diff options
Diffstat (limited to 'lib/rubygems/commands/help_command.rb')
| -rw-r--r-- | lib/rubygems/commands/help_command.rb | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/lib/rubygems/commands/help_command.rb b/lib/rubygems/commands/help_command.rb index 7f1fb486e0..9f0ebc087f 100644 --- a/lib/rubygems/commands/help_command.rb +++ b/lib/rubygems/commands/help_command.rb @@ -46,6 +46,10 @@ Some examples of 'gem' usage. * Update all gems on your system: gem update + +* Update your local version of RubyGems + + gem update --system EOF PLATFORMS = <<-'EOF' @@ -55,8 +59,9 @@ your current platform by running `gem environment`. RubyGems matches platforms as follows: - * The CPU must match exactly, unless one of the platforms has - "universal" as the CPU. + * The CPU must match exactly unless one of the platforms has + "universal" as the CPU or the local CPU starts with "arm" and the gem's + CPU is exactly "arm" (for gems that support generic ARM architecture). * The OS must match exactly. * The versions must match exactly unless one of the versions is nil. @@ -66,11 +71,20 @@ you pass must match "#{cpu}-#{os}" or "#{cpu}-#{os}-#{version}". On mswin platforms, the version is the compiler version, not the OS version. (Ruby compiled with VC6 uses "60" as the compiler version, VC8 uses "80".) +For the ARM architecture, gems with a platform of "arm-linux" should run on a +reasonable set of ARM CPUs and not depend on instructions present on a limited +subset of the architecture. For example, the binary should run on platforms +armv5, armv6hf, armv6l, armv7, etc. If you use the "arm-linux" platform +please test your gem on a variety of ARM hardware before release to ensure it +functions correctly. + Example platforms: x86-freebsd # Any FreeBSD version on an x86 CPU universal-darwin-8 # Darwin 8 only gems that run on any CPU x86-mswin32-80 # Windows gems compiled with VC8 + armv7-linux # Gem complied for an ARMv7 CPU running linux + arm-linux # Gem compiled for any ARM CPU running linux When building platform gems, set the platform in the gem specification to Gem::Platform::CURRENT. This will correctly mark the gem with your ruby's @@ -119,7 +133,7 @@ platform. if command then command.summary else - "[No command found for #{cmd_name}, bug?]" + "[No command found for #{cmd_name}]" end summary = wrap(summary, summary_width).split "\n" |