From 3349f51a23a4be33ccad8e2131bb99dde82c6317 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Tue, 30 Apr 2024 13:40:11 +0200
Subject: [PATCH 01/18] ca/deb/mkdir

---
 cd.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cd.sh b/cd.sh
index eb54620..47a94a6 100644
--- a/cd.sh
+++ b/cd.sh
@@ -197,7 +197,10 @@ local target
 local text
     cd_step "Copy CA"
     case "${CD_OS_NAME}" in
-        "debian") target="/usr/local/share/ca-certificates" ;;
+        "debian")
+            target="/usr/local/share/ca-certificates"
+            cd_mkdir "${target}"
+        ;;
         "alma") target="/etc/pki/ca-trust/source/anchors" ;;
         *) cd_error_os "cd_copy_ca" ;;
     esac

From 179f2344019b0d65527a0b2dcd45252265fe4ef5 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Tue, 30 Apr 2024 13:44:12 +0200
Subject: [PATCH 02/18] cat/corner

---
 cd.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cd.sh b/cd.sh
index 47a94a6..755d6bb 100644
--- a/cd.sh
+++ b/cd.sh
@@ -305,7 +305,7 @@ ${1}
 
 cd_cat () {
     if [ -f "${1}" ] ; then
-        echo " ↙ $(realpath "${1}")"
+        echo "╭╴$(realpath "${1}")"
         cat "${1}" || exit
     fi
 }

From dc52d4f73dbdbbf5061d6f1cdfbcb4347d2867f4 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Tue, 30 Apr 2024 13:45:05 +0200
Subject: [PATCH 03/18] split

---
 cd.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cd.sh b/cd.sh
index 755d6bb..cc02193 100644
--- a/cd.sh
+++ b/cd.sh
@@ -268,6 +268,7 @@ local url
     root="$(mktemp --directory)" || exit
     echo "${root}"
     for repository in "${@}" ; do
+        cd_split
         url="${CD_PROJECTS_URL}/${repository}"
         echo -n "
 ${url}

From 338f437861228554bc61005f83cfd1879297fb2e Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Tue, 30 Apr 2024 13:46:23 +0200
Subject: [PATCH 04/18] mv

---
 cd.sh | 46 +++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/cd.sh b/cd.sh
index cc02193..fddb122 100644
--- a/cd.sh
+++ b/cd.sh
@@ -14,11 +14,11 @@ cd_main () {
     cd_set_dns_resolving ${CD_DNS}
     cd_set_packages_repositories
     cd_set_packages_configuration
+    cd_write_ca_certificates
     cd_set_https_verification_off
     cd_update_packages_catalog
     cd_install_packages_tools
     cd_install_ca_certificates
-    cd_write_ca_certificates
     cd_update_ca_certificates
     cd_set_https_verification_on
     cd_update_packages_catalog
@@ -151,6 +151,28 @@ Dir::Etc::SourceParts \"\";
     esac
 }
 
+cd_write_ca_certificates () {
+local index
+local target
+local text
+    cd_step "Copy CA"
+    case "${CD_OS_NAME}" in
+        "debian")
+            target="/usr/local/share/ca-certificates"
+            cd_mkdir "${target}"
+        ;;
+        "alma") target="/etc/pki/ca-trust/source/anchors" ;;
+        *) cd_error_os "cd_copy_ca" ;;
+    esac
+    index=1
+    eval "text=\${CD_CA_${index}}"
+    while [ "${text}" ] ; do
+        cd_write "${target}/${index}.crt" "${text}"
+        index=$((index+1))
+        eval "text=\${CD_CA_${index}}"
+    done
+}
+
 cd_set_https_verification_off () {
     cd_step "Set HTTPS verification off"
     case "${CD_OS_NAME}" in
@@ -191,28 +213,6 @@ cd_install_ca_certificates () {
     cd_install_package "${CD_CA_PACKAGE}"
 }
 
-cd_write_ca_certificates () {
-local index
-local target
-local text
-    cd_step "Copy CA"
-    case "${CD_OS_NAME}" in
-        "debian")
-            target="/usr/local/share/ca-certificates"
-            cd_mkdir "${target}"
-        ;;
-        "alma") target="/etc/pki/ca-trust/source/anchors" ;;
-        *) cd_error_os "cd_copy_ca" ;;
-    esac
-    index=1
-    eval "text=\${CD_CA_${index}}"
-    while [ "${text}" ] ; do
-        cd_write "${target}/${index}.crt" "${text}"
-        index=$((index+1))
-        eval "text=\${CD_CA_${index}}"
-    done
-}
-
 cd_update_ca_certificates () {
     cd_step "Update CA"
     case "${CD_OS_NAME}" in

From a5177e565bbd60a85485690fe55f456735034bbb Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Wed, 1 May 2024 20:23:33 +0200
Subject: [PATCH 05/18] count ca

---
 cd.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cd.sh b/cd.sh
index fddb122..707cafa 100644
--- a/cd.sh
+++ b/cd.sh
@@ -168,6 +168,7 @@ local text
     eval "text=\${CD_CA_${index}}"
     while [ "${text}" ] ; do
         cd_write "${target}/${index}.crt" "${text}"
+        CD_CA=$((CD_CA+1))
         index=$((index+1))
         eval "text=\${CD_CA_${index}}"
     done

From f4b875930ed32fd28ce9f6160c16bbd27de88d2d Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Wed, 1 May 2024 20:26:11 +0200
Subject: [PATCH 06/18] cd_ca/https

---
 cd.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cd.sh b/cd.sh
index 707cafa..2b5abdf 100644
--- a/cd.sh
+++ b/cd.sh
@@ -15,12 +15,12 @@ cd_main () {
     cd_set_packages_repositories
     cd_set_packages_configuration
     cd_write_ca_certificates
-    cd_set_https_verification_off
+    [ "${CD_CA}" ] && cd_set_https_verification_off
     cd_update_packages_catalog
     cd_install_packages_tools
     cd_install_ca_certificates
     cd_update_ca_certificates
-    cd_set_https_verification_on
+    [ "${CD_CA}" ] && cd_set_https_verification_on
     cd_update_packages_catalog
     cd_upgrade_packages
     cd_install_git

From 1b1d94724bf65f987c6c5ec3c3a4b422b276610f Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Wed, 1 May 2024 20:33:24 +0200
Subject: [PATCH 07/18] splits

---
 cd.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cd.sh b/cd.sh
index 2b5abdf..6eff02a 100644
--- a/cd.sh
+++ b/cd.sh
@@ -271,7 +271,7 @@ local url
     for repository in "${@}" ; do
         cd_split
         url="${CD_PROJECTS_URL}/${repository}"
-        echo -n "
+        echo -n "\
 ${url}
 ↓
 "
@@ -288,6 +288,7 @@ ${CD_PYTHON_PACKAGES}
         "${path}" "${CD_PYTHON_PACKAGES}" \
         || exit
     done
+    cd_split
     cd_rm "${root}"
 }
 

From 5787bf6fcafc176d2aa7292670ae142824f32ae8 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 08:38:49 +0200
Subject: [PATCH 08/18] if inside https functions

---
 cd.sh | 40 ++++++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/cd.sh b/cd.sh
index 6eff02a..d5a54ae 100644
--- a/cd.sh
+++ b/cd.sh
@@ -15,12 +15,12 @@ cd_main () {
     cd_set_packages_repositories
     cd_set_packages_configuration
     cd_write_ca_certificates
-    [ "${CD_CA}" ] && cd_set_https_verification_off
+    cd_set_https_verification_off
     cd_update_packages_catalog
     cd_install_packages_tools
     cd_install_ca_certificates
     cd_update_ca_certificates
-    [ "${CD_CA}" ] && cd_set_https_verification_on
+    cd_set_https_verification_on
     cd_update_packages_catalog
     cd_upgrade_packages
     cd_install_git
@@ -175,20 +175,22 @@ local text
 }
 
 cd_set_https_verification_off () {
-    cd_step "Set HTTPS verification off"
-    case "${CD_OS_NAME}" in
-        "debian")
-            cd_write "/etc/apt/apt.conf.d/https" "\
+    if [ "${CD_CA}" ] ; then
+        cd_step "Set HTTPS verification off"
+        case "${CD_OS_NAME}" in
+            "debian")
+                cd_write "/etc/apt/apt.conf.d/https" "\
 Acquire::https::Verify-Peer False;
 "
-        ;;
-        "alma")
-            cd_write "/etc/dnf/dnf.conf.d/https.conf" "\
+            ;;
+            "alma")
+                cd_write "/etc/dnf/dnf.conf.d/https.conf" "\
 sslverify=False
 "
-        ;;
-        *) cd_error_os "cd_set_https_verification_off" ;;
-    esac
+            ;;
+            *) cd_error_os "cd_set_https_verification_off" ;;
+        esac
+    fi
 }
 
 cd_update_packages_catalog () {
@@ -224,12 +226,14 @@ cd_update_ca_certificates () {
 }
 
 cd_set_https_verification_on () {
-    cd_step "Set HTTPS verification on"
-    case "${CD_OS_NAME}" in
-        "debian") cd_rm "/etc/apt/apt.conf.d/https" ;;
-        "alma") cd_rm "/etc/dnf/dnf.conf.d/https.conf" ;;
-        *) cd_error_os "cd_set_https_verification_on" ;;
-    esac
+    if [ "${CD_CA}" ] ; then
+        cd_step "Set HTTPS verification on"
+        case "${CD_OS_NAME}" in
+            "debian") cd_rm "/etc/apt/apt.conf.d/https" ;;
+            "alma") cd_rm "/etc/dnf/dnf.conf.d/https.conf" ;;
+            *) cd_error_os "cd_set_https_verification_on" ;;
+        esac
+    fi
 }
 
 cd_upgrade_packages () {

From 38d213895037aac4d9fb0a17aef0a2db831eb199 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 09:33:50 +0200
Subject: [PATCH 09/18] cd_ca_root

---
 cd.sh | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/cd.sh b/cd.sh
index d5a54ae..981908d 100644
--- a/cd.sh
+++ b/cd.sh
@@ -42,10 +42,12 @@ cd_set_environment () {
     #
     case "${CD_OS_NAME}" in
         "debian")
+            CD_CA_ROOT="/usr/local/share/ca-certificates"
             CD_PYTHON_PACKAGE="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
         ;;
         "alma")
+            CD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
             case "${CD_OS_VERSION}" in
                 "8"|"9")
                     CD_PYTHON_PACKAGE="python3.11"
@@ -153,21 +155,13 @@ Dir::Etc::SourceParts \"\";
 
 cd_write_ca_certificates () {
 local index
-local target
 local text
     cd_step "Copy CA"
-    case "${CD_OS_NAME}" in
-        "debian")
-            target="/usr/local/share/ca-certificates"
-            cd_mkdir "${target}"
-        ;;
-        "alma") target="/etc/pki/ca-trust/source/anchors" ;;
-        *) cd_error_os "cd_copy_ca" ;;
-    esac
+    cd_mkdir "${CD_CA_ROOT}"
     index=1
     eval "text=\${CD_CA_${index}}"
     while [ "${text}" ] ; do
-        cd_write "${target}/${index}.crt" "${text}"
+        cd_write "${CD_CA_ROOT}/${index}.crt" "${text}"
         CD_CA=$((CD_CA+1))
         index=$((index+1))
         eval "text=\${CD_CA_${index}}"

From e745890b3305127b3be539b4aafdf3db8bd2b533 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 09:39:17 +0200
Subject: [PATCH 10/18] shrink

---
 cd.sh | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/cd.sh b/cd.sh
index 981908d..8aa2714 100644
--- a/cd.sh
+++ b/cd.sh
@@ -53,10 +53,10 @@ cd_set_environment () {
                     CD_PYTHON_PACKAGE="python3.11"
                     CD_PYTHON_PACKAGES="/usr/lib64/python3.11/site-packages"
                 ;;
-                *) cd_error_os "CD_OS_VERSION" ;;
+                *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
             esac
         ;;
-        *) cd_error_os "CD_OS_NAME" ;;
+        *) cd_error_os "CD_OS_NAME=${CD_OS_NAME}" ;;
     esac
     # ci / github
     if [ "${GITHUB_ACTIONS}" ] ; then
@@ -131,7 +131,6 @@ deb https://deb.debian.org/debian-security bookworm-security main
             cd_sed "${file}" "|^m|# m|" "|^# b|b|"
             cd_cat "${file}"
         ;;
-        *) cd_error_os "cd_set_packages_repositories" ;;
     esac
 }
 
@@ -149,7 +148,6 @@ Dir::Etc::SourceParts \"\";
 "
         ;;
         "alma") cd_mkdir "/etc/dnf/dnf.conf.d" ;;
-        *) cd_error_os "cd_set_packages_configuration" ;;
     esac
 }
 
@@ -182,7 +180,6 @@ Acquire::https::Verify-Peer False;
 sslverify=False
 "
             ;;
-            *) cd_error_os "cd_set_https_verification_off" ;;
         esac
     fi
 }
@@ -192,7 +189,6 @@ cd_update_packages_catalog () {
     case "${CD_OS_NAME}" in
         "debian") apt-get update || exit ;;
         "alma") dnf makecache || exit ;;
-        *) cd_error_os "cd_update_packages_catalog" ;;
     esac
 }
 
@@ -201,7 +197,6 @@ cd_install_packages_tools () {
     case "${CD_OS_NAME}" in
         "debian") cd_install_package "apt-utils" ;;
         "alma") echo "TODO" ;;
-        *) cd_error_os "cd_install_packages_tools" ;;
     esac
 }
 
@@ -215,7 +210,6 @@ cd_update_ca_certificates () {
     case "${CD_OS_NAME}" in
         "debian") update-ca-certificates || exit ;;
         "alma") update-ca-trust || exit ;;
-        *) cd_error_os "cd_update_ca" ;;
     esac
 }
 
@@ -225,7 +219,6 @@ cd_set_https_verification_on () {
         case "${CD_OS_NAME}" in
             "debian") cd_rm "/etc/apt/apt.conf.d/https" ;;
             "alma") cd_rm "/etc/dnf/dnf.conf.d/https.conf" ;;
-            *) cd_error_os "cd_set_https_verification_on" ;;
         esac
     fi
 }
@@ -235,7 +228,6 @@ cd_upgrade_packages () {
     case "${CD_OS_NAME}" in
         "debian") apt-get upgrade --assume-yes || exit ;;
         "alma") dnf upgrade --assumeyes || exit ;;
-        *) cd_error_os "cd_upgrade_packages" ;;
     esac
 }
 
@@ -254,7 +246,6 @@ cd_clean_packages_cache () {
     case "${CD_OS_NAME}" in
         "debian") apt-get clean || exit ;;
         "alma") dnf clean all || exit ;;
-        *) cd_error_os "cd_clean_packages_cache" ;;
     esac
 }
 
@@ -325,7 +316,6 @@ cd_install_package () {
         case "${CD_OS_NAME}" in
             "debian") apt-get install --assume-yes "${1}" || exit ;;
             "alma") dnf install --assumeyes "${1}" || exit ;;
-            *) exit 1 ;;
         esac
     fi
 }

From b3adfe318253ee9f02eeaa0b6d013cc254df0cba Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 09:59:17 +0200
Subject: [PATCH 11/18] cd_echo

---
 cd.sh | 41 ++++++++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/cd.sh b/cd.sh
index 8aa2714..fdddc65 100644
--- a/cd.sh
+++ b/cd.sh
@@ -33,6 +33,7 @@ cd_main () {
 # functions
 
 cd_set_environment () {
+local variable
     cd_step "Set environment"
     #
     CD_CA_PACKAGE="ca-certificates"
@@ -42,12 +43,11 @@ cd_set_environment () {
     #
     case "${CD_OS_NAME}" in
         "debian")
-            CD_CA_ROOT="/usr/local/share/ca-certificates"
             CD_PYTHON_PACKAGE="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
+            CD_CA_ROOT="/usr/local/share/ca-certificates"
         ;;
         "alma")
-            CD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
             case "${CD_OS_VERSION}" in
                 "8"|"9")
                     CD_PYTHON_PACKAGE="python3.11"
@@ -55,6 +55,7 @@ cd_set_environment () {
                 ;;
                 *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
             esac
+            CD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
         ;;
         *) cd_error_os "CD_OS_NAME=${CD_OS_NAME}" ;;
     esac
@@ -83,23 +84,16 @@ cd_set_environment () {
     CD_PROJECTS_URL="${CD_SERVER_URL}/${CD_PROJECTS_GROUP}"
     CD_PROJECT_URL="${CD_PROJECTS_URL}/${CD_PROJECT_NAME}"
     #
-    echo -n "\
-CD_OS_NAME=${CD_OS_NAME}
-CD_OS_VERSION=${CD_OS_VERSION}
-#
-CD_DNS_FILE=${CD_DNS_FILE}
-#
-CD_PYTHON_COMMAND=${CD_PYTHON_COMMAND}
-CD_PYTHON_PACKAGES=${CD_PYTHON_PACKAGES}
-#
-CD_SERVER_URL=${CD_SERVER_URL}
-CD_PROJECTS_GROUP=${CD_PROJECTS_GROUP}
-CD_PROJECT_NAME=${CD_PROJECT_NAME}
-CD_PROJECT_BRANCH=${CD_PROJECT_BRANCH}
-#
-CD_PROJECTS_URL=${CD_PROJECTS_URL}
-CD_PROJECT_URL=${CD_PROJECT_URL}
-"
+    cd_echo "CD_OS_NAME" "CD_OS_VERSION"
+    cd_split
+    cd_echo "CD_DNS_FILE"
+    cd_split
+    cd_echo "CD_PYTHON_PACKAGE" "CD_PYTHON_PACKAGES" "CD_CA_ROOT"
+    cd_split
+    cd_echo "CD_SERVER_URL" \
+        "CD_PROJECTS_GROUP" "CD_PROJECT_NAME" "CD_PROJECT_BRANCH"
+    cd_split
+    cd_echo "CD_PROJECTS_URL" "CD_PROJECT_URL"
 }
 
 cd_set_dns_resolving () {
@@ -302,6 +296,15 @@ cd_cat () {
     fi
 }
 
+cd_echo () {
+local name
+    if [ "${1}" ] ; then
+        for name in "${@}" ; do
+            eval "echo ${name}=\${${name}}"
+        done
+    fi
+}
+
 cd_error_ci () {
     echo "× CI: ${1}"
     exit 1

From 0cb9952b32689ed525b24e2ba816f1f824b000e4 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:19:18 +0200
Subject: [PATCH 12/18] cd_nop

---
 cd.sh | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/cd.sh b/cd.sh
index fdddc65..a0f90ba 100644
--- a/cd.sh
+++ b/cd.sh
@@ -8,7 +8,7 @@ cd \
 rwx \
 "
 
-# steps
+# main
 cd_main () {
     cd_set_environment
     cd_set_dns_resolving ${CD_DNS}
@@ -30,7 +30,7 @@ cd_main () {
     cd_execute_python_module ${CD_PYTHON_MODULES}
 }
 
-# functions
+# steps
 
 cd_set_environment () {
 local variable
@@ -43,6 +43,10 @@ local variable
     #
     case "${CD_OS_NAME}" in
         "debian")
+            case "${CD_OS_VERSION}" in
+                "bookworm"|"bullseye") cd_nop ;;
+                *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
+            esac
             CD_PYTHON_PACKAGE="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
             CD_CA_ROOT="/usr/local/share/ca-certificates"
@@ -114,10 +118,10 @@ local file
     case "${CD_OS_NAME}" in
         "debian")
             cd_write "/etc/apt/sources.list" "\
-deb https://deb.debian.org/debian bookworm main
-deb https://deb.debian.org/debian bookworm-backports main
-deb https://deb.debian.org/debian bookworm-updates main
-deb https://deb.debian.org/debian-security bookworm-security main
+deb https://deb.debian.org/debian ${CD_OS_VERSION} main
+deb https://deb.debian.org/debian ${CD_OS_VERSION}-backports main
+deb https://deb.debian.org/debian ${CD_OS_VERSION}-updates main
+deb https://deb.debian.org/debian-security ${CD_OS_VERSION}-security main
 "
         ;;
         "alma")
@@ -287,7 +291,7 @@ ${1}
     "${CD_PYTHON_COMMAND}" -m "${1}" "${CD_STEP}" "${self}"
 }
 
-# tools
+# functions
 
 cd_cat () {
     if [ -f "${1}" ] ; then
@@ -330,6 +334,10 @@ cd_mkdir () {
     fi
 }
 
+cd_nop () {
+    true
+}
+
 cd_rm () {
     if [ -e "${1}" ] ; then
         echo "← $(realpath "${1}")"
@@ -377,5 +385,5 @@ local text="${2}"
     fi
 }
 
-# main
+# run
 cd_main

From c356baee6de36204ef1ef753917dd61ab504becb Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:27:18 +0200
Subject: [PATCH 13/18] dns

---
 cd.sh | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/cd.sh b/cd.sh
index a0f90ba..930e37e 100644
--- a/cd.sh
+++ b/cd.sh
@@ -1,8 +1,10 @@
 #! /usr/bin/env sh
 
-[ "${CD_DNS}" ] || CD_DNS="\
+# defaults
+CD_DEFAULT_DNS="\
 9.9.9.9 \
 "
+
 CD_PYTHON_MODULES="\
 cd \
 rwx \
@@ -11,7 +13,7 @@ rwx \
 # main
 cd_main () {
     cd_set_environment
-    cd_set_dns_resolving ${CD_DNS}
+    cd_set_dns_resolving
     cd_set_packages_repositories
     cd_set_packages_configuration
     cd_write_ca_certificates
@@ -102,9 +104,11 @@ local variable
 
 cd_set_dns_resolving () {
 local server
+local servers
 local text=""
     cd_step "Set DNS resolving"
-    for server in "${@}" ; do
+    "${CD_DNS}" && servers="${CD_DNS}" || servers="${CD_DEFAULT_DNS}"
+    for server in ${servers} ; do
         text="${text}nameserver ${server}
 "
     done

From e891d90b4360902a102c7805f149fc53e1ee5ddf Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:28:34 +0200
Subject: [PATCH 14/18] nop

---
 cd.sh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/cd.sh b/cd.sh
index 930e37e..ccc0d49 100644
--- a/cd.sh
+++ b/cd.sh
@@ -338,9 +338,7 @@ cd_mkdir () {
     fi
 }
 
-cd_nop () {
-    true
-}
+cd_nop () { true ; }
 
 cd_rm () {
     if [ -e "${1}" ] ; then

From efac9b8463b7454b812b79e17683ac6805629be7 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:29:43 +0200
Subject: [PATCH 15/18] cd_write

---
 cd.sh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/cd.sh b/cd.sh
index ccc0d49..ca22d36 100644
--- a/cd.sh
+++ b/cd.sh
@@ -380,9 +380,7 @@ cd_write () {
 local file="${1}"
 local text="${2}"
     if [ "${file}" ] ; then
-        echo -n "${text}" \
-        > "${file}" \
-        || exit
+        echo -n "${text}" > "${file}" || exit
         cd_cat "${file}"
     fi
 }

From 82e2249bbfc6c072cca870729342d732f8e010c0 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:33:34 +0200
Subject: [PATCH 16/18] cd_error_os

---
 cd.sh | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/cd.sh b/cd.sh
index ca22d36..4ef96ea 100644
--- a/cd.sh
+++ b/cd.sh
@@ -47,7 +47,7 @@ local variable
         "debian")
             case "${CD_OS_VERSION}" in
                 "bookworm"|"bullseye") cd_nop ;;
-                *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
+                *) cd_error_os "CD_OS_VERSION" ;;
             esac
             CD_PYTHON_PACKAGE="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
@@ -59,11 +59,11 @@ local variable
                     CD_PYTHON_PACKAGE="python3.11"
                     CD_PYTHON_PACKAGES="/usr/lib64/python3.11/site-packages"
                 ;;
-                *) cd_error_os "CD_OS_VERSION=${CD_OS_VERSION}" ;;
+                *) cd_error_os "CD_OS_VERSION" ;;
             esac
             CD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
         ;;
-        *) cd_error_os "CD_OS_NAME=${CD_OS_NAME}" ;;
+        *) cd_error_os "CD_OS_NAME" ;;
     esac
     # ci / github
     if [ "${GITHUB_ACTIONS}" ] ; then
@@ -317,8 +317,11 @@ cd_error_ci () {
     echo "× CI: ${1}"
     exit 1
 }
+
 cd_error_os () {
-    echo "× OS: ${1}"
+local variable="${1}"
+    echo -n "× OS: "
+    cd_echo "${variable}"
     exit 2
 }
 

From 082f231b60477f8e9a2139bd150f57fb359954f4 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:57:24 +0200
Subject: [PATCH 17/18] fix

---
 cd.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cd.sh b/cd.sh
index 4ef96ea..8d3a52c 100644
--- a/cd.sh
+++ b/cd.sh
@@ -107,7 +107,7 @@ local server
 local servers
 local text=""
     cd_step "Set DNS resolving"
-    "${CD_DNS}" && servers="${CD_DNS}" || servers="${CD_DEFAULT_DNS}"
+    [ "${CD_DNS}" ] && servers="${CD_DNS}" || servers="${CD_DEFAULT_DNS}"
     for server in ${servers} ; do
         text="${text}nameserver ${server}
 "

From 15bd46e9aad2db8cd9a63d6210a0ab4973be4dc9 Mon Sep 17 00:00:00 2001
From: Marc Beninca <git@marc.beninca.link>
Date: Thu, 2 May 2024 10:58:02 +0200
Subject: [PATCH 18/18] variables

---
 readme.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/readme.md b/readme.md
index 95f9c4b..f2dcd3e 100644
--- a/readme.md
+++ b/readme.md
@@ -9,6 +9,12 @@
   * [X] ForgeJo / Gitea / GitHub
   * [X] GitLab
 
+## How
+
+### Variables
+
+| CD_DNS | Space separated servers |
+
 ## Tasks
 
 * use constants for OS names