1 files changed, 96 insertions, 0 deletions
diff --git a/c_funcs.go b/c_funcs.go
new file mode 100644
index 0000000..9a226e7
--- /dev/null
+++ b/c_funcs.go
@@ -0,0 +1,96 @@
+/*
+ * ========================
+ * =====    ===============
+ * ======  ================
+ * ======  ================
+ * ======  ====   ====   ==
+ * ======  ===     ==  =  =
+ * ======  ===  =  ==     =
+ * =  ===  ===  =  ==  ====
+ * =  ===  ===  =  ==  =  =
+ * ==     =====   ====   ==
+ * ========================
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2023 Joe
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the organization nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOE ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL JOE BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * josh: src/c_funcs.go
+ * Thu, 14 Dec 2023 12:59:16 +0100
+ * Joe
+ *
+ * core funcs
+ */
+
+package josh
+
+import (
+	"fmt"
+	"os"
+)
+
+// c_die displays an error string to the stderr fd and exits the program
+// with the return code 1.
+// It takes an optional err argument of the error type as a complement of
+// information.
+func c_die(str string, err error) {
+	fmt.Fprintf(os.Stderr, "error: %s", str)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, ": %v\n", err)
+	}
+	fmt.Fprintf(os.Stderr, "\n")
+	os.Exit(1)
+}
+
+// This function will go get the data folder and try to create it if it does
+// not exist. The first path being checked is $XDG_DATA_HOME then
+// $HOME/.local/share. It returns the full data directory path.
+func c_get_data_dir() string {
+	home := os.Getenv("HOME")
+	xdg_home := os.Getenv("XDG_DATA_HOME")
+
+	if len(home) == 0 {
+		c_die("env variable HOME not defined", nil)
+	}
+	if len(xdg_home) > 0 {
+		if _, err := os.Stat(xdg_home); os.IsNotExist(err) {
+			if err := os.MkdirAll(xdg_home, os.ModePerm); err != nil {
+				c_die("could not create path " + xdg_home, err)
+			}
+			fmt.Println("created folder path " + xdg_home)
+		}
+		return xdg_home
+	} else {
+		home := home + ".local/share"
+		if _, err := os.Stat(home); os.IsNotExist(err) {
+			if err := os.MkdirAll(home, os.ModePerm); err != nil {
+				c_die("could not create path " + home, err)
+			}
+			fmt.Println("created folder path " + home)
+		}
+		return home
+	}
+}