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How to modify nested list values in R

modify_in_maybe <- function(.x, .where, .f, ...) { .where <- as.list(.where) .f <- rlang::as_function(.f) current_value <- purrr::pluck(.x, !!!.where) replacement <- .f(current_value, ...) if (is.null(current_value)) return(.x) purrr::assign_in(.x, .where, replacement) } list(root = list(nesting = list(leaf = 2))) %>% modify_in_maybe(c("root", "nesting", "leaf"), ~.x + .x) list(list(root = list(nesting = list(leaf = 2))), list(root = list(nesting = list()))) %>% map(modify_in_maybe, c("root", "nesting", "leaf"), ~.x + .x)

#r #json #purrr

How to format timelines with formattable in R

library(formattable) library(htmltools) timeline_widget <- function(start, duration, label, error_message, is_outgoing_call) { mapply(function(start, duration, label, error_message, is_outgoing_call) { doRenderTags( div(class = "timeline-widget", style = style(display = "grid", `grid-template-columns` = "fit-content(100px) fit-content(1500px)", `grid-column-gap` = "5px"), list( span(class = "timeline-marker", style = style(`margin-left` = paste0(round(start * 3) + 10, "px"), `min-width` = '1px', width = paste0(round(duration * 3), "px"), `background-color` = csscolor("#FA614B66")), HTML(" ")), span(class = "timeline-label", style = style(`marging-left` = "5px", `font-weight` = ifelse(!is_outgoing_call, "bold", NA), color = ifelse(!is.na(error_message), "red", NA)), label)))) }, start, duration, label, error_message, is_outgoing_call, SIMPLIFY = FALSE) }

data %>% formattable(list( timeline = ~timeline_widget(timeline_start, timeline_duration, timeline_label, error, outgoing), ) )

#formattable #r

How to flatten json in R with tidyjson

library(dplyr) library(tidyjson) read_json("file.json") %>% # change it select(-document.id) %>% enter_object(nestedElement1, nestedElement2, arrayElement) %>% # change it gather_array("document.id") %>% json_structure %>% filter(type != "object" & type != "array" & type != "null") %>% mutate(path = sapply(seq, function(i) paste(i, collapse = ".")), value = ..JSON) %>% select(matches("document.id|path|value")) %>% as_tibble() %>% pivot_wider(names_from = path, values_from = value) %>% mutate(across(everything(), ~unlist(replace_na(., NA)))) %>% identity -> result

#r #tidyjson

How to pivot key values list longer and wider in R

pivot_key_values_longer <- function(data, prefix, names_from, values_from) { array_path_regex <- paste0("^(", prefix, ")\\.([0-9]+)\\.(", names_from, "|", values_from, ")$") index_prefixed_array_path_regex <- paste0("^([0-9]+)\\.(", prefix, "\\.(?:", names_from, "|", values_from, "))$") data %>% rename_with(~gsub(array_path_regex, "\\2.\\1.\\3", .x), matches(array_path_regex)) %>% pivot_longer(matches(index_prefixed_array_path_regex), names_to = c(paste0(prefix, ".id"), ".value"), names_pattern = index_prefixed_array_path_regex) } pivot_key_values_wider <- function(data, prefix, names_from, values_from) { data %>% pivot_wider( id_cols = !matches(paste0("^(", prefix, ")\\.(", names_from, "|", values_from, "|id)$")), values_fn = unique, names_from = paste0(prefix, ".", names_from), values_from = paste0(prefix, ".", values_from), names_prefix = paste0(prefix, ".") ) } pivot_list_wider <- function(data, prefix, names_from, values_from) { data %>% pivot_key_values_longer(prefix, names_from, values_from) %>% pivot_key_values_wider(prefix, names_from, values_from) }

#r

Introducing RSpector plugin for RubyMine

Enhanced RSpec Support for RubyMine

Find Usages on let variables

Go to Declaration or Usages on let variables

Refactor | Rename... of let variable names and usages

https://github.com/srizzo/rspector-rubymine-plugin

#rubymine #RSpec #ruby

Introducing CodeBuddy plugin for IntelliJ

Enhanced text editing capabilities, inspired by TextMate. Some of the features

Dialog-less Find & Replace

Use Selection for Find

Use Selection for Replace

Find All

Replace

Replace All in Selection

Text Selection

Select Paragraph

Select Enclosing Typing Pairs

Text Manipulation

Twiddle

https://plugins.jetbrains.com/plugin/16252-codebuddy

#intellij idea #rubymine #textmate

How to tunnel AWS RDS to a local machine through a Kubernetes cluster with an ad hoc bastion host

Start the bastion host:

TUNNEL_HOST=[rds_endpoint] TUNNEL_PORT=[rds_port]; kubectl --restart=Never run -it --rm --port=$TUNNEL_PORT --image=alpine/socat:1.0.3 rds-tunnel TCP-LISTEN:$TUNNEL_PORT,fork TCP:$TUNNEL_HOST:$TUNNEL_PORT

Start port forward:

while true; do kubectl port-forward rds-tunnel [rds_port]:[rds_port]; done

#kubernetes #aws

How to capture/record XHR requests on Cypress

Cypress.Commands.add('recordXHR', (method = 'GET', url = /.*/) => { return cy.route({ url: url, method: method, onResponse: function (xhr) { const destFilename = Cypress._.capitalize(xhr.method.toLowerCase()) + xhr.url .slice(Cypress.config().baseUrl.length + 1) .split('/') .map((part) => Cypress._.capitalize(part)) .join('') + '.json'; const xhrOptions = { url: xhr.url, method: xhr.method, status: xhr.response.status, headers: xhr.response.headers, response: xhr.response.body }; cy.now('writeFile', 'cypress/xhr/' + destFilename, xhrOptions, { log: false }); } }); });

#cypress #javascript

How to use environment variables to config gcloud SDK

Find available properties with:

gcloud config --help

Set environment variable with this format:

CLOUDSDK_[SECTION]_[PROPERTY]

Source: https://medium.com/@nieldw/using-environment-variables-to-set-gcloud-config-9eb2da7666e7

#google cloud

How to have project dependent Jupyter Notebook configuration scripts

1 - Create a startup script that will check for a .jupyternotebookrc file:

# ~/.ipython/profile_default/startup/run_jupyternotebookrc.py import os import sys if 'ipykernel' in sys.modules: # hackish way to check whether it's running a notebook path = os.getcwd() while path != "/" and ".jupyternotebookrc" not in os.listdir(path): path = os.path.abspath(path + "/../") full_path = os.path.join(path, ".jupyternotebookrc") if os.path.exists(full_path): get_ipython().run_cell(open(full_path).read(), store_history=False)

2 - Create a configuration file in your project with the code you'd like to run:

# .jupyternotebookrc in any folder or parent folder of the notebook %load_ext jupytersourcemagic %load_ext jupyterserverwidget %load_ext jupyternotify %load_ext dotenv %dotenv .env -o %dotenv .env.development -o

#jupyter notebook

Introducing Jupyter Source: A Jupyter Notebook %%magic to quickly edit and run source code

https://github.com/srizzo/jupyter-source-magic

#jupyter notebook #data science

Introducing Jupyter Server Widget: Jupyter Notebook %%magics and Widget to start and stop servers from a Cell

https://github.com/srizzo/jupyter-server-widget

#jupyter notebook #data science

Introducing Jupyter Live Magic: A Jupyter Notebook %%magic for periodic auto re-run and refresh of Cells

https://github.com/srizzo/jupyter-live-magic

#jupyter notebook #data science

How to edit jupyter notebook cells in an external editor

Adapted from https://stackoverflow.com/questions/28309430/edit-ipython-cell-in-an-external-editor

// ~/.jupyter/custom/custom.js IPython.keyboard_manager.command_shortcuts.add_shortcut('e', { handler : function (event) { var input = IPython.notebook.get_selected_cell().get_text(); var pre_cursor_text = [""] if (IPython.notebook.get_selected_cell().get_pre_cursor()) { pre_cursor_text = IPython.notebook.get_selected_cell().get_pre_cursor().split("\n") } var line = pre_cursor_text.length var col = pre_cursor_text[pre_cursor_text.length - 1].length + 1 var cmd = "f = open('.jupyter-tmp-cell-content.py', 'w');f.close()"; if (input != "") { cmd = '%%writefile .jupyter-tmp-cell-content.py\n' + input; } IPython.notebook.kernel.execute(cmd); cmd = "import os;os.system('mate -w .jupyter-tmp-cell-content.py -l " + line + ":" + col + "');f = open('.jupyter-tmp-cell-content.py', 'r');print(f.read())"; function handle_output(msg) { var ret = msg.content.text; IPython.notebook.get_selected_cell().set_text(ret); } var callback = {'output': handle_output}; IPython.notebook.kernel.execute(cmd, {iopub: callback}, {silent: false}); return false; }} );

#jupyter notebook #data science

How to find potentially unused ruby classes

Note: first "cd app" and make sure your tests/specs folder are not also scanned

ag --ruby --nofilename -o --match '(?<=class )[A-Z][a-zA-Z0-9_!$?]+' | sort | uniq | xargs -I '{}' ag --ruby --nofilename --case-sensitive -o --match '\b{}\b' | sort | uniq -u

How to find potentially unused ruby methods

Note: first "cd app" and make sure your tests/specs folder are not also scanned

ag --ruby --nofilename -o --match '(?<=def )[a-zA-Z0-9_!$?]+' | sort | uniq | sed s/?/\\\\\\\\?/g | xargs -I '{}' ag --ruby --nofilename --case-sensitive -o --match '\b{}(?![a-zA-Z0-9_!$?])' | sort | uniq -u

How to use relative paths in bash / shell scripts

From http://mywiki.wooledge.org/BashFAQ/028

cd "${BASH_SOURCE%/*}" || exit read somevar < etc/somefile

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