require "bundler/dependency"
require "bundler/ruby_dsl"
module Bundler
class Dsl
include RubyDsl
def self.evaluate(gemfile, lockfile, unlock)
builder = new
builder.eval_gemfile(gemfile)
builder.to_definition(lockfile, unlock)
end
VALID_PLATFORMS = Bundler::Dependency::PLATFORM_MAP.keys.freeze
attr_reader :gemspecs
attr_accessor :dependencies
def initialize
@source = nil
@sources = SourceList.new
@git_sources = {}
@dependencies = []
@groups = []
@install_conditionals = []
@optional_groups = []
@platforms = []
@env = nil
@ruby_version = nil
@gemspecs = []
add_git_sources
end
def eval_gemfile(gemfile, contents = nil)
contents ||= Bundler.read_file(gemfile.to_s)
instance_eval(contents, gemfile.to_s, 1)
rescue Exception => e
message = "There was an error " \
"#{e.is_a?(GemfileEvalError) ? "evaluating" : "parsing"} " \
"`#{File.basename gemfile.to_s}`: #{e.message}"
raise DSLError.new(message, gemfile, e.backtrace, contents)
end
def gemspec(opts = nil)
path = opts && opts[:path] || "."
glob = opts && opts[:glob]
name = opts && opts[:name] || "{,*}"
development_group = opts && opts[:development_group] || :development
expanded_path = File.expand_path(path, Bundler.default_gemfile.dirname)
gemspecs = Dir[File.join(expanded_path, "#{name}.gemspec")]
case gemspecs.size
when 1
spec = Bundler.load_gemspec(gemspecs.first)
unless spec
raise InvalidOption, "There was an error loading the gemspec at " \
"#{file}. Make sure you can build the gem, then try again"
end
gem spec.name, :path => path, :glob => glob, :platforms => Bundler::Dependency::REVERSE_PLATFORM_MAP[spec.platform]
group(development_group) do
spec.development_dependencies.each do |dep|
gem dep.name, *(dep.requirement.as_list + [:type => :development])
end
end
@gemspecs << gemspecs.first
when 0
raise InvalidOption, "There are no gemspecs at #{expanded_path}"
else
raise InvalidOption, "There are multiple gemspecs at #{expanded_path}. " \
"Please use the :name option to specify which one should be used"
end
end
def gem(name, *args)
options = args.last.is_a?(Hash) ? args.pop.dup : {}
version = args || [">= 0"]
normalize_options(name, version, options)
dep = Dependency.new(name, version, options)
# if there's already a dependency with this name we try to prefer one
if current = @dependencies.find {|d| d.name == dep.name }
if current.requirement != dep.requirement
if current.type == :development
@dependencies.delete current
elsif dep.type == :development
return
else
raise GemfileError, "You cannot specify the same gem twice with different version requirements.\n" \
"You specified: #{current.name} (#{current.requirement}) and #{dep.name} (#{dep.requirement})"
end
else
Bundler.ui.warn "Your Gemfile lists the gem #{current.name} (#{current.requirement}) more than once.\n" \
"You should probably keep only one of them.\n" \
"While it's not a problem now, it could cause errors if you change the version of just one of them later."
end
if current.source != dep.source
if current.type == :development
@dependencies.delete current
elsif dep.type == :development
return
else
raise GemfileError, "You cannot specify the same gem twice coming from different sources.\n" \
"You specified that #{dep.name} (#{dep.requirement}) should come from " \
"#{current.source || "an unspecified source"} and #{dep.source}\n"
end
end
end
@dependencies << dep
end
def source(source, &blk)
source = normalize_source(source)
if block_given?
with_source(@sources.add_rubygems_source("remotes" => source), &blk)
else
check_primary_source_safety(@sources)
@sources.add_rubygems_remote(source)
end
end
def git_source(name, &block)
unless block_given?
raise InvalidOption, "You need to pass a block to #git_source"
end
if valid_keys.include?(name.to_s)
raise InvalidOption, "You cannot use #{name} as a git source. It " \
"is a reserved key. Reserved keys are: #{valid_keys.join(", ")}"
end
@git_sources[name.to_s] = block
end
def path(path, options = {}, &blk)
with_source(@sources.add_path_source(normalize_hash(options).merge("path" => Pathname.new(path))), &blk)
end
def git(uri, options = {}, &blk)
unless block_given?
msg = "You can no longer specify a git source by itself. Instead, \n" \
"either use the :git option on a gem, or specify the gems that \n" \
"bundler should find in the git source by passing a block to \n" \
"the git method, like: \n\n" \
" git 'git://github.com/rails/rails.git' do\n" \
" gem 'rails'\n" \
" end"
raise DeprecatedError, msg
end
with_source(@sources.add_git_source(normalize_hash(options).merge("uri" => uri)), &blk)
end
def github(repo, options = {})
raise ArgumentError, "Github sources require a block" unless block_given?
github_uri = @git_sources["github"].call(repo)
git_options = normalize_hash(options).merge("uri" => github_uri)
git_source = @sources.add_git_source(git_options)
with_source(git_source) { yield }
end
def to_definition(lockfile, unlock)
Definition.new(lockfile, @dependencies, @sources, unlock, @ruby_version, @optional_groups)
end
def group(*args, &blk)
opts = Hash === args.last ? args.pop.dup : {}
normalize_group_options(opts, args)
@groups.concat args
if opts["optional"]
optional_groups = args - @optional_groups
@optional_groups.concat optional_groups
end
yield
ensure
args.each { @groups.pop }
end
def install_if(*args, &blk)
@install_conditionals.concat args
blk.call
ensure
args.each { @install_conditionals.pop }
end
def platforms(*platforms)
@platforms.concat platforms
yield
ensure
platforms.each { @platforms.pop }
end
alias_method :platform, :platforms
def env(name)
old = @env
@env = name
yield
ensure
@env = old
end
def method_missing(name, *args)
raise GemfileError, "Undefined local variable or method `#{name}' for Gemfile"
end
private
def add_git_sources
git_source(:github) do |repo_name|
# It would be better to use https instead of the git protocol, but this
# can break deployment of existing locked bundles when switching between
# different versions of Bundler. The change will be made in 2.0, which
# does not guarantee compatibility with the 1.x series.
#
# See https://github.com/bundler/bundler/pull/2569 for discussion
#
# This can be overridden by adding this code to your Gemfiles:
#
# git_source(:github) do |repo_name|
# repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
# "https://github.com/#{repo_name}.git"
# end
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
"git://github.com/#{repo_name}.git"
end
git_source(:gist) {|repo_name| "https://gist.github.com/#{repo_name}.git" }
git_source(:bitbucket) do |repo_name|
user_name, repo_name = repo_name.split "/"
repo_name ||= user_name
"https://#{user_name}@bitbucket.org/#{user_name}/#{repo_name}.git"
end
end
def with_source(source)
old_source = @source
if block_given?
@source = source
yield
end
source
ensure
@source = old_source
end
def normalize_hash(opts)
opts.keys.each do |k|
opts[k.to_s] = opts.delete(k) unless k.is_a?(String)
end
opts
end
def valid_keys
@valid_keys ||= %w(group groups git path glob name branch ref tag require submodules platform platforms type source install_if)
end
def normalize_options(name, version, opts)
if name.is_a?(Symbol)
raise GemfileError, %(You need to specify gem names as Strings. Use 'gem "#{name}"' instead)
end
if name =~ /\s/
raise GemfileError, %('#{name}' is not a valid gem name because it contains whitespace)
end
normalize_hash(opts)
git_names = @git_sources.keys.map(&:to_s)
validate_keys("gem '#{name}'", opts, valid_keys + git_names)
groups = @groups.dup
opts["group"] = opts.delete("groups") || opts["group"]
groups.concat Array(opts.delete("group"))
groups = [:default] if groups.empty?
install_if = @install_conditionals.dup
install_if.concat Array(opts.delete("install_if"))
install_if = install_if.reduce(true) do |memo, val|
memo && (val.respond_to?(:call) ? val.call : val)
end
platforms = @platforms.dup
opts["platforms"] = opts["platform"] || opts["platforms"]
platforms.concat Array(opts.delete("platforms"))
platforms.map!(&:to_sym)
platforms.each do |p|
next if VALID_PLATFORMS.include?(p)
raise GemfileError, "`#{p}` is not a valid platform. The available options are: #{VALID_PLATFORMS.inspect}"
end
# Save sources passed in a key
if opts.key?("source")
source = normalize_source(opts["source"])
opts["source"] = @sources.add_rubygems_source("remotes" => source)
end
git_name = (git_names & opts.keys).last
if @git_sources[git_name]
opts["git"] = @git_sources[git_name].call(opts[git_name])
end
%w(git path).each do |type|
next unless param = opts[type]
if version.first && version.first =~ /^\s*=?\s*(\d[^\s]*)\s*$/
options = opts.merge("name" => name, "version" => $1)
else
options = opts.dup
end
source = send(type, param, options) {}
opts["source"] = source
end
opts["source"] ||= @source
opts["env"] ||= @env
opts["platforms"] = platforms.dup
opts["group"] = groups
opts["should_include"] = install_if
end
def normalize_group_options(opts, groups)
normalize_hash(opts)
groups = groups.map {|group| ":#{group}" }.join(", ")
validate_keys("group #{groups}", opts, %w(optional))
opts["optional"] ||= false
end
def validate_keys(command, opts, valid_keys)
invalid_keys = opts.keys - valid_keys
if invalid_keys.any?
message = "You passed #{invalid_keys.map {|k| ":" + k }.join(", ")} "
message << if invalid_keys.size > 1
"as options for #{command}, but they are invalid."
else
"as an option for #{command}, but it is invalid."
end
message << " Valid options are: #{valid_keys.join(", ")}"
raise InvalidOption, message
end
end
def normalize_source(source)
case source
when :gemcutter, :rubygems, :rubyforge
Bundler.ui.warn "The source :#{source} is deprecated because HTTP " \
"requests are insecure.\nPlease change your source to 'https://" \
"rubygems.org' if possible, or 'http://rubygems.org' if not."
"http://rubygems.org"
when String
source
else
raise GemfileError, "Unknown source '#{source}'"
end
end
def check_primary_source_safety(source)
return unless source.rubygems_primary_remotes.any?
if Bundler.settings[:disable_multisource]
raise GemspecError, "Warning: this Gemfile contains multiple primary sources. " \
"Each source after the first must include a block to indicate which gems " \
"should come from that source. To downgrade this error to a warning, run " \
"`bundle config --delete disable_multisource`"
else
Bundler.ui.warn "Warning: this Gemfile contains multiple primary sources. " \
"Using `source` more than once without a block is a security risk, and " \
"may result in installing unexpected gems. To resolve this warning, use " \
"a block to indicate which gems should come from the secondary source. " \
"To upgrade this warning to an error, run `bundle config " \
"disable_multisource true`."
end
end
class DSLError < GemfileError
# @return [String] the description that should be presented to the user.
#
attr_reader :description
# @return [String] the path of the dsl file that raised the exception.
#
attr_reader :dsl_path
# @return [Exception] the backtrace of the exception raised by the
# evaluation of the dsl file.
#
attr_reader :backtrace
# @param [Exception] backtrace @see backtrace
# @param [String] dsl_path @see dsl_path
#
def initialize(description, dsl_path, backtrace, contents = nil)
@status_code = $!.respond_to?(:status_code) && $!.status_code
@description = description
@dsl_path = dsl_path
@backtrace = backtrace
@contents = contents
end
def status_code
@status_code || super
end
# @return [String] the contents of the DSL that cause the exception to
# be raised.
#
def contents
@contents ||= begin
dsl_path && File.exist?(dsl_path) && File.read(dsl_path)
end
end
# The message of the exception reports the content of podspec for the
# line that generated the original exception.
#
# @example Output
#
# Invalid podspec at `RestKit.podspec` - undefined method
# `exclude_header_search_paths=' for #<Pod::Specification for
# `RestKit/Network (0.9.3)`>
#
# from spec-repos/master/RestKit/0.9.3/RestKit.podspec:36
# -------------------------------------------
# # because it would break: #import <CoreData/CoreData.h>
# > ns.exclude_header_search_paths = 'Code/RestKit.h'
# end
# -------------------------------------------
#
# @return [String] the message of the exception.
#
def to_s
@to_s ||= begin
trace_line, description = parse_line_number_from_description
m = "\n[!] "
m << description
m << ". Bundler cannot continue.\n"
return m unless backtrace && dsl_path && contents
trace_line = backtrace.find {|l| l.include?(dsl_path.to_s) } || trace_line
return m unless trace_line
line_numer = trace_line.split(":")[1].to_i - 1
return m unless line_numer
lines = contents.lines.to_a
indent = " # "
indicator = indent.tr('#', ">")
first_line = (line_numer.zero?)
last_line = (line_numer == (lines.count - 1))
m << "\n"
m << "#{indent}from #{trace_line.gsub(/:in.*$/, "")}\n"
m << "#{indent}-------------------------------------------\n"
m << "#{indent}#{lines[line_numer - 1]}" unless first_line
m << "#{indicator}#{lines[line_numer]}"
m << "#{indent}#{lines[line_numer + 1]}" unless last_line
m << "\n" unless m.end_with?("\n")
m << "#{indent}-------------------------------------------\n"
end
end
private
def parse_line_number_from_description
description = self.description
if dsl_path && description =~ /((#{Regexp.quote File.expand_path(dsl_path)}|#{Regexp.quote dsl_path.to_s}):\d+)/
trace_line = Regexp.last_match[1]
description = description.sub(/#{Regexp.quote trace_line}:\s*/, "").sub("\n", " - ")
end
[trace_line, description]
end
end
end
end