[Needs review] Feature: @rfcbot poll [teams] (#219)

* add itertools as dependency.

* add database model for Poll stuff.

* really add itertools as dependency in main.rs.

* teams: expose test data, change team names a bit, expose ping and name of teams.

* refactor a bunch of logic and implement polling (hopefully...).

* update command grammar in README.md.

* fix syntax error in up.sql migration.

* fix copy error in up.sql migration.

* fix typo in up.sql migration.

* close poll when everyone has answered it.

* fix #212 by filtering in unstarted fcps. (#223)

* Update toolchain and lockfile (#232)

* update toolchain and lockfile.

* add never_type gate.

* Add Centril to the lang team (#230)

* fix typos (quized -> quizzed).

* fix 225, and deal with leading whitespace.

* colocate from_invocation_line and from_str_all.

* get rid of global state from command parser.

* review -> response for polls.

* fix comments.

* make progress on all 3 in evaluate_nags.

* RfcBotCommand::{AskQuestion -> StartPoll}.

* gracefully handle poll comment typos.

* fix bug.

Cargo.toml

@@ -25,6 +25,7 @@ toml = "0.4"
 url = "1.4"
 urlencoded = "0.5"
 maplit = "1.0.1"
+itertools = "0.7.8"
 
 [dependencies.chrono]
 features = ["serde"]

README.md

@@ -52,13 +52,25 @@ cancel ::= "cancel | "canceled" | "canceling" | "cancels" ;
 review ::= "reviewed" | "review" | "reviewing" | "reviews" ;
 concern ::= "concern" | "concerned" | "concerning" | "concerns" ;
 resolve ::= "resolve" | "resolved" | "resolving" | "resolves" ;
+poll ::= "ask" | "asked" | "asking" | "asks" |
+         "poll" | "polled" | "polling" | "polls" |
+         "query" | "queried" | "querying" | "queries" |
+         "inquire" | "inquired" | "inquiring" | "inquires" |
+         "quiz" | "quizzed" | "quizzing" | "quizzes" |
+         "survey" | "surveyed" | "surveying" | "surveys" ;
+
+team_label ::= "T-lang" | .. ;
+team_label_simple ::= "lang" | .. ;
+team_ping ::= "@"? "rust-lang/lang" | ..;
+team_target ::= team_label | team_label_simple | team_ping ;
 
 line_remainder ::= .+$ ;
 ws_separated ::= ... ;
 
 subcommand ::= merge | close | postpone | cancel | review
              | concern line_remainder
              | resolve line_remainder
+             | poll [team_target]* line_remainder
              ;
 
 invocation ::= "fcp" subcommand

migrations/2018-06-20-062854_create_poll_table/down.sql

@@ -0,0 +1,2 @@
+DROP TABLE poll;
+DROP TABLE poll_response_request;

migrations/2018-06-20-062854_create_poll_table/up.sql

@@ -0,0 +1,19 @@
+CREATE TABLE poll (
+    id SERIAL PRIMARY KEY,
+    fk_issue INTEGER UNIQUE NOT NULL REFERENCES issue (id),
+    fk_initiator INTEGER NOT NULL REFERENCES githubuser (id),
+    fk_initiating_comment INTEGER NOT NULL REFERENCES issuecomment (id),
+    fk_bot_tracking_comment INTEGER NOT NULL REFERENCES issuecomment (id),
+    poll_question VARCHAR NOT NULL,
+    poll_created_at TIMESTAMP NOT NULL,
+    poll_closed BOOLEAN NOT NULL,
+    poll_teams VARCHAR NOT NULL
+);
+
+CREATE TABLE poll_response_request (
+    id SERIAL PRIMARY KEY,
+    fk_poll INTEGER NOT NULL REFERENCES poll (id) ON DELETE CASCADE,
+    fk_respondent INTEGER NOT NULL REFERENCES githubuser (id),
+    responded BOOLEAN NOT NULL,
+    UNIQUE (fk_poll, fk_respondent)
+);

src/domain/rfcbot.rs

@@ -2,6 +2,34 @@ use chrono::NaiveDateTime;
 
 use super::schema::*;
 
+#[derive(Clone, Debug, Eq, Ord, Insertable, PartialEq, PartialOrd)]
+#[table_name="poll"]
+pub struct NewPoll<'a> {
+    pub fk_issue: i32,
+    pub fk_initiator: i32,
+    pub fk_initiating_comment: i32,
+    pub fk_bot_tracking_comment: i32,
+    pub poll_question: &'a str,
+    pub poll_created_at: NaiveDateTime,
+    pub poll_closed: bool,
+    pub poll_teams: &'a str,
+}
+
+#[derive(AsChangeset, Clone, Debug, Deserialize, Eq, Ord,
+         PartialEq, PartialOrd, Queryable, Serialize)]
+#[table_name="poll"]
+pub struct Poll {
+    pub id: i32,
+    pub fk_issue: i32,
+    pub fk_initiator: i32,
+    pub fk_initiating_comment: i32,
+    pub fk_bot_tracking_comment: i32,
+    pub poll_question: String,
+    pub poll_created_at: NaiveDateTime,
+    pub poll_closed: bool,
+    pub poll_teams: String,
+}
+
 #[derive(Clone, Debug, Eq, Ord, Insertable, PartialEq, PartialOrd)]
 #[table_name="fcp_proposal"]
 pub struct NewFcpProposal<'a> {
@@ -14,6 +42,24 @@ pub struct NewFcpProposal<'a> {
     pub fcp_closed: bool,
 }
 
+#[derive(Clone, Debug, Eq, Insertable, Ord, PartialEq, PartialOrd, Serialize)]
+#[table_name="poll_response_request"]
+pub struct NewPollResponseRequest {
+    pub fk_poll: i32,
+    pub fk_respondent: i32,
+    pub responded: bool,
+}
+
+#[derive(AsChangeset, Clone, Debug, Deserialize, Eq, Ord,
+         PartialEq, PartialOrd, Queryable, Serialize)]
+#[table_name="poll_response_request"]
+pub struct PollResponseRequest {
+    pub id: i32,
+    pub fk_poll: i32,
+    pub fk_respondent: i32,
+    pub responded: bool,
+}
+
 #[derive(AsChangeset, Clone, Debug, Deserialize, Eq, Ord,
          PartialEq, PartialOrd, Queryable, Serialize)]
 #[table_name="fcp_proposal"]

src/domain/schema.rs

@@ -129,6 +129,29 @@ table! {
     }
 }
 
+table! {
+    poll (id) {
+        id -> Int4,
+        fk_issue -> Int4,
+        fk_initiator -> Int4,
+        fk_initiating_comment -> Int4,
+        fk_bot_tracking_comment -> Int4,
+        poll_question -> Varchar,
+        poll_created_at -> Timestamp,
+        poll_closed -> Bool,
+        poll_teams -> Varchar,
+    }
+}
+
+table! {
+    poll_response_request (id) {
+        id -> Int4,
+        fk_poll -> Int4,
+        fk_respondent -> Int4,
+        responded -> Bool,
+    }
+}
+
 joinable!(fcp_concern -> githubuser (fk_initiator));
 joinable!(fcp_concern -> fcp_proposal (fk_proposal));
 joinable!(fcp_proposal -> githubuser (fk_initiator));
@@ -143,3 +166,7 @@ joinable!(pullrequest -> githubuser (fk_assignee));
 joinable!(pullrequest -> milestone (fk_milestone));
 joinable!(rfc_feedback_request -> issuecomment (fk_feedback_comment));
 joinable!(rfc_feedback_request -> issue (fk_issue));
+joinable!(poll -> githubuser (fk_initiator));
+joinable!(poll -> issue (fk_issue));
+joinable!(poll_response_request -> poll (fk_poll));
+joinable!(poll_response_request -> githubuser (fk_respondent));