1 files changed, 46 insertions, 0 deletions
diff --git a/src/debian.rs b/src/debian.rs
new file mode 100644
index 0000000..d82a14a
--- /dev/null
+++ b/src/debian.rs
@@ -0,0 +1,46 @@
+use crate::errors::BumperError;
+use log::{debug, info};
+use std::path::{Path, PathBuf};
+use std::process::Command;
+
+pub struct Debian {
+    dirname: PathBuf,
+}
+
+impl Debian {
+    pub fn new(dirname: &Path) -> Result<Self, BumperError> {
+        let changelog = dirname.join("debian/changelog");
+        if changelog.exists() {
+            info!("directory {} contains Debian packaging", dirname.display());
+            return Ok(Self {
+                dirname: dirname.to_path_buf(),
+            });
+        }
+        debug!(
+            "directory {} doesn't contains Debian packaging",
+            dirname.display()
+        );
+        Err(BumperError::UnknownProjectKind(dirname.to_path_buf()))
+    }
+
+    pub fn set_version(&mut self, version: &str) -> Result<(), BumperError> {
+        let version = format!("{}-1", version);
+        self.dch(&["-v", &version, ""])?;
+        self.dch(&["-r", ""])?;
+        Ok(())
+    }
+
+    fn dch(&self, args: &[&str]) -> Result<(), BumperError> {
+        let output = Command::new("dch")
+            .args(args)
+            .current_dir(&self.dirname)
+            .output()
+            .map_err(|err| BumperError::DchInvoke(self.dirname.to_path_buf(), err))?;
+        if output.status.success() {
+            Ok(())
+        } else {
+            let stderr = String::from_utf8_lossy(&output.stderr).into_owned();
+            Err(BumperError::Dch(self.dirname.to_path_buf(), stderr))
+        }
+    }
+}