Implement (incomplete) dependency checking.

Targets still do not depend on .do-files, and a lot of the edge cases
are still not handled correctly. Furthermore some error-checking code is
still missing, which could possibly crash the program (partially marked
with comments), as well as some free() calls.

An utitlity python script (print_dep.py) was also added to aid in
debugging matters.

1 files changed, 9 insertions, 1 deletions

diff --git a/src/redo-ifchange.c b/src/redo-ifchange.c
index 219a0a1..1efe0a5 100644
--- a/src/redo-ifchange.c
+++ b/src/redo-ifchange.c
@@ -1,11 +1,19 @@
 #include <stdio.h>
+#include <stdbool.h>
 
 #include "build.h"
+#include "dbg.h"
 
 int main(int argc, char *argv[]) {
     int i;
     for (i = 1; i < argc; ++i) {
-        build_target(argv[i]);
+        /*debug("Testing if %s is up-to-date ...\n", argv[i]);*/
+        if (has_changed(argv[i], 'c', false)) {
+            /*printf("=> no\n");*/
+            build_target(argv[i]);
+        } else {
+            /*printf("=> yes\n");*/
+        }
         add_dep(argv[i], 'c');
     }
 }