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pkg-download: check for already downloaded file in the download wrapper

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Instead of repeating the same test again and again in all our download
rules, just delegate the check for an already downloaded file to the
download wrapper.

This clears up the path for doing the hash checks on a cached file
before the download.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Peter Korsgaard <jacmet@uclibc.org>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2014-12-11 23:52:06 +01:00 committed by Thomas Petazzoni
parent 78b92e5055
commit 2685937e06
2 changed files with 5 additions and 8 deletions
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8
package/pkg-download.mk
View File

@ -96,7 +96,6 @@ endef
# 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) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b git \
-o $(DL_DIR)/$($(PKG)_SOURCE) \
-- \
@ -117,7 +116,6 @@ endef
define DOWNLOAD_BZR
test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b bzr \
-o $(DL_DIR)/$($(PKG)_SOURCE) \
-- \
@ -135,7 +133,6 @@ define SHOW_EXTERNAL_DEPS_BZR
endef
define DOWNLOAD_CVS
test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b cvs \
-o $(DL_DIR)/$($(PKG)_SOURCE) \
-- \
@ -155,7 +152,6 @@ define SHOW_EXTERNAL_DEPS_CVS
endef
define DOWNLOAD_SVN
test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b svn \
-o $(DL_DIR)/$($(PKG)_SOURCE) \
-- \
@ -176,7 +172,6 @@ endef
# Note that filepath is relative to the user's home directory, so you may want
# to prepend the path with a slash: scp://[user@]host:/absolutepath
define DOWNLOAD_SCP
test -e $(DL_DIR)/$(2) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b scp \
-o $(DL_DIR)/$(2) \
-- \
@ -194,7 +189,6 @@ endef
define DOWNLOAD_HG
test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b hg \
-o $(DL_DIR)/$($(PKG)_SOURCE) \
-- \
@ -215,7 +209,6 @@ endef
define DOWNLOAD_WGET
test -e $(DL_DIR)/$(2) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b wget \
-o $(DL_DIR)/$(2) \
-- \
@ -232,7 +225,6 @@ define SHOW_EXTERNAL_DEPS_WGET
endef
define DOWNLOAD_LOCALFILES
test -e $(DL_DIR)/$(2) || \
$(EXTRA_ENV) $(DL_WRAPPER) -b cp \
-o $(DL_DIR)/$(2) \
-- \

5
support/download/dl-wrapper
View File

@ -43,6 +43,11 @@ main() {
error "no output specified, use -o\n"
fi
# If the output file already exists, do not download it again
if [ -e "${output}" ]; then
exit 0
fi
# tmpd is a temporary directory in which backends may store intermediate
# by-products of the download.
# tmpf is the file in which the backends should put the downloaded content.