multisys: support for multiple os-arch configurations (preliminary)

[cran2deb.git] / branch / multisys / R / zzz.R

diff --git a/branch/multisys/R/zzz.R b/branch/multisys/R/zzz.R
new file mode 100644 (file)
index 0000000..ffb09ad
--- /dev/null
+++ b/branch/multisys/R/zzz.R
@@ -0,0 +1,28 @@
+.First.lib <- function(libname, pkgname) {
+    global <- function(name,value) assign(name,value,envir=.GlobalEnv)
+    which_sys <- Sys.getenv('CRAN2DEB_SYS','debian-amd64')
+    if (!length(grep('^[a-z]+-[a-z0-9]+$',which_sys))) {
+        stop('Invalid system specification: must be of the form name-arch')
+    }
+    global("host_arch", gsub('^[a-z]+-','',which_sys))
+    global("maintainer", 'cran2deb autobuild <cran2deb@example.org>')
+    global("root", system.file(package='cran2deb'))
+    global("cache_root", '/var/cache/cran2deb')
+    global("pbuilder_results",  file.path('/var/cache/cran2deb/results',which_sys))
+    global("pbuilder_config",   file.path('/etc/cran2deb/sys',which_sys,'pbuilderrc'))
+    global("dput_config",       file.path('/etc/cran2deb/sys',which_sys,'dput.cf')
+    global("dinstall_config",   file.path('/etc/cran2deb/sys',which_sys,'mini-dinstall.conf')
+    global("dinstall_archive",  file.path('/etc/cran2deb/archive',which_sys))
+    global("r_depend_fields", c('Depends','Imports')) # Suggests, Enhances
+    global("scm_revision", 'svn:$Id$')
+    global("changesfile", function(srcname,version='*') {
+        return(file.path(pbuilder_results
+                        ,paste(srcname,'_',version,'_'
+                              ,host_arch(),'.changes',sep='')))
+    })
+
+    cache <- file.path(cache_root,'cache.rda')
+    if (file.exists(cache)) {
+        load(cache,envir=.GlobalEnv)
+    }
+}