重新部署Heroku应用程序，无需更改代码 [英] Redeploy Heroku app without code changes

问题描述

我想部署一个Heroku应用程序，使用 git push -u heroku master 完成理想的应用程序。但是，只有在有任何未完成的提交被推送给主设备时，这才会有效。

I would like to deploy a Heroku app which will be done ideally using git push -u heroku master. However this will only work if there are any pending commits to be pushed to master.

如何在无需推送的情况下重新部署应用程序？我尝试了 git push -u heroku master -f ，并且仍然如下所示

How can I redeploy the app while there is nothing to push ? I tried git push -u heroku master -f and still get the same below

Branch master set up to track remote branch master from heroku.
Everything up-to-date

PS：我也想保留现有的应用程序，这意味着我无法使用此答案 https://stackoverflow.com/a/22043184/968442

PS: I also want to retain the existing app, which means I cannot make use of this answer https://stackoverflow.com/a/22043184/968442

推荐答案

正常情况下，设置一个配置变量会导致应用程序重新启动。在大多数情况下，执行此操作后不需要重新部署。

Normally setting a config var causes your application to be restarted. In most situations there should be no need to redeploy after doing this.

如果确实需要触发新部署，则可以添加新的空提交，然后按Heroku再次：

If you really do need to trigger a new deployment you can add a new empty commit, then push to Heroku again:

git commit --allow-empty -m "Trigger Heroku deploy after enabling collectstatic"
git push heroku master

新的空提交是常规提交。它有一个散列，一个作者，一个时间戳等等。它将和它的父代有相同的树。这应该会导致Heroku再次使用与之前提交相同的代码来构建您的应用程序slug。

The new empty commit is a regular commit. It has a hash, an author, a timestamp, etc. It will have the same tree as its parent. This should cause Heroku to build your app slug again using the same code as the previous commit.

这有点尴尬，但它有效。

It's a bit awkward, but it works.

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