V8.00.000.2025.06.17

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

func/cdi_1000_helper/1080_helper_chroot.sh

@@ -0,0 +1,134 @@
+#!/bin/bash
+# SPDX-Version: 3.0
+# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
+# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
+# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
+# SPDX-FileType: SOURCE
+# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
+# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
+# SPDX-PackageName: CISS.debian.installer
+# SPDX-Security-Contact: security@coresecret.eu
+
+guard_sourcing
+
+#######################################
+# Use do_in_target() for:
+#   - simple commands (e.g., dpkg, ln, mkdir, apt, etc.).
+# Use do_in_target_script() for:
+#   - all shell scripts, redirects, pipes, conditions, loops, or subshells.
+#######################################
+
+#######################################
+# Wrapper for executing commands in the desired chroot environment.
+# Globals:
+#   ERR_CHRT_COMMAND
+#   TERM
+# Arguments:
+#   1: Target of the chroot environment.
+#   2: Commands and options and parameters to be executed in chroot.
+# Returns:
+#   0: on success
+#   ERR_CHRT_COMMAND: on failure
+#######################################
+do_in_target() {
+  declare    var_chroot_target="$1"; shift
+  declare -a ary_chroot_command=("$@")
+  declare -r var_default_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
+  if (( ${#ary_chroot_command[@]} == 0 )); then
+
+    do_log "emergency" "file_only" "1080() Empty command passed to 'do_in_target()'."
+    return "${ERR_CHRT_COMMAND}"
+
+  fi
+
+  if ! chroot "${var_chroot_target}" /usr/bin/env -i PATH="${var_default_path}" which "${ary_chroot_command[0]}" &>/dev/null; then
+
+    do_log "emergency" "file_only" "1080() Binary: '${ary_chroot_command[0]}' not found in target 'PATH=${var_default_path}'."
+    do_log "emergency" "file_only" "1080() Command: [chroot ${var_chroot_target} /usr/bin/env -i PATH=${var_default_path} which ${ary_chroot_command[0]} &>/dev/null]."
+    return "${ERR_CHRT_COMMAND}"
+
+  fi
+
+  if ! chroot "${var_chroot_target}" /usr/bin/env -i \
+    HOME="/root" \
+    PATH="${var_default_path}" \
+    TERM="${TERM}" \
+    LANG="C.UTF-8" \
+    LC_ALL="C.UTF-8" \
+    DEBIAN_FRONTEND="noninteractive" \
+    APT_LISTCHANGES_FRONTEND="none" \
+    "${ary_chroot_command[@]}"
+
+  then
+
+    do_log "emergency" "file_only" "1080() Command: [chroot ${var_chroot_target} /usr/bin/env -i HOME=/root PATH=${var_default_path} TERM=${TERM} LANG=C.UTF-8 LC_ALL=C.UTF-8 DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none ${ary_chroot_command[*]}] failed."
+    return "${ERR_CHRT_COMMAND}"
+
+  else
+
+    do_log "info" "file_only" "1080() Command: [chroot ${var_chroot_target} /usr/bin/env -i HOME=/root PATH=${var_default_path} TERM=${TERM} LANG=C.UTF-8 LC_ALL=C.UTF-8 DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none ${ary_chroot_command[*]}] successful."
+    return 0
+
+  fi
+}
+
+#######################################
+# Execute a full shell script line inside the chroot via bash -c.
+# TODO: Supports interactive debug shell on error.
+# Globals:
+#   ERR_CHRT_COMMAND
+#   TERM
+#   DEBUG_INTERACTIVE (optional boolean)
+# Arguments:
+#   1: Target of the chroot environment
+#   2: Command string to execute inside a shell (quoted)
+#   3: Log level of command pipeline to be executed.
+# Returns:
+#   0: on success
+#   ERR_CHRT_COMMAND: on failure
+#######################################
+do_in_target_script() {
+  declare    var_chroot_target="$1"
+  declare    var_chroot_script="$2"
+  declare    var_log_level_on_error="${3:-emergency}"
+  declare -r var_default_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
+  if [[ -z "${var_chroot_script}" ]]; then
+
+    do_log "emergency" "file_only" "1080() Empty command passed to 'do_in_target_script()'."
+    return "${ERR_CHRT_COMMAND}"
+
+  fi
+
+  if ! chroot "${var_chroot_target}" /usr/bin/env -i \
+    HOME="/root" \
+    PATH="${var_default_path}" \
+    TERM="${TERM}" \
+    LANG="C.UTF-8" \
+    LC_ALL="C.UTF-8" \
+    DEBIAN_FRONTEND="noninteractive" \
+    APT_LISTCHANGES_FRONTEND="none" \
+    /bin/bash -c "${var_chroot_script}"
+
+  then
+
+    do_log "${var_log_level_on_error}" "file_only" "1080() Command: [chroot ${var_chroot_target} /usr/bin/env -i HOME=/root PATH=${var_default_path} TERM=${TERM} LANG=C.UTF-8 LC_ALL=C.UTF-8 DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none /bin/bash -c ${var_chroot_script}] failed."
+    return "${ERR_CHRT_COMMAND}"
+
+    # TODO: Test with Dialog Wrapper in interactive mode.
+    # TODO: Call clean screen first to terminate dialog wrapper !
+    #if [[ "${DEBUG_INTERACTIVE}" == "true" ]]; then
+    #  do_log "warning" "true" "Launching interactive debug shell in chroot: '${var_chroot_target}'."
+    #  chroot "${var_chroot_target}" /bin/bash -l
+    #fi
+
+  else
+
+    do_log "info" "file_only" "1080() Command: [chroot ${var_chroot_target} /usr/bin/env -i HOME=/root PATH=${var_default_path} TERM=${TERM} LANG=C.UTF-8 LC_ALL=C.UTF-8 DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none /bin/bash -c ${var_chroot_script}] successful."
+    return 0
+
+  fi
+}
+# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh