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Automatically create migrations inside a Gitea instance to mirror Github repositories
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Luzifer Adjust README to new options
Signed-off-by: Knut Ahlers <knut@ahlers.me>
Latest commit 962ced9 Aug 4, 2019

README.md

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Luzifer / github2gitea

github2gitea is a small tool to automatically create migrations inside a Gitea instance to mirror Github repositories.

For those wanting to mirror their Github repos to an own Gitea instance in case something happens to their Github user or organization you just need to execute this tool with the required parameters and for every mached repo (see below) a migration will be created to keep your Gitea repo up to date with the Github version.

When creating the migration

  • the description will be set automatically
  • the repo name will match the name of the repo on Github
  • for private repos a Github token will be added to the sync URL
  • for private repos on Github a private repo will be created in Gitea

Installation

  • Download a pre-built binary from the releases
  • go get -u github.com/Luzifer/github2gitea the tool

Usage

# github2gitea --help
Usage of github2gitea:
  -n, --dry-run                    Only report actions to be done, don't execute them
      --gitea-token string         Token to interact with Gitea instance
      --gitea-url string           URL of the Gitea instance
      --github-token string        Github access token
      --log-level string           Log level (debug, info, warn, error, fatal) (default "info")
      --mapping-file string        File containing several mappings to execute in one run
      --migrate-archived           Create migrations for archived repos
      --migrate-forks              Create migrations for forked repos
      --migrate-private            Migrate private repos (the given Github Token will be entered as sync credential!) (default true)
      --no-mirror                  Do not enable mirroring but instad do a one-time clone
      --source-expression string   Regular expression to match the full name of the source repo (i.e. '^Luzifer/.*$')
      --target-user int            ID of the User / Organization in Gitea to assign the repo to
      --target-user-name string    Username of the given ID (to check whether repo already exists)
      --version                    Prints current version and exits

You can see there is a lot of options you need to set so here is a little walk-through:

Option Required Description
dry-run You should enable it at first to have a look what github2gitea will do
gitea-token X Go to "Settings" in your profile menu, create a new access token
gitea-url X The URL your Gitea is available at. For example: https://try.gitea.io/
github-token X Fetch it in your user-settings under "Developer Settings" and assign repo permissions
log-level The levels used are debug, info, warn, error - Most users should use info
mapping-file (X) Executes more than one mapping in one execution to save Github requests
migrate-archived Set to true to also create migrations for archived repos
migrate-forks Set to true to also create migrations for forked repos
migrate-private Set to false not to create migrations for private repos
no-mirror Set to true not to set up mirroring but only clone the repo
source-expression (X) Regular expression to match the full name of the repo: ^Luzifer/ will for example match Luzifer/github2gitea
target-user (X) ID of your Gitea user or organization (ask your instance admin to look it up in the site admin)
target-user-name (X) Name of the user the ID belongs to

During the dry-run github2gitea will print warnings for any action not executed due to the dry run. Keep an eye on the logs.

You need to specify either a mapping-file or source-expression, target-user and target-user-name. If both are specified the mapping-file wins and the CLI parameters are not used.

Mapping-File

The format of the file is quite simple and in the end reflects the options you can use on the CLI:

---

mappings:
  - source_expression: '^Luzifer/'
    target_user: 1
    target_user_name: luzifer

  - source_expression: '^luzifer-ansible/'
    target_user: 3
    target_user_name: luzifer-ansible

  - source_expression: '^luzifer-docker/'
    target_user: 2
    target_user_name: luzifer-docker

...
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