quote all ruby versions in yaml

Author: jcupitt

.github/workflows/test.yml

@@ -38,17 +38,17 @@ jobs:
       matrix:
         os-version: [ 'ubuntu-20.04' ]
         ruby-version:
-          - 2.0
-          - 2.1
-          - 2.2
-          - 2.3
-          - 2.4
-          - 2.5
-          - 2.6
-          - 2.7
+          - '2.0'
+          - '2.1'
+          - '2.2'
+          - '2.3'
+          - '2.4'
+          - '2.5'
+          - '2.6'
+          - '2.7'
           - '3.0'
-          - 3.1
-          - 3.2
+          - '3.1'
+          - '3.2'
           - jruby
       fail-fast: true
 

CHANGELOG.md

@@ -9,6 +9,7 @@
 * add `Vips.concurrency` to get/set threadpool size [jeremy]
 * add `Vips.concurrency_default` to get the default threadpool size [jeremy]
 * fix targetcustom spec test with libvips 8.13 [lucaskanashiro]
+* add ruby 3.2 to CI [petergoldstein]
 
 ## Version 2.1.4 (2021-10-28)
 

example/revalidate.rb

@@ -0,0 +1,36 @@
+#!/usr/bin/ruby
+
+# demo the "revalidate" feature in libvips 8.15
+
+require "fileutils"
+require "vips"
+
+if ARGV.length != 2
+  puts "usage: ./revalidate.rb IMAGE-FILE-1 IMAGE-FILE-2"
+  exit 1
+end
+
+if File.exists?("fred")
+  puts "file 'fred' exists, delete it first"
+  exit 1
+end
+
+puts "copying #{ARGV[0]} to fred ..."
+FileUtils.cp(ARGV[0], "fred")
+
+image1 = Vips::Image.new_from_file("fred")
+puts "fred.width = #{image1.width}"
+
+puts "copying #{ARGV[1]} to fred ..."
+FileUtils.cp(ARGV[1], "fred")
+
+puts "plain image open ..."
+image2 = Vips::Image.new_from_file("fred")
+puts "fred.width = #{image2.width}"
+
+puts "opening with revalidate ..."
+image2 = Vips::Image.new_from_file("fred", revalidate: true)
+puts "fred.width = #{image2.width}"
+
+File.delete("fred")
+