Add support for virtual packages; drop -x

Signed-off-by: Loïc Minier <[email protected]>

Author: lool

scripts/build-u-boot-rb1.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -eux
+set -eu
 
 GIT_REPO="https:////github.com/b49020/u-boot"
 GIT_BRANCH="qcom-mainline"
@@ -23,18 +23,35 @@ fatal() {
 packages="git"
 # will pull gcc-aarch64-linux-gnu; should pull a native compiler on arm64 and
 # a cross-compiler on other architectures
-packages="$packages crossbuild-essential-arm64"
+packages="${packages} crossbuild-essential-arm64"
 # u-boot build-dependencies
-packages="$packages make bison flex bc libssl-dev gnutls-dev"
+packages="${packages} make bison flex bc libssl-dev gnutls-dev"
 # needed to pack resulting u-boot binary into an Android boot image
-packages="$packages gzip mkbootimg"
+packages="${packages} gzip mkbootimg"
 
 log_i "Checking build-dependencies ($packages)"
 missing=""
-for pkg in $packages; do
-    if ! dpkg -l "${pkg}" 2>&1 | grep -q "^ii  ${pkg}"; then
-        missing="${missing} ${pkg}"
+for pkg in ${packages}; do
+    # check if package with this name is installed
+    if dpkg -l "${pkg}" 2>&1 | grep -q "^ii  ${pkg}"; then
+        continue
     fi
+    # otherwise, check if it's a virtual package and if some package providing
+    # it is installed
+    providers="$(apt-cache showpkg "${pkg}" |
+                     sed -e '1,/^Reverse Provides: *$/ d' -e 's/ .*$//' |
+                     sort -u)"
+    provider_found="no"
+    for provider in ${providers}; do
+        if dpkg -l "${provider}" 2>&1 | grep -q "^ii  ${provider}"; then
+            provider_found="yes"
+            break
+        fi
+    done
+    if [ "${provider_found}" = yes ]; then
+        continue
+    fi
+    missing="${missing} ${pkg}"
 done
 if [ -n "${missing}" ]; then
     fatal "Missing build-dependencies: ${missing}"