NCI: trybot test for sqlite 3.17 import.

third_party/sqlite/split.pl

+#!/usr/bin/perl -w
+
+# The sqlite3.c file is too large for the trybot system to handle.  Given a
+# branch name, pull over the file in chunks that are included into an uber-file
+# to make things work.
+
+use strict;
+
+my $branch = shift || "zzzzzzsql_update";
+
+sub patch {
+    my $file = shift;
+    my $basename = pop @{[split('/', $file)]};
+    system("git checkout -- $file") == 0 || die("Reverting $basename: $?");
+    system("git diff origin/master..$branch -- $file | patch -p1") == 0 || die("Patching $basename: $?");
+    system("git add $file") == 0 || die("Adding $basename: $?");
+}
+
+patch("third_party/sqlite/BUILD.gn");
+patch("third_party/sqlite/amalgamation/sqlite3.h");
+
+print "Deleting old split files\n";
+foreach my $o (glob "third_party/sqlite/amalgamation/sqlite3.??.c") {
+    system("git rm -f $o") == 0 || die("Deleting $o: $?");
+}
+
+my $depth = 0;
+my $acc = "";
+my $size = 0;
+my $max = 880000;
+my $ii = 0;
+my $o = sprintf("third_party/sqlite/amalgamation/sqlite3.%02d.c", $ii);
+
+print "Creating $o\n";
+open(O, ">$o") || die("Writing $o: $!");
+open(S, "git show $branch:third_party/sqlite/amalgamation/sqlite3.c|") || die("Reading sqlite3.c: $!");
+while(<S>) {
+    $acc .= $_;
+    if (m|^/[*]+ Begin file [^ ]+ [*]+/$|) {
+        $depth++;
+    } elsif (m|^/[*]+ End of [^ ]+ [*]+/$|) {
+        $depth--;
+        if (!$depth) {
+            if ($size + length($acc) > $max) {
+                my $was = $o;
+                ++$ii;
+                $o = sprintf("third_party/sqlite/amalgamation/sqlite3.%02d.c", $ii);
+                my $basename = pop @{[split('/', $o)]};
+                print O "\n";
+                print O "/* Chain include. */ \n";
+                print O "#include \"$basename\"\n";
+                close(O) || die("Closing $was: $!");
+                system("git add $was") == 0 || die("Adding $was: $?");
+
+                print "Creating $o\n";
+                open(O, ">$o") || die("Writing $o: $!");
+                $size = 0;
+            }
+            print O $acc;
+            $size += length($acc);
+            $acc = "";
+        }
+    }
+}
+close(S) || die("Reading sqlite3.c: $!");
+close(O) || die("Closing $o: $!");
+system("git add $o") == 0 || die("Adding $o: $?");
+
+open(P, "|patch -p1") || die("Applying patch: $?");
+print P <<EOF;
+diff --git a/third_party/sqlite/BUILD.gn b/third_party/sqlite/BUILD.gn
+index 6c90139..67dd6e9 100644
+--- a/third_party/sqlite/BUILD.gn
++++ b/third_party/sqlite/BUILD.gn
+@@ -37,7 +37,7 @@ if (!use_system_sqlite) {
+ 
+     sources = [
+       "amalgamation/config.h",
+-      "amalgamation/sqlite3.c",
++      "amalgamation/sqlite3.00.c",
+       "amalgamation/sqlite3.h",
+     ]
+ 
+EOF
+close(P) || die("Applying patch: $?");
+system("git add third_party/sqlite/BUILD.gn") == 0 || die("Adding BUILD.gn: $?");