initial commit [141.14.140.180,mike]

2026-08-10 16:35:51 +02:00
commit bc197fe752
8 changed files with 862 additions and 0 deletions
@@ -0,0 +1,60 @@
+#!/bin/sh
+# Build dx for the usual platforms into ./bin, auto-incrementing the patch
+# version by 0.0.1 on every build.
+#
+# version.txt holds the currently built version. Each run increments the patch
+# component, then builds every platform with that one version injected via
+# -ldflags, and writes it back. So version.txt always reflects the version of
+# the binaries just built, and all of them carry the same one.
+#
+# Override the platform list to build just one:
+#   PLATFORMS="linux/amd64" ./build.sh
+#
+# Windows is not in the list: dx compiles there, but the output leans on a
+# terminal that speaks 24-bit colour and draws U+2588 block characters, so
+# shipping it would promise more than has been tested. PLATFORMS can add it.
+#
+# -s -w drops the symbol table and DWARF info, -trimpath keeps build paths out
+# of the binary; together they roughly halve it. Neither affects a panic trace.
+set -e
+cd "$(dirname "$0")"
+
+PLATFORMS=${PLATFORMS:-"darwin/arm64 darwin/amd64 linux/amd64 linux/arm64"}
+
+V=$(cat version.txt 2>/dev/null || echo 2.1.0)
+
+# split MAJOR.MINOR.PATCH and increment PATCH (no carry: 2.1.9 -> 2.1.10)
+MAJOR=${V%%.*}
+REST=${V#*.}
+MINOR=${REST%%.*}
+PATCH=${REST#*.}
+PATCH=$((PATCH + 1))
+NV="$MAJOR.$MINOR.$PATCH"
+
+# NOTE: ./dx in the repo root is the Perl original from 2016, not a build
+# artefact. Nothing here writes to or removes it — the build only touches ./bin.
+
+mkdir -p bin
+HOST="$(go env GOOS)/$(go env GOARCH)"
+
+for p in $PLATFORMS; do
+	os=${p%/*}
+	arch=${p#*/}
+	out="bin/dx-$os-$arch"
+
+	# CGO_ENABLED=0 throughout: it makes the cross builds work without a
+	# toolchain per target and the binaries static. dx only needs the
+	# filesystem, so nothing is lost by dropping cgo.
+	CGO_ENABLED=0 GOOS="$os" GOARCH="$arch" \
+		go build -trimpath -ldflags "-s -w -X main.version=$NV" -o "$out" .
+
+	if [ "$p" = "$HOST" ]; then
+		ln -sf "dx-$os-$arch" bin/dx # the one for this machine
+		echo "  $out  ->  bin/dx"
+	else
+		echo "  $out"
+	fi
+done
+
+echo "$NV" > version.txt
+echo "built dx v$NV"