Fixed support for paths containing spaces

Installing to any directory with spaces in the path failed because of GEM_HOME and GEM_PATH having not enough quotes around them and ruby failing to parse the options from RUBYOPT when the -r option had spaces in it.

Fixed this by adding the necessary escapes to add doublequotes around the env variables and moved restore_environment.rb to the lib/ruby/site_ruby/ folder, which is in the ruby load path, so the -r option doesn't need to reference the full absolute path.

Closes #38.

Contributed by Ville Immonen (@fson) in #94.

CHANGELOG.md

@@ -5,6 +5,7 @@
  * On Windows, dropped support for x86. Only x64 is now supported.
  * The minimum supported macOS version is now 10.14 Mojave.
  * The minimum supported Linux version is now RHEL 7 / CentOS 7 / Debian 8 / Ubuntu 14.06 / glibc 2.17.
+ * Fixed support for paths containing spaces. Contributed by Ville Immonen (@fson) in [PR #94](https://github.com/phusion/traveling-ruby/pull/94). Closes [issue #38](https://github.com/phusion/traveling-ruby/issues/38).
  * Upgraded CA certificates from that of CentOS 5 to that of CentOS 8.
  * Upgraded OpenSSL to 1.1.1i.
  * Upgraded GMP to 6.2.1.

linux/internal/build-ruby

@@ -28,13 +28,13 @@ echo ORIG_RUBYLIB=\"$RUBYLIB\"
 
 echo LD_LIBRARY_PATH=\"$LD_LIBRARY_PATH:$ROOT/lib\"
 echo SSL_CERT_FILE=\"$ROOT/lib/ca-bundle.crt\"
-echo RUBYOPT=\"-r$ROOT/lib/restore_environment\"
+echo RUBYOPT=\"-rtraveling_ruby_restore_environment\"
 for DIR in "$ROOT"/lib/ruby/gems/*/deplibs/*/*; do
 	echo LD_LIBRARY_PATH=\"\$LD_LIBRARY_PATH:$DIR\"
 done
 EOF
-	echo "echo GEM_HOME=\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\"" >> "$FILE"
-	echo "echo GEM_PATH=\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\"" >> "$FILE"
+	echo "echo GEM_HOME=\\\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\\\"" >> "$FILE"
+	echo "echo GEM_PATH=\\\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\\\"" >> "$FILE"
 
 	cat >> "$FILE" <<EOF
 echo RUBYLIB=\"$LOAD_PATHS\"
@@ -155,7 +155,7 @@ fi
 run cp $USRLIBDIR/libtinfo.so.5 /tmp/ruby/lib/
 run cp $USRLIBDIR/libreadline.so.6 /tmp/ruby/lib/
 run cp /system_shared/ca-bundle.crt /tmp/ruby/lib/
-run cp /system/restore_environment.rb /tmp/ruby/lib/
+run cp /system/traveling_ruby_restore_environment.rb /tmp/ruby/lib/ruby/site_ruby/
 export SSL_CERT_FILE=/tmp/ruby/lib/ca-bundle.crt
 
 # Dump various information about the Ruby binaries.

osx/build-ruby

@@ -47,10 +47,10 @@ echo ORIG_RUBYLIB=\"$RUBYLIB\"
 
 echo TERMINFO=/usr/share/terminfo
 echo SSL_CERT_FILE=\"$ROOT/lib/ca-bundle.crt\"
-echo RUBYOPT=\"-r$ROOT/lib/restore_environment\"
+echo RUBYOPT=\"-rtraveling_ruby_restore_environment\"
 EOF
-	echo "echo GEM_HOME=\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\"" >> "$FILE"
-	echo "echo GEM_PATH=\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\"" >> "$FILE"
+	echo "echo GEM_HOME=\\\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\\\"" >> "$FILE"
+	echo "echo GEM_PATH=\\\"\$ROOT/lib/ruby/gems/$RUBY_COMPAT_VERSION\\\"" >> "$FILE"
 
 	cat >> "$FILE" <<EOF
 echo RUBYLIB=\"$LOAD_PATHS\"
@@ -292,7 +292,7 @@ pushd "$TMPBUILDROOT" >/dev/null
 
 # Copy over various useful files.
 run cp -pR "$RUNTIME_DIR"/lib/*.dylib* lib/
-run cp "$SELFDIR/internal/restore_environment.rb" lib/
+run cp "$SELFDIR/internal/traveling_ruby_restore_environment.rb" lib/ruby/site_ruby/
 run cp "$SELFDIR/../shared/ca-bundle.crt" lib/
 export SSL_CERT_FILE="$TMPBUILDROOT/lib/ca-bundle.crt"