uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/networking/browsers/firefox-bin/update.nix

@@ -0,0 +1,93 @@
+{ pname
+, channel
+, writeScript
+, xidel
+, coreutils
+, gnused
+, gnugrep
+, curl
+, gnupg
+, runtimeShell
+, baseName ? "firefox"
+, basePath ? "pkgs/applications/networking/browsers/firefox-bin"
+, baseUrl
+}:
+
+let
+  isBeta =
+    channel != "release";
+
+in writeScript "update-${pname}" ''
+  #!${runtimeShell}
+  PATH=${coreutils}/bin:${gnused}/bin:${gnugrep}/bin:${xidel}/bin:${curl}/bin:${gnupg}/bin
+  set -eux
+  pushd ${basePath}
+
+  HOME=`mktemp -d`
+  export GNUPGHOME=`mktemp -d`
+
+  gpg --receive-keys 14F26682D0916CDD81E37B6D61B7B526D98F0353
+
+  tmpfile=`mktemp`
+  url=${baseUrl}
+
+  # retriving latest released version
+  #  - extracts all links from the $url
+  #  - removes . and ..
+  #  - this line remove everything not starting with a number
+  #  - this line sorts everything with semver in mind
+  #  - we remove lines that are mentioning funnelcake
+  #  - this line removes beta version if we are looking for final release
+  #    versions or removes release versions if we are looking for beta
+  #    versions
+  # - this line pick up latest release
+  version=`xidel -s $url --extract "//a" | \
+           sed s"/.$//" | \
+           grep "^[0-9]" | \
+           sort --version-sort | \
+           grep -v "funnelcake" | \
+           grep -e "${if isBeta then "b" else ""}\([[:digit:]]\|[[:digit:]][[:digit:]]\)$" | ${if isBeta then "" else "grep -v \"b\" |"} \
+           tail -1`
+
+  curl --silent -o $HOME/shasums "$url$version/SHA256SUMS"
+  curl --silent -o $HOME/shasums.asc "$url$version/SHA256SUMS.asc"
+  gpgv --keyring=$GNUPGHOME/pubring.kbx $HOME/shasums.asc $HOME/shasums
+
+  # this is a list of sha256 and tarballs for both arches
+  # Upstream files contains python repr strings like b'somehash', hence the sed dance
+  shasums=`cat $HOME/shasums | sed -E s/"b'([a-f0-9]{64})'?(.*)"/'\1\2'/ | grep tar.bz2`
+
+  cat > $tmpfile <<EOF
+  {
+    version = "$version";
+    sources = [
+  EOF
+  for arch in linux-x86_64 linux-i686; do
+    # retriving a list of all tarballs for each arch
+    #  - only select tarballs for current arch
+    #  - only select tarballs for current version
+    #  - rename space with colon so that for loop doesnt
+    #  - inteprets sha and path as 2 lines
+    for line in `echo "$shasums" | \
+                 grep $arch | \
+                 grep "${baseName}-$version.tar.bz2$" | \
+                 tr " " ":"`; do
+      # create an entry for every locale
+      cat >> $tmpfile <<EOF
+      { url = "$url$version/`echo $line | cut -d":" -f3`";
+        locale = "`echo $line | cut -d":" -f3 | sed "s/$arch\///" | sed "s/\/.*//"`";
+        arch = "$arch";
+        sha256 = "`echo $line | cut -d":" -f1`";
+      }
+  EOF
+    done
+  done
+  cat >> $tmpfile <<EOF
+      ];
+  }
+  EOF
+
+  mv $tmpfile ${channel}_sources.nix
+
+  popd
+''