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/servers/plex/default.nix

@@ -0,0 +1,133 @@
+# The actual Plex package that we run is a FHS userenv of the "raw" package.
+{ stdenv
+, buildFHSUserEnv
+, writeScript
+, plexRaw
+
+# Old argument for overriding the Plex data directory; not used for this
+# version of Plex, but still around for backwards-compatibility.
+, dataDir ? "/var/lib/plex"
+}:
+
+buildFHSUserEnv {
+  name = "plexmediaserver";
+  inherit (plexRaw) meta;
+
+  # This script is run when we start our Plex binary
+  runScript = writeScript "plex-run-script" ''
+    #!${stdenv.shell}
+
+    set -eu
+
+    # The root path to our Plex installation
+    root=${plexRaw}/lib/plexmediaserver
+
+    # Path to where we're storing our Plex data files. We default to storing
+    # them in the user's home directory under the XDG-compatible location, but
+    # allow overriding with an environment variable so the location can be
+    # configured in our NixOS module.
+    #
+    # NOTE: the old version of Plex used /var/lib/plex as the default location,
+    # but this package shouldn't assume that we're going to run Plex with the
+    # ability to write to /var/lib, so using a subdirectory of $HOME when none
+    # is specified feels less likely to have permission errors.
+    if [[ -z "''${PLEX_DATADIR:-}" ]]; then
+      PLEX_DATADIR="$HOME/.local/share/plex"
+    fi
+    if [[ ! -d "$PLEX_DATADIR" ]]; then
+      echo "Creating Plex data directory: $PLEX_DATADIR"
+      mkdir -p "$PLEX_DATADIR"
+    fi
+
+    # The database is stored under the given directory
+    db="$PLEX_DATADIR/.skeleton/com.plexapp.plugins.library.db"
+
+    # If we don't have a database in the expected path, then create one by
+    # copying our base database to that location.
+    if ! test -f "$db"; then
+      echo "Copying base database file to: $db"
+      mkdir -p "$(dirname "$db")"
+      cat "${plexRaw.basedb}" > "$db"
+    fi
+
+    # Set up symbolic link at '/db', which is linked to by our Plex package
+    # (see the 'plexRaw' package).
+    ln -s "$db" /db
+
+    # If we have a plugin list (set by our NixOS module), we create plugins in
+    # the data directory as expected. This is a colon-separated list of paths.
+    if [[ -n "''${PLEX_PLUGINS:-}" ]]; then
+      echo "Preparing plugin directory"
+
+      pluginDir="$PLEX_DATADIR/Plex Media Server/Plug-ins"
+      test -d "$pluginDir" || mkdir -p "$pluginDir"
+
+      # First, remove all of the symlinks in the plugins directory.
+      while IFS= read -r -d $'\0' f; do
+        echo "Removing plugin symlink: $f"
+        rm "$f"
+      done < <(find "$pluginDir" -type l -print0)
+
+      echo "Symlinking plugins"
+      IFS=':' read -ra pluginsArray <<< "$PLEX_PLUGINS"
+      for path in "''${pluginsArray[@]}"; do
+        dest="$pluginDir/$(basename "$path")"
+
+        if [[ ! -d "$path" ]]; then
+          echo "Error symlinking plugin from $path: no such directory"
+        elif [[ -d "$dest" || -L "$dest" ]]; then
+          echo "Error symlinking plugin from $path to $dest: file or directory already exists"
+        else
+          echo "Symlinking plugin at: $path"
+          ln -s "$path" "$dest"
+        fi
+      done
+    fi
+
+    if [[ -n "''${PLEX_SCANNERS:-}" ]]; then
+      for scannerType in Common Movies Music Series; do
+        echo "Preparing $scannerType scanners directory"
+
+        scannerDir="$PLEX_DATADIR/Plex Media Server/Scanners/$scannerType"
+        test -d "$scannerDir" || mkdir -p "$scannerDir"
+
+        # First, remove all of the symlinks in the scanners directory.
+        echo "Removing old symlinks"
+        while IFS= read -r -d $'\0' f; do
+          echo "Removing scanner symlink: $f"
+          rm "$f"
+        done < <(find "$scannerDir" -type l -print0)
+
+        echo "Symlinking scanners"
+        IFS=':' read -ra scannersArray <<< "$PLEX_SCANNERS"
+        for path in "''${scannersArray[@]}"; do
+          # The provided source should contain a 'Scanners' directory; symlink
+          # from inside that.
+          subpath="$path/Scanners/$scannerType"
+          while IFS= read -r -d $'\0' file; do
+            dest="$scannerDir/$(basename "$file")"
+
+            if [[ -f "$dest" || -L "$dest" ]]; then
+              echo "Error symlinking scanner from $file to $dest: file or directory already exists"
+            else
+              echo "Symlinking scanner at: $file"
+              ln -s "$file" "$dest"
+            fi
+          done < <(find "$subpath" -type f -print0)
+        done
+      done
+    fi
+
+    # Tell Plex to use the data directory as the "Application Support"
+    # directory, otherwise it tries to write things into the user's home
+    # directory.
+    export PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="$PLEX_DATADIR"
+
+    # Tell Plex where the 'home' directory for itself is.
+    export PLEX_MEDIA_SERVER_HOME="${plexRaw}/lib/plexmediaserver"
+
+    # Actually run Plex, prepending LD_LIBRARY_PATH with the libraries from
+    # the Plex package.
+    LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$root exec "$root/Plex Media Server"
+  '';
+}