4 Commits

Author SHA1 Message Date
David Anderson
df3996cae3 tool/gocross: bootstrap correctly on an older toolchain
Sometimes, our cached toolchain ends up being an older version of
Go, older than our go.mod allows. In that scenario, gocross-wrapper.sh
would find a usable toolchain, but then fail to compile gocross.

This change makes the wrapper script check that the cached toolchain's
minor version is good enough to build tailscale.com, and re-bootstraps
in shell if not.

Signed-off-by: David Anderson <danderson@tailscale.com>
2023-03-15 09:40:30 -07:00
David Anderson
64181e17c8 tool/gocross: support local toolchain for development
This makes gocross and its bootstrap script understand an absolute
path in go.toolchain.rev to mean "use the given toolchain directly".

Signed-off-by: David Anderson <danderson@tailscale.com>
2023-02-24 05:55:46 +00:00
David Anderson
7444dabb68 tool/gocross: do all the bootstrap steps in a subshell
This avoids accidentally overwriting variables from the input
environment, which might non-deterministically change the behavior
of gocross.

Signed-off-by: David Anderson <danderson@tailscale.com>
2023-02-24 03:11:29 +00:00
David Anderson
860734aed9 tool/gocross: a tool for building Tailscale binaries
Signed-off-by: David Anderson <danderson@tailscale.com>
2023-02-22 17:55:16 +00:00