fix!: Rename application

Name changing is a breaking-change, but features are not changed.

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "gazer"
+name = "age"
 version = "0.1.0"
 edition = "2021"
 

README.md

@@ -1,23 +1,23 @@
-# gazer
+# age
 
-gazer is my bumpversion tool (for training Rust programming).
+age is my bumpversion tool (for training Rust programming).
 
 ## Installation
 
 ```
-cargo install --git https://github.com/attakei-lab/gazer.git
+cargo install --git https://github.com/attakei-lab/age.git
 ```
 
 ## Usage
 
-At first, you must generate configuration file -- `.gazer.toml`.
+At first, you must generate configuration file -- `.age.toml`.
 You should edit it for your current version, because generated file is set `current_version = "0.0.0"`.
 
 ```
-gazer init
+age init
 ```
 
-If you want to up next version, run `gazer update|major|minor|patch`.
+If you want to up next version, run `age update|major|minor|patch`.
 
 * `update` accepts any semver.
 * `major` is shortcut to major version updating of semver.
@@ -28,16 +28,16 @@ Example:
 
 ```console
 # If current_version = "1.2.3"
-> gazer major  # Update to 2.0.0
-> gazer minor  # Update to 1.3.0
-> gazer patch  # Update to 1.2.4
+> age major  # Update to 2.0.0
+> age minor  # Update to 1.3.0
+> age patch  # Update to 1.2.4
 ```
 
 ## Configuration file
 
 ### `current_version`
 
-Version value that gazer manages.
+Version value that `age` manages.
 
 ### `files`
 

src/commands/version.rs

@@ -2,6 +2,6 @@ use anyhow::Result;
 
 pub fn execute() -> Result<()> {
     let version = super::super::VERSION;
-    println!("Running gazer v{version}");
+    println!("Running age v{version}");
     Ok(())
 }

src/config.rs

@@ -6,7 +6,7 @@ use std::env::current_dir;
 use std::fs::read_to_string;
 use std::path::{Path, PathBuf};
 
-pub const DEFAULT_FILENAME: &'static str = ".gazer.toml";
+pub const DEFAULT_FILENAME: &'static str = ".age.toml";
 pub const DEFAULT_VALUES: &'static str = r#"
 current_version = "0.0.0"
 
@@ -55,9 +55,9 @@ impl FileConfig {
  */
 pub fn find_config_path() -> Option<PathBuf> {
     let pwd = current_dir().unwrap();
-    let _gazer_toml = pwd.join(Path::new(DEFAULT_FILENAME));
-    if _gazer_toml.exists() {
-        return Some(_gazer_toml);
+    let _main_toml = pwd.join(Path::new(DEFAULT_FILENAME));
+    if _main_toml.exists() {
+        return Some(_main_toml);
     }
     None
 }