1 files changed, 107 insertions, 0 deletions
diff --git a/src/c_utils.go b/src/c_utils.go
new file mode 100644
index 0000000..72761d8
--- /dev/null
+++ b/src/c_utils.go
@@ -0,0 +1,107 @@
+/*
+ * ========================
+ * =====    ===============
+ * ======  ================
+ * ======  ================
+ * ======  ====   ====   ==
+ * ======  ===     ==  =  =
+ * ======  ===  =  ==     =
+ * =  ===  ===  =  ==  ====
+ * =  ===  ===  =  ==  =  =
+ * ==     =====   ====   ==
+ * ========================
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2023-2024, 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ *
+ * hardflip: src/c_utils.go
+ * Wed Dec 20 10:50:12 2023
+ * Joe
+ *
+ * core funcs
+ */
+
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+// 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 {
+	var ptr *string
+	var home string
+	if home = os.Getenv("HOME"); len(home) == 0 {
+		c_die("env variable HOME not defined", nil)
+	}
+	xdg_home := os.Getenv("XDG_DATA_HOME")
+
+	if len(xdg_home) > 0 {
+		ptr = &xdg_home
+	} else {
+		ptr = &home
+		*ptr += "/.local/share"
+	}
+	*ptr += "/" + DATA_DIR_NAME
+	if _, err := os.Stat(*ptr); os.IsNotExist(err) {
+	    if err := os.MkdirAll(*ptr, os.ModePerm); err != nil {
+	        c_die("could not create path " + *ptr, err)
+	    }
+	}
+	return *ptr
+}
+
+// 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)
+}
+
+func c_error_mode(msg string, err error, ui *HardUI) {
+	ui.mode = ERROR_MODE
+	err_str := ""
+	if err != nil {
+		err_str = fmt.Sprintf("%v", err)
+	}
+	ui.err[ERROR_MSG] = msg
+	ui.err[ERROR_ERR] = err_str
+}