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Dynamically create RUBY_DESCRIPTION based on runtime parameters #1

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Dynamically create RUBY_DESCRIPTION based on runtime parameters #1

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20 changes: 10 additions & 10 deletions template/fake.rb.in
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,8 @@ if inc = arg['i']
scan(/rb_define_global_const\("(RUBY_\w+)",[^;]*?\bMK(?:INT|STR)\(([^()]*)\)/m) do |n, v|
version[n] = src.value(v)
end
arg['RUBY_DESCRIPTION_WITH_MJIT'] = src.value('description_with_mjit')
arg['RUBY_DESCRIPTION_WITH_YJIT'] = src.value('description_with_yjit')
arg['RUBY_DESCRIPTION_PRE'] = src.value('description_pre')
arg['RUBY_DESCRIPTION_POST'] = src.value('description_post')
end
%>baseruby="<%=arg['BASERUBY']%>"
_\
Expand All @@ -35,15 +35,15 @@ class Object
CROSS_COMPILING = RUBY_PLATFORM
constants.grep(/^RUBY_/) {|n| remove_const n}
% arg['versions'].each {|n, v|
<%=n%> = <%if n=='RUBY_DESCRIPTION' %>case
when RubyVM.const_defined?(:MJIT) && RubyVM::MJIT.enabled?
<%=arg['RUBY_DESCRIPTION_WITH_MJIT'].inspect%>
when RubyVM.const_defined?(:YJIT) && RubyVM::YJIT.enabled?
<%=arg['RUBY_DESCRIPTION_WITH_YJIT'].inspect%>
else
<%=v.inspect%>
end<%else%><%=v.inspect%><%end%>
<%=n%> = <%=v.inspect%>
% }
options = []
if RubyVM.const_defined?(:MJIT) && RubyVM::MJIT.enabled?
options << ' +MJIT'
elsif RubyVM.const_defined?(:YJIT) && RubyVM::YJIT.enabled?
options << ' +YJIT'
end
RUBY_DESCRIPTION = (<%=arg['RUBY_DESCRIPTION_PRE'].inspect%> + options.join('') + <%=arg['RUBY_DESCRIPTION_POST'].inspect%>).freeze
end
builddir = File.dirname(File.expand_path(__FILE__))
srcdir = "<%=arg['srcdir']%>"
Expand Down
30 changes: 14 additions & 16 deletions version.c
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Expand Up @@ -41,12 +41,15 @@ const char ruby_revision[] = RUBY_FULL_REVISION;
const char ruby_release_date[] = RUBY_RELEASE_DATE;
const char ruby_platform[] = RUBY_PLATFORM;
const int ruby_patchlevel = RUBY_PATCHLEVEL;
const char ruby_description[] = RUBY_DESCRIPTION_WITH("");
static const char ruby_description_with_mjit[] = RUBY_DESCRIPTION_WITH(" +MJIT");
static const char ruby_description_with_yjit[] = RUBY_DESCRIPTION_WITH(" +YJIT");
const char ruby_description[] = RUBY_DESCRIPTION_PRE RUBY_DESCRIPTION_POST;
const char ruby_description_pre[] = RUBY_DESCRIPTION_PRE;
const char ruby_description_post[] = RUBY_DESCRIPTION_POST;
const char ruby_copyright[] = RUBY_COPYRIGHT;
const char ruby_engine[] = "ruby";

// Enough space for any combination of option flags
static char ruby_dynamic_description_buffer[sizeof(ruby_description) + sizeof("+MJIT +YJIT") - 1];

// Might change after initialization
const char *rb_dynamic_description = ruby_description;

Expand Down Expand Up @@ -104,24 +107,19 @@ Init_version(void)
void
Init_ruby_description(void)
{
VALUE description;

if (MJIT_OPTS_ON) {
rb_dynamic_description = ruby_description_with_mjit;
description = MKSTR(description_with_mjit);
}
else if (rb_yjit_enabled_p()) {
rb_dynamic_description = ruby_description_with_yjit;
description = MKSTR(description_with_yjit);
}
else {
description = MKSTR(description);
if (snprintf(ruby_dynamic_description_buffer, sizeof(ruby_dynamic_description_buffer), "%s%s%s%s",
ruby_description_pre,
MJIT_OPTS_ON ? " +MJIT" : "",
rb_yjit_enabled_p() ? " +YJIT" : "",
ruby_description_post) < 0) {
rb_bug("could not format dynamic description string");
}
rb_dynamic_description = ruby_dynamic_description_buffer;

/*
* The full ruby version string, like <tt>ruby -v</tt> prints
*/
rb_define_global_const("RUBY_DESCRIPTION", /* MKSTR(description) */ description);
rb_define_global_const("RUBY_DESCRIPTION", rb_obj_freeze(rb_str_new2(rb_dynamic_description)));
}

void
Expand Down
13 changes: 7 additions & 6 deletions version.h
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Expand Up @@ -76,12 +76,13 @@
# define RUBY_RELEASE_DATETIME RUBY_RELEASE_DATE
#endif

# define RUBY_DESCRIPTION_WITH(opt) \
"ruby "RUBY_VERSION \
RUBY_PATCHLEVEL_STR \
" ("RUBY_RELEASE_DATETIME \
RUBY_REVISION_STR")"opt" " \
"["RUBY_PLATFORM"]"
# define RUBY_DESCRIPTION_PRE \
"ruby "RUBY_VERSION \
RUBY_PATCHLEVEL_STR \
" ("RUBY_RELEASE_DATETIME \
RUBY_REVISION_STR")"
# define RUBY_DESCRIPTION_POST \
" ["RUBY_PLATFORM"]"
# define RUBY_COPYRIGHT \
"ruby - Copyright (C) " \
RUBY_BIRTH_YEAR_STR"-" \
Expand Down