TODO Implement redo-stampredo-stamp

5 files changed, 23 insertions, 2 deletions

diff --git a/build.sh b/build.sh
index f1e1cf0..d556329 100755
--- a/build.sh
+++ b/build.sh
@@ -20,5 +20,6 @@ sudo install out/redo /usr/local/bin
 sudo ln -sf /usr/local/bin/redo /usr/local/bin/redo-ifchange
 sudo ln -sf /usr/local/bin/redo /usr/local/bin/redo-ifcreate
 sudo ln -sf /usr/local/bin/redo /usr/local/bin/redo-always
+sudo ln -sf /usr/local/bin/redo /usr/local/bin/redo-stamp
 
 echo "Finished compiling"
diff --git a/default.do b/default.do
index af491ee..0005756 100644
--- a/default.do
+++ b/default.do
@@ -7,6 +7,8 @@ export VERSION="pre-0.01"
 
 DESTDIR=${DESTDIR-/usr/local/bin}
 
+printf '%s' $REDO_TEST | redo-stamp
+
 if [ "$1" = "all" ]; then
 	redo-ifchange "$OUTDIR/redo"
 elif [ "$1" = "clean" ]; then
@@ -20,5 +22,6 @@ elif [ "$1" = "install" ]; then
 	ln -sf "$DESTDIR/redo" "$DESTDIR/redo-ifchange"
 	ln -sf "$DESTDIR/redo" "$DESTDIR/redo-ifcreate"
 	ln -sf "$DESTDIR/redo" "$DESTDIR/redo-always"
+	ln -sf "$DESTDIR/redo" "$DESTDIR/redo-stamp"
 	echo "Finished installing."
 fi
diff --git a/env.do b/env.do
new file mode 100644
index 0000000..a2a3dee
--- /dev/null
+++ b/env.do
@@ -0,0 +1,3 @@
+echo "Checking if environment changed ..." 2>&1
+printf '%s' "$REDO_TEST" | redo-stamp
+echo "c" > $3
diff --git a/src/build.c b/src/build.c
index 8253319..48ecb7a 100644
--- a/src/build.c
+++ b/src/build.c
@@ -442,6 +442,9 @@ static int handle_ident(dep_info *dep, int ident) {
 			return build_target(dep);
 
 		return 0;
+	case 's':
+		debug("Redo-stamp: %s\n", dep->target);
+		return 1;
 	case 'c':
 		return handle_c(dep);
 	default:
diff --git a/src/redo.c b/src/redo.c
index e28f8fa..59c31ef 100644
--- a/src/redo.c
+++ b/src/redo.c
@@ -69,6 +69,8 @@ int main(int argc, char *argv[]) {
 			ident = 'e';
 		else if (!strcmp(argv_base, "redo-always"))
 			ident = 'a';
+		else if (!strcmp(argv_base, "redo-stamp"))
+			ident = 's';
 		else
 			die("redo: argv set to unkown value\n");
 
@@ -85,9 +87,17 @@ int main(int argc, char *argv[]) {
 		if (env)
 			DBG_LVL = atoi(env);
 
-		if (ident == 'a')
+		if (ident == 'a') {
 			add_prereq(parent, parent, ident);
-		else
+		} else if (ident == 's') {
+			char buf[41];
+			unsigned char *hash = hash_file(stdin);
+
+			sha1_to_hex(hash, buf);
+			add_prereq(buf, parent, ident);
+
+			free(hash);
+		} else {
 			for (int i = 1; i < argc; ++i) {
 				do {
 					temp = &argv[rand() % (argc-1) + 1];
@@ -97,6 +107,7 @@ int main(int argc, char *argv[]) {
 				add_prereq_path(*temp, xbasename(parent), ident);
 				*temp = NULL;
 			}
+		}
 	}
 
 	return EXIT_SUCCESS;