[OE-core][PATCH] ruby: fix the reproducibility issue

[Thomas Perrot <thomas.perrot@bootlin.com>]

Apply some changes on the Ruby makefiles in order to fix the reproducibility:
- use a fixed timestamp,
- sort linked objects,
- doesn't use the current date,
- and use UTC date.

[YOCTO #14268]

Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com>
---
 ...doc-build-reproducible-documentation.patch | 35 ++++++++++
 ...-list-of-object-files-in-generated-M.patch | 28 ++++++++
 ...eproducible-change-fixing-784225-too.patch | 28 ++++++++
 .../0006-Make-gemspecs-reproducible.patch     | 67 +++++++++++++++++++
 meta/recipes-devtools/ruby/ruby_3.0.2.bb      |  4 ++
 5 files changed, 162 insertions(+)
 create mode 100644 meta/recipes-devtools/ruby/ruby/0003-rdoc-build-reproducible-documentation.patch
 create mode 100644 meta/recipes-devtools/ruby/ruby/0004-lib-mkmf.rb-sort-list-of-object-files-in-generated-M.patch
 create mode 100644 meta/recipes-devtools/ruby/ruby/0005-Mark-Gemspec-reproducible-change-fixing-784225-too.patch
 create mode 100644 meta/recipes-devtools/ruby/ruby/0006-Make-gemspecs-reproducible.patch

diff --git a/meta/recipes-devtools/ruby/ruby/0003-rdoc-build-reproducible-documentation.patch b/meta/recipes-devtools/ruby/ruby/0003-rdoc-build-reproducible-documentation.patch
new file mode 100644
index 000000000000..f92f0e1ba683
--- /dev/null
+++ b/meta/recipes-devtools/ruby/ruby/0003-rdoc-build-reproducible-documentation.patch
@@ -0,0 +1,35 @@
+From: Christian Hofstaedtler <zeha@debian.org>
+Date: Tue, 10 Oct 2017 15:04:34 -0300
+Subject: rdoc: build reproducible documentation
+
+- provide a fixed timestamp to the gzip compression
+
+Upstream-Status: Backport [debian]
+
+Signed-off-by: Antonio Terceiro <terceiro@debian.org>
+Signed-off-by: Christian Hofstaedtler <zeha@debian.org>
+---
+ lib/rdoc/generator/json_index.rb | 4 ++--
+ lib/rdoc/rdoc.rb                 | 2 +-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+--- a/lib/rdoc/generator/json_index.rb
++++ b/lib/rdoc/generator/json_index.rb
+@@ -178,7 +178,7 @@
+     debug_msg "Writing gzipped search index to %s" % outfile
+
+     Zlib::GzipWriter.open(outfile) do |gz|
+-      gz.mtime = File.mtime(search_index_file)
++      gz.mtime = -1
+       gz.orig_name = search_index_file.basename.to_s
+       gz.write search_index
+       gz.close
+@@ -196,7 +196,7 @@
+         debug_msg "Writing gzipped file to %s" % outfile
+
+         Zlib::GzipWriter.open(outfile) do |gz|
+-          gz.mtime = File.mtime(dest)
++          gz.mtime = -1
+           gz.orig_name = dest.basename.to_s
+           gz.write data
+           gz.close
diff --git a/meta/recipes-devtools/ruby/ruby/0004-lib-mkmf.rb-sort-list-of-object-files-in-generated-M.patch b/meta/recipes-devtools/ruby/ruby/0004-lib-mkmf.rb-sort-list-of-object-files-in-generated-M.patch
new file mode 100644
index 000000000000..e0aca0dcfc10
--- /dev/null
+++ b/meta/recipes-devtools/ruby/ruby/0004-lib-mkmf.rb-sort-list-of-object-files-in-generated-M.patch
@@ -0,0 +1,28 @@
+From: Reiner Herrmann <reiner@reiner-h.de>
+Date: Tue, 10 Oct 2017 15:06:13 -0300
+Subject: lib/mkmf.rb: sort list of object files in generated Makefile
+
+Without sorting the list explicitly, its order is indeterministic,
+because readdir() is also not deterministic.
+When the list of object files varies between builds, they are linked
+in a different order, which results in an unreproducible build.
+
+Upstream-Status: Backport [debian]
+
+Signed-off-by: Antonio Terceiro <terceiro@debian.org>
+Signed-off-by: Reiner Herrmann <reiner@reiner-h.de>
+---
+ lib/mkmf.rb | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/lib/mkmf.rb
++++ b/lib/mkmf.rb
+@@ -2315,7 +2315,7 @@
+ LIBS = #{$LIBRUBYARG} #{$libs} #{$LIBS}
+ ORIG_SRCS = #{orig_srcs.collect(&File.method(:basename)).join(' ')}
+ SRCS = $(ORIG_SRCS) #{(srcs - orig_srcs).collect(&File.method(:basename)).join(' ')}
+-OBJS = #{$objs.join(" ")}
++OBJS = #{$objs.sort.join(" ")}
+ HDRS = #{hdrs.map{|h| '$(srcdir)/' + File.basename(h)}.join(' ')}
+ LOCAL_HDRS = #{$headers.join(' ')}
+ TARGET = #{target}
diff --git a/meta/recipes-devtools/ruby/ruby/0005-Mark-Gemspec-reproducible-change-fixing-784225-too.patch b/meta/recipes-devtools/ruby/ruby/0005-Mark-Gemspec-reproducible-change-fixing-784225-too.patch
new file mode 100644
index 000000000000..b7faa58655b2
--- /dev/null
+++ b/meta/recipes-devtools/ruby/ruby/0005-Mark-Gemspec-reproducible-change-fixing-784225-too.patch
@@ -0,0 +1,28 @@
+From: Christian Hofstaedtler <zeha@debian.org>
+Date: Tue, 10 Oct 2017 15:07:11 -0300
+Subject: Mark Gemspec-reproducible change fixing #784225, too
+
+I think the UTC date change will fix the Multi-Arch not-same file issue,
+too.
+
+Upstream-Status: Backport [debian]
+
+Signed-off-by: Antonio Terceiro <terceiro@debian.org>
+Signed-off-by: Christian Hofstaedtler <zeha@debian.org>
+---
+ lib/rubygems/specification.rb | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/lib/rubygems/specification.rb
++++ b/lib/rubygems/specification.rb
+@@ -1695,7 +1695,9 @@
+                 raise(Gem::InvalidSpecificationException,
+                       "invalid date format in specification: #{date.inspect}")
+               end
+-            when Time, DateLike then
++            when Time then
++              Time.utc(date.utc.year, date.utc.month, date.utc.day)
++            when DateLike then
+               Time.utc(date.year, date.month, date.day)
+             else
+               TODAY
diff --git a/meta/recipes-devtools/ruby/ruby/0006-Make-gemspecs-reproducible.patch b/meta/recipes-devtools/ruby/ruby/0006-Make-gemspecs-reproducible.patch
new file mode 100644
index 000000000000..504893b4b4ff
--- /dev/null
+++ b/meta/recipes-devtools/ruby/ruby/0006-Make-gemspecs-reproducible.patch
@@ -0,0 +1,67 @@
+From: Lucas Kanashiro <kanashiro@debian.org>
+Date: Fri, 1 Nov 2019 15:25:17 -0300
+Subject: Make gemspecs reproducible
+
+Without an explicit date, they will get the current date and make the
+build unreproducible
+
+Upstream-Status: Backport [debian]
+
+---
+ ext/bigdecimal/bigdecimal.gemspec | 1 +
+ ext/fiddle/fiddle.gemspec         | 1 +
+ ext/io/console/io-console.gemspec | 2 +-
+ lib/ipaddr.gemspec                | 1 +
+ lib/rdoc/rdoc.gemspec             | 1 +
+ 5 files changed, 5 insertions(+), 1 deletion(-)
+
+--- a/ext/bigdecimal/bigdecimal.gemspec
++++ b/ext/bigdecimal/bigdecimal.gemspec
+@@ -6,6 +6,7 @@
+   s.name          = "bigdecimal"
+   s.version       = bigdecimal_version
+   s.authors       = ["Kenta Murata", "Zachary Scott", "Shigeo Kobayashi"]
++  s.date          = RUBY_RELEASE_DATE
+   s.email         = ["mrkn@mrkn.jp"]
+
+   s.summary       = "Arbitrary-precision decimal floating-point number library."
+--- a/ext/fiddle/fiddle.gemspec
++++ b/ext/fiddle/fiddle.gemspec
+@@ -8,6 +8,7 @@
+ Gem::Specification.new do |spec|
+   spec.name          = "fiddle"
+   spec.version       = version_module::Fiddle::VERSION
++  spec.date          = RUBY_RELEASE_DATE
+   spec.authors       = ["Aaron Patterson", "SHIBATA Hiroshi"]
+   spec.email         = ["aaron@tenderlovemaking.com", "hsbt@ruby-lang.org"]
+
+--- a/ext/io/console/io-console.gemspec
++++ b/ext/io/console/io-console.gemspec
+@@ -4,6 +4,7 @@
+ Gem::Specification.new do |s|
+   s.name = "io-console"
+   s.version = _VERSION
++  s.date = RUBY_RELEASE_DATE
+   s.summary = "Console interface"
+   s.email = "nobu@ruby-lang.org"
+   s.description = "add console capabilities to IO instances."
+--- a/lib/ipaddr.gemspec
++++ b/lib/ipaddr.gemspec
+@@ -6,6 +6,7 @@
+ Gem::Specification.new do |spec|
+   spec.name          = "ipaddr"
+   spec.version       = "1.2.2"
++  spec.date          = RUBY_RELEASE_DATE
+   spec.authors       = ["Akinori MUSHA", "Hajimu UMEMOTO"]
+   spec.email         = ["knu@idaemons.org", "ume@mahoroba.org"]
+
+--- a/lib/rdoc/rdoc.gemspec
++++ b/lib/rdoc/rdoc.gemspec
+@@ -7,6 +7,7 @@
+
+ Gem::Specification.new do |s|
+   s.name = "rdoc"
++  s.date = RUBY_RELEASE_DATE
+   s.version = RDoc::VERSION
+
+   s.authors = [
diff --git a/meta/recipes-devtools/ruby/ruby_3.0.2.bb b/meta/recipes-devtools/ruby/ruby_3.0.2.bb
index 38e594a59ef3..2abf504d91bc 100644
--- a/meta/recipes-devtools/ruby/ruby_3.0.2.bb
+++ b/meta/recipes-devtools/ruby/ruby_3.0.2.bb
@@ -7,6 +7,10 @@ SRC_URI += " \
            file://run-ptest \
            file://0001-template-Makefile.in-do-not-write-host-cross-cc-item.patch \
            file://0002-template-Makefile.in-filter-out-f-prefix-map.patch \
+           file://0003-rdoc-build-reproducible-documentation.patch \
+           file://0004-lib-mkmf.rb-sort-list-of-object-files-in-generated-M.patch \
+           file://0005-Mark-Gemspec-reproducible-change-fixing-784225-too.patch \
+           file://0006-Make-gemspecs-reproducible.patch \
            "
 
 SRC_URI[sha256sum] = "5085dee0ad9f06996a8acec7ebea4a8735e6fac22f22e2d98c3f2bc3bef7e6f1"
-- 
2.31.1