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pkg-download.mk: Fix shallow clone

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Some git versions (e.g. 1.7.0) do not treat trying to shallow clone
a non existing branch or tag as a fatal error but report a warning
and clone HEAD instead. Thus the fallback mechanism does not work
in this case.

This patch introduces a check for the presence of the requested
version as a branch or tag before trying the shallow clone. It
also removes the need to do two clones when a sha1 is given as
a packege version.

[Peter: use cut -f2-]
Signed-off-by: Stephan Hoffmann <sho@relinux.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Stephan Hoffmann 2012-12-02 00:56:07 +00:00 committed by Peter Korsgaard
parent 4a4b0bdd07
commit d1f5fc29ef
1 changed files with 10 additions and 3 deletions
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13
package/pkg-download.mk
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@ -74,12 +74,19 @@ domainseparator=$(if $(1),$(1),/)
################################################################################
# Try a shallow clone - but that only works if the version is a ref (tag or
# branch). Fall back on a full clone if it's a generic sha1.
# branch). Before trying to do a shallow clone we check if $($(PKG)_DL_VERSION)
# is in the list provided by git ls-remote. If not we fall back on a full clone.
#
# Messages for the type of clone used are provided to ease debugging in case of
# problems
define DOWNLOAD_GIT
test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
(pushd $(DL_DIR) > /dev/null && \
($(GIT) clone --depth 1 -b $($(PKG)_DL_VERSION) --bare $($(PKG)_SITE) $($(PKG)_BASE_NAME) || \
$(GIT) clone --bare $($(PKG)_SITE) $($(PKG)_BASE_NAME)) && \
((test `git ls-remote $($(PKG)_SITE) | cut -f 2- | grep $($(PKG)_DL_VERSION)` && \
echo "Doing shallow clone" && \
$(GIT) clone --depth 1 -b $($(PKG)_DL_VERSION) --bare $($(PKG)_SITE) $($(PKG)_BASE_NAME)) || \
(echo "Doing full clone" && \
$(GIT) clone --bare $($(PKG)_SITE) $($(PKG)_BASE_NAME))) && \
pushd $($(PKG)_BASE_NAME) > /dev/null && \
$(GIT) archive --format=tar --prefix=$($(PKG)_BASE_NAME)/ $($(PKG)_DL_VERSION) | \
gzip -c > $(DL_DIR)/$($(PKG)_SOURCE) && \