+++ /dev/null
-setup <- function() {
- # set up the working directory
- tmp <- tempfile('cran2deb')
- dir.create(tmp)
- return (tmp)
-}
-
-cleanup <- function(dir) {
- # remove the working directory
- unlink(dir,recursive=T)
- invisible()
-}
-
-download_pkg <- function(dir, pkgname) {
- # download pkgname into dir, and construct some metadata
-
- # record some basic information
- pkg <- pairlist()
- pkg$date_stamp = Sys.time()
- pkg$name = pkgname
- pkg$repoURL = available[pkgname,'Repository']
- pkg$repo = repourl_as_debian(pkg$repoURL)
- if (!length(grep('^[A-Za-z0-9][A-Za-z0-9+.-]+$',pkg$name))) {
- fail('Cannot convert package name into a Debian name',pkg$name)
- }
- pkg$srcname = pkgname_as_debian(pkg$name,binary=F)
- pkg$debname = pkgname_as_debian(pkg$name,repo=pkg$repo)
- pkg$version <- available[pkgname,'Version']
-
- # see if we have already built this release and uploaded it.
- debfn <- get_reprepro_orig_tgz(pkg$srcname, pkg$version)
- pkg$need_repack = FALSE
- if (file.exists(debfn)) {
- # if so, use the existing archive. this is good for three reasons:
- # 1. it saves downloading the archive again
- # 2. the repacking performed below changes the MD5 sum of the archive
- # which upsets some Debian archive software.
- # 3. why repack more than once?
- pkg$archive <- file.path(dir, basename(debfn))
- file.copy(debfn,pkg$archive)
- pkg$path = file.path(dir, paste(pkg$srcname ,pkg$version ,sep='-'))
- notice('using an existing debianized source tarball:',debfn)
- } else {
- # see if we have a local mirror in /srv/R
- use_local = FALSE
- if (pkg$repo == 'cran') {
- localfn = file.path('/srv/R/Repositories/CRAN/src/contrib',paste(pkg$name,'_',pkg$version,'.tar.gz',sep=''))
- use_local = file.exists(localfn)
- } else if (pkg$repo == 'bioc') {
- localfn = file.path('/srv/R/Repositories/Bioconductor/release/bioc/src/contrib',paste(pkg$name,'_',pkg$version,'.tar.gz',sep=''))
- use_local = file.exists(localfn)
- }
-
- fn <- paste(pkgname, '_', pkg$version, '.tar.gz', sep='')
- archive <- file.path(dir, fn)
-
- if (use_local) {
- file.copy(localfn, archive)
- } else {
- # use this instead of download.packages as it is more resilient to
- # dodgy network connections (hello BT 'OpenWorld', bad ISP)
- url <- paste(available[pkgname,'Repository'], fn, sep='/')
- # don't log the output -- we don't care!
- ret <- system(paste('curl','-o',shQuote(archive),'-m 720 --retry 5',shQuote(url)))
- if (ret != 0) {
- fail('failed to download',url)
- }
- # end of download.packages replacement
- }
-
- if (length(grep('\\.\\.',archive)) || normalizePath(archive) != archive) {
- fail('funny looking path',archive)
- }
- pkg$path = sub("_\\.(zip|tar\\.gz)", ""
- ,gsub(.standard_regexps()$valid_package_version, ""
- ,archive))
- pkg$archive = archive
- # this is not a Debian conformant archive
- pkg$need_repack = TRUE
- }
- return(pkg)
-}
-
-repack_pkg <- function(pkg) {
- # re-pack into a Debian-named archive with a Debian-named directory.
- notice('repacking into debian source archive.')
- debpath = file.path(dirname(pkg$archive)
- ,paste(pkg$srcname
- ,pkg$version
- ,sep='-'))
- file.rename(pkg$path, debpath)
- pkg$path = debpath
- debarchive = file.path(dirname(pkg$archive)
- ,paste(pkg$srcname,'_'
- ,pkg$version,'.orig.tar.gz'
- ,sep=''))
- wd <- getwd()
- setwd(dirname(pkg$path))
- # remove them pesky +x files
- # BUT EXCLUDE configure and cleanup
- log_system('find',shQuote(basename(pkg$path))
- ,'-type f -a '
- , '! \\( -name configure -o -name cleanup \\)'
- ,'-exec chmod -x {} \\;')
- if (file.exists(file.path(basename(pkg$path),'debian'))) {
- warn('debian/ directory found in tarball! removing...')
- unlink(file.path(basename(pkg$path),'debian'),recursive=TRUE)
- }
- # tar it all back up
- log_system('tar -czf',shQuote(debarchive),shQuote(basename(pkg$path)))
- setwd(wd)
- file.remove(pkg$archive)
- pkg$archive = debarchive
- pkg$need_repack = FALSE
- return(pkg)
-}
-
-prepare_pkg <- function(dir, pkgname) {
- # download and extract an R package named pkgname
-
- # based loosely on library/utils/R/packages2.R::install.packages
-
- # grab the archive and some metadata
- pkg <- download_pkg(dir, pkgname)
-
- # now extract the archive
- if (!length(grep('\\.tar\\.gz',pkg$archive))) {
- fail('archive is not tarball')
- }
- wd <- getwd()
- setwd(dir)
- ret = log_system('tar','xzf',shQuote(pkg$archive))
- setwd(wd)
- if (ret != 0) {
- fail('Extraction of archive',pkg$archive,'failed.')
- }
-
- # if necessary, repack the archive into Debian-conformant format
- if (pkg$need_repack) {
- pkg <- repack_pkg(pkg)
- }
- if (!file.info(pkg$path)[,'isdir']) {
- fail(pkg$path,'is not a directory and should be.')
- }
-
- # extract the DESCRIPTION file, which contains much metadata
- pkg$description = read.dcf(file.path(pkg$path,'DESCRIPTION'))
-
- # ensure consistency of version numbers
- if ('Version' %in% names(pkg$description[1,])) {
- if (pkg$description[1,'Version'] != available[pkg$name,'Version']) {
- # should never happen since available is the basis upon which the
- # package is retrieved.
- error('available version:',available[pkg$name,'Version'])
- error('package version:',pkg$description[1,'Version'])
- fail('inconsistency between R package version and cached R version')
- }
- }
-
- # note subtly of short circuit operators (no absorption)
- if (pkg$description[1,'Package'] != pkg$name) {
- fail('package name mismatch')
- }
- return(pkg)
-}
-
projects / cran2deb.git / blobdiff