[Buildroot] [PATCH 7/9 v3] support/download: convert scp to use the wrapper

[Thomas De Schampheleire]

On Mon, Jul 21, 2014 at 12:42 AM, Yann E. MORIN <yann.morin.1998 at free.fr> wrote:
> This drastically simplifies the scp helper, as it no longer has to deal
> with atomically saving the downloaded archive.
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> ---
>  package/pkg-download.mk |  5 +++--
>  support/download/scp    | 24 ++++++------------------
>  2 files changed, 9 insertions(+), 20 deletions(-)
>
> diff --git a/package/pkg-download.mk b/package/pkg-download.mk
> index 454179c..434eeaf 100644
> --- a/package/pkg-download.mk
> +++ b/package/pkg-download.mk
> @@ -164,8 +164,9 @@ endef
>  # to prepend the path with a slash: scp://[user@]host:/absolutepath
>  define DOWNLOAD_SCP
>         test -e $(DL_DIR)/$(2) || \
> -       $(EXTRA_ENV) support/download/scp '$(call stripurischeme,$(call qstrip,$(1)))' \
> -                                         $(DL_DIR)/$(2) && \
> +       $(EXTRA_ENV) support/download/wrapper scp \
> +               $(DL_DIR)/$(2) \
> +               '$(call stripurischeme,$(call qstrip,$(1)))' && \
>         $(call VERIFY_HASH,$(PKGDIR)/$($(PKG)_NAME).hash,$(DL_DIR)/$(2))
>  endef
>
> diff --git a/support/download/scp b/support/download/scp
> index d3aad43..6ae545c 100755
> --- a/support/download/scp
> +++ b/support/download/scp
> @@ -1,28 +1,16 @@
>  #!/bin/bash
>
> -# We want to catch any command failure, and exit immediately
> +# We want to catch any unexpected failure, and exit immediately
>  set -e
>
>  # Download helper for scp
>  # Call it with:
> -#   $1: URL
> -#   $2: output file
> +#   $1: output file
> +#   $2: URL
>  # And this environment:
>  #   SCP       : the scp command to call
>
> -url="${1}"
> -output="${2}"
> -tmp_dl="$( mktemp "${BUILD_DIR}/.XXXXXX" )"
> -tmp_output="$( mktemp "${output}.XXXXXX" )"
> +output="${1}"
> +url="${2}"
>
> -ret=1
> -if ${SCP} "${url}" "${tmp_dl}"; then
> -    if mv "${tmp_dl}" "${tmp_output}"; then
> -        mv "${tmp_output}" "${output}"
> -        ret=0
> -    fi
> -fi
> -
> -# Cleanup
> -rm -f "${tmp_dl}" "${tmp_output}"
> -exit ${ret}
> +${SCP} "${url}" "${output}"


Tested-by: Thomas De Schampheleire <thomas.de.schampheleire at gmail.com>
(Tested by setting a primary site to 'scp://localhost:/tmp' and
running 'make vim-source')