download: put most of the infra in dl-wrapper

The goal here is to simplify the infrastructure by putting most of the
code in the dl-wrapper as it is easier to implement and to read.

Most of the functions were common already, this patch finalizes it by
making the pkg-download.mk pass all the parameters needed to the
dl-wrapper which in turn will pass everything to every backend.

The backend will then cherry-pick what it needs from these arguments
and act accordingly.

It eases the transition to the addition of a sub directory per package
in the DL_DIR, and later on, a git cache.

[Peter: drop ';' in BR_NO_CHECK_HASH_FOR in DOWNLOAD macro and swap cd/rm
	-rf as mentioned by Yann, fix typos]
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Tested-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/support/download/wget b/support/download/wget
index fece6663ca..c69e6071aa 100755
--- a/support/download/wget
+++ b/support/download/wget
@@ -8,7 +8,9 @@ set -e
 # Options:
 #   -q          Be quiet.
 #   -o FILE     Save into file FILE.
+#   -f FILENAME The filename of the tarball to get at URL
 #   -u URL      Download file at URL.
+#   -e ENCODE   Tell wget to urlencode the filename passed to it
 #
 # Environment:
 #   WGET     : the wget command to call
@@ -18,7 +20,9 @@ while getopts "${BR_BACKEND_DL_GETOPTS}" OPT; do
     case "${OPT}" in
     q)  verbose=-q;;
     o)  output="${OPTARG}";;
+    f)  filename="${OPTARG}";;
     u)  url="${OPTARG}";;
+    e)  encode="-e";;
     :)  printf "option '%s' expects a mandatory argument\n" "${OPTARG}"; exit 1;;
     \?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;;
     esac
@@ -32,4 +36,8 @@ _wget() {
     eval ${WGET} "${@}"
 }
 
-_wget ${verbose} "${@}" -O "'${output}'" "'${url}'"
+# Replace every '?' with '%3F' in the filename; only for the PRIMARY and BACKUP
+# mirror
+[ -n "${encode}" ] && filename=${filename//\?/%3F}
+
+_wget ${verbose} "${@}" -O "'${output}'" "'${url}/${filename}'"