Add svlint (#670)

README.md

@@ -205,6 +205,7 @@ Other dedicated linters that are built-in are:
 | [StandardRB][27]                       | `standardrb`           |
 | [statix check][33]                     | `statix`               |
 | [stylelint][29]                        | `stylelint`            |
+| [svlint][svlint]                       | `svlint`               |
 | [SwiftLint][swiftlint]                 | `swiftlint`            |
 | [systemd-analyze][systemd-analyze]     | `systemd-analyze`      |
 | [systemdlint][systemdlint]             | `systemdlint`          |
@@ -577,4 +578,5 @@ busted tests/
 [systemd-analyze]: https://man.archlinux.org/man/systemd-analyze.1
 [awk]: https://www.gnu.org/software/gawk/
 [yq]: https://mikefarah.gitbook.io/yq
-[slang]: https://github.com/MikePopoloski/slang
+[svlint]: https://github.com/dalance/svlint
+[slang]: https://github.com/MikePopoloski/slang

lua/lint/linters/svlint.lua

@@ -0,0 +1,17 @@
+local pattern = ".*(Fail)......([^:]+):(%d+):(%d+).*hint: (.+)%."
+local groups = { "severity", "file", "lnum", "col", "message" }
+
+local severities = {
+  ["Fail"] = vim.diagnostic.severity.WARN,
+}
+
+return {
+  cmd = "svlint",
+  stdin = false,
+  stream = "stdout",
+  args = {
+    "--oneline",
+  },
+  ignore_exitcode = true,
+  parser = require("lint.parser").from_pattern(pattern, groups, severities, { ["source"] = "svlint" }),
+}