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When a linter raises a message at a nonexistent line, don't fatal during rendering

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Summary:
See PHI1782. If a linter raises a message at a line which does not exist in the file, render a confused warning rather than fataling.

This is a long-existing issue which was exacerbated by D21044.

Test Plan: Modified a linter to raise issues at line 99999. Before change: fatal in console rendering. After change: reasonable rendering.

Differential Revision: https://secure.phabricator.com/D21357
This commit is contained in:
epriestley 2020-06-12 12:05:31 -07:00
parent 92f860ae9b
commit 1e09a0ee7e
1 changed files with 35 additions and 0 deletions
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35
src/lint/renderer/ArcanistConsoleLintRenderer.php
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@ -122,6 +122,41 @@ final class ArcanistConsoleLintRenderer extends ArcanistLintRenderer {
$old_impact = substr_count($original, "\n") + 1; $old_impact = substr_count($original, "\n") + 1;
$start = $line; $start = $line;
// See PHI1782. If a linter raises a message at a line that does not
// exist, just render a warning message.
// Linters are permitted to raise a warning at the very end of a file.
// For example, if a file is 13 lines long, it is valid to raise a message
// on line 14 as long as the character position is 1 or unspecified and
// there is no "original" text.
$max_old = count($old_lines);
$invalid_position = false;
if ($start > ($max_old + 1)) {
$invalid_position = true;
} else if ($start > $max_old) {
if (strlen($original)) {
$invalid_position = true;
} else if ($char !== null && $char !== 1) {
$invalid_position = true;
}
}
if ($invalid_position) {
$warning = $this->renderLine(
$start,
pht(
'(This message was raised at line %s, but the file only has '.
'%s line(s).)',
new PhutilNumber($start),
new PhutilNumber($max_old)),
false,
'?');
return $warning."\n\n";
}
if ($message->isPatchable()) { if ($message->isPatchable()) {
$patch_offset = $line_map[$line] + ($char - 1); $patch_offset = $line_map[$line] + ($char - 1);