87 lines
3.2 KiB
Bash
87 lines
3.2 KiB
Bash
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#!/usr/bin/env bash
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set -euo pipefail
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# cast installer — intended for: curl -fsSL .../install.sh | bash
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#
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# Downloads the cast repo tarball, installs the tree under $DEST, builds it,
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# and puts a `cast` symlink on PATH via $BINDIR. Re-run any time to upgrade.
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#
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# Unlike rig (pure bash, runs on bare boxes), cast runs on YOUR machine and
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# needs node — it is an API client, never something a server installs.
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REPO="${CAST_REPO:-heavy-duty/cast}"
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REF="${CAST_REF:-main}"
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DEST="${CAST_HOME:-$HOME/.local/share/cast}"
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if [ "$(id -u)" -eq 0 ]; then
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BINDIR="${CAST_BIN:-/usr/local/bin}"
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else
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BINDIR="${CAST_BIN:-$HOME/.local/bin}"
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fi
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log() { printf 'cast-install: %s\n' "$*"; }
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warn() { printf 'cast-install: WARNING: %s\n' "$*" >&2; }
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die() { printf 'cast-install: ERROR: %s\n' "$*" >&2; exit 1; }
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# --- prerequisites -----------------------------------------------------------
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command -v curl >/dev/null 2>&1 || die "curl is required but was not found."
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command -v tar >/dev/null 2>&1 || die "tar is required but was not found."
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command -v node >/dev/null 2>&1 || die "node >=22.12 is required but was not found."
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command -v npm >/dev/null 2>&1 || die "npm is required but was not found."
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NODE_MAJOR="$(node -p 'process.versions.node.split(".")[0]')"
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[ "$NODE_MAJOR" -ge 22 ] || die "node >=22.12 is required (found $(node -v))."
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# age is what decrypts the state repo's secrets — apply/diff shell out to it.
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command -v age >/dev/null 2>&1 || warn "age not found — 'cast apply' will fail until it is installed."
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# --- temp workspace ----------------------------------------------------------
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TMPDIR="$(mktemp -d)"
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cleanup() { rm -rf "$TMPDIR"; }
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trap cleanup EXIT
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URL="https://github.com/$REPO/archive/refs/heads/$REF.tar.gz"
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log "installing cast ($REPO@$REF)"
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log "downloading $URL"
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curl -fsSL "$URL" -o "$TMPDIR/cast.tar.gz" \
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|| die "failed to download $URL"
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log "extracting archive"
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tar -xzf "$TMPDIR/cast.tar.gz" -C "$TMPDIR" \
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|| die "failed to extract archive"
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# GitHub archives extract to a single top-level dir like cast-<ref>/
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EXTRACTED="$(find "$TMPDIR" -maxdepth 1 -type d -name 'cast-*' | head -n1)"
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[ -n "$EXTRACTED" ] || die "could not find extracted cast-* directory in archive"
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[ -f "$EXTRACTED/bin/cast" ] || die "archive does not contain bin/cast — is $REPO@$REF correct?"
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# --- build (deps + tsc), then drop the dev deps -------------------------------
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log "building (npm ci && npm run build)"
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( cd "$EXTRACTED" && npm ci --silent && npm run build --silent ) \
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|| die "build failed"
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( cd "$EXTRACTED" && npm prune --omit=dev --silent ) || warn "could not prune dev dependencies"
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# --- atomically replace $DEST --------------------------------------------------
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log "installing into $DEST"
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rm -rf "$DEST"
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mkdir -p "$(dirname "$DEST")"
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mv "$EXTRACTED" "$DEST"
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chmod +x "$DEST/bin/cast" "$DEST"/scripts/*.sh
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# --- put cast on PATH ----------------------------------------------------------
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mkdir -p "$BINDIR"
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ln -sf "$DEST/bin/cast" "$BINDIR/cast"
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log "linked $BINDIR/cast -> $DEST/bin/cast"
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# --- PATH check ----------------------------------------------------------------
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case ":$PATH:" in
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*":$BINDIR:"*) : ;;
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*)
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warn "$BINDIR is not on your PATH."
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warn " add: export PATH=\"$BINDIR:\$PATH\""
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;;
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esac
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log "done — try: cast --help"
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