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

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

diff --git a/branch/multisys/R/build.R b/branch/multisys/R/build.R
new file mode 100644 (file)
index 0000000..4ca1923
--- /dev/null
+++ b/branch/multisys/R/build.R
@@ -0,0 +1,149 @@
+
+build <- function(name,extra_deps,force=F) {
+    # can't, and hence don't need to, build base packages
+    if (name %in% base_pkgs) {
+        return(T)
+    }
+    log_clear()
+    dir <- setup()
+
+    # obtain the Debian version-to-be
+    version <- try(new_build_version(name))
+    if (inherits(version,'try-error')) {
+        error('failed to build',name)
+        return(NULL)
+    }
+
+    result <- try((function() {
+        if (!force && !needs_build(name,version)) {
+            notice('skipping build of',name)
+            return(NULL)
+        }
+
+        pkg <- prepare_new_debian(prepare_pkg(dir,name),extra_deps)
+        if (pkg$debversion != version) {
+            fail('expected Debian version',version,'not equal to actual version',pkg$debversion)
+        }
+        # delete the current archive (XXX: assumes mini-dinstall)
+        for (subdir in c('mini-dinstall','unstable')) {
+            path = file.path(dinstall_archive,subdir)
+            if (file.exists(path)) {
+                unlink(path,recursive=T)
+            }
+        }
+
+        # delete notes of upload
+        file.remove(Sys.glob(file.path(pbuilder_results,'*.upload')))
+
+        # make mini-dinstall generate the skeleton of the archive
+        ret = log_system('umask 002;mini-dinstall --batch -c',dinstall_config)
+        if (ret != 0) {
+            fail('failed to create archive')
+        }
+
+        # pull in all the R dependencies
+        notice('R dependencies:',paste(pkg$depends$r,collapse=', '))
+        for (dep in pkg$depends$r) {
+            if (pkgname_as_debian(dep) %in% debian_pkgs) {
+                notice('using Debian package of',dep)
+                next
+            }
+            # otherwise, convert to source package name
+            srcdep = pkgname_as_debian(dep,binary=F)
+
+            notice('uploading',srcdep)
+            ret = log_system('umask 002;dput','-c',shQuote(dput_config),'local'
+                        ,changesfile(srcdep))
+            if (ret != 0) {
+                fail('upload of dependency failed! maybe you did not build it first?')
+            }
+        }
+        build_debian(pkg)
+
+        # upload the package
+        ret = log_system('umask 002;dput','-c',shQuote(dput_config),'local'
+                    ,changesfile(pkg$srcname,pkg$debversion))
+        if (ret != 0) {
+            fail('upload failed!')
+        }
+
+        # delete the current archive (XXX: assumes mini-dinstall)
+        # this is handy for group operation
+        for (subdir in c('mini-dinstall','unstable')) {
+            path = file.path(dinstall_archive,subdir)
+            if (file.exists(path)) {
+                unlink(path,recursive=T)
+            }
+        }
+
+        return(pkg$debversion)
+    })())
+    cleanup(dir)
+    if (is.null(result)) {
+        # nothing was done so escape asap.
+        return(result)
+    }
+
+    # otherwise record progress
+    failed = inherits(result,'try-error')
+    if (failed) {
+        error('failure of',name,'means these packages will fail:'
+                     ,paste(r_dependency_closure(name,forward_arcs=F),collapse=', '))
+    }
+    db_record_build(name, version, log_retrieve(), !failed)
+    return(!failed)
+}
+
+needs_build <- function(name,version) {
+    # see if the last build was successful
+    build <- db_latest_build(name)
+    if (!is.null(build) && build$success) {
+        # then something must have changed for us to attempt this
+        # build
+        if (build$r_version == version_upstream(version) &&
+            build$deb_epoch == version_epoch(version) &&
+            build$db_version == db_get_version()) {
+            return(F)
+        }
+    } else {
+        # always rebuild on failure or no record
+        return(T)
+    }
+    # see if it has already been built
+    srcname <- pkgname_as_debian(name,binary=F)
+    debname <- pkgname_as_debian(name,binary=T)
+    if (file.exists(changesfile(srcname, version))) {
+        notice('already built',srcname,'version',version)
+        return(F)
+    }
+
+    # XXX: what about building newer versions of Debian packages?
+    if (debname %in% debian_pkgs) {
+        notice(srcname,' exists in Debian (perhaps a different version)')
+        return(F)
+    }
+
+    rm(debname,srcname)
+    return(T)
+}
+
+build_debian <- function(pkg) {
+    wd <- getwd()
+    setwd(pkg$path)
+    notice('building Debian package'
+                 ,pkg$debname
+                 ,paste('(',pkg$debversion,')',sep='')
+                 ,'...')
+
+    cmd = paste('pdebuild --configfile',shQuote(pbuilder_config))
+    if (version_revision(pkg$debversion) > 2) {
+        cmd = paste(cmd,'--debbuildopts','-sd')
+        notice('build should exclude original source')
+    }
+    ret = log_system(cmd)
+    setwd(wd)
+    if (ret != 0) {
+        fail('Failed to build package.')
+    }
+}
+