From 4e734330dababa0aa76d488df81bc0f1d0d84d78 Mon Sep 17 00:00:00 2001
From: hygienic-books <hygienic-books@tentic.net>
Date: Wed, 1 Nov 2023 03:47:34 +0100
Subject: [PATCH] feat(os): Add helper functions to manipulate HOOKS array (#6)

---
 setup.sh | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/setup.sh b/setup.sh
index c2e51d5..1922387 100644
--- a/setup.sh
+++ b/setup.sh
@@ -461,6 +461,39 @@ function set_locale () {
     printf -- '%s\n' 'LANG=en_US.UTF-8' > '/mnt/etc/locale.conf'
 }
 
+function in_file_in_array_insert_n_before_m () {
+    local arg_file arg_array arg_string arg_precede
+    arg_file="${1:?}"
+    arg_array="${2:?}"
+    arg_string="${3:?}"
+    arg_precede="${4:?}"
+    sed -ri \
+        -e 's'$'\x1''('"${arg_array}"'=)(.*?[( ])('"${arg_precede}"')([) ][^\r\n\f]*)'$'\x1''\1\2'"${arg_string}"' \3\4'$'\x1''g' \
+        "${arg_file}"
+}
+
+function in_file_in_array_insert_n_at_the_end () {
+    local arg_file arg_array arg_string
+    arg_file="${1:?}"
+    arg_array="${2:?}"
+    arg_string="${3:?}"
+    sed -ri \
+        -e 's'$'\x1''('"${arg_array}"'=)([^)]*)(\)[^\r\n\f]*)'$'\x1''\1\2 '"${arg_string}"'\3'$'\x1''g' \
+        "${arg_file}"
+}
+
+function in_file_in_array_remove_n () {
+    local arg_file arg_array arg_string
+    arg_file="${1:?}"
+    arg_array="${2:?}"
+    arg_string="${3:?}"
+    sed -ri \
+        -e 's'$'\x1''((\()('"${arg_string}"')(\)))'$'\x1''\2\4'$'\x1''g' \
+        -e 's'$'\x1''('"${arg_array}"'=.*?)([[:space:]]+'"${arg_string}"')([[:space:]]+|\))'$'\x1''\1\3'$'\x1''g' \
+        -e 's'$'\x1''('"${arg_array}"'=.*?)([[:space:]]+|\()('"${arg_string}"'[[:space:]]+)'$'\x1''\1\2'$'\x1''g' \
+        "${arg_file}"
+}
+
 function add_zfs_hook_to_initramfs () {
     #1.16
     # Add zfs hook, remove fsck hook from initramfs.