Some increased verbosity for the update cache routine.

[cran2deb.git] / trunk / exec / update_cache

diff --git a/trunk/exec/update_cache b/trunk/exec/update_cache
index 6f82b49bdd4e8b9d3a01771681745d787132c5a1..3864d1727aeb0c2ad14e2a7c88acf3800f4d22b7 100755 (executable)
--- a/trunk/exec/update_cache
+++ b/trunk/exec/update_cache
@@ -1,4 +1,5 @@
 #!/usr/bin/r -t
+
 # Note: everything in the case needs to be system-independent!
 library(cran2deb)
 library(ctv)
@@ -9,6 +10,8 @@ library(ctv)
 #mirror <- 'http://cran.uk.r-project.org/'
 mirror <- 'http://cran.r-project.org/'
 
+verbose<-FALSE
+
 message('updating list of available R packages...')
 available <- available.packages(contrib.url(mirror))
 
@@ -19,16 +22,40 @@ available <- available.packages(contrib.url(mirror))
 message('updating list of available R task views...')
 ctv.available <- available.views(repo=mirror)
 
-#message('updating list of base R packages...')
-#base_pkgs <- readLines(pipe(paste('sudo pbuilder --execute --override-config --configfile'
-#                                 ,shQuote(pbuilder_config),'-- /usr/bin/R --vanilla 2>&1 >/dev/null <'
-#                                 ,shQuote(file.path(root,'exec/get_base_pkgs'))
-#                                 ,'| grep -v ^W:')))
-base_pkgs <- ''
+message('updating list of base R packages...')
+base_pkgs <- readLines(pipe(paste('sudo pbuilder --execute --override-config --configfile'
+                                 ,shQuote(pbuilder_config),'-- /usr/bin/R --vanilla 2>&1 >/dev/null <'
+                                 ,shQuote(file.path(root,'exec/get_base_pkgs'))
+                                 ,'| grep -v ^W:')))
+
+if (any(grep("^E:",base_pkgs,value=FALSE))) {
+       cat("Cannot continue, the following error occurred:\n")
+       cat(paste(grep("^E:",base_pkgs,value=TRUE),collapse="\n"))
+       cat("\n")
+       q(save="no")
+}
+
+
+if (verbose) {
+       cat("The following base packages were determined:\n")
+       print(base_pkgs)
+}
 
 message('updating list of existing Debian packages...')
 debian_pkgs <- readLines(pipe('apt-cache rdepends r-base-core | sed -e "/^  r-cran/{s/^[[:space:]]*r/r/;p}" -e d | sort -u'))
 
+if (any(grep("^E:",debian_pkgs,value=FALSE))) {
+       cat("Cannot continue, the following error occurred:\n")
+       cat(paste(grep("^E:",debian_pkgs,value=TRUE),collapse="\n"))
+       cat("\n")
+       q(save="no")
+}
+
+if (verbose) {
+       cat("The following packages were found to be available:\n")
+       print(debian_pkgs)
+}
+
 save(debian_pkgs, base_pkgs, available, ctv.available, file=file.path(cache_root,'cache.rda'),eval.promises=T)
 
 message('synchronising database...')