Add GitRemoteSetOrigin plugin

This plugin provides a command to set a git commit repo URL for use with
the `GitHubCommit` plugin. Typing

    git remote set origin URL

in chat will set that URL to the current channel.

Problems:
* Can't figure out how to use capture groups, so the entire matched
  message string comes back, not just the URL
* Need to upsert instead of insert into the database

3 files changed, 38 insertions, 0 deletions

diff --git a/sorbot.cabal b/sorbot.cabal
index f27aff6..d69d7eb 100644
--- a/sorbot.cabal
+++ b/sorbot.cabal
@@ -21,6 +21,7 @@ library
                      , Plugin
                      , Plugin.Base
                      , Plugin.GitHubCommit
+                     , Plugin.GitRemoteSetOrigin
   build-depends:       base >= 4.7 && < 5
                      , bytestring
                      , irc-client
diff --git a/src/Plugin.hs b/src/Plugin.hs
index 0ff1367..a9918fc 100644
--- a/src/Plugin.hs
+++ b/src/Plugin.hs
@@ -11,6 +11,7 @@ import Text.Regex.TDFA
 import qualified Message as M
 import Plugin.Base
 import Plugin.GitHubCommit
+import Plugin.GitRemoteSetOrigin
 
 -- | Get the first plugin that matches the given message text.
 matchPlugin :: M.Message -> Maybe Plugin
@@ -32,4 +33,5 @@ performPlugin p message = perform p $ message
 plugins :: [Plugin]
 plugins =
     [ gitHubCommit
+    , gitRemoteSetOrigin
     ]
diff --git a/src/Plugin/GitRemoteSetOrigin.hs b/src/Plugin/GitRemoteSetOrigin.hs
new file mode 100644
index 0000000..0e8f817
--- /dev/null
+++ b/src/Plugin/GitRemoteSetOrigin.hs
@@ -0,0 +1,35 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module Plugin.GitRemoteSetOrigin
+    ( gitRemoteSetOrigin
+    ) where
+
+import Control.Monad.IO.Class (liftIO)
+import qualified Data.Text as T
+
+import Database.SQLite.Simple
+import Text.Regex.TDFA ((=~))
+
+import qualified Message as M
+import Plugin.Base
+
+gitRemoteSetOrigin = Plugin
+    { matchRegex = "^git remote set origin ([^ ]+)$"
+    , perform = gitRemoteSetOriginAction
+    }
+
+gitRemoteSetOriginAction :: PluginAction
+gitRemoteSetOriginAction message = do
+    case M.textStr message =~ matchRegex gitRemoteSetOrigin of
+        ""  -> return $ Left "blast"
+        url -> do
+            dbConn <- liftIO $ open "db/sorbot_development.sqlite3"
+            liftIO $ execute dbConn "INSERT INTO \
+                \ plugin_github_commit_channel_repo_urls \
+                \ (channel, repo_url) \
+                \ VALUES \
+                \ (?, ?)"
+                (M.channel message, url)
+            liftIO $ close dbConn
+
+            return $ Right $ T.pack url