.\n"
       "REVERSE reverses the contents of the list in-place.\n"
       "SORT sorts the list in-place alphabetically.\n"
       "NOTES: A list in cmake is a ; separated group of strings. "
@@ -110,6 +112,7 @@ protected:
   bool HandleInsertCommand(std::vector<std::string> const& args);
   bool HandleRemoveAtCommand(std::vector<std::string> const& args);
   bool HandleRemoveItemCommand(std::vector<std::string> const& args);
+  bool HandleRemoveDuplicatesCommand(std::vector<std::string> const& args);
   bool HandleSortCommand(std::vector<std::string> const& args);
   bool HandleReverseCommand(std::vector<std::string> const& args);