Bad setup_gama path directory

[RoiArthurB]

Hi !

Bug

I tried to install gamar on R-Studio and the initialisation failed.. I'm using Ubuntu 18.04 LTS and the gamar's function setup_gama isn't working properly :

> setup_gama("/home/gama/.local/bin/GAMA1.8.0")
Error in file(con, "r") : cannot open the connection
In addition: Warning message:
In file(con, "r") :
  cannot open file '/home/gama/.local/bin/GAMA1.8.0/Contents/Eclipse/Configuration/config.ini': No such file or directory

The problem is that the auto-path used to find the config.ini file is that MacOS path and not the linux one, the correct path on Linux is /home/gama/.local/bin/GAMA1.8.0/configuration/config.ini

Desktop (please complete the following information):

• OS: Ubuntu 18.04 LTS
• GAMAR version: git autoinstall
• GAMA version: 1.8.0

Workaround
A quick solution is to create a symlink to the correct location :

$ cd /path/to/gama
$ # Create folders for path
$ mkdir -p ./Contents/Eclipse/Configuration
$ # Create symlink
$ ln -s /full/path/to/gama/configuration/config.ini ./Contents/Eclipse/Configuration/config.ini

[virgile-baudrot]

It seems to be the path in function gama_version within zzz.R

So change from this:

gama_version <- function(path) {
  v_info <- readLines(
    paste0(path, "/Contents/Eclipse/Configuration/config.ini'"))
  v_info <- v_info[10]
  v_info <- gsub("[[:alpha:]]|=", "", v_info)
  v_info <- as.numeric(v_info)
} 

to:

gama_version <- function(path) {
  os <- paste0(get_os())
  subpath <- ifelse(os == "Darwin", "/Contents/Eclipse", "")
  v_info <- readLines(
    paste0(path,  "/configuration/config.ini"))
  v_info <- v_info[10]
  v_info <- gsub("[[:alpha:]]|=", "", v_info)
  v_info <- as.numeric(v_info)
}

should solve it.
I'm also curious it's working for MacOS since it's a lowercase "C" in "configuration" folder name (no case sensitive?).

Also, the function .onAttach cannot check version > 1.8. The change I proposed in  gama_version() does not solve it. The path returned by pehaps_path <- gama_local_distrib_path() is not the good path for gama_version().