Static Git File Server

Features

This binary allows serving selective content of a Git repository. The user can access those files per branch or tag.

This was originally built for publishing up-to-date JSONSchema files per version.

Set up a static file mirror of your Git Repository
Limit display to specific files
Make files accessible per branch or tag

Live Demo

Find a live demo here: https://schema.stackhead.io

This demo serves all JSON files of the "schema" folder of the StackHead repository.

Configuration:

---
git:
  repositories:
    - title: StackHead
      slug: stackhead
      url: https://github.com/getstackhead/stackhead.git
      work_dir: ansible/schemas
      update:
        mode: webhook_github
        webhook:
          github:
            secret: 'REDACTED'
    - title: StackHead CLI
      slug: stackhead-cli
      url: https://github.com/getstackhead/stackhead-cli.git
      work_dir: schemas
      update:
        mode: webhook_github
        webhook:
          github:
            secret: 'REDACTED'
files:
  - "**/*.json"
display:
  branches:
    filter:
      - master
      - next
  tags:
    show_date: false
    virtual_tags:
      enable_semver_major: true

Usage

You may use the binaries from our release section, build one yourself or use our pre-made Docker container.

Docker

Webserver is served at port 8080.

docker run -p 8080:80 -v "`pwd`/config.yml.dist":/config/config.yml saitho/git-file-webserver:latest

Binary

Requires Git to be installed! Webserver is served at port 8080.

./git-file-webserver -p 8080 -c config.yml.dist

Configuration

The config.yml file is used to configure the repository that should be displayed. It can also be used to limit the displayed files or set a work directory.

Git repository settings

Inside the git section you have to set the path to your repository in url setting.

Additionally you may set a work_dir, which means that only the files in this directory are considered to be served. Note: As of right now this is a global option. Keep that in mind if the folder name changes in releases or branches.

Updating the repository can be done two ways: time-based (cache-like) or webhook-based (mirror-like).

Setting the update.mode to "cache" will refresh the repository every hour (per default). You may change the update time by setting update.cache.time (in seconds).

Setting the update.mode to "webhook_github" will refresh the repository on new commits or tags to the repository. The repository needs to be setup manually for that (see below).

---
git:
  repositories:
    - title: StackHead
      slug: stackhead
      url: https://github.com/getstackhead/stackhead.git
      work_dir: schemas
      update:
        mode: cache # either "cache" (default) or "webhook_github"
        cache:
           time: 3600 # default: 60 minutes
        webhook:
          github:
            secret: foobar # secret to be used with GitHub webhook

File settings

The files section is an array of fileglobs you can use to specify which files should be displayed.

In the example below, only JSON files are served. So files that do not end with .json and folders not containing .json files are not displayed.

---
files:
  - "**/*.json"

Display settings

In the display section you can define how the frontend should look like.

---
display:
  branches:
     filter:
        - master
        - develop
        - /feature/.*/ # regex: any feature branches
  tags:
    filter: []
    order: desc
    show_date: true
    virtual_tags:
      enable_semver_major: true
  index:
    show_branches: true
    show_tags: true

You may change the order of tags or hide the tag date in tags subsection.

You can also toggle the display of branches or tags for the index page in the index subsection.

Virtual tags

Virtual major tags will always point to the latest version inside a major release. They can be enabled by setting display.tags.virtual_tags.enable_semver_major to true.

This only will consider semantic versions.

Example: Given the tags v1.0.0, v1.1.0, v2.0.0, two virtual tags "v1" and "v2" will be displayed. "v1" links to "v1.1.0" and "v2" links to "v2.0.0". Pushing a release "v2.0.1" will make "v2" automatically refer to "v2.0.1".

This also works when you don't use the "v" prefix in your tags. The virtual tag will then also not have a "v" prefix.

Filters

Using the filter settings in branches and tags subsection you can filter which branches or tags should be displayed. Wrap the string in / to evaluate the inside as Golang regular expression.

Note that the filters apply before the virtual tags. Given the repostory has two tags v1.0.0 and v1.1.0. For some reason, you exclude v1.1.0 via a filter. The virtual tag will then point to v1.0.0, not v1.1.0!

Logging

A log file is created at ./logs.txt. The setting loc_level can be used to set the logging level.

Allowed values: debug, info, warning, error, panic Default: warning

Mirroring with Webhooks

If you want to update the repository whenever something is pushed or tagged in your repository, you can use GitHub webhooks.

Set the mode in git.update subsection to "webhook_github" and define a secret.

---
git:
  update:
    mode: webhook_github
    webhook:
      github:
        secret: your-secret-here

Then, create your webhook on GitHub as follows:

Go to your Repository Settings
Select the "Webhooks" option in the left navigation menu
Click the button "Add webhook" at the top right
Add set your server URL as "Payload URL" (ending with /webhook/github), e.g. https://schema.stackhead.io/[your-repo-slug]/webhook/github
Select "application/json" as "Content type"
Set your secret from configuration as "Secret"
Choose the option "Let me select individual events." and enable the folowing events:
- Branch or tag creation
- Branch or tag deletion
- Pushes

You're ready to go. New changes to your repository should be mirrored automatically to your webserver.

saitho/git-file-webserver

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