add automerge (#3081)

.github/workflows/sync.yml

@@ -46,3 +46,4 @@ jobs:
         run: |
           export GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
           xmake l -vD ./scripts/sync.lua
+          xmake l -vD ./scripts/automerge.lua

scripts/automerge.lua

@@ -0,0 +1,36 @@
+
+function _get_autoupdate_pr_list()
+    local result = {}
+    local list = os.iorun("gh pr list --label auto-update --state open -R xmake-io/xmake-repo")
+    if list then
+        for _, line in ipairs(list:split("\n")) do
+            if line:find("Auto-update", 1, true) then
+                local id = line:match("(%d+)%s+Auto%-update")
+                if id then
+                    table.insert(result, {id = id, title = line})
+                end
+            end
+        end
+    end
+    return result
+end
+
+function _check_pr_passed(id)
+    local ok = os.vexecv("gh", {"pr", "checks", id, "-R", "xmake-io/xmake-repo"}, {try = true})
+    if ok == 0 then
+        return true
+    end
+end
+
+function main()
+    local pr_list = _get_autoupdate_pr_list()
+    for _, info in ipairs(pr_list) do
+        local id = info.id
+        local title = info.title
+        print("checking %s ...", title)
+        if _check_pr_passed(id) then
+            print("pull/%d passed, it will be merged next.", id)
+            os.vexec("gh pr merge %d --squash -d -R xmake-io/xmake-repo", id)
+        end
+    end
+end