mirror of
https://github.com/tailscale/tailscale.git
synced 2026-03-25 09:42:39 -04:00
32adca78f1
Updates tailscale/corp#36382 Change-Id: Ida55b7b1a2cdd0a4653bb41852008e7088fc4a48 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
61 lines
2.7 KiB
Bash
Executable File
61 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
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# Retrieve the latest Go toolchain.
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# Set TS_GO_NEXT=1 to update go.toolchain.next.rev instead.
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#
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set -eu
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cd "$(dirname "$0")"
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if [ "${TS_GO_NEXT:-}" = "1" ]; then
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go_toolchain_branch_file="go.toolchain.next.branch"
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go_toolchain_rev_file="go.toolchain.next.rev"
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else
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go_toolchain_branch_file="go.toolchain.branch"
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go_toolchain_rev_file="go.toolchain.rev"
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fi
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read -r go_branch <"$go_toolchain_branch_file"
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upstream=$(git ls-remote https://github.com/tailscale/go "$go_branch" | awk '{print $1}')
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current=$(cat "$go_toolchain_rev_file")
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if [ "$upstream" != "$current" ]; then
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echo "$upstream" >"$go_toolchain_rev_file"
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fi
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# When updating the regular (non-next) toolchain, also bump go.toolchain.next.rev
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# if it has fallen behind on the same branch. This happens when "next" was tracking
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# a release candidate (e.g. Go 1.26.0rc2) and the regular toolchain later gets
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# bumped to a newer release (e.g. Go 1.26.2) on the same branch. At that point
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# the "next" rev shouldn't still point at the older RC.
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if [ "${TS_GO_NEXT:-}" != "1" ]; then
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read -r next_branch <go.toolchain.next.branch
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if [ "$go_branch" = "$next_branch" ]; then
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next_rev=$(cat go.toolchain.next.rev)
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new_rev=$(cat go.toolchain.rev)
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if [ "$next_rev" != "$new_rev" ]; then
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# Fetch only commit objects (no trees/blobs) with limited depth
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# to keep this fast — we just need the commit graph for ancestry check.
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tmpdir="/tmp/tailscale-pull-toolchain-$$"
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if git clone --bare --filter=tree:0 --depth=20000 --single-branch --branch "$go_branch" \
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https://github.com/tailscale/go "$tmpdir" 2>/dev/null; then
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if git -C "$tmpdir" merge-base --is-ancestor "$next_rev" "$new_rev" 2>/dev/null; then
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echo "$new_rev" >go.toolchain.next.rev
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echo "pull-toolchain.sh: also bumped go.toolchain.next.rev to match (was behind on same branch)" >&2
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fi
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fi
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rm -rf "$tmpdir"
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fi
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fi
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fi
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# Only update go.toolchain.version and go.toolchain.rev.sri for the main toolchain,
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# skipping it if TS_GO_NEXT=1. Those two files are only used by Nix, and as of 2026-01-26
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# don't yet support TS_GO_NEXT=1 with flake.nix or in our corp CI.
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if [ "${TS_GO_NEXT:-}" != "1" ]; then
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./tool/go version 2>/dev/null | awk '{print $3}' | sed 's/^go//' > go.toolchain.version
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./tool/go mod edit -go "$(cat go.toolchain.version)"
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./update-flake.sh
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fi
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if [ -n "$(git diff-index --name-only HEAD -- "$go_toolchain_rev_file" go.toolchain.next.rev go.toolchain.rev.sri go.toolchain.version)" ]; then
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echo "pull-toolchain.sh: changes imported. Use git commit to make them permanent." >&2
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fi
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