Add realpath.c (Darwin is so great)

2 files changed, 44 insertions, 0 deletions

diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index a9dc74a..bfa6eb2 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -1,3 +1,19 @@
+configure_file(
+	${CMAKE_CURRENT_SOURCE_DIR}/spmbuild
+	${CMAKE_CURRENT_BINARY_DIR}
+	COPYONLY
+)
+
+if (APPLE)
+	add_executable(spm_realpath
+		realpath.c
+	)
+	install(
+			PROGRAMS spm_realpath
+			DESTINATION bin
+	)
+endif ()
+
 install(
 	PROGRAMS spmbuild
 	DESTINATION bin
diff --git a/scripts/realpath.c b/scripts/realpath.c
new file mode 100644
index 0000000..15504a0
--- /dev/null
+++ b/scripts/realpath.c
@@ -0,0 +1,28 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+/**
+ * Apple loves being different. There's no `realpath` program on MacOS
+ * @param argc
+ * @param argv
+ * @return
+ */
+int main(int argc, char *argv[]) {
+    char *path;
+
+    if (argc < 2) {
+        fprintf(stderr, "usage: %s filename\n", argv[0]);
+        return 1;
+    }
+
+    path = realpath(argv[1], NULL);
+    if (path) {
+        puts(path);
+        free(path);
+    } else {
+        perror(argv[1]);
+    }
+
+    return errno;
+}
\ No newline at end of file