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Krzysztof kuhy Rudnicki
f6356d4725
Shell redirections are builtins, so no PATH stub can intercept `cat > /etc/modprobe.d/x.conf`. That left installer scripts unverifiable: stub cp/chmod/ln and the trace is nearly empty, don't and the run rewrites the live system. --prefix redirects HOME and every XDG_* base into a temp tree. XDG_DATA_HOME is exported explicitly, not left to default off HOME: install_leechblock.sh reads it directly and then runs `rsync -a --delete` at it. --bind-abs binds hardcoded absolutes via bwrap --unshare-user --uid 0, leaf directories only. uid 0 is load-bearing beyond permissions: common.sh's require_root does `exec sudo "$0"`, and under the sudo stub that truncated the whole run to one recorded call -- a trace that diffs clean against any split. Binding /etc wholesale was measured to shadow /etc/passwd, collapse $SUDO_USER to /home//, and mask a nested bind, so the scanner never emits it. The trace gains a manifest of every file written, with content hashes. That section is the point: with it, a dropped write in the fixture pair is a one-line diff; with it stripped, the two traces are identical, i.e. the old harness passed that broken split. Hashes normalize the prefix to @PREFIX@ because install_usage_monitoring.sh writes an unquoted heredoc that bakes $HOME into the artifact. Verified: ~/.config/systemd/user, ~/.local/bin, ~/.local/share and /etc/modprobe.d byte-identical before and after; usage-report units still 2. The three prior regressions are now committed fixtures rather than ad-hoc -- one was silently neutered mid-change when a trailing echo added for SC2034 became the function's last statement and turned exit 1 into exit 0. Stub generation moved to lib/ because --prefix pushed the harness to 252 lines, over the cap it exists to serve. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
33 lines
1.2 KiB
Bash
Executable File
33 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Regression fixture: the `set -e` function-tail abort.
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#
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# Reproduces the analyze_repo.sh bug. Eight `((MAP[x] > 0)) && HAS_Y=true` lines
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# were top-level statements, where a false `&&` merely leaves $? non-zero.
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# Wrapped into a function they become its RETURN VALUE, and the last one --
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# false for most inputs -- kills the script under set -e.
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#
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# Traced, this shows up as exit 1 with every later call missing from the trace.
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set -euo pipefail
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declare -A LANG_FILES=([python]=3 [java]=0)
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detect_languages() {
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local HAS_PYTHON=false HAS_JAVA=false
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((LANG_FILES[python] > 0)) && HAS_PYTHON=true
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# Read both flags BEFORE the failing tail, not after. An earlier revision
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# put `echo "java=$HAS_JAVA"` at the end to satisfy SC2034 -- which made
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# that echo the function's last statement, gave it exit 0, and silently
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# deleted the very bug this fixture exists to reproduce. The trace went
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# from exit 1 to exit 0 and the check passed while testing nothing. Keep
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# the bare conditional last.
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echo "python=$HAS_PYTHON java=$HAS_JAVA"
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# The tail. False, so the function returns 1 and set -e aborts the script.
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((LANG_FILES[java] > 0)) && HAS_JAVA=true
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}
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detect_languages
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echo "reached the line after detect_languages"
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systemctl status something
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