Rotate one Gitea PAT and rewrite it in EVERY on-disk reference in lockstep,
so a real in-use token can rotate without breaking git auth. The blob carries
one ref=<file> per reference; Rotate mints the new token, proves it
authenticates, then rewrites the old->new token literal in each ref file
(atomic temp+rename, minGiteaTokenLen-guarded), Verify asserts the new token
is present in each ref, and the spine revokes the old token last. A dead token
is never written into a git config; any failure leaves every ref on a live token.
Adds internal/rotate/gitea_refs.go (read-only reference enumerator) + driver and
enumerator unit tests. Proven end-to-end against real Gitea 1.25.0 in the sandbox
VM via lab/lab-gitea-blast-vm.sh (GITEA_BLAST_VM_OK): one rotation rewrote a fake
.git-credentials, an embedded git-remote URL, and a tea config; new->200, old->401.
Two documented follow-ons before any in-use host PAT: gopass-entry-sync (PAT
duplicated across other gopass entries) and token-scope-cloning (preserve the old
token's repo scopes on mint, like sendgrid).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements the Rotator interface across all four rotation patterns, each a
self-contained one-file driver self-registering via init():
in-place DB password postgres, mysql (3-stmt unprivileged fallback), redis
local keypair + propagate sshkey (ed25519), wireguard (clamped curve25519)
provider-API token gitea PAT, mullvad device key
cloud-key self-identifying aws IAM access key (hand-rolled SigV4, no SDK dep)
Spine (execute.go) enforces Hard Rule #2: backup -> rotate -> verify(new) ->
store -> re-read+verify -> revoke-old; dryrun.go keeps --execute gated. Each
driver ships a table-driven test proving real cutover (old secret stops
authenticating) and asserting no secret substring leaks to argv/Meta/errors.
Promotes golang.org/x/crypto to a direct dependency.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>