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uri.rb
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uri.rb
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require 'addressable/uri'
module Gitable
class URI < Addressable::URI
SCP_REGEXP = %r|^([^:/?#]+):([^:?#]*)$|
URIREGEX = %r|^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$|
##
# Parse a git repository URI into a URI object.
#
# @param [Addressable::URI, #to_str] uri URI of a git repository.
#
# @return [Gitable::URI, nil] the URI object or nil if nil was passed in.
#
# @raise [TypeError] The uri must respond to #to_str.
# @raise [Gitable::URI::InvalidURIError] When the uri is *total* rubbish.
#
def self.parse(uri)
return nil if uri.nil?
return uri.dup if uri.kind_of?(self)
# Copied from Addressable to speed up our parsing.
#
# If a URI object of the Ruby standard library variety is passed,
# convert it to a string, then parse the string.
# We do the check this way because we don't want to accidentally
# cause a missing constant exception to be thrown.
if uri.class.name =~ /^URI\b/
uri = uri.to_s
end
# Otherwise, convert to a String
begin
uri = uri.to_str
rescue TypeError, NoMethodError
raise TypeError, "Can't convert #{uri.class} into String."
end if not uri.is_a? String
# This Regexp supplied as an example in RFC 3986, and it works great.
fragments = uri.scan(URIREGEX)[0]
scheme = fragments[1]
authority = fragments[3]
path = fragments[4]
query = fragments[6]
fragment = fragments[8]
host = nil
if authority
host = authority.gsub(/^([^\[\]]*)@/, '').gsub(/:([^:@\[\]]*?)$/, '')
else
authority = scheme
end
if host.nil? && uri =~ SCP_REGEXP
Gitable::ScpURI.new(:authority => $1, :path => $2)
else
new(
:scheme => scheme,
:authority => authority,
:path => path,
:query => query,
:fragment => fragment
)
end
end
##
# Parse a git repository URI into a URI object.
# Rescue parse errors and return nil if uri is not parseable.
#
# @param [Addressable::URI, #to_str] uri URI of a git repository.
#
# @return [Gitable::URI, nil] The parsed uri, or nil if not parseable.
def self.parse_when_valid(uri)
parse(uri)
rescue TypeError, Gitable::URI::InvalidURIError
nil
end
##
# Attempts to make a copied URL bar into a git repository URI.
#
# First line of defense is for URIs without .git as a basename:
# * Change the scheme from http:// to git://
# * Add .git to the basename
#
# @param [Addressable::URI, #to_str] uri URI of a git repository.
#
# @return [Gitable::URI, nil] the URI object or nil if nil was passed in.
#
# @raise [TypeError] The uri must respond to #to_str.
# @raise [Gitable::URI::InvalidURIError] When the uri is *total* rubbish.
#
def self.heuristic_parse(uri)
return uri if uri.nil? || uri.kind_of?(self)
# Addressable::URI.heuristic_parse _does_ return the correct type :)
gitable = super # boo inconsistency
if gitable.github? || gitable.bitbucket? || gitable.gitlab?
gitable.extname = "git"
end
gitable
end
# Is this uri a github uri?
#
# @return [Boolean] github.com is the host?
def github?
!!normalized_host.to_s.match(/\.?github.com$/)
end
# Is this uri a gitlab uri?
#
# @return [Boolean] gitlab.com is the host?
def gitlab?
!!normalized_host.to_s.match(/\.?gitlab.com$/)
end
# Is this uri a bitbucket uri?
#
# @return [Boolean] bitbucket.org is the host?
def bitbucket?
!!normalized_host.to_s.match(/\.?bitbucket.org$/)
end
# Create a web link uri for repositories that follow the github pattern.
#
# This probably won't work for all git hosts, so it's a good idea to use
# this in conjunction with #github? or #bitbucket? to help ensure correct
# links.
#
# @param [String] Scheme of the web uri (smart defaults)
# @return [Addressable::URI] https://#{host}/#{path_without_git_extension}
def to_web_uri(uri_scheme='https')
return nil if normalized_host.to_s.empty?
Addressable::URI.new(:scheme => uri_scheme, :host => normalized_host, :port => normalized_port, :path => normalized_path.sub(%r#\.git/?$#, ''))
end
# Tries to guess the project name of the repository.
#
# @return [String] Project name without .git
def project_name
basename.sub(/\.git\/?$/,'')
end
def org_project
normalized_path.sub(/^\//,'').sub(/\.git\/?$/,'')
end
# Detect local filesystem URIs.
#
# @return [Boolean] Is the URI local
def local?
inferred_scheme == 'file'
end
# Scheme inferred by the URI (URIs without hosts or schemes are assumed to be 'file')
#
# @return [Boolean] Is the URI local
def inferred_scheme
if normalized_scheme == 'file' || (normalized_scheme.to_s.empty? && normalized_host.to_s.empty?)
'file'
else
normalized_scheme
end
end
# Detect URIs that connect over ssh
#
# @return [Boolean] true if the URI uses ssh?
def ssh?
!!normalized_scheme.to_s.match(/ssh/)
end
# Is this an scp formatted uri? (No, always)
#
# @return [false] always false (overridden by scp formatted uris)
def scp?
false
end
# Detect URIs that will require some sort of authentication
#
# @return [Boolean] true if the URI uses ssh or has a user but no password
def authenticated?
ssh? || interactive_authenticated?
end
# Detect URIs that will require interactive authentication
#
# @return [Boolean] true if the URI has a user, but is not using ssh
def interactive_authenticated?
!ssh? && (!normalized_user.nil? && normalized_password.nil?)
end
# Detect if two URIs are equivalent versions of the same uri.
#
# When both uris are github repositories, uses a more lenient matching
# system is used that takes github's repository organization into account.
#
# For non-github URIs this method requires the two URIs to have the same
# host, equivalent paths, and either the same user or an absolute path.
#
# @return [Boolean] true if the URI probably indicates the same repository.
def equivalent?(other_uri)
other = Gitable::URI.parse_when_valid(other_uri)
return false unless other
return false unless normalized_host.to_s == other.normalized_host.to_s
if github? || bitbucket?
# github doesn't care about relative vs absolute paths in scp uris
org_project == other.org_project
else
# if the path is absolute, we can assume it's the same for all users (so the user doesn't have to match).
normalized_path.sub(/\/$/,'') == other.normalized_path.sub(/\/$/,'') &&
(path[0] == '/' || normalized_user == other.normalized_user)
end
end
# Dun da dun da dun, Inspector Gadget.
#
# @return [String] I'll get you next time Gadget, NEXT TIME!
def inspect
"#<#{self.class.to_s} #{to_s}>"
end
# Set an extension name, replacing one if it exists.
#
# If there is no basename (i.e. no words in the path) this method call will
# be ignored because it is likely to break the uri.
#
# Use the public method #set_git_extname unless you actually need some other ext
#
# @param [String] New extension name
# @return [String] extname result
def extname=(new_ext)
return nil if basename.to_s.empty?
self.basename = "#{basename.sub(%r#\.git/?$#, '')}.#{new_ext.sub(/^\.+/,'')}"
extname
end
# Set the '.git' extension name, replacing one if it exists.
#
# If there is no basename (i.e. no words in the path) this method call will
# be ignored because it is likely to break the uri.
#
# @return [String] extname result
def set_git_extname
self.extname = "git"
end
# Addressable does basename wrong when there's no basename.
# It returns "/" for something like "http://host.com/"
def basename
super == "/" ? "" : super
end
# Set the basename, replacing it if it exists.
#
# @param [String] New basename
# @return [String] basename result
def basename=(new_basename)
base = basename
if base.to_s.empty?
self.path += new_basename
else
rpath = normalized_path.reverse
# replace the last occurrence of the basename with basename.ext
self.path = rpath.sub(%r|#{Regexp.escape(base.reverse)}|, new_basename.reverse).reverse
end
basename
end
end
end
require 'gitable/scp_uri'