altgen

Generate AltStore apps.json source files from GitHub Releases IPA assets.

Static app metadata (name, bundle identifier, icon and screenshot URLs, descriptions…) comes from a TOML config; everything dynamic (version, build version, release date, download URL, file size, release notes) is read live from the GitHub Releases API.

GitHub Releases API ──┐
                      ├──► altgen ──► apps.json
app config TOML ──────┘

Install

pip install .          # or: pip install git+https://github.com/…
altgen --version

Requires Python ≥ 3.10.

Usage

One TOML config = one app = one apps.json:

altgen -c piliplus.toml          # writes apps.json next to the config
altgen -c piliplus.toml -o out/piliplus.json   # override output path

Or skip the config file entirely for a quick single-app source (any CLI flag overrides its TOML counterpart):

altgen --repo owner/App --app-name App --bundle-id com.owner.app -o apps.json

Hosting many sources is just many configs — loop over them or use a CI matrix, one altgen -c <config> per app.

GitHub token

Unauthenticated requests are limited to 60/hour; a token raises that to 5,000/hour. Precedence: --token > GITHUB_TOKEN env var > [github] token.

TOML schema

Only [github] repo, [app] name, and [app] bundle_identifier are required. Keys are snake_case in TOML and become the AltStore camelCase JSON keys (bundle_identifier → bundleIdentifier, icon_url → iconURL, min_os_version → minOSVersion, …). Unknown keys are rejected with an error.

See examples/piliplus.toml for a full example.

[github]
repo = "owner/App"               # REQUIRED: GitHub repo with releases
token = ""                       # optional (see above)

[source]                         # the source this apps.json describes
name = "App"                     # defaults to the repo name
subtitle = ""
description = ""
icon_url = ""                    # omitted from JSON when unset
website = ""
tint_color = "#00AEEF"           # must be #RRGGBB

[app]                            # the app inside the source
name = "App"                     # REQUIRED
bundle_identifier = "com.x.y"    # REQUIRED
developer_name = ""              # defaults to the repo owner (CLI mode)
subtitle = ""
description = ""                 # fallback when a release body is empty
icon_url = ""                    # falls back to [source].icon_url
screenshots = ["https://…"]
tint_color = ""                  # falls back to [source].tint_color
min_os_version = "14.0"          # omitted from versions when unset

[versions]
strip_v_prefix = true            # tag "v1.2.3" → version "1.2.3"
include_prereleases = false      # drafts are always skipped
asset_pattern = "\\.ipa$"        # regex, case-insensitive search on asset name
build_version_pattern = "\\+(\\d+)\\.ipa$"  # group 1 = buildVersion; no match → key omitted
max_versions = 0                 # 0 = unlimited; caps after sorting (newest first)

[news]
enabled = true
title_template = "{name} {version}"
max_entries = 0                  # 0 = unlimited; caps after sorting

[output]
path = "apps.json"               # resolved against THIS file's directory

Behavior notes

• Versions are sorted newest-first by (date, version); one version entry per matching release asset (a release with several IPAs produces several entries sharing the same version).
• A release with no matching asset contributes nothing — not even a news entry. One news entry is emitted per release that has assets.
• Empty output (no releases, only drafts, …) is a valid source: altgen warns on stderr and exits 0.

CLI

altgen [-c PATH] [--repo OWNER/REPO] [--token TOKEN]
       [--name] [--subtitle] [--description] [--icon-url] [--website] [--tint-color]
       [--app-name] [--bundle-id] [--developer-name] [--app-subtitle]
       [--app-description] [--app-icon-url] [--app-tint-color] [--min-os-version]
       [--screenshots URL …] [--include-prereleases] [--max-versions N]
       [-o PATH] [-q] [-v] [--version]

• Without -c, --repo, --app-name, and --bundle-id are required.
• CLI flags override TOML values; -o resolves against the current directory while [output] path resolves against the config file's directory (so a config next to its sources works from any CWD).
• -v logs skipped releases (draft / prerelease / no matching assets) to stderr; -q silences the success message.
• Exit codes: 0 success, 1 GitHub or write error, 2 usage or config error.

Development

pip install -e ".[dev]"
pytest            # fully offline — fixtures captured from the GitHub API