True if the requested gem has already been installed.
Installing a git gem only involves building the extensions and generating the executables.
This is a null install as this specification is already installed. options are ignored.
This is a null install as a locked specification is considered installed. options are ignored.
Installs this specification using the Gem::Installer options. The install method yields a Gem::Installer instance, which indicates the gem will be installed, or nil, which indicates the gem is already installed.
After installation spec is updated to point to the just-installed specification.
This is a null install as this gem was unpacked into a directory. options are ignored.
This integer returns the maximum level of data structure nesting in the generated JSON, max_nesting = 0 if no maximum is checked.
This sets the maximum level of data structure nesting in the generated JSON to the integer depth, max_nesting = 0 if no maximum should be checked.
Checks if ios starts with a BOM, and then consumes it and sets the external encoding. Returns the result encoding if found, or nil. If ios is not binmode or its encoding has been set already, an exception will be raised.
File.write("bom.txt", "\u{FEFF}abc") ios = File.open("bom.txt", "rb") ios.set_encoding_by_bom #=> #<Encoding:UTF-8> File.write("nobom.txt", "abc") ios = File.open("nobom.txt", "rb") ios.set_encoding_by_bom #=> nil
Returns the last win32 socket Error of the current executing Thread or nil if none
Sets the last win32 socket Error of the current executing Thread to error
Starts tracing object allocations.
Stop tracing object allocations.
Note that if ::trace_object_allocations_start is called n-times, then tracing will stop after calling ::trace_object_allocations_stop n-times.
Raises NoMemoryError when allocating an instance of the given classes.
No longer raises NoMemoryError when allocating an instance of the given classes.
The index to insert activated gem paths into the $LOAD_PATH. The activated gem’s paths are inserted before site lib directory by default.