scripts/download.pl: fix support for aria2c download tool on macos

Currently we use /dev/shm to place aria2c tmp file. This is not present
on macos. Use the openwrt tmp directory instead of the linux-only
/dev/shm to save compatibility with more os.

Fixes: d39123626931 ("download.pl: add aria2c support")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

diff --git a/scripts/download.pl b/scripts/download.pl
index 51a816cff440cf9369de34539dba1072f0111cb1..ad4fde7333ac1161adf85e2b1642aa004e7068ce 100755 (executable)
--- a/scripts/download.pl
+++ b/scripts/download.pl
@@ -78,7 +78,7 @@ sub download_cmd {
        my $additional_mirrors = join(" ", map "$_/$filename", @_);
 
        my @chArray = ('a'..'z', 'A'..'Z', 0..9);
-       my $rfn = join '', map{ $chArray[int rand @chArray] } 0..9;
+       my $rfn = join '', "${filename}_", map{ $chArray[int rand @chArray] } 0..9;
        if (open CURL, '-|', 'curl', '--version') {
                if (defined(my $line = readline CURL)) {
                        $have_curl = 1 if $line =~ /^curl /;
@@ -94,13 +94,15 @@ sub download_cmd {
 
        if ($have_aria2c) {
                @mirrors=();
-               return join(" ", "touch /dev/shm/${rfn}_spp;",
+               return join(" ", "[ -d $ENV{'TMPDIR'}/aria2c ] || mkdir $ENV{'TMPDIR'}/aria2c;",
+                       "touch $ENV{'TMPDIR'}/aria2c/${rfn}_spp;",
                        qw(aria2c --stderr -c -x2 -s10 -j10 -k1M), $url, $additional_mirrors,
                        $check_certificate ? () : '--check-certificate=false',
-                       "--server-stat-of=/dev/shm/${rfn}_spp",
-                       "--server-stat-if=/dev/shm/${rfn}_spp",
-                       "-d /dev/shm -o $rfn;",
-                       "cat /dev/shm/$rfn;", "rm /dev/shm/$rfn /dev/shm/${rfn}_spp");
+                       "--server-stat-of=$ENV{'TMPDIR'}/aria2c/${rfn}_spp",
+                       "--server-stat-if=$ENV{'TMPDIR'}/aria2c/${rfn}_spp",
+                       "-d $ENV{'TMPDIR'}/aria2c -o $rfn;",
+                       "cat $ENV{'TMPDIR'}/aria2c/$rfn;",
+                       "rm $ENV{'TMPDIR'}/aria2c/$rfn $ENV{'TMPDIR'}/aria2c/${rfn}_spp");
        } elsif ($have_curl) {
                return (qw(curl -f --connect-timeout 20 --retry 5 --location),
                        $check_certificate ? () : '--insecure',