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Remove non-functional macOS monitoring code that used native tools (sysctl, vm_stat, netstat, iostat). Now loadbars exits with an error when attempting local stats gathering on non-Linux systems. macOS can still be used as a client to monitor remote Linux servers via SSH.
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drawFrame() only cleared the window on layout changes, leaving remainder
pixels (from integer division winW/numBars) with stale content from the
double-buffered back buffer. Now clears every frame per SDL2 best practice.
Adds comprehensive SDL visual test harness using software renderer with
pixel spot-checking for CPU, memory, network bars, and the remainder bug.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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This commit adds full macOS support for loadbars, allowing it to run
natively on macOS for both localhost monitoring and remote Linux hosts.
Key changes:
- Embed both Linux and Darwin monitoring scripts in the binary
- Auto-detect localhost OS and use appropriate script
- Darwin script uses native macOS tools (sysctl, vm_stat, netstat, iostat)
- Remote hosts always use Linux script (assumes /proc filesystem)
- Automatic window activation on macOS using build tags
- No external helper scripts needed
The binary now works seamlessly on macOS:
- localhost monitoring uses macOS-specific commands
- Remote Linux hosts work via SSH with Linux script
- SDL window automatically comes to foreground on macOS
- Cross-platform build with single binary for all scenarios
Technical implementation:
- internal/collector/script.go: Embeds both scripts
- internal/collector/loadbars-remote-darwin.sh: macOS monitoring
- internal/collector/loadbars-remote.sh: Linux monitoring (copied from scripts/)
- internal/display/activate_darwin.go: macOS window activation
- internal/display/activate.go: No-op for other platforms
- Updated README.md with macOS installation instructions
- Added MACOS.md with detailed macOS documentation
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Co-authored-by: Cursor <cursoragent@cursor.com>
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Co-authored-by: Cursor <cursoragent@cursor.com>
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Co-authored-by: Cursor <cursoragent@cursor.com>
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- barWidth = winW/numBars (no -1), advance x by barW only
- Eliminates uncleared 1px columns that showed as vertical lines
Co-authored-by: Cursor <cursoragent@cursor.com>
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- README: add Hotkeys section (1,2,3,e,h,n,q,w,a,y,d,c,f,v,arrows)
- README: network interface and netlink config docs
- Display: default window width 1200; clear bar slots to fix CPU/mem/net mixing
- Display: numBars count only non-nil hosts (layout matches draw)
- Display: network bars (key 3), net interface choice and n=cycle
- Display: extended peak line (e), cpu/net avg keys (a,y,d,c) with feedback
- Config: default barwidth 1200; netint/netlink in --help
- Collector: parse_test Linux-style net stats
Co-authored-by: Cursor <cursoragent@cursor.com>
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- Clear renderer every frame so toggling cores off shows single bar again
- Add drawMemBar: RAM (dark grey/black) and Swap (grey/black) per host
- Remove redrawBg; always clear before draw
- README updates
Co-authored-by: Cursor <cursoragent@cursor.com>
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- Collector: always send all CPU lines so key 1 can toggle per-core view
- Display: use float division in drawCPUBar to avoid divide-by-zero panic
- Display: count actual CPU bars for bar width so all cores fit on screen
- Display: use local showMem/showNet for layout, add stdout feedback for 1/2/3
Co-authored-by: Cursor <cursoragent@cursor.com>
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- Module codeberg.org/snonux/loadbars, Go 1.25
- cmd/loadbars, internal/{app,config,collector,display,stats,constants,version}
- SDL display, shell script for remote (no Perl), config/cluster support
- Magefile: build, test, install, uninstall/deinstall
- NOTICE for go-sdl2 attribution (BSD-3-Clause)
- Default to localhost when no hosts given (no SSH)
- Remove loadbars-go binary name; build as loadbars
Co-authored-by: Cursor <cursoragent@cursor.com>
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Amp-Thread-ID: https://ampcode.com/threads/T-019c58b3-06fb-733d-8fc1-f268fe7f70d5
Co-authored-by: Amp <amp@ampcode.com>
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