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Your Name 95917607cf fix: infinite loop in pos completion walk-up caused CPU hang on TAB

_pos_complete_tool walks up the key looking for a tool that declares
POS_FLAGS/POS_SUBCMDS; "${k%-*}" on a dash-free key returns it
unchanged, so once the walk hit a bare category (e.g. 'system' from
system-nfs-server) the while loop spun at 100% CPU. Any TAB at an
argument position of a tool without flags/subcmds froze the shell.
Stop the walk-up when no dash remains.

Also refresh AGENTS.md quick facts and regenerate doc file table
(completions/pos.bash 278->279 lines).

2026-08-09 09:24:50 +00:00

3.4 KiB

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Linux_post_install — Agent Instructions

Personal bootstrap & homelab toolkit for Debian/Ubuntu (Bash). install.sh bootstraps a machine; bin/pos is the unified CLI.

External File Loading

CRITICAL: real guidance lives in DOC/. When you encounter a reference below, use your Read tool to load it on a need-to-know basis — do NOT preemptively load all of them. Once loaded, treat the content as mandatory instructions.

@DOC/AGENT_Context_Project.md — project overview, directory structure, pos dispatch table, "How to modify" table. Read FIRST for any non-trivial task. It opens with a Document Map (auto-generated line ranges for every section) — use it to jump straight to the relevant section.
@DOC/DEV.md — conventions, verification, and the "Adding a new Feature/App/Tool" checklists. Read before creating or changing code/docs.
@DOC/POS.md — pos CLI reference (dispatcher + every command). Read when working on bin/pos* scripts or their docs.
@DOC/README.md — index of all docs. Read to find the right doc.
@DOC/HOWTO.md — hands-on per-category guides (network, docker, media, system, ssh, usb, communication, entertainment). Read when a task is about using pos day-to-day rather than extending it.

Quick facts

Tool model: bin/pos-<category>-<command> (one category-less exception: pos-config). bin/pos dispatches by longest-prefix arg matching. New tools are auto-discovered but must be executable (100755) and carry a # POS: <cat> <cmd> — <desc> header right after the shebang; # POS_FLAGS: / # POS_SUBCMDS: / # POS_CONFIG: headers feed tab-completion and the pos config scope registry. A missing # POS: header hard-fails make gen.
Generated code: blocks between GEN:START/GEN:END markers in DOC/AGENT_Context_Project.md (tree, dispatch, selfcontained, filetable, docmap) and completions/pos.bash (flags, subcmds, config scopes) are make gen output — never hand-edit them. After touching bin/pos-*, run make gen then make check (bash -n + exec-bit check + doc-sync gate + dispatch smoke; definition of done). Hand-maintained, not gen-checked: DOC/POS.md, the line-count rows above the filetable marker (e.g. lib/common.sh), bin/pos usage() EXAMPLES, root README.
Stdin gotcha: any tool that reads stdin must be added to INTERACTIVE_CMDS in bin/pos — otherwise the logging tee pipe hangs on (or swallows) the prompt.
Deps: apt packages → PACKAGES array in preinstall.sh; non-apt/manual installers (e.g. usbsrv) → command -v <bin> || err "…" guard inside the tool, never in PACKAGES.
Secrets: never commit keys/tokens. config/authorized_keys and config/rclone.conf are gitignored; runtime tool config is ~/.config/linux_post_install/<tool>.env (chmod 600, env-var precedence). Mask tokens in config output.
entertainment plugins: standalone scripts in entertainment/ that must NOT source lib/common.sh — stdout is the message that gets sent to Telegram (helper chatter would leak into it). Markers: # POS_PLUGIN: <name> + # POS_KEYS: declarations.
Conventions: set -euo pipefail, -h|--help via case, idempotent writes, use run/spawn helpers (respect $DRY_RUN), make hook installs the opt-in pre-commit gate.
Maintain AGENT_TODO.md (Now / Next / Later / Done): when you finish a task, move it to Done (dated) in the same commit.

3.4 KiB Raw Blame History

Linux_post_install — Agent Instructions

External File Loading

Quick facts

3.4 KiB

Raw Blame History