From 3b9ceeff5b57efd94fa1a1451cbb99a3b7ab3e11 Mon Sep 17 00:00:00 2001
From: Will Dietz <will.dietz@sifive.com>
Date: Thu, 15 Aug 2024 15:15:47 -0500
Subject: [PATCH] [NFC] Add circt copy of upstream's linkify. (#7521)

---
 utils/linkify.sh | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100755 utils/linkify.sh

diff --git a/utils/linkify.sh b/utils/linkify.sh
new file mode 100755
index 000000000000..1113552eaaea
--- /dev/null
+++ b/utils/linkify.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+# This script linkifies (i.e. makes clickable in the terminal) text that appears
+# to be a pull request or issue reference (e.g. #12345 or PR12345) or a
+# 40-character commit hash (e.g. abc123). You can configure git to automatically
+# send the output of commands that pipe their output through a pager, such as
+# `git log` and `git show`, through this script by running this command from
+# within your CIRCT checkout:
+#
+# git config core.pager 'utils/linkify.sh | pager'
+#
+# Consider:
+#
+# git config core.pager 'utils/linkify.sh | ${PAGER:-less}'
+#
+# The pager command is run from the root of the repository even if the git
+# command is run from a subdirectory, so the relative path should always work.
+#
+# It requires OSC 8 support in the terminal. For a list of compatible terminals,
+# see https://github.com/Alhadis/OSC8-Adoption
+#
+# Copied from upstream LLVM's llvm/utils/git/linkify.
+
+sed \
+  -e 's,\(#\|\bPR\)\([0-9]\+\),\x1b]8;;https://github.com/llvm/circt/issues/\2\x1b\\\0\x1b]8;;\x1b\\,gi' \
+  -e 's,[0-9a-f]\{40\},\x1b]8;;https://github.com/llvm/circt/commit/\0\x1b\\\0\x1b]8;;\x1b\\,g'