pyrox.dev
1# The actual Plex package that we run is a FHS userenv of the "raw" package.
2{
3 stdenv,
4 buildFHSEnv,
5 writeScript,
6 plexRaw,
7
8 # Old argument for overriding the Plex data directory; not used for this
9 # version of Plex, but still around for backwards-compatibility.
10 dataDir ? "/var/lib/plex",
11}:
12
13buildFHSEnv {
14 pname = "plexmediaserver";
15
16 inherit (plexRaw) version meta;
17
18 # Plex does some magic to detect if it is already running.
19 # The separate PID namespace somehow breaks this and Plex is thinking it's already
20 # running and refuses to start.
21 unsharePid = false;
22
23 # This script is run when we start our Plex binary
24 runScript = writeScript "plex-run-script" ''
25 #!${stdenv.shell}
26
27 set -eu
28
29 # The root path to our Plex installation
30 root=${plexRaw}/lib/plexmediaserver
31
32 # Path to where we're storing our Plex data files. We default to storing
33 # them in the user's home directory under the XDG-compatible location, but
34 # allow overriding with an environment variable so the location can be
35 # configured in our NixOS module.
36 #
37 # NOTE: the old version of Plex used /var/lib/plex as the default location,
38 # but this package shouldn't assume that we're going to run Plex with the
39 # ability to write to /var/lib, so using a subdirectory of $HOME when none
40 # is specified feels less likely to have permission errors.
41 if [[ -z "''${PLEX_DATADIR:-}" ]]; then
42 PLEX_DATADIR="$HOME/.local/share/plex"
43 fi
44 if [[ ! -d "$PLEX_DATADIR" ]]; then
45 echo "Creating Plex data directory: $PLEX_DATADIR"
46 mkdir -p "$PLEX_DATADIR"
47 fi
48
49 # The database is stored under the given directory
50 db="$PLEX_DATADIR/.skeleton/com.plexapp.plugins.library.db"
51
52 # If we don't have a database in the expected path, then create one by
53 # copying our base database to that location.
54 if ! test -f "$db"; then
55 echo "Copying base database file to: $db"
56 mkdir -p "$(dirname "$db")"
57 cat "${plexRaw.basedb}" > "$db"
58 fi
59
60 # Set up symbolic link at '/db', which is linked to by our Plex package
61 # (see the 'plexRaw' package).
62 ln -s "$db" /db
63
64 # If we have a plugin list (set by our NixOS module), we create plugins in
65 # the data directory as expected. This is a colon-separated list of paths.
66 if [[ -n "''${PLEX_PLUGINS:-}" ]]; then
67 echo "Preparing plugin directory"
68
69 pluginDir="$PLEX_DATADIR/Plex Media Server/Plug-ins"
70 test -d "$pluginDir" || mkdir -p "$pluginDir"
71
72 # First, remove all of the symlinks in the plugins directory.
73 while IFS= read -r -d $'\0' f; do
74 echo "Removing plugin symlink: $f"
75 rm "$f"
76 done < <(find "$pluginDir" -type l -print0)
77
78 echo "Symlinking plugins"
79 IFS=':' read -ra pluginsArray <<< "$PLEX_PLUGINS"
80 for path in "''${pluginsArray[@]}"; do
81 dest="$pluginDir/$(basename "$path")"
82
83 if [[ ! -d "$path" ]]; then
84 echo "Error symlinking plugin from $path: no such directory"
85 elif [[ -d "$dest" || -L "$dest" ]]; then
86 echo "Error symlinking plugin from $path to $dest: file or directory already exists"
87 else
88 echo "Symlinking plugin at: $path"
89 ln -s "$path" "$dest"
90 fi
91 done
92 fi
93
94 if [[ -n "''${PLEX_SCANNERS:-}" ]]; then
95 for scannerType in Common Movies Music Series; do
96 echo "Preparing $scannerType scanners directory"
97
98 scannerDir="$PLEX_DATADIR/Plex Media Server/Scanners/$scannerType"
99 test -d "$scannerDir" || mkdir -p "$scannerDir"
100
101 # First, remove all of the symlinks in the scanners directory.
102 echo "Removing old symlinks"
103 while IFS= read -r -d $'\0' f; do
104 echo "Removing scanner symlink: $f"
105 rm "$f"
106 done < <(find "$scannerDir" -type l -print0)
107
108 echo "Symlinking scanners"
109 IFS=':' read -ra scannersArray <<< "$PLEX_SCANNERS"
110 for path in "''${scannersArray[@]}"; do
111 # The provided source should contain a 'Scanners' directory; symlink
112 # from inside that.
113 subpath="$path/Scanners/$scannerType"
114 while IFS= read -r -d $'\0' file; do
115 dest="$scannerDir/$(basename "$file")"
116
117 if [[ -f "$dest" || -L "$dest" ]]; then
118 echo "Error symlinking scanner from $file to $dest: file or directory already exists"
119 else
120 echo "Symlinking scanner at: $file"
121 ln -s "$file" "$dest"
122 fi
123 done < <(find "$subpath" -type f -print0)
124 done
125 done
126 fi
127
128 # Tell Plex to use the data directory as the "Application Support"
129 # directory, otherwise it tries to write things into the user's home
130 # directory.
131 export PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="$PLEX_DATADIR"
132
133 # Tell Plex where the 'home' directory for itself is.
134 export PLEX_MEDIA_SERVER_HOME="${plexRaw}/lib/plexmediaserver"
135
136 # Actually run Plex, prepending LD_LIBRARY_PATH with the libraries from
137 # the Plex package.
138 LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$root exec "$root/Plex Media Server"
139 '';
140}