meshtastic: support

protocol/meshtastic/internal/pbgen/generate.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env sh
+
+set -eu
+
+SCRIPT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+UPSTREAM_DIR="$SCRIPT_DIR/upstream"
+OUT_DIR="$SCRIPT_DIR/../../pb"
+MODULE_IMPORT="git.maze.io/go/ham/protocol/meshtastic/pb"
+
+if ! command -v protoc >/dev/null 2>&1; then
+	echo "error: protoc not found in PATH" >&2
+	exit 1
+fi
+
+GOBIN_DIR="$(go env GOPATH 2>/dev/null)/bin"
+if [ -n "$GOBIN_DIR" ] && [ -d "$GOBIN_DIR" ]; then
+	PATH="$GOBIN_DIR:$PATH"
+	export PATH
+fi
+
+if ! command -v protoc-gen-go >/dev/null 2>&1; then
+	echo "error: protoc-gen-go not found in PATH" >&2
+	exit 1
+fi
+
+if [ ! -d "$UPSTREAM_DIR/meshtastic" ]; then
+	echo "error: upstream proto directory not found: $UPSTREAM_DIR/meshtastic" >&2
+	exit 1
+fi
+
+PROTO_FILES=$(find "$UPSTREAM_DIR" -type f -name '*.proto' | LC_ALL=C sort)
+
+if [ -z "$PROTO_FILES" ]; then
+	echo "error: no proto files found in $UPSTREAM_DIR" >&2
+	exit 1
+fi
+
+M_OPTS=""
+for file in $PROTO_FILES; do
+	rel="${file#$UPSTREAM_DIR/}"
+	M_OPTS="$M_OPTS --go_opt=M$rel=$MODULE_IMPORT"
+done
+
+rm -rf "$OUT_DIR"/*.pb.go
+mkdir -p "$OUT_DIR"
+
+# shellcheck disable=SC2086
+protoc \
+	-I "$UPSTREAM_DIR" \
+	--go_out="$OUT_DIR" \
+	--go_opt=paths=source_relative \
+	$M_OPTS \
+	$(printf '%s ' $PROTO_FILES)
+
+# Flatten meshtastic/ subdirectory into pb/ root
+if [ -d "$OUT_DIR/meshtastic" ]; then
+	mv "$OUT_DIR/meshtastic"/*.pb.go "$OUT_DIR/"
+	rmdir "$OUT_DIR/meshtastic"
+fi
+
+# Fix package name from 'generated' to 'pb'
+for pbfile in "$OUT_DIR"/*.pb.go; do
+	if [ -f "$pbfile" ]; then
+		sed -i.bak 's/^package generated$/package pb/' "$pbfile"
+		rm -f "$pbfile.bak"
+	fi
+done
+
+# Convert JSON tags from snake_case to camelCase
+# This converts json:"field_name,omitempty" to json:"fieldName,omitempty"
+for pbfile in "$OUT_DIR"/*.pb.go; do
+	if [ -f "$pbfile" ]; then
+		perl -i -pe 's/json:"([a-z0-9_]+)((?:,[^"]*)?)"/my ($f, $r) = ($1, $2); $f =~ s#_([a-z0-9])#uc($1)#ge; "json:\"$f$r\""/gex' "$pbfile"
+	fi
+done