refactor: move policy on whether to back up a file into a module

This commit also splits up the src/cmd/backup.rs module into other,
smaller, more cohesive modules that are easier to understand and use.

1 files changed, 45 insertions, 0 deletions

diff --git a/src/backup_progress.rs b/src/backup_progress.rs
new file mode 100644
index 0000000..d65f104
--- /dev/null
+++ b/src/backup_progress.rs
@@ -0,0 +1,45 @@
+use indicatif::{ProgressBar, ProgressStyle};
+use std::path::Path;
+
+pub struct BackupProgress {
+    progress: ProgressBar,
+}
+
+impl BackupProgress {
+    pub fn new() -> Self {
+        let progress = if true {
+            ProgressBar::new(0)
+        } else {
+            ProgressBar::hidden()
+        };
+        let parts = vec![
+            "{wide_bar}",
+            "elapsed: {elapsed}",
+            "files: {pos}/{len}",
+            "current: {wide_msg}",
+            "{spinner}",
+        ];
+        progress.set_style(ProgressStyle::default_bar().template(&parts.join("\n")));
+        progress.enable_steady_tick(100);
+
+        Self { progress }
+    }
+
+    pub fn files_in_previous_generation(&self, count: u64) {
+        self.progress.set_length(count);
+    }
+
+    pub fn found_problem(&self) {
+        self.progress.inc(1);
+    }
+
+    pub fn found_live_file(&self, filename: &Path) {
+        self.progress.inc(1);
+        self.progress
+            .set_message(&format!("{}", filename.display()));
+    }
+
+    pub fn finish(&self) {
+        self.progress.set_length(self.progress.position());
+    }
+}