57 lines
2.1 KiB
Bash
Executable File
57 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# CASAN H1 context validator.
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# Before a sub-agent trusts pipeline-context.yaml, verify every referenced
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# artifact / trace file actually exists on disk, and (optionally) is not
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# staler than CASAN_CONTEXT_TTL_SECONDS relative to the context file itself.
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# Catches renamed/deleted/missing artifacts before they cause a silent bad read.
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#
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# Usage: context-validate.sh <pipeline-context.yaml>
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# Exit: 0 all good, 2 a referenced path is missing, 3 a referenced path is stale.
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CTX="${1:-}"
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if [[ -z "$CTX" || ! -f "$CTX" ]]; then
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echo "Usage: context-validate.sh <pipeline-context.yaml>" >&2
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exit 64
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fi
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CTX_DIR="$(cd "$(dirname "$CTX")" && pwd)"
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# Resolve paths relative to the repo root (3 levels up from this script).
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../../.." && pwd)"
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python3 - "$CTX" "$PROJECT_ROOT" "${CASAN_CONTEXT_TTL_SECONDS:-0}" <<'PY'
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import os, re, sys
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ctx, root, ttl = sys.argv[1], sys.argv[2], int(sys.argv[3])
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ctx_mtime = os.path.getmtime(ctx)
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missing, stale, checked = [], [], 0
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with open(ctx, encoding="utf-8") as fh:
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for line in fh:
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m = re.match(r"\s*(?:artifact|trace_file|path|data-model|spec|plan):\s*(\S+)", line)
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if not m:
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continue
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ref = m.group(1).strip().strip('"').strip("'")
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if ref in ("", "null", "<from", "pipeline-context>"):
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continue
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if "<" in ref or ref.endswith(">"):
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continue # unresolved template placeholder, not a concrete path
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cand = ref if os.path.isabs(ref) else os.path.join(root, ref)
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checked += 1
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if not os.path.exists(cand):
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missing.append(ref)
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continue
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if ttl > 0 and (ctx_mtime - os.path.getmtime(cand)) > ttl:
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stale.append(ref)
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if missing:
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sys.stderr.write("CONTEXT_INVALID missing=%d: %s\n" % (len(missing), ", ".join(missing)))
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raise SystemExit(2)
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if stale:
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sys.stderr.write("CONTEXT_STALE stale=%d: %s\n" % (len(stale), ", ".join(stale)))
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raise SystemExit(3)
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print(f"CONTEXT_VALID checked={checked} all referenced artifacts present")
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PY
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