Add Runtime object for git hooks

libimagstorestdhook/src/vcs/git/mod.rs

@@ -4,6 +4,7 @@ pub mod create;
 pub mod delete;
 mod error;
 mod result;
+mod runtime;
 pub mod retrieve;
 pub mod update;
 pub mod util;

libimagstorestdhook/src/vcs/git/runtime.rs

@@ -0,0 +1,69 @@
+use std::path::PathBuf;
+
+use git2::{Repository, Signature};
+
+use libimagerror::into::IntoError;
+use libimagerror::trace::trace_error;
+
+use vcs::git::result::Result;
+use vcs::git::error::GitHookErrorKind as GHEK;
+use vcs::git::config::{author_name, author_mail, committer_name, committer_mail};
+
+struct Person<'a> {
+    pub name: &'a str,
+    pub mail: &'a str,
+}
+
+impl<'a> Person<'a> {
+    fn new(name: &'a str, mail: &'a str) -> Person<'a> {
+        Person { name: name, mail: mail }
+    }
+}
+
+struct Runtime<'a> {
+    pub repository: Option<Repository>,
+    pub author: Option<Person<'a>>,
+    pub committer: Option<Person<'a>>,
+}
+
+impl<'a> Runtime<'a> {
+
+    pub fn new(storepath: &PathBuf) -> Runtime<'a> {
+        Runtime {
+            repository: match Repository::open(storepath) {
+                Ok(r) => Some(r),
+                Err(e) => {
+                    trace_error(&e);
+                    None
+                },
+            },
+
+            author: None,
+            committer: None,
+        }
+    }
+
+    pub fn configure(&mut self, config: &Value) -> Result<()> {
+        author_name(cfg)
+            .and_then(|n| author_email(cfg).map(|m| Person::new(n, m)))
+            .and_then(|author| {
+                committer_name(cfg)
+                    .and_then(|n| committer_email(cfg).map(|m| (author, Person::new(n, m))))
+            })
+            .map(|(author, committer)| {
+                self.author = Some(author);
+                self.committer = Some(committer);
+            })
+    }
+
+    pub fn new_committer_sig(&self) -> Option<Result<Signature>> {
+        self.committer
+            .as_ref()
+            .map(|c| {
+                Signature::now(c.name, c.mail)
+                    .map_err(|e| GHEK::MkSignature.into_error_with_cause(Box::new(e)))
+            })
+    }
+
+}
+