diff --git a/core/file.c b/core/file.c
index e86eee75..6b8f9a5e 100644
--- a/core/file.c
+++ b/core/file.c
@@ -268,6 +268,20 @@ int cache_file_write(struct cache_file *file, const void *data, size_t len)
 	return -1;
 }
 
+bool cache_file_import(struct cache_file *file, const gchar *srcpath)
+{
+	gchar *contents = NULL;
+	gsize  length   = 0;
+
+	if (!file->cf_file || !srcpath)
+		return false;
+	if (!g_file_get_contents(srcpath, &contents, &length, NULL))
+		return false;
+
+	cache_file_write(file, contents, length);
+	return true;
+}
+
 bool file_remove(struct file *file)
 {
 	int ret = -1;
diff --git a/include/core/file.h b/include/core/file.h
index 9516283b..4b327e14 100644
--- a/include/core/file.h
+++ b/include/core/file.h
@@ -141,6 +141,9 @@ int file_writef(struct file *, const char *, ...);
  */
 int cache_file_write(struct cache_file *, const void *, size_t);
 
+/* Import a file into the cache. */
+bool cache_file_import(struct cache_file *, const gchar *);
+
 /* Removes a closed file from disk. */
 bool file_remove(struct file *);
 
diff --git a/tests/core/file.c b/tests/core/file.c
index e282c878..a0d00ad8 100644
--- a/tests/core/file.c
+++ b/tests/core/file.c
@@ -151,6 +151,7 @@ static void test_versioning()
 static void test_cache()
 {
 	struct cache_file file = CACHE_FILE_INIT("dir", "file.txt");
+	struct cache_file copy = CACHE_FILE_INIT("dir", "copy.txt");
 	gchar *basepath, *filepath, *writepath;
 
 	basepath  = g_strjoin("/", g_get_user_cache_dir(), OCARINA_NAME, NULL);
@@ -164,6 +165,7 @@ static void test_cache()
 	test_str_equal(cache_file_path(&file), filepath);
 	test_str_equal(cache_file_write_path(&file), writepath);
 
+	/* Test writing data to a cache file. */
 	test_equal(cache_file_exists(&file), (bool)false);
 	test_equal(cache_file_open(&file, OPEN_READ), (bool)false);
 	test_equal(cache_file_open(&file, OPEN_WRITE), (bool)true);
@@ -175,6 +177,17 @@ static void test_cache()
 	cache_file_close(&file);
 	test_equal((void *)file.cf_file, NULL);
 	test_equal(cache_file_exists(&file), (bool)true);
+
+	/* Test importing a file into the cache. */
+	test_equal(cache_file_exists(&copy), (bool)false);
+	test_equal(cache_file_import(&copy, filepath), (bool)false);
+	test_equal(cache_file_exists(&copy), (bool)false);
+	test_equal(cache_file_open(&copy, OPEN_WRITE), (bool)true);
+	test_equal(cache_file_import(&copy,     NULL), (bool)false);
+	test_equal(cache_file_import(&copy, filepath), (bool)true);
+	test_equal(cache_file_exists(&copy), (bool)false);
+	cache_file_close(&copy);
+	test_equal(cache_file_exists(&copy), (bool)true);
 }
 
 DECLARE_UNIT_TESTS(