[PATCH] deb-dl-dir: Avoid redownload src packages with epoch in version

[Uladzimir Bely <ubely@ilbers.de>]

Some source packages include epoch number in their version string.
This makes check for already downloaded .dsc file wrong.

Example: `libxcrypt_4.4.18-4.dsc` package has version `1:4.4.18-4`.

The patch fixes check for existing .dsc file and reduces a bit build
time and network usage.

Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
---
 meta/classes/deb-dl-dir.bbclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes/deb-dl-dir.bbclass b/meta/classes/deb-dl-dir.bbclass
index 188cb832..3b1517dc 100644
--- a/meta/classes/deb-dl-dir.bbclass
+++ b/meta/classes/deb-dl-dir.bbclass
@@ -64,7 +64,8 @@ debsrc_download() {
         # TODO: get back to the code below when debian bug #1004372 is fixed
         # local src="$( dpkg-deb --show --showformat '${source:Package}' "${package}" )"
         # local version="$( dpkg-deb --show --showformat '${source:Version}' "${package}" )"
-        local dscfile=$(find "${DEBSRCDIR}"/"${rootfs_distro}" -name "${src}_${version}.dsc")
+        local dscname="$(echo ${src}_${version} | sed -e 's/_[0-9]\+:/_/')"
+        local dscfile=$(find "${DEBSRCDIR}"/"${rootfs_distro}" -name "${dscname}.dsc")
         [ -n "$dscfile" ] && continue
 
         sudo -E chroot --userspec=$( id -u ):$( id -g ) ${rootfs} \
-- 
2.20.1