completions/git: define function before use

share/completions/git.fish

@@ -593,13 +593,6 @@ end
 # So instead, we store the aliases in global variables, named after the alias, containing the command.
 # This is because alias:command is an n:1 mapping (an alias can only have one corresponding command,
 #                                                  but a command can be aliased multiple times)
-git config -z --get-regexp 'alias\..*' | while read -lz alias cmdline
-    set -l command (__fish_git_aliased_command $cmdline)
-    string match -q --regex '\w+' -- $command; or continue
-    # Git aliases can contain chars that variable names can't - escape them.
-    set -l alias (string replace 'alias.' '' -- $alias | string escape --style=var)
-    set -g __fish_git_alias_$alias $command
-end
 
 # Approximately duplicates the logic from https://github.com/git/git/blob/d486ca60a51c9cb1fe068803c3f540724e95e83a/contrib/completion/git-completion.bash#L1130
 # The Git script also finds aliases that reference other aliases via a loop but this is fine for a PoC
@@ -607,9 +600,9 @@ function __fish_git_aliased_command
     for word in (string split ' ' -- $argv)
         switch $word
             case !gitk gitk
-                echo "gitk"
+                echo gitk
                 return
-            # Adding " to the list
+                # Adding " to the list
             case '!*' '-*' '*=*' git '()' '{' : '\'*' '"*'
                 continue
             case '*'
@@ -619,6 +612,14 @@ function __fish_git_aliased_command
     end
 end
 
+git config -z --get-regexp 'alias\..*' | while read -lz alias cmdline
+    set -l command (__fish_git_aliased_command $cmdline)
+    string match -q --regex '\w+' -- $command; or continue
+    # Git aliases can contain chars that variable names can't - escape them.
+    set -l alias (string replace 'alias.' '' -- $alias | string escape --style=var)
+    set -g __fish_git_alias_$alias $command
+end
+
 function __fish_git_using_command
     set -l cmd (__fish_git_needs_command)
     test -z "$cmd"

tests/checks/git.fish

@@ -36,6 +36,10 @@ touch foo
 complete -C'git add '
 #CHECK: foo	Untracked file
 
+git config alias.s status
+complete 'git s --s'
+# CHECK --short
+
 # Note: We can't rely on the initial branch because that might be
 # "master", or it could be changed to something else in future!
 git checkout -b newbranch >/dev/null 2>&1