From 65fc61f7e4cb5c743db27ccc5db9abff0e82c23a Mon Sep 17 00:00:00 2001
From: Sathish <sathish.sa@samsung.com>
Date: Sun, 19 Sep 2021 15:16:13 +0530
Subject: [PATCH] feat untildify

---
 .gitignore |  3 +++
 Cargo.toml | 18 ++++++++++++++++
 src/lib.rs | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.toml
 create mode 100644 src/lib.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ad2f0ff
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/target
+Cargo.lock
+.DS_Store
\ No newline at end of file
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..cd52141
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "untildify"
+version = "0.1.0"
+edition = "2018"
+license = "MIT"
+readme = "README.md"
+authors = ["sathishsoundharajan <sathishwelcomez@ymail.com>"]
+categories = ["development-tools"]
+homepage = "https://github.com/sathishsoundharajan/untildify"
+repository = "https://github.com/sathishsoundharajan/untildify"
+keywords = ["tilde", "untildify", "~", "utility"]
+documentation = "https://docs.rs/untildify"
+
+[badges.maintenance]
+status = "actively-developed"
+
+[dependencies]
+regex = "1.5.4"
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..d39bb5f
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,60 @@
+use regex::Regex;
+use std::env;
+use std::path::PathBuf;
+
+pub fn untildify(input_path: &str) -> String {
+    if input_path.is_empty() {
+        return String::from(input_path);
+    }
+    return match get_host_dir() {
+        Some(path) => {
+            let host_dir = path.to_str().unwrap();
+            let re = Regex::new(r"^~([/\w]+)").unwrap();
+            match re.captures(input_path) {
+                Some(captures) => {
+                    return format!("{}{}", host_dir, &captures[1]);
+                }
+                None => String::from(input_path),
+            }
+        }
+        None => String::from(input_path),
+    };
+}
+
+#[cfg(any(unix, target_os = "redox"))]
+fn get_host_dir() -> Option<PathBuf> {
+    #[allow(deprecated)]
+    env::home_dir()
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::untildify;
+    use std::env;
+    use std::path::Path;
+
+    #[test]
+    fn test_returns_untildfyed_string() {
+        env::remove_var("HOME");
+
+        let home = Path::new("/User/Untildify");
+        env::set_var("HOME", home.as_os_str());
+
+        assert_eq!(untildify("~/Desktop"), "/User/Untildify/Desktop");
+        assert_eq!(untildify("~/a/b/c/d/e"), "/User/Untildify/a/b/c/d/e");
+        assert_eq!(untildify("~/"), "/User/Untildify/");
+    }
+
+    #[test]
+    fn test_returns_empty_string() {
+        env::remove_var("HOME");
+
+        let home = Path::new("/User/Untildify");
+        env::set_var("HOME", home.as_os_str());
+
+        assert_eq!(untildify("Desktop"), "Desktop");
+        assert_eq!(untildify(""), "");
+        assert_eq!(untildify("/"), "/");
+        assert_eq!(untildify("~/Desktop/~/Code"), "/User/Untildify/Desktop/");
+    }
+}