initial commit of build all-at-once code.

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

diff --git a/branch/double_build/R/build.R b/branch/double_build/R/build.R
new file mode 100644 (file)
index 0000000..60a3aac
--- /dev/null
+++ b/branch/double_build/R/build.R
@@ -0,0 +1,133 @@
+
+build <- function(name,extra_deps,force=F,do_cleanup=T) {
+    # 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)
+        }
+
+        if (name %in% db_blacklist_packages()) {
+            #fail('package',name,'is blacklisted. consult database for reason.')
+            notice('package',name,'is blacklisted. consult database for reason.')
+            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)
+        }
+
+        notice('R dependencies:',paste(pkg$depends$r,collapse=', '))
+        try_upload <- function(pkg, arch) {
+            ret = log_system('umask 002; reprepro -b ',reprepro_dir,' include testing', changesfile(pkg$srcname,pkg$debversion, arch))
+            if (ret != 0) {
+                fail('upload failed!')
+            }
+        }
+        if (pkg$archdep) {
+            build_debian(pkg, indep_arch)
+            try_upload(pkg, indep_arch)
+        } else {
+            for (arch in archs) {
+                build_debian(pkg, arch)
+                try_upload(pkg, arch)
+            }
+        }
+
+        return(pkg$debversion)
+    })())
+    if (do_cleanup) {
+        cleanup(dir)
+    } else {
+        notice('output is in',dir,'. you must clean this up yourself.')
+    }
+    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
+        notice('rebuilding',name,': no build record or previous build failed')
+        return(T)
+    }
+    # see if it has already been built *and* successfully uploaded
+    srcname <- pkgname_as_debian(name,binary=F)
+    debname <- pkgname_as_debian(name,binary=T)
+    all=TRUE
+    for (arch in archs) {
+        all = all && file.exists(changesfile(srcname, version, arch))
+    }
+    if (all || file.exists(changesfile(srcname, version,indep_arch))) {
+        notice('already built',srcname,'version',version)
+        return(F)
+    }
+
+    if (build$r_version != version_upstream(version)) {
+        notice('rebuilding',name,': new upstream version',build$r_version,'(old) vs',version_upstream(version),'(new)')
+    }
+    if (build$deb_epoch != version_epoch(version)) {
+        notice('rebuilding',name,': new cran2deb epoch',build$deb_epoch,'(old) vs',version_epoch(version),'(new)')
+    }
+    if (build$db_version != db_get_version()) {
+        notice('rebuilding',name,': new db version',build$db_version,'(old) vs',db_get_version(),'(new)')
+    }
+    rm(debname,srcname)
+    return(T)
+}
+
+build_debian <- function(pkg,arch) {
+    wd <- getwd()
+    setwd(pkg$path)
+    notice('building Debian package'
+                 ,pkg$debname
+                 ,paste('(',pkg$debversion,')',sep='')
+                 ,'for',arch,'...')
+
+    cmd = paste('pdebuild --configfile',shQuote(get_pbuilder_config(arch)))
+    if (version_revision(pkg$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.')
+    }
+}
+