Theme provider and '-t' and '-c' CLI options

src/support.rs

@@ -0,0 +1,68 @@
+//! ## Support
+//!
+//! this module exposes some extra run modes for termscp, meant to be used for "support", such as installing themes
+
+/**
+ * MIT License
+ *
+ * termscp - Copyright (c) 2021 Christian Visintin
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+// mod
+use crate::system::{environment, theme_provider::ThemeProvider};
+use std::fs;
+use std::path::{Path, PathBuf};
+
+/// ### import_theme
+///
+/// Import theme at provided path into termscp
+pub fn import_theme(p: &Path) -> Result<(), String> {
+    if !p.exists() {
+        return Err(String::from(
+            "Could not import theme: No such file or directory",
+        ));
+    }
+    // Validate theme file
+    ThemeProvider::new(p).map_err(|e| format!("Invalid theme error: {}", e))?;
+    // get config dir
+    let cfg_dir: PathBuf = get_config_dir()?;
+    // Get theme directory
+    let theme_file: PathBuf = environment::get_theme_path(cfg_dir.as_path());
+    // Copy theme to theme_dir
+    fs::copy(p, theme_file.as_path())
+        .map(|_| ())
+        .map_err(|e| format!("Could not import theme: {}", e))
+}
+
+/// ### get_config_dir
+///
+/// Get configuration directory
+fn get_config_dir() -> Result<PathBuf, String> {
+    match environment::init_config_dir() {
+        Ok(Some(config_dir)) => Ok(config_dir),
+        Ok(None) => Err(String::from(
+            "Your system doesn't provide a configuration directory",
+        )),
+        Err(err) => Err(format!(
+            "Could not initialize configuration directory: {}",
+            err
+        )),
+    }
+}