Add support for git aliases that include flags or !.

NOTE: This has no effect unless it's running in Clink v1.6.18 or higher.

The new version of Clink is expected to be published in a few days.

git.lua

@@ -2771,10 +2771,28 @@ local function init(argmatcher, full_init)
     -- function, the sort order when displaying completions is defined by the
     -- alias function.  But these do affect input line parsing and coloring.
     local aliases = get_git_aliases()
+    local complex, chain
     for _, a in ipairs(aliases) do
-        local linked = linked_parsers[a.command]
+        local linked
+        if not clink_version.supports_onalias then
+            linked = linked_parsers[a.command]
+        end
         if linked then
             table.insert(commands, a.name..linked)
+        else
+            local bang = a.command:match("^%!") and true or nil
+            local command = a.command:sub(bang and 2 or 1)
+            complex = complex or {}
+            chain = chain or {}
+            complex[a.name] = command
+            chain[a.name] = bang
+            table.insert(commands, a.name)
+        end
+    end
+
+    if complex then
+        commands.onalias = function(arg_index, word, word_index, line_state, user_data) -- luacheck: no unused
+            return complex[word], chain[word]
         end
     end
 

modules/arghelper.lua

@@ -100,6 +100,12 @@
 --------------------------------------------------------------------------------
 -- Changes:
 --
+--  2024/07/23
+--      - Support for `onalias=func`.
+--
+--  2024/04/11
+--      - Support for `hide_unless=func`.
+--
 --  2023/11/18
 --      - Support for `hide=true` in _addexarg().
 --
@@ -394,6 +400,7 @@ if not tmp._addexflags or not tmp._addexarg then
         list.loopchars = tbl.loopchars
         list.nosort = tbl.nosort
         list.onadvance = tbl.onadvance
+        list.onalias = tbl.onalias
         list.onlink = tbl.onlink
         list.onarg = tbl.onarg
         if hide_unless then

modules/clink_version.lua

@@ -22,5 +22,6 @@ exports.has_volatile_matches_fix = (clink_version_encoded >= 10040013)
 exports.supports_argmatcher_onlink = (clink_version_encoded >= 10050014)
 exports.has_linked_setdelayinit_fix = (clink_version_encoded >= 10050016)
 exports.supports_argmatcher_nowordbreakchars = (clink_version_encoded >= 10050017)
+exports.supports_onalias = (clink_version_encoded >= 10060018)
 
 return exports