Add reli integration CI: reli must read an ext-rdump dump

Builds the extension, writes a dump with rdump_dump(..., full=true), then
runs reli's inspector:memory:dump:inspect and inspector:memory:analyze on
it, asserting the RDUMP magic, format version 3, and a completed report.
This guards the extension's reason to exist -- byte-compatibility with the
RDUMP format reli consumes.

https://claude.ai/code/session_017skw8BsHkF8wur7Pf4G9W5

Author: claude

.github/workflows/build.yml

@@ -48,6 +48,27 @@ jobs:
             "php:${{ matrix.php }}-${{ matrix.ts }}" \
             sh ci/build-and-test.sh
 
+  reli-integration:
+    name: reli reads an ext-rdump dump (PHP 8.4)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          path: ext
+
+      - uses: actions/checkout@v5
+        with:
+          repository: reliforp/reli-prof
+          path: reli
+
+      - name: Dump with ext-rdump, then read it with reli
+        run: |
+          docker run --rm \
+            -e CI=1 \
+            -v "$PWD/ext":/ext -v "$PWD/reli":/reli -w /ext \
+            php:8.4-cli \
+            sh ci/reli-integration.sh
+
   leak-check:
     name: Leak check PHP 8.4 ${{ matrix.ts == 'zts' && 'ZTS' || 'NTS' }}
     runs-on: ubuntu-latest

ci/reli-integration.sh

@@ -0,0 +1,64 @@
+#!/bin/sh
+# Integration test: a dump produced by ext-rdump must be readable by reli,
+# the very tool it targets. Builds the extension, writes a dump, then has
+# reli parse and analyse it.
+#
+# Run inside an official php:8.4-cli image with both trees mounted:
+#   docker run --rm -v "$PWD/ext":/ext -v "$PWD/reli":/reli -w /ext \
+#     php:8.4-cli sh ci/reli-integration.sh
+#
+# /ext  = this extension's source tree
+# /reli = a checkout of reliforp/reli-prof
+set -eux
+
+# --- toolchain + the extensions reli itself needs --------------------
+apt-get update
+apt-get install -y --no-install-recommends $PHPIZE_DEPS git unzip libffi-dev
+docker-php-ext-install -j"$(nproc)" ffi pcntl
+
+# --- composer --------------------------------------------------------
+php -r "copy('https://getcomposer.org/installer', '/tmp/composer-setup.php');"
+php /tmp/composer-setup.php --install-dir=/usr/local/bin --filename=composer
+rm -f /tmp/composer-setup.php
+
+# --- build ext-rdump -------------------------------------------------
+cd /ext
+phpize
+./configure --enable-rdump
+make -j"$(nproc)"
+SO="/ext/modules/rdump.so"
+php -d extension="$SO" --ri rdump
+
+# --- install reli ----------------------------------------------------
+cd /reli
+composer install --no-interaction --no-progress
+
+# --- produce a dump with the extension -------------------------------
+DUMP=/tmp/reli-integration.rdump
+export DUMP
+rm -f "$DUMP"
+php -d extension="$SO" -r '
+    // Keep distinctive live data on the heap so the analysis has substance.
+    $marker = array_fill(0, 1000, str_repeat("reli-rdump-integration", 32));
+    if (!rdump_dump(getenv("DUMP"), true)) {
+        fwrite(STDERR, "rdump_dump() returned false\n");
+        exit(1);
+    }
+'
+test -s "$DUMP"
+
+# --- reli must read it ----------------------------------------------
+# FFI is enabled explicitly; reli wires FFI bindings at bootstrap even when
+# reading a file rather than attaching to a live process.
+INSPECT="$(php -d ffi.enable=1 reli inspector:memory:dump:inspect "$DUMP")"
+echo "$INSPECT" | head -20
+echo "$INSPECT" | grep -q 'Magic:.*RDUMP'      || { echo '::error::reli did not recognise the RDUMP magic'; exit 1; }
+echo "$INSPECT" | grep -q 'Format Version:.*3'  || { echo '::error::reli read an unexpected format version'; exit 1; }
+
+# Full analysis must also complete without error.
+php -d ffi.enable=1 reli inspector:memory:analyze "$DUMP" -f report \
+    | tee /tmp/reli-analyze.log | head -30
+grep -q 'Memory Analysis Report' /tmp/reli-analyze.log \
+    || { echo '::error::reli analyze did not produce a report'; exit 1; }
+
+echo "reli-integration OK"