There's an ENV variable we all know. It returns an Object. But the return value of ENV is visually similar to a Hash. But it's really not.
For example:
> ENV
=> {"SHELL"=>"/bin/bash", "SESSION_MANAGER"=>"local/archlinux:#/tmp/.ICE-unix/613,unix/archlinux:/tmp/.ICE-unix/613", "COLORTERM"=>"truecolor", "XDG_CONFIG_DIRS"=>"/etc/xdg", "XDG_MENU_PREFIX"=>"xfce-", "SSH_AUTH_SOCK"=>"/tmp/ssh-Al0pdO1R5970/agent.622", "DESKTOP_SESSION"=>"Xfce Session", "SSH_AGENT_PID"=>"623", "GTK_MODULES"=>"canberra-gtk-module:canberra-gtk-module", "XDG_SEAT"=>"seat0", "PWD"=>"/home/sourav", "LOGNAME"=>"sourav", "XDG_SESSION_TYPE"=>"x11", "XAUTHORITY"=>"/home/sourav/.Xauthority", "HOME"=>"/home/sourav", "LANG"=>"en_GB.UTF-8", "XDG_CURRENT_DESKTOP"=>"XFCE", "VTE_VERSION"=>"5603", "INVOCATION_ID"=>"6d4dc7a91cc141e691436cb850e18f8d", "GLADE_CATALOG_PATH"=>":", "XDG_SESSION_CLASS"=>"user", "TERM"=>"xterm-256color", "USER"=>"sourav", "DISPLAY"=>":0.0", "SHLVL"=>"2", "XDG_VTNR"=>"1", "XDG_SESSION_ID"=>"1", "TILIX_ID"=>"f2480263-263e-408f-be36-8105e71256a6", "MOZ_PLUGIN_PATH"=>"/usr/lib/mozilla/plugins", "GLADE_MODULE_PATH"=>":", "XDG_RUNTIME_DIR"=>"/run/user/1000", "GLADE_PIXMAP_PATH"=>":", "JOURNAL_STREAM"=>"9:25041", "XDG_DATA_DIRS"=>"/usr/local/share:/usr/share", "PATH"=>"/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:/home/sourav/.rvm/bin:/home/sourav/.rvm/bin:/home/sourav/.gem/ruby/2.6.0/bin", "DBUS_SESSION_BUS_ADDRESS"=>"unix:path=/run/user/1000/bus", "MAIL"=>"/var/spool/mail/sourav", "_"=>"/home/sourav/.irb", "LINES"=>"24", "COLUMNS"=>"80"}
Which looks similar to:
> ENV.to_h
=> {"SHELL"=>"/bin/bash", "SESSION_MANAGER"=>"local/archlinux:#/tmp/.ICE-unix/613,unix/archlinux:/tmp/.ICE-unix/613", "COLORTERM"=>"truecolor", "XDG_CONFIG_DIRS"=>"/etc/xdg", "XDG_MENU_PREFIX"=>"xfce-", "SSH_AUTH_SOCK"=>"/tmp/ssh-Al0pdO1R5970/agent.622", "DESKTOP_SESSION"=>"Xfce Session", "SSH_AGENT_PID"=>"623", "GTK_MODULES"=>"canberra-gtk-module:canberra-gtk-module", "XDG_SEAT"=>"seat0", "PWD"=>"/home/sourav", "LOGNAME"=>"sourav", "XDG_SESSION_TYPE"=>"x11", "XAUTHORITY"=>"/home/sourav/.Xauthority", "HOME"=>"/home/sourav", "LANG"=>"en_GB.UTF-8", "XDG_CURRENT_DESKTOP"=>"XFCE", "VTE_VERSION"=>"5603", "INVOCATION_ID"=>"6d4dc7a91cc141e691436cb850e18f8d", "GLADE_CATALOG_PATH"=>":", "XDG_SESSION_CLASS"=>"user", "TERM"=>"xterm-256color", "USER"=>"sourav", "DISPLAY"=>":0.0", "SHLVL"=>"2", "XDG_VTNR"=>"1", "XDG_SESSION_ID"=>"1", "TILIX_ID"=>"f2480263-263e-408f-be36-8105e71256a6", "MOZ_PLUGIN_PATH"=>"/usr/lib/mozilla/plugins", "GLADE_MODULE_PATH"=>":", "XDG_RUNTIME_DIR"=>"/run/user/1000", "GLADE_PIXMAP_PATH"=>":", "JOURNAL_STREAM"=>"9:25041", "XDG_DATA_DIRS"=>"/usr/local/share:/usr/share", "PATH"=>"/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:/home/sourav/.rvm/bin:/home/sourav/.rvm/bin:/home/sourav/.gem/ruby/2.6.0/bin", "DBUS_SESSION_BUS_ADDRESS"=>"unix:path=/run/user/1000/bus", "MAIL"=>"/var/spool/mail/sourav", "_"=>"/home/sourav/.irb", "LINES"=>"24", "COLUMNS"=>"80"}
But:
> ENV.to_h.eql?(ENV)
=> false
So what kind of object does ENV return?
It's a custom Object with Hash-like functionality mostly implemented in C.
https://github.com/ruby/ruby/blob/trunk/hash.c#L4944
There is nothing in the Ruby Language Specification that requires ENV to be implemented in any particular way. As long as it responds to the right messages in the right way, it can be anything it wants.
For example, in Rubinius, ENV is implemented in a class called Rubinius::EnvironmentVariables that implements part of the Hash protocol and also mixes in Enumerable: https://github.com/rubinius/rubinius/blob/master/core/env.rb .
I'm running a test, and I'm getting an unexpected error.
I'm sorting the results:
docs.sort((a, b) => m_ids.findIndex(id => a._id.equals(id)) -
m_ids.findIndex(id => b._id.equals(id)));
The error I'm getting is definitely related to that line
mbp:test testlab$ mocha .
/Users/testlab/Documents/workspace/KBase/controller/KBase.js:112
docs.sort((a, b) => m_ids.findIndex(id => a._id.equals(id)) -
^^
SyntaxError: Unexpected token =>
I was thinking about skipping the code by putting an if statement around it, but that doesn't seem to work either.
I rewrote the sort to not use =>, so it is working on the webpage and it is working on chai/mocha now.
I want to check that Pandoc.convert is called with to: :docx option like this:
options = {to: :docx}
PandocRuby.convert("some string", options)
I have the following expectation in a spec:
expect(PandocRuby).to receive(:convert).with(hash_including(to: :docx))
The spec fails like this:
Failure/Error: expect(PandocRuby).to receive(:convert).with(hash_including(to: :docx))
(PandocRuby (class)).convert(hash_including(:to=>:docx))
expected: 1 time with arguments: (hash_including(:to=>:docx))
received: 0 times
But when debugging, options is like this:
[2] pry(#<ReportDocumentsController>)> options
=> {
:to => :docx,
:reference_docx => "/Users/josh/Documents/Work/Access4All/Projects/a4aa2/src/public/uploads/report_template/reference_docx/1/reference.docx"
}
I think I'm using the wrong RSpec matcher (or the right one in the wrong way), but I can't get it working.
You just need to expect all of the method arguments:
expect(PandocRuby).to receive(:convert).with("some string", hash_including(to: :docx))
Or you could use a matcher to be less specific about the first argument, e.g.
expect(PandocRuby).to receive(:convert).with(an_instance_of(String), hash_including(to: :docx))
I've been searching around for a bit and couldn't find anything that really helped me. Especially because sometimes things don't seem to be consistant.
I have the following YAML that I use to store data/ configuration stuff:
---
global:
name: Core Config
cfg_version: 0.0.1
databases:
main_database:
name: Main
path: ~/Documents/main.reevault
read_only: false
...
I know how to update fields with:
cfg = YAML.load_file("test.yml")
cfg['global']['name'] = 'New Name'
File.open("test.yml", "w"){ |f| YAML.dump(cfg, f) }
And that's essentially everybody on the internet talks about. However here is my problem: I want to dynamically be able to add new fields to that file. e.g. under the "databases" section have a "secondary_db" field with it's own name, path and read_only boolean. I would have expected to do that by just adding stuff to the hash:
cfg['global']['databases']['second_db'] = nil
cfg['global']['databases']['second_db']['name'] = "Secondary Database"
cfg['global']['databases']['second_db']['path'] = "http://someurl.remote/blob/db.reevault"
cfg['global']['databases']['second_db']['read_only'] = "true"
File.open("test.yml", "w"){ |f| YAML.dump(cfg, f) }
But I get this error:
`<main>': undefined method `[]=' for nil:NilClass (NoMethodError)
My question now is: how do I do this? Is there a way with the YAML interface? Or do I have to write stuff into the file manually? I would prefer something via the YAML module as it takes care of formatting/ indentation for me.
Hope someone can help me.
Yo have to initialize cfg['global']['database']['second_db'] to be a hash not nil. Try this cfg['global']['database']['second_db'] = {}
In ruby how to convert the follwing into valid json
"{\"transferType\"=>\"D\", \"accountNumber\"=>\"123\", \"employeeId\"=>\"12\", \"districtNumber\"=>\"15\", \"orderedBy\"=>\"vbcb\", \"department\"=>\"vghghj\", \"po\"=>\"23434\", \"Phone\"=>\"4542433435\", \"Instructions\"=>\"vbvcnvbnb\"}"
The class of above is string. Because Without proper Json conversion i am problem like
Javascript replace for equal symbol
First of all you should make this in to proper JSON format. So replace the => in to :
and then try JSON.load or JSON.parse will work successfully.
2.2.3 :015 > data
=> "{\"transferType\"=>\"D\", \"accountNumber\"=>\"123\", \"employeeId\"=>\"12\", \"districtNumber\"=>\"15\", \"orderedBy\"=>\"vbcb\", \"department\"=>\"vghghj\", \"po\"=>\"23434\", \"Phone\"=>\"4542433435\", \"Instructions\"=>\"vbvcnvbnb\"}"
2.2.3 :016 > JSON.parse(data.gsub("=>", ":"))
=> {"transferType"=>"D", "accountNumber"=>"123", "employeeId"=>"12", "districtNumber"=>"15", "orderedBy"=>"vbcb", "department"=>"vghghj", "po"=>"23434", "Phone"=>"4542433435", "Instructions"=>"vbvcnvbnb"}
from the result you can do anything what do you want :)