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support/download: convert Hg to use the wrapper

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This drastically simplifies the hg helper, as it no longer has to deal
with atomically saving the downloaded archive.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
(Tested by running 'make vim-source')
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2014-08-03 19:53:39 +02:00 committed by Thomas Petazzoni
parent 7e40a1103a
commit 93e678b767
2 changed files with 20 additions and 39 deletions
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7
package/pkg-download.mk
View File

@ -184,8 +184,11 @@ endef
define DOWNLOAD_HG define DOWNLOAD_HG
test -e $(DL_DIR)/$($(PKG)_SOURCE) || \ test -e $(DL_DIR)/$($(PKG)_SOURCE) || \
$(EXTRA_ENV) support/download/hg $($(PKG)_SITE) $($(PKG)_DL_VERSION) \ $(EXTRA_ENV) support/download/wrapper hg \
$($(PKG)_BASE_NAME) $(DL_DIR)/$($(PKG)_SOURCE) $(DL_DIR)/$($(PKG)_SOURCE) \
$($(PKG)_SITE) \
$($(PKG)_DL_VERSION) \
$($(PKG)_BASE_NAME)
endef endef
# TODO: improve to check that the given PKG_DL_VERSION exists on the remote # TODO: improve to check that the given PKG_DL_VERSION exists on the remote

52
support/download/hg
View File

@ -1,46 +1,24 @@
#!/bin/bash #!/bin/bash
# We want to catch any command failure, and exit immediately # We want to catch any unexpected failure, and exit immediately
set -e set -e
# Download helper for hg # Download helper for hg, to be called from the download wrapper script
# Call it with: # Expected arguments:
# $1: hg repo # $1: output file
# $2: hg cset # $2: hg repo
# $3: package's basename (eg. foobar-1.2.3) # $3: hg cset
# $4: output file # $4: package's basename (eg. foobar-1.2.3)
# And this environment: # And this environment:
# HG : the hg command to call # HG : the hg command to call
# BUILD_DIR: path to Buildroot's build dir
repo="${1}" output="${1}"
cset="${2}" repo="${2}"
basename="${3}" cset="${3}"
output="${4}" basename="${4}"
repodir="${basename}.tmp-hg-checkout" ${HG} clone --noupdate --rev "${cset}" "${repo}" "${basename}"
tmp_output="$( mktemp "${output}.XXXXXX" )"
cd "${BUILD_DIR}" ${HG} archive --repository "${basename}" --type tgz \
# Remove leftovers from a previous failed run --prefix "${basename}" --rev "${cset}" \
rm -rf "${repodir}" "${output}"
# Play tic-tac-toe with temp files
# - first, we download to a trashable location (the build-dir)
# - then we create a temporary tarball in the final location, so it is
# on the same filesystem as the final file
# - finally, we atomically rename to the final file
ret=1
if ${HG} clone --noupdate --rev "${cset}" "${repo}" "${repodir}"; then
if ${HG} archive --repository "${repodir}" --type tgz \
--prefix "${basename}" --rev "${cset}" \
"${tmp_output}"; then
mv "${tmp_output}" "${output}"
ret=0
fi
fi
# Cleanup
rm -rf "${repodir}" "${tmp_output}"
exit ${ret}