added git_filter_repo_replace_text.sh

git/git_filter_repo_replace_text.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+#  vim:ts=4:sts=4:sw=4:et
+#
+#  Author: Hari Sekhon
+#  Date: 2024-01-30 19:05:59 +0000 (Tue, 30 Jan 2024)
+#
+#  https://github.com/HariSekhon/DevOps-Bash-tools
+#
+#  License: see accompanying Hari Sekhon LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+#
+#  https://www.linkedin.com/in/HariSekhon
+#
+
+set -euo pipefail
+[ -n "${DEBUG:-}" ] && set -x
+srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# shellcheck disable=SC1090,SC1091
+. "$srcdir/lib/utils.sh"
+
+# shellcheck disable=SC2034,SC2154
+usage_description="
+Rewrites the Git history using git filter-repo to replace a given token with another to scrub history
+
+<git_options> - passed literally to 'git filter-repo', can use this to only rewrite a revision range, eg. <starting_hashref>..<ending_hashref>
+
+
+DANGER: this rewrites Git history.
+        Do not use this carelessly as it rewrites Git history.
+        Always have a backup.
+        Do not do this on pushed branches unless you are an Expert and intend to
+"
+
+# used by usage() in lib/utils.sh
+# shellcheck disable=SC2034
+usage_args="<old_token> [<new_token>] [<git_options>]"
+
+help_usage "$@"
+
+min_args 2 "$@"
+
+old_token="$1"
+new_token="$2"
+shift || :
+shift || :
+
+opts=()
+if [ -n "${FORCE_GIT_REWRITE:-}" ]; then
+    opts+=(-f)
+fi
+
+if [ "${#old_token}" -lt 8 ]; then
+    echo "
+DANGER: refusing to replace a token less than 8 characters because this is likely to match other tokens and cause serious unintended consequences which could destroy your code base
+
+If you really intend to do this and known what you're doing, edit this code to bypass
+" >&2
+    exit 1
+fi
+
+echo
+echo "DANGER!!!"
+echo
+echo -n "You are about to replace all substrings of '$old_token' to '$new_token' - this could seriously damage you code base if you careless use a token that matches elsewhere"
+echo
+echo "Have you taken a backup?"
+echo
+read -r -p "DANGER: are you absolutely sure? (y/N)  " answer
+echo
+
+shopt -s nocasematch
+if ! [[ "$answer" =~ ^(y|yes)$ ]]; then
+    echo "Aborting..."
+    exit 1
+fi
+shopt -u nocasematch
+
+timestamp "Starting git filter-repo replacement"
+echo
+
+git filter-repo "${opts[@]}" --replace-text <(echo "$old_token==>$new_token") "$@"