Merge pull request #84 from matthiasbeyer/download-sources

Add command to download sources of a package and its deps

1 files changed, 52 insertions, 0 deletions

diff --git a/nix-script-download-sources.sh b/nix-script-download-sources.sh
new file mode 100755
index 0000000..061f312
--- /dev/null
+++ b/nix-script-download-sources.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+source $(dirname ${BASH_SOURCE[0]})/nix-utils.sh
+
+usage() {
+    cat <<EOS
+    $(help_synopsis "${BASH_SOURCE[0]}" "[-h] -p <pkg>")
+
+        -p <pkg> | Package to download source and deps for
+        -Q       | No build output
+        -h       | Show this help and exit
+
+    Download sources for the package <pkg>, so we can disconnect
+    from the internet before building it.
+
+$(help_end)
+EOS
+}
+
+PACKAGE=""
+
+while getopts "p:Qh" OPTION
+do
+    case $OPTION in
+        p)
+            PACKAGE=$OPTARG
+            dbg "PACKAGE = $PACKAGE"
+            ;;
+
+        Q)
+            NO_BUILD_OUTPUT=1
+            dbg "NO_BUILD_OUTPUT = $NO_BUILD_OUTPUT"
+            ;;
+
+        h)
+            usage
+            exit 1
+            ;;
+    esac
+done
+
+[[ -z "$PACKAGE" ]] && stderr "No package passed" && usage && exit 1
+
+continue_question "Install sources for package '$PACKAGE'"
+
+drvs=$(nix-store -qR $(nix-instantiate '<nixpkgs>' -A $PACKAGE) | grep '.drv$')
+
+ARGS=""
+[[ $NO_BUILD_OUTPUT -eq 1 ]] && ARGS="-Q"
+
+nix-store $ARGS -r $(grep -l outputHash $drv)
+