[Buildroot] [PATCH v2-resend2] Package downloads: allow restricting to primary site only

[Buildroot] [PATCH v2-resend2] Package downloads: allow restricting to primary site only

[Thomas De Schampheleire]

This patch adds a new config option BR2_PRIMARY_SITE_ONLY that, when set,
restricts package downloads to the specified BR2_PRIMARY_SITE. If the package
is not present on the primary site, the download fails.

This is useful for project developers who want to ensure that the project can
be built even if the upstream tarball locations disappear.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

---
v2: update after moving of Makefile.package.in

 Config.in               |  12 ++++++++++++
 package/pkg-download.mk |   7 +++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/Config.in b/Config.in
--- a/Config.in
+++ b/Config.in
@@ -119,6 +119,16 @@ config BR2_PRIMARY_SITE
 	  NOTE: This works for all packages using the central package
 	  infrastructure (generic, autotools, cmake, ...)
 
+config BR2_PRIMARY_SITE_ONLY
+	bool "Only allow downloads from primary download site"
+	help
+	  If this option is enabled, downloads will only be attempted from the
+	  primary download site. Other locations, like the package's official
+	  download location or the backup download site, will not be
+	  considered.
+
+if !BR2_PRIMARY_SITE_ONLY
+
 config BR2_BACKUP_SITE
 	string "Backup download site"
 	default "http://sources.buildroot.net/"
@@ -175,6 +185,8 @@ config BR2_DEBIAN_MIRROR
 	  Usually, just add your country code like XX here:
 	  http://ftp.XX.debian.org
 
+endif
+
 endmenu
 
 config BR2_JLEVEL
diff --git a/package/pkg-download.mk b/package/pkg-download.mk
--- a/package/pkg-download.mk
+++ b/package/pkg-download.mk
@@ -189,8 +189,8 @@ endef
 ################################################################################
 # DOWNLOAD -- Download helper. Will try to download source from:
 # 1) BR2_PRIMARY_SITE if enabled
-# 2) Download site
-# 3) BR2_BACKUP_SITE if enabled
+# 2) Download site, unless BR2_PRIMARY_SITE_ONLY is set
+# 3) BR2_BACKUP_SITE if enabled, unless BR2_PRIMARY_SITE_ONLY is set
 #
 # Argument 1 is the source location
 # Argument 2 is the source filename
@@ -210,6 +210,9 @@ define DOWNLOAD_INNER
 			*) $(call $(DL_MODE)_WGET,$(BR2_PRIMARY_SITE)/$(2),$(2)) && exit ;; \
 		esac ; \
 	fi ; \
+	if test "$(BR2_PRIMARY_SITE_ONLY)" = "y" ; then \
+		exit 1 ; \
+	fi ; \
 	if test -n "$(1)" ; then \
 		case "$($(PKG)_SITE_METHOD)" in \
 			git) $($(DL_MODE)_GIT) && exit ;; \

[Buildroot] [PATCH v2-resend2] Package downloads: allow restricting to primary site only

[Thomas Petazzoni]

Le Fri, 22 Jun 2012 07:37:03 +0200,
Thomas De Schampheleire <patrickdepinguin+buildroot@gmail.com> a ?crit :

> This patch adds a new config option BR2_PRIMARY_SITE_ONLY that, when set,
> restricts package downloads to the specified BR2_PRIMARY_SITE. If the package
> is not present on the primary site, the download fails.
> 
> This is useful for project developers who want to ensure that the project can
> be built even if the upstream tarball locations disappear.
> 
> Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
> Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

Thanks, applied with minor changes:

 * Added more details in the configuration option help text, coming
   from your commit log. I thought that mentioning the possible use
   case for the option was useful.

 * Added a dependency on BR2_PRIMARY_SITE != "", which hides this new
   option in the general case of having no primary site at all.

Thanks!

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com