gitlab: expose hook addition API

Fixes #5.

src/gitlab.rs

@@ -147,6 +147,33 @@ impl Gitlab {
         self._get(&format!("projects/{}/hooks/{}", project, hook))
     }
 
+    fn bool_param_value(value: bool) -> &'static str {
+        if value {
+            "true"
+        } else {
+            "false"
+        }
+    }
+
+    fn set_event_flags(request: &mut Request, events: WebhookEvents) {
+        request
+            .param("build_events", Self::bool_param_value(events.build()))
+            .param("issues_events", Self::bool_param_value(events.issues()))
+            .param("merge_requests_events", Self::bool_param_value(events.merge_requests()))
+            .param("note_events", Self::bool_param_value(events.note()))
+            .param("pipeline_events", Self::bool_param_value(events.pipeline()))
+            .param("push_events", Self::bool_param_value(events.push()))
+            .param("wiki_page_events", Self::bool_param_value(events.wiki_page()));
+    }
+
+    /// Add a project hook.
+    pub fn add_hook(&self, project: ProjectId, url: &str, events: WebhookEvents) -> GitlabResult<Hook> {
+        let mut req = try!(self._mkrequest(&format!("projects/{}/hooks", project)));
+        Self::set_event_flags(&mut req, events);
+
+        self._post(&format!("projects/{}/hooks", project))
+    }
+
     /// Get the team members of a group.
     pub fn group_members(&self, group: GroupId) -> GitlabResult<Vec<Member>> {
         self._get_paged(&format!("groups/{}/members", group))

src/macros.rs

@@ -66,3 +66,20 @@ macro_rules! enum_serialize {
         }
     };
 }
+
+macro_rules! with_event {
+    { $method: ident, $name: ident } => {
+        pub fn $method(mut self) -> Self {
+            self.$name = true;
+            self
+        }
+    };
+}
+
+macro_rules! get_event {
+    { $name: ident } => {
+        pub fn $name(&self) -> bool {
+            self.$name
+        }
+    };
+}

src/types.rs.in

@@ -297,6 +297,47 @@ impl From<ProjectHook> for Hook {
     }
 }
 
+#[derive(Default)]
+pub struct WebhookEvents {
+    build: bool,
+    issues: bool,
+    merge_requests: bool,
+    note: bool,
+    pipeline: bool,
+    push: bool,
+    wiki_page: bool,
+}
+
+impl WebhookEvents {
+    fn new() -> Self {
+        WebhookEvents {
+            build: false,
+            issues: false,
+            merge_requests: false,
+            note: false,
+            pipeline: false,
+            push: false,
+            wiki_page: false,
+        }
+    }
+
+    with_event!{with_build, build}
+    with_event!{with_issues, issues}
+    with_event!{with_merge_requests, merge_requests}
+    with_event!{with_note, note}
+    with_event!{with_pipeline, pipeline}
+    with_event!{with_push, push}
+    with_event!{with_wiki_page, wiki_page}
+
+    get_event!{build}
+    get_event!{issues}
+    get_event!{merge_requests}
+    get_event!{note}
+    get_event!{pipeline}
+    get_event!{push}
+    get_event!{wiki_page}
+}
+
 #[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq)]
 /// Type-safe project ID.
 pub struct ProjectId(u64);