From 57c7743ba07eb45a566497789604b3502f9663ae Mon Sep 17 00:00:00 2001
From: "Gu://em_" <guillem.george@epita.fr>
Date: Fri, 19 Dec 2025 20:12:03 +0100
Subject: [PATCH] si ca passe pas jsui cuit

---
 minimake/src/minimake.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/minimake/src/minimake.c b/minimake/src/minimake.c
index e76e664..ff913ab 100644
--- a/minimake/src/minimake.c
+++ b/minimake/src/minimake.c
@@ -8,6 +8,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/stat.h>
 #include <unistd.h>
 
 #include "files/files.h"
@@ -337,6 +338,7 @@ size_t expand_variable(struct line *line, size_t index, char **value)
 
             // Get corresponding value
             *value = get_variable_value(var_name, line->number);
+            free(var_name);
         }
 
         return 2;
@@ -460,9 +462,34 @@ void make_parse(char *path)
 
 // ==== Runtime ====
 
+// Return 1 if rule is up to date, 0 otherwise
+static int uptodate(struct rule *rule)
+{
+    struct stat path_stat;
+
+    if (lstat(rule->name, &path_stat) != 0) // target doesn't exists
+        return 0;
+
+    struct list *dependencies = rule->dependencies;
+    while (dependencies != NULL)
+    {
+        char *depname = dependencies->data;
+        if (lstat(depname, &path_stat) != 0) // Dependecy doesn't exists
+            return 0;
+    }
+    return 1;
+}
+
 // Expands and run a specified rule
 static int run_rule(struct rule *rule)
 {
+    // Check if p to date
+    if (uptodate(rule))
+    {
+        printf("%s: '%s' is up to date.", program_name, rule->name);
+        return 0;
+    }
+
     struct list *commands = rule->recipe;
     struct list *dependencies = rule->dependencies;