tmuxrdr: build and run as its own binary beside stock herdr

scripts/build builds the checkout with the pinned toolchains -- Homebrew's
keg-only rustup, Zig 0.16.0 from ~/.local/opt, crates through sfw, Zig's
hash-pinned packages prefetched by Zig since sfw's proxy breaks them -- and
installs it as ~/.local/bin/tmuxrdr. install now sets up tmuxrdr only, in
~/.config/tmuxrdr, and refuses a binary that reads its config elsewhere.
test-e2e tests tmuxrdr and starts with a config check. The config turns off
herdr's update check, whose update would install stock herdr over the fork.

1 files changed, 52 insertions, 0 deletions

diff --git a/tmuxrdr/scripts/build b/tmuxrdr/scripts/build
new file mode 100755
index 00000000..2305ef73
--- /dev/null
+++ b/tmuxrdr/scripts/build
@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# Build tmuxrdr from this checkout and install it as ~/.local/bin/tmuxrdr
+# (or $TMUXRDR_BIN). cargo's output is herdr's binary, target/release/herdr;
+# the name it is installed under is all the renaming there is -- it starts its
+# server from its own path, and src/config/io.rs gives it its own directories.
+#
+# Toolchains, found without PATH or shell-profile changes:
+#   Rust     the version rust-toolchain.toml pins, through rustup; Homebrew's
+#            keg-only rustup (/opt/homebrew/opt/rustup/bin) is used when no
+#            cargo is on PATH
+#   Zig      exactly 0.16.0, which herdr's vendored libghostty-vt requires:
+#            $ZIG, else ~/.local/opt/zig-0.16.0/zig
+#   sfw      Socket Firewall, which every crate fetch goes through (Zig's
+#            packages are fetched first, by Zig, hash-checked)
+#
+# The binary is replaced by a rename, so a running tmuxrdr server keeps the
+# old one until it is restarted.
+
+set -euo pipefail
+
+repo="$(cd "$(dirname "$0")/../.." && pwd -P)"
+dest="${TMUXRDR_BIN:-$HOME/.local/bin/tmuxrdr}"
+
+die() { >&2 echo "ERROR: $*"; exit 1; }
+
+if ! command -v cargo >/dev/null && [[ -x /opt/homebrew/opt/rustup/bin/cargo ]]; then
+  PATH="/opt/homebrew/opt/rustup/bin:$PATH"
+fi
+command -v cargo >/dev/null || die "no cargo: brew install rustup"
+command -v sfw >/dev/null || die "no sfw: crates are fetched through Socket Firewall"
+
+export ZIG="${ZIG:-$HOME/.local/opt/zig-0.16.0/zig}"
+[[ -x "$ZIG" ]] || die "no Zig at $ZIG (needs exactly 0.16.0: ziglang.org/download, signature-checked)"
+[[ "$("$ZIG" version)" == "0.16.0" ]] || die "$ZIG is Zig $("$ZIG" version), not 0.16.0"
+
+cd "$repo"
+# Zig's packages are fetched by Zig itself, each checked against the hash
+# build.zig.zon pins -- not through sfw, whose proxy breaks Zig's downloads
+# (400 Bad Request). With them cached, the build itself needs only crates.
+(cd vendor/libghostty-vt && "$ZIG" build --fetch=all)
+sfw cargo build --release --locked
+
+mkdir -p "$(dirname "$dest")"
+cp target/release/herdr "$dest.new"
+mv -f "$dest.new" "$dest"
+echo "installed: $dest ($("$dest" --version))"
+
+if "$dest" status server 2>/dev/null | grep -q 'status: running'; then
+  echo "A tmuxrdr server is running the previous build; it switches on its next"
+  echo "start (tmuxrdr server stop ends it, and its panes)."
+fi