Backport fix to Ruby 3.4 (#28)

ruby/ruby@493d26d

Author: davidtaylorhq

Dockerfile

@@ -9,6 +9,8 @@ ARG RUBY_VERSION
 
 ENV RUBY_VERSION=${RUBY_VERSION}
 
+COPY patches/ /tmp/ruby-patches/
+
 # Installs system dependencies required to run Ruby
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
   --mount=type=cache,target=/var/cache/debconf,sharing=locked \
@@ -74,10 +76,15 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
   cd / && rm -fr /src; \
   export RUSTUP_HOME='/tmp/rust/rustup' CARGO_HOME='/tmp/rust/cargo';\
   export PATH="$CARGO_HOME/bin:$PATH"; \
-  CONFIGURE_OPTS="--disable-install-doc --enable-yjit" ruby-build ${RUBY_VERSION} /usr/local; \
+  # Backport ruby/ruby#16801 to the 3.4 release line
+  case "${RUBY_VERSION}" in \
+    3.4.*) CONFIGURE_OPTS="--disable-install-doc --enable-yjit" ruby-build --patch ${RUBY_VERSION} /usr/local < /tmp/ruby-patches/ruby-16801.patch ;; \
+    *) CONFIGURE_OPTS="--disable-install-doc --enable-yjit" ruby-build ${RUBY_VERSION} /usr/local ;; \
+  esac; \
   # Cleanup build dependencies
   rm -rf /tmp/rust; \
   rm -rf /usr/local/bin/ruby-build; \
+  rm -rf /tmp/ruby-patches; \
   rm -rf /var/lib/apt/lists/*; \
   apt-mark auto '.*' > /dev/null; \
   apt-mark manual $savedAptMark > /dev/null; \

patches/ruby-16801.patch

@@ -0,0 +1,45 @@
+Backport ruby/ruby#16801
+https://github.com/ruby/ruby/commit/493d26dcdea8b2f0ac5d28e057b401bc809e7fae
+
+--- a/include/ruby/onigmo.h
++++ b/include/ruby/onigmo.h
+@@ -687,6 +687,8 @@
+ #define ONIGERR_NEVER_ENDING_RECURSION                       -221
+ #define ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY        -222
+ #define ONIGERR_INVALID_CHAR_PROPERTY_NAME                   -223
++#define ONIGERR_TOO_MANY_RANGE_REPEAT                        -224
++#define ONIGERR_TOO_MANY_NULL_CHECK                          -225
+ #define ONIGERR_INVALID_CODE_POINT_VALUE                     -400
+ #define ONIGERR_INVALID_WIDE_CHAR_VALUE                      -400
+ #define ONIGERR_TOO_BIG_WIDE_CHAR_VALUE                      -401
+--- a/regcomp.c
++++ b/regcomp.c
+@@ -394,6 +394,7 @@
+     r = add_mem_num(reg, reg->num_null_check); /* NULL CHECK ID */
+     if (r) return r;
+     reg->num_null_check++;
++    if ((MemNumType)reg->num_null_check <= 0) return ONIGERR_TOO_MANY_NULL_CHECK;
+   }
+ 
+   r = compile_tree(node, reg);
+@@ -703,6 +704,7 @@
+   if (r) return r;
+   r = add_mem_num(reg, num_repeat); /* OP_REPEAT ID */
+   reg->num_repeat++;
++  if ((MemNumType)reg->num_repeat <= 0) return ONIGERR_TOO_MANY_RANGE_REPEAT;
+   if (r) return r;
+   r = add_rel_addr(reg, target_len + SIZE_OP_REPEAT_INC);
+   if (r) return r;
+--- a/regerror.c
++++ b/regerror.c
+@@ -165,6 +165,10 @@
+     p = "group number is too big for capture history"; break;
+   case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
+     p = "invalid character property name {%n}"; break;
++  case ONIGERR_TOO_MANY_RANGE_REPEAT:
++    p = "too many range repeat"; break;
++  case ONIGERR_TOO_MANY_NULL_CHECK:
++    p = "too many null check"; break;
+   case ONIGERR_TOO_MANY_CAPTURE_GROUPS:
+     p = "too many capture groups are specified"; break;
+   case ONIGERR_INVALID_CODE_POINT_VALUE: