pkg-infra: move the hg download helper to a script

Maintaining the download helpers in the Makefile has proved to be a bit
complex, so move it to a shell script.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Samuel Martin <s.martin49@gmail.com>
Tested-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
[tested a particular scenario that used to fail, when the 'hg archive'
step is interrupted, now working fine]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/support/download/hg b/support/download/hg
new file mode 100755
index 0000000000..d2e69c35ff
--- /dev/null
+++ b/support/download/hg
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# We want to catch any command failure, and exit immediately
+set -e
+
+# Download helper for hg
+# Call it with:
+#   $1: hg repo
+#   $2: hg cset
+#   $3: package's basename (eg. foobar-1.2.3)
+#   $4: output file
+# And this environment:
+#   HG        : the hg command to call
+#   BR2_DL_DIR: path to Buildroot's download dir
+
+repo="${1}"
+cset="${2}"
+basename="${3}"
+output="${4}"
+
+cd "${BR2_DL_DIR}"
+${HG} clone --noupdate --rev "${cset}" "${repo}" "${basename}"
+${HG} archive --repository "${basename}" --type tgz --prefix "${basename}" \
+              --rev "${cset}" "${output}"
+rm -rf "${basename}"