Support custom terragrunt release locations - #150
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Set TGENV_REMOTE to a base URL (e.g. an S3 bucket) hosting a versions.json index plus vN.N.N/terragrunt_<os>_<arch> binaries, and tgswitch will fetch releases from there instead of the public GitHub releases page / warrensbox version-list proxy.
The prior wording implied S3 specifically, but tgswitch just issues plain HTTP GET requests, so any static host serving the expected file layout works.
scripts/generate-remote.sh builds the versions.json + vX.Y.Z/ layout TGENV_REMOTE expects, given a list of versions to mirror. It's a reference/example, generalized from an internal CI pipeline pattern that pulls a preset list of versions rather than discovering them.
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Summary
Adds an opt-in
TGENV_REMOTEenvironment variable that letstgswitchfetch the version list and terragrunt binaries from a self-hosted location instead of the public GitHub releases page /warrensbox.github.ioproxy list. Useful for air-gapped environments, internal mirrors, or anywhere pulling directly from GitHub isn't an option.When unset, behavior is unchanged - same defaults as today.
Usage
The endpoint must serve:
Any HTTP(S)-reachable static host works (S3, GCS, an internal artifact repo, plain nginx, etc.) -
tgswitchjust issues normal GET requests.A reference script,
scripts/generate-remote.sh, is included to mirror a chosen set of terragrunt releases into this layout.Changes
main.go:resolveRemoteURLs()resolves the release URL and version-list URL once, honoringTGENV_REMOTEwhen set, and threads them throughinstallFromList/installVersion/installTGHclFileinstead of relying on package-level constants.scripts/generate-remote.sh: mirrors a given list of terragrunt versions into theversions.json+vX.Y.Z/layout above.README.md: documents the new env var and the reference script..gitignore: ignores the script's default output directory.Test plan
go build ./...,go vet ./...,go test ./...all passscripts/generate-remote.shagainst the real terragrunt GitHub releases and confirmed the output layout andversions.jsonshape match whattgswitchparsesTGENV_REMOTE) behavior is unchanged