Add compgen caching.

A list of commands is now stored in $XDG_CACHE_HOME/.cache/tofi-compgen,
and regenerated as necessary.

1 files changed, 38 insertions, 0 deletions

diff --git a/src/mkdirp.c b/src/mkdirp.c
new file mode 100644
index 0000000..14bfb2c
--- /dev/null
+++ b/src/mkdirp.c
@@ -0,0 +1,38 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include "log.h"
+#include "mkdirp.h"
+#include "xmalloc.h"
+
+bool mkdirp(const char *path)
+{
+	struct stat statbuf;
+	if (stat(path, &statbuf) == 0) {
+		/* If the file exists, we don't need to do anything. */
+		return true;
+	}
+
+	/*
+	 * Walk down the path, creating directories as we go.
+	 * This works by repeatedly finding the next / in path, then calling
+	 * mkdir() on the string up to that point.
+	 */
+	char *tmp = xstrdup(path);
+	char *cursor = tmp;
+	while ((cursor = strchr(cursor + 1, '/')) != NULL) {
+		*cursor = '\0';
+		log_debug("Creating directory %s\n", tmp);
+		if (mkdir(tmp, 0700) != 0 && errno != EEXIST) {
+			log_error(
+					"Error creating file path: %s.\n",
+					strerror(errno));
+			free(tmp);
+			return false;
+		}
+		*cursor = '/';
+	}
+	free(tmp);
+	return true;
+}