From b14bcc6e37b19d765ad12586be4674d2b856080f Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg@phi-gamma.net>
Date: Wed, 11 Jul 2018 00:55:48 +0200
Subject: allow for multiple destination remotes

---
 context_mirror_bot.ml | 50 ++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 36 insertions(+), 14 deletions(-)

diff --git a/context_mirror_bot.ml b/context_mirror_bot.ml
index 1953aeb..cd619ea 100644
--- a/context_mirror_bot.ml
+++ b/context_mirror_bot.ml
@@ -62,7 +62,8 @@ exception Prepare_failed of string
 let bootstrap_repo = "git@bitbucket.org:phg/context-mirror.git"         (* our mirror *)
 let garden_repo    = "http://git.contextgarden.net/context/context.git" (* official, but broken *)
 (*let mirror_repo    = "git@bitbucket.org:phg/context-mirror.git"         [> our mirror <]*)
-let mirror_repo    = "git@bb-git-mirror:phg/context-mirror.git"         (* our mirror *)
+let mirror_repos   = [ "old", "git@bb-git-mirror:phg/context-mirror.git"         (* our old mirror *)
+                     ; "new", "git@gitlab.com:phgsng/context-mirror.git" ]      (* our current mirror *)
 
 let sources =
   [ { name = "beta";
@@ -90,7 +91,8 @@ let static_files = [
   ("context-readme.rst",  "README.rst")
 ]
 
-let gitconfig = Printf.sprintf "\
+let gitconfig =
+  let repo_config = Printf.sprintf "\
 [core]
   repositoryformatversion       = 0
   filemode                      = true
@@ -124,18 +126,32 @@ let gitconfig = Printf.sprintf "\
   remote = garden
   merge  = refs/heads/origin
 
-[remote \"mirror\"]
+"  bootstrap_repo garden_repo
+  and dst_config =
+    String.concat "\n"
+      (List.map
+         (fun (name, url) ->
+            let rem = "mirror-"^name in
+            Printf.sprintf "\
+[remote \"%s\"]
   url   = %s
-  fetch = +refs/heads/*:refs/remotes/mirror/*
+  fetch = +refs/heads/*:refs/remotes/%s/*
 
+" rem url rem)
+         mirror_repos)
+  in repo_config ^ dst_config
+
+(*
+"
 [branch \"beta\"]
-  remote = mirror
+  remote = %s
   merge  = refs/heads/beta
 
 [branch \"current\"]
-  remote = mirror
+  remote = %s
   merge  = refs/heads/current
-"  bootstrap_repo garden_repo mirror_repo
+"
+*)
 
 let ssh_wrapper_script = Printf.sprintf "\
 #!/bin/sh
@@ -466,9 +482,15 @@ end = struct
       | None -> raise (Git_checkout_failed br)
       | Some _ ->
           begin
-            match list_of_pipe ("git push mirror " ^ br) with
-              | None -> Bad "git push failed"
-              | Some _ -> Good
+            let rec aux = function
+              | [] -> Good
+              | (rem, _) :: rest ->
+                 let cmd = Printf.sprintf "git push \"mirror-%s\" \"%s\"" rem br in
+                 match list_of_pipe cmd with
+                 | None -> Bad (Printf.sprintf "git-push: [%s] failed" cmd)
+                 | Some _ -> aux rest
+            in
+            aux mirror_repos
           end
 end
 
@@ -729,7 +751,7 @@ let run_update () =
           | Import_ignored rationale -> msg rationale
           | Import_failed errmsg -> err errmsg
           | Imported br ->
-            msg (Printf.sprintf "Pushing %s to mirror ..." br);
+            msg (Printf.sprintf "Pushing %s to mirrors ..." br);
             match Git.push br with
               | Good -> msg "Success!"
               | Bad errmsg ->
@@ -739,12 +761,12 @@ let run_update () =
   ()
 
 let run_sync () =
-  Git.fetch "mirror";
+  List.iter (fun (rem, _) -> Git.fetch rem) mirror_repos;
   Git.fetch "garden";
   Git.pull "beta";
   Git.pull "current";
-  Git.pull ~rbr:"garden/master" "garden-master";
   let name = "garden-master" in
+  Git.pull ~rbr:name name;
   msg "Pushing changes from context garden repo to mirror";
   match Git.push name with
     | Good -> msg "Success!"
@@ -767,7 +789,7 @@ let run_push () =
   forall_sources
     (fun src ->
        let name = src.name in
-       msg (Printf.sprintf "Pushing branch %s to mirror ..." name);
+       msg (Printf.sprintf "Pushing branch %s to mirrors ..." name);
        match Git.push name with
         | Good -> msg "Success!"
         | Bad errmsg ->
-- 
cgit v1.2.3