cli: fix raw payload conversion.

The CLI raw path was treating every variable payload as if it had a two-byte byte-length prefix: imports added one and exports stripped one. That corrupted fixed-size and metadata-prefixed types such as Real, lists, and matrices.

This is now basically wrapping setContentFromData() / getRawContent().

Author: adriweb

cli/cli.cpp

@@ -279,11 +279,8 @@ int main(int argc, char** argv)
                     int filesize = in.tellg();
                     in.seekg(0, ios::beg);
 
-                    data_t data;
-                    data.resize(filesize + 2);
-                    data[0] = filesize & 0xFF;
-                    data[1] = (filesize >> 8) & 0xFF;
-                    in.read((char*) &data[2], filesize);
+                    data_t data(filesize);
+                    in.read((char*) data.data(), filesize);
                     in.close();
 
                     file.setContentFromData(data);
@@ -318,7 +315,11 @@ int main(int argc, char** argv)
                             cout << opath << ": Failed to open file" << endl;
                             return 1;
                         }
-                        out.write((char*) (&file.getRawContent()[2]), file.getRawContent().size() - 2);
+                        const data_t rawContent = file.getRawContent();
+                        if (!rawContent.empty())
+                        {
+                            out.write((char*) rawContent.data(), rawContent.size());
+                        }
                         break;
                     }
                     case READABLE:

scripts/cli_smoke_tests.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+TMP_DIR="${TMPDIR:-/tmp}/tivars_cli_smoke_tests"
+mkdir -p "$TMP_DIR"
+
+CLI="$ROOT_DIR/tivars_cli"
+
+printf '\x00\x80\x10\x00\x00\x00\x00\x00\x00' > "$TMP_DIR/one_real_raw.bin"
+"$CLI" -i "$TMP_DIR/one_real_raw.bin" -j raw -o "$TMP_DIR/one_real.8xn" -k varfile -t Real -n A
+"$CLI" -i "$TMP_DIR/one_real.8xn" -j varfile -o "$TMP_DIR/one_real_roundtrip.bin" -k raw
+cmp -s "$TMP_DIR/one_real_raw.bin" "$TMP_DIR/one_real_roundtrip.bin"