Integrate startup scripts in CMake install process with automatic init system detection by Copilot · Pull Request #136 · WEBcodeX1/http-1.2

Copilot · 2025-10-01T10:49:08Z

Overview

This PR implements automatic detection and installation of startup scripts during the CMake install process. The system now automatically detects the Linux init system type (systemd, OpenRC, or SysVinit) and installs the appropriate startup script without any user intervention.

Problem

Previously, users had to manually:

Identify their init system
Copy the correct startup script from scripts/startup/
Make the script executable (for init.d scripts)
Configure and enable the service

This manual process was error-prone and required knowledge of different init systems.

Solution

Added a CMake script (scripts/install_startup_script.cmake) that runs during make install and:

Automatically detects the init system by checking for characteristic directories and files:
- SystemD: /run/systemd/system or /usr/lib/systemd/system
- OpenRC: /etc/runlevels, /sbin/openrc-run, or /usr/sbin/openrc-run
- SysVinit: /etc/init.d (fallback)
Installs the appropriate script to the correct location:
- SystemD → /etc/systemd/system/falcon-as.service
- OpenRC → /etc/init.d/falcon-as
- SysVinit → /etc/init.d/falcon-as
Sets proper permissions (makes init.d scripts executable)
Displays clear instructions for enabling and starting the service

Changes

New Files

scripts/install_startup_script.cmake - Detection and installation logic

Modified Files

CMakeLists.txt - Added single line to invoke the install script
BUILD.md - Updated installation instructions with service management commands for all init systems
README.md - Updated Quick Start guide to show systemd service management

Example Output

After running sudo make install, users see:

-- ========================================
-- Installing startup script...
-- ========================================
-- Detected init system: systemd
-- Installing systemd startup script...
--   Source: .../scripts/startup/systemd/falcon-as.service
--   Destination: /etc/systemd/system/falcon-as.service
-- ✓ Startup script installed successfully
-- 
-- ========================================
-- To enable and start the service:
--   sudo systemctl daemon-reload
--   sudo systemctl enable falcon-as
--   sudo systemctl start falcon-as
-- 
-- To check service status:
--   sudo systemctl status falcon-as
-- ========================================

Supported Distributions

SystemD: Ubuntu 22.04+, Debian 12+, Fedora, CentOS 8+, RHEL 8+
OpenRC: Devuan, Gentoo, Alpine Linux
SysVinit: Debian ≤11, Ubuntu ≤14.04, older systems

Benefits

✅ Zero Configuration: Works automatically across different Linux distributions
✅ User-Friendly: Clear, system-specific instructions displayed after installation
✅ Robust: Graceful fallback and helpful error messages
✅ Backward Compatible: Manual startup method still works
✅ Minimal Changes: Surgical modifications to existing codebase

Testing

Comprehensive testing performed:

Init system detection verified for all three types
Path resolution and file existence validated
Script content and binary paths verified
Edge cases and error handling tested
Integration with CMake install process confirmed

Closes #[issue-number]

Original prompt

Please, integrate all startup scripts in the CMake install process. On installation check for the relevant linux type (which startup script should be chosen).

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clauspruefer · 2025-10-01T10:53:04Z

Create CMake script to detect Linux init system (systemd, OpenRC, or SysVinit)

Integrate init system detection in CMakeLists.txt

Install appropriate startup script based on detected init system

Test the installation process to verify correct script is installed

Update documentation if needed

Original prompt

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@copilot GO!

Co-authored-by: clauspruefer <17313789+clauspruefer@users.noreply.github.com>

clauspruefer

Looks goog, comprehensive tests following on v0.1.1rc.

Copilot

Pull Request Overview

This PR implements automatic startup script installation during the CMake install process, detecting the Linux init system type and installing the appropriate service configuration without user intervention.

Automatic init system detection (systemd, OpenRC, or SysVinit) based on filesystem characteristics
Installation of the correct startup script to appropriate system directories with proper permissions
Clear post-installation instructions displayed to users for service management

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
scripts/install_startup_script.cmake	New CMake script implementing init system detection and startup script installation logic
CMakeLists.txt	Added invocation of the startup script installation during make install
README.md	Updated Quick Start guide to include systemd service management commands
BUILD.md	Enhanced installation documentation with comprehensive service management instructions for all init systems

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Copilot · 2025-10-01T11:04:16Z

+
+# Detect OpenRC
+elseif((EXISTS "/etc/init.d" AND EXISTS "/etc/runlevels") OR EXISTS "/sbin/openrc-run" OR EXISTS "/usr/sbin/openrc-run")
+    set(INIT_SYSTEM "openrc")
+    set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/openrc/falcon-as")
+    set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")
+    message(STATUS "Detected init system: OpenRC")
+
+# Fallback to SysVinit
+elseif(EXISTS "/etc/init.d")
+    set(INIT_SYSTEM "sysvinit")
+    set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/init.d/falcon-as")
+    set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")
+    message(STATUS "Detected init system: SysVinit")
+


[nitpick] The OpenRC detection logic is complex and could benefit from being split into separate conditions for better readability. Consider breaking this into multiple elseif statements or storing intermediate boolean variables.

Suggested change

# Detect OpenRC

elseif((EXISTS "/etc/init.d" AND EXISTS "/etc/runlevels") OR EXISTS "/sbin/openrc-run" OR EXISTS "/usr/sbin/openrc-run")

set(INIT_SYSTEM "openrc")

set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/openrc/falcon-as")

set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")

message(STATUS "Detected init system: OpenRC")

# Fallback to SysVinit

elseif(EXISTS "/etc/init.d")

set(INIT_SYSTEM "sysvinit")

set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/init.d/falcon-as")

set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")

message(STATUS "Detected init system: SysVinit")

# Prepare OpenRC detection variables for readability

set(OPENRC_DIR_DETECTED FALSE)

set(OPENRC_BIN_DETECTED FALSE)

if(EXISTS "/etc/init.d" AND EXISTS "/etc/runlevels")

set(OPENRC_DIR_DETECTED TRUE)

endif()

if(EXISTS "/sbin/openrc-run" OR EXISTS "/usr/sbin/openrc-run")

set(OPENRC_BIN_DETECTED TRUE)

endif()

# Detect OpenRC

elseif(OPENRC_DIR_DETECTED OR OPENRC_BIN_DETECTED)

set(INIT_SYSTEM "openrc")

set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/openrc/falcon-as")

set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")

message(STATUS "Detected init system: OpenRC")

# Fallback to SysVinit

elseif(EXISTS "/etc/init.d")

set(INIT_SYSTEM "sysvinit")

set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/init.d/falcon-as")

set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")

message(STATUS "Detected init system: SysVinit")

Copilot · 2025-10-01T11:04:16Z

+    message(WARNING "Could not detect init system. Defaulting to SysVinit.")
+    set(INIT_SYSTEM "sysvinit")
+    set(INIT_SCRIPT_SRC "${CMAKE_CURRENT_LIST_DIR}/startup/init.d/falcon-as")
+    set(INIT_SCRIPT_DEST "/etc/init.d/falcon-as")


[nitpick] The fallback logic duplicates the SysVinit configuration from lines 24-26. Consider extracting this into a function or variable to avoid code duplication.

Copilot · 2025-10-01T11:04:16Z

+            RESULT_VARIABLE CHMOD_RESULT
+        )
+        if(CHMOD_RESULT EQUAL 0)
+            message(STATUS "✓ Made script executable")


The chmod failure case is not handled. Consider adding an else clause to warn the user if the chmod operation fails, as this could prevent the service from starting properly.

Suggested change

message(STATUS "✓ Made script executable")

message(STATUS "✓ Made script executable")

else()

message(WARNING "Failed to make script executable: ${INIT_SCRIPT_DEST}")

message(WARNING "You may need to run 'chmod +x ${INIT_SCRIPT_DEST}' with sudo/root privileges.")

Initial plan

73cd99f

Copilot AI assigned Copilot and clauspruefer Oct 1, 2025

Copilot started work on behalf of clauspruefer October 1, 2025 10:49 View session

clauspruefer changed the title ~~[WIP] Please, integrate all startup scripts in the CMake install process. On installation check for the relevant linux type (which startup script should be chosen).~~ [WIP] Integrate Startup Script(s) into CMake Install Process. Oct 1, 2025

Copilot AI and others added 2 commits October 1, 2025 10:54

Add CMake script to detect and install startup scripts

cc293ab

Co-authored-by: clauspruefer <17313789+clauspruefer@users.noreply.github.com>

Update documentation for automatic startup script installation

c6c0e16

Co-authored-by: clauspruefer <17313789+clauspruefer@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Integrate Startup Script(s) into CMake Install Process.~~ Integrate startup scripts in CMake install process with automatic init system detection Oct 1, 2025

Copilot AI requested a review from clauspruefer October 1, 2025 11:00

Copilot finished work on behalf of clauspruefer October 1, 2025 11:00

Copilot started work on behalf of clauspruefer October 1, 2025 11:01 View session

Copilot finished work on behalf of clauspruefer October 1, 2025 11:02

clauspruefer approved these changes Oct 1, 2025

View reviewed changes

clauspruefer marked this pull request as ready for review October 1, 2025 11:03

Copilot AI review requested due to automatic review settings October 1, 2025 11:03

clauspruefer merged commit 3bca726 into main Oct 1, 2025
5 checks passed

Copilot AI reviewed Oct 1, 2025

View reviewed changes

clauspruefer deleted the copilot/fix-31360ab9-9285-4bcd-92f7-c3ad2647502d branch October 1, 2025 13:47

clauspruefer added the installer Installer (CMakeLists.txt) label Oct 2, 2025

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Integrate startup scripts in CMake install process with automatic init system detection#136

Integrate startup scripts in CMake install process with automatic init system detection#136
clauspruefer merged 3 commits intomainfrom
copilot/fix-31360ab9-9285-4bcd-92f7-c3ad2647502d

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Overview

Problem

Solution

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New Files

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Example Output

Supported Distributions

Benefits

Testing

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Copilot AI commented Oct 1, 2025 •

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