blob: 19d837d305a6145f3003dddeb0f6d32b2eed4c58 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#!/bin/bash
# We want to catch any command failure, and exit immediately
set -e
# Download helper for bzr
# Call it with:
# $1: bzr repo
# $2: bzr revision
# $3: output file
# And this environment:
# BZR : the bzr command to call
# BUILD_DIR: path to Buildroot's build dir
repo="${1}"
rev="${2}"
output="${3}"
tmp_dl="$( mktemp "${BUILD_DIR}/.XXXXXX" )"
tmp_output="$( mktemp "${output}.XXXXXX" )"
# Play tic-tac-toe with temp files
# - first, we download to a trashable location (the build-dir)
# - the we move to a temp file 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 ${BZR} export --format=tgz "${tmp_dl}" "${repo}" -r "${rev}"; 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}
|
