add func get_env, set_env

add onAttach for env
7 years ago · a5484d933c
8 changed files with 88 additions and 3 deletions
--- a/2
+++ b/2
@ -4,5 +4,7 @@ export(chrome_dump_pdf)
 export(chrome_read_html)
 export(chrome_shot)
 export(chrome_version)
+export(get_env)
+export(set_env)
 import(magick)
 import(xml2)
--- a/R/env.R
+++ b/R/env.R
@ -0,0 +1,22 @@
+#' get an envrionment variable `HEADLESS_CHROME`
+#'
+#' @md
+#' @note This only return an envrionment variable `HEADLESS_CHROME`.
+#' @export
+#' @examples
+#' get_env()
+get_env <- function() {
+  Sys.getenv("HEADLESS_CHROME")
+}
+
+#' set an envrionment variable `HEADLESS_CHROME`
+#'
+#' @md
+#' @note This only grabs the `<body>` `innerHTML` contents
+#' @param env path of chrome execute file for an envrionment variable `HEADLESS_CHROME`
+#' @export
+#' @examples
+#' set_env("C:/Program Files/Google/Chrome/Application/chrome.exe")
+set_env <- function(env=Sys.getenv("HEADLESS_CHROME")) {
+  Sys.setenv(HEADLESS_CHROME=env)
+}
--- a/R/onAttach.R
+++ b/R/onAttach.R
@ -0,0 +1,15 @@
+.onAttach <- function(libname, pkgname) {
+  if (interactive()) {
+    if ( unname(Sys.info()["sysname"] == "Windows") ){
+      if ( unname(Sys.info()["machine"] == "x86-64") ) {
+        Sys.setenv(HEADLESS_CHROME="C:/Program Files (x86)/Google/Chrome/Application/chrome.exe")
+      } else {
+        Sys.setenv(HEADLESS_CHROME="C:/Program Files/Google/Chrome/Application/chrome.exe")
+      }
+    }
+    if ( unname(Sys.info()["sysname"] == "Darwin") ){
+      Sys.setenv(HEADLESS_CHROME="/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome")
+    }
+    # check other os
+  }
+}
--- a/R/version.r
+++ b/R/version.r
@ -1,4 +1,9 @@
 #' Get Chrome version
 #'
+#' @md
 #' @export
-chrome_version <- function(x) { system2(chrome_bin, "--version") }
+#' @examples
+#' chrome_version()
+chrome_version <- function() {
+  system2(chrome_bin, "--version")
+}
--- a/README.Rmd
+++ b/README.Rmd
@ -13,9 +13,10 @@ for the 'DevTools' instrumentation 'API' or the forthcoming 'phantomjs'-like hig
 ### IMPORTANT

 This pkg will eventually do much under the covers to find the location of the Chrome binary
-on all operating systems. For now, you'll need to set an envrionment variable `HEADLESS_CHROME` to one of these two values:
+on all operating systems. For now, you'll need to set an envrionment variable `HEADLESS_CHROME` to one of these values:

- Windows: `C:\Program Files\Google\Chrome\Application\chrome.exe`
+- Windows(32bit): `C:/Program Files/Google/Chrome/Application/chrome.exe`
+- Windows(64bit): `C:/Program Files (x86)/Google/Chrome/Application/chrome.exe`
 - macOS: `/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome`

 Linux folks will know where their binary is (many of you use non-default locations for things).
--- a/man/chrome_version.Rd
+++ b/man/chrome_version.Rd
@ -9,3 +9,6 @@ chrome_version(x)
 \description{
 Get Chrome version
 }
+\examples{
+chrome_version()
+}
--- a/man/get_env.Rd
+++ b/man/get_env.Rd
@ -0,0 +1,17 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/env.R
+\name{get_env}
+\alias{get_env}
+\title{get an envrionment variable \code{HEADLESS_CHROME}}
+\usage{
+get_env()
+}
+\description{
+get an envrionment variable \code{HEADLESS_CHROME}
+}
+\note{
+This only return an envrionment variable \code{HEADLESS_CHROME}.
+}
+\examples{
+get_env()
+}
--- a/man/set_env.Rd
+++ b/man/set_env.Rd
@ -0,0 +1,20 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/env.R
+\name{set_env}
+\alias{set_env}
+\title{set an envrionment variable \code{HEADLESS_CHROME}}
+\usage{
+set_env(env = Sys.getenv("HEADLESS_CHROME"))
+}
+\arguments{
+\item{env}{path of chrome execute file for an envrionment variable \code{HEADLESS_CHROME}}
+}
+\description{
+set an envrionment variable \code{HEADLESS_CHROME}
+}
+\note{
+This only grabs the \code{<body>} \code{innerHTML} contents
+}
+\examples{
+set_env("C:/Program Files/Google/Chrome/Application/chrome.exe")
+}