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<?php
$mysql = new mysqli("localhost", "webserver", "empty", "buildmaster");
if ($mysql->connect_error) {
die("Connection failed: " . $mysql->connect_error);
}
$result = $mysql -> query(
"SELECT DISTINCT " .
"`todos`.`id`," .
"`todos`.`file`," .
"`todos`.`line`," .
"`todos`.`description` " .
"FROM `todos`;"
);
if ($result -> num_rows > 0) {
while ($row = $result->fetch_assoc())
$knot_rows[$row["id"]] =
$row["file"]. " (line ".$row["line"]."):\\n".str_replace("\"","\\\"",$row["description"]);
unset($knots);
foreach ($knot_rows as $knot)
$knots=$knots . "\"" . $knot . "\";\n";
}
$result = $mysql -> query(
"SELECT DISTINCT " .
"`todo_links`.`dependent`," .
"`todo_links`.`depending_on` " .
"FROM `todo_links`;"
);
if ($result -> num_rows > 0) {
$count = 0;
while ($row = $result->fetch_assoc()) {
$link_rows[$count]["dependent"] =
$knot_rows[$row["dependent"]];
$link_rows[$count]["depending_on"] =
$knot_rows[$row["depending_on"]];
$count++;
}
unset($edges);
foreach ($link_rows as $link)
$edges=$edges . "\"" . $link["depending_on"] . "\" -> \"" . $link["dependent"] . "\";\n";
}
$knots = str_replace("\$","\\\$",$knots);
$edges = str_replace("\$","\\\$",$edges);
header ("Content-type: image/png");
passthru(
"dot -Tpng -o/dev/stdout /dev/stdin <<EOF\n" .
"digraph dependencies {\n" .
"rankdir=LR;\n" .
"fontname=dejavu;\n" .
$knots .
$edges .
"}\n" .
"EOF\n"
);
?>
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