From d4e14550cd80cf8eb59b795378cfa99767ccbc2d Mon Sep 17 00:00:00 2001
From: Noah Pederson <noah@packetlost.dev>
Date: Wed, 8 Jul 2026 20:08:45 -0500
Subject: [PATCH] Add autocomplete script for mk

---
 fish/completions/mk.fish | 139 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 fish/completions/mk.fish

diff --git a/fish/completions/mk.fish b/fish/completions/mk.fish
new file mode 100644
index 0000000..a7988a5
--- /dev/null
+++ b/fish/completions/mk.fish
@@ -0,0 +1,139 @@
+function __fish_mk_arg_is_option_value
+    set -l tokens (commandline -opc)
+    set -l previous $tokens[-1]
+
+    test "$previous" = -f
+end
+
+function __fish_mk_current_mkfile
+    set -l tokens (commandline -opc)
+    set -e tokens[1]
+
+    set -l mkfile mkfile
+    set -l previous
+    for token in $tokens
+        if test "$previous" = -f
+            set mkfile $token
+        end
+        set previous $token
+    end
+
+    printf '%s\n' $mkfile
+end
+
+function __fish_mk_complete_targets
+    set -l mkfile (__fish_mk_current_mkfile)
+
+    if not test -r "$mkfile"
+        return
+    end
+
+    command awk '
+        function strip_comment(s,    i, c, out, quote) {
+            quote = 0
+            out = ""
+            for (i = 1; i <= length(s); i++) {
+                c = substr(s, i, 1)
+                if (c == "'"'"'") {
+                    quote = !quote
+                }
+                if (c == "#" && !quote) {
+                    break
+                }
+                out = out c
+            }
+            return out
+        }
+
+        function first_unquoted(s, chars,    i, c, quote) {
+            quote = 0
+            for (i = 1; i <= length(s); i++) {
+                c = substr(s, i, 1)
+                if (c == "'"'"'") {
+                    quote = !quote
+                }
+                if (index(chars, c) && !quote) {
+                    return i
+                }
+            }
+            return 0
+        }
+
+        function split_targets(s,    i, c, word, quote) {
+            quote = 0
+            word = ""
+            for (i = 1; i <= length(s); i++) {
+                c = substr(s, i, 1)
+                if (c == "'"'"'") {
+                    quote = !quote
+                    continue
+                }
+                if (c ~ /[[:space:]]/ && !quote) {
+                    print_target(word)
+                    word = ""
+                    continue
+                }
+                word = word c
+            }
+            print_target(word)
+        }
+
+        function print_target(target) {
+            if (target == "" || target ~ /[%&]/ || target ~ /^\$/) {
+                return
+            }
+            if (!seen[target]++) {
+                print target
+            }
+        }
+
+        {
+            line = pending $0
+            pending = ""
+            while (line ~ /\\$/) {
+                sub(/\\$/, "", line)
+                if ((getline nextline) <= 0) {
+                    break
+                }
+                line = line nextline
+            }
+
+            if (line ~ /^[[:space:]]/ || line ~ /^[[:space:]]*($|<)/) {
+                next
+            }
+
+            line = strip_comment(line)
+            sub(/^[[:space:]]+/, "", line)
+            sub(/[[:space:]]+$/, "", line)
+            if (line == "") {
+                next
+            }
+
+            sep = first_unquoted(line, ":=")
+            if (!sep || substr(line, sep, 1) != ":") {
+                next
+            }
+
+            targets = substr(line, 1, sep - 1)
+            tail = substr(line, sep + 1)
+            if (tail ~ /^[^:]*R:/) {
+                next
+            }
+
+            split_targets(targets)
+        }
+    ' "$mkfile" | string escape
+end
+
+complete -c mk -f
+complete -c mk -s a -d 'Assume all targets are out of date'
+complete -c mk -s d -x -a 'e g p eg ep gp egp' -d 'Produce debugging output'
+complete -c mk -s e -d 'Explain why each target is made'
+complete -c mk -s f -r -F -d 'Read mkfile'
+complete -c mk -s i -d 'Force missing intermediate targets to be made'
+complete -c mk -s k -d 'Do as much as possible after errors'
+complete -c mk -s n -d 'Print commands without executing them'
+complete -c mk -s s -d 'Make command line targets sequentially'
+complete -c mk -s t -d 'Touch file targets without executing recipes'
+complete -c mk -s w -x -a '(__fish_mk_complete_targets)' -d 'Pretend targets were modified'
+complete -c mk -n 'not __fish_mk_arg_is_option_value' -a '(__fish_mk_complete_targets)' -d Target
-- 
2.51.2