add a default google project to help with #81

.Rbuildignore

@@ -15,3 +15,4 @@ test_signedurls.RData
 ^_pkgdown\.yml$
 ^_gcssave\.yaml$
 ^.Rhistory$
+^gcs\.oauth$

.gitignore

@@ -5,3 +5,4 @@
 .httr-oauth-SUSPENDED
 inst/doc
 auth.json
+gcs.oauth

NEWS.md

@@ -1,6 +1,7 @@
 # googleCloudStorage 0.4.0.9000
 
 * Make `gcs_auth()` more forgiving
+* Add a default google cloud project
 
 # googleCloudStorageR 0.4.0
 

R/options.R

@@ -5,9 +5,19 @@
 }
 
 .onAttach <- function(libname, pkgname){
-
-  attempt <- try(googleAuthR::gar_attach_auto_auth("https://www.googleapis.com/auth/devstorage.full_control",
-                                    environment_var = "GCS_AUTH_FILE"))
+
+  suppressMessages(
+    googleAuthR::gar_set_client(system.file("client","googleAuthR_nobilling_client.json",
+                                          package = "googleCloudStorageR"),
+                              scopes = "https://www.googleapis.com/auth/devstorage.full_control")
+    )
+
+  options(googleAuthR.httr_oauth_cache = "gcs.oauth")
+
+  attempt <- try(
+    googleAuthR::gar_attach_auto_auth("https://www.googleapis.com/auth/devstorage.full_control",
+                                      environment_var = "GCS_AUTH_FILE")
+    )
 
   if(inherits(attempt, "try-error")){
     warning("Problem using auto-authentication when loading from GCS_AUTH_FILE: \n", attempt, "

inst/client/googleAuthR_nobilling_client.json

@@ -0,0 +1 @@
+{"installed":{"client_id":"201908948134-rm1ij8ursrfcbkv9koc0aqver84b04r7.apps.googleusercontent.com","project_id":"g-auth-r","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://accounts.google.com/o/oauth2/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_secret":"nksRJZ5K3nm9FUWsAtBoBArz","redirect_uris":["urn:ietf:wg:oauth:2.0:oob","http://localhost"]}}

vignettes/googleCloudStorageR.Rmd

@@ -31,29 +31,11 @@ Sys.setenv("GCS_CLIENT_ID" = "mykey",
 
 These can alternatively be set on the command line or via an Renviron.site or .Renviron file (`https://cran.r-project.org/web/packages/httr/vignettes/api-packages.html`).
 
-## Authentication
 
-Authentication can be carried out each session via `gcs_auth`.  The first time you run this you will be sent to a Google login prompt in your browser to allow the `googleCloudStorageR` project access (or the Google project you configure). 
-
-Once authenticated a file named `.httr-oauth` is saved to your working directory.  On subsequent authentication this file will hold your authentication details, and you won't need to go via the browser.  Deleting this file, or setting `new_user=TRUE` will start the authentication flow again.
-
-```r
-library(googleCloudStorageR)
-## first time this will send you to the browser to authenticate
-gcs_auth()
-
-## to authenticate with a fresh user, delete .httr-oauth or run with new_user=TRUE
-gcs_auth(new_user = TRUE)
-
-...call functions...etc...
-
-```
-
-Each new R session will need to run `gcs_auth()` to authenticate future API calls.
 
 ### Auto-authentication
 
-Alternatively, you can specify the location of a service account JSON file taken from your Google Project, or the location of a previously created `.httr-oauth` token in a system environment:
+The best method for authentication is to use your own Google Cloud Project.  You can specify the location of a service account JSON file taken from your Google Project, or the location of a previously created `gcs.oauth` token in a system environment:
 
         Sys.setenv("GCS_AUTH_FILE" = "/fullpath/to/auth.json")
 
@@ -65,9 +47,30 @@ library(googleCloudStorageR)
 
 ## no need for gcs_auth()
 gcs_get_bucket("your-bucket")
+```
+
+If using your own `gcs.oauth` file you will also need to set the client ID and secret.  This is easiest done using `googleAuthR::gar_set_client()` - see its help for details. 
+
+## Manual Authentication
+
+Authentication can be carried out each session via `gcs_auth`.  The first time you run this you will be sent to a Google login prompt in your browser to allow the `googleCloudStorageR` project access (or the Google project you configure). 
+
+Once authenticated a file named `gcs.oauth` is saved to your working directory.  On subsequent authentication this file will hold your authentication details, and you won't need to go via the browser.  Deleting this file, or setting `new_user=TRUE` will start the authentication flow again.
+
+```r
+library(googleCloudStorageR)
+## first time this will send you to the browser to authenticate
+gcs_auth()
+
+## to authenticate with a fresh user, delete gcs.oauth or run with new_user=TRUE
+gcs_auth(new_user = TRUE)
+
+...call functions...etc...
 
 ```
 
+Each new R session will need to run `gcs_auth()` to authenticate future API calls.
+
 ## Examples
 
 ### Setting a default Bucket