fn_registry/bash/functions/infra/rotate_backups.md at 2a3d7803474f1e8c2b0095d6d086ca92ab7c2dc9

Files

T

egutierrez 2a3d780347 feat(doctor): add fn doctor CLI + 14 functions for system management

Adds `fn doctor` read-only diagnostic command with subcommands artefacts,
services, sync, uses-functions, unused, and --json flag for agents.
Each subcommand wraps a registry function in functions/infra/.

New functions:
- artefact_doctor, services_status, pc_locations_drift,
  audit_uses_functions, find_unused_functions (Go diagnostics)
- backup_sqlite_db, rotate_backups, wait_for_http, wait_for_port,
  port_kill, tail_journal, pre_commit_hook_install (bash utilities)
- notify_telegram (Go HTTP)
- backup_all pipeline (tag launcher)

Plus prior session leftovers (scan_secrets_in_dirty, append_diary_entry,
git utilities, http_session_cookie_middleware, compile/full-git pipelines).

Fixes pc_locations_drift filepath.Join bug with absolute dir_path.
Documents fn doctor in CLAUDE.md, .claude/rules/fn_doctor.md (rule 23),
docs/architecture.md, CHANGELOG.md (2026-05-07), and diary entry.

First fn doctor uses-functions run found drift in 7/12 apps (deuda
para sincronizar app.md con imports reales).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-07 01:42:10 +02:00

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name, kind, lang, domain, version, purity, signature, description, tags, uses_functions, uses_types, returns, returns_optional, error_type, imports, params, output, tested, tests, test_file_path, file_path

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rotate_backups

function

bash

infra

1.0.0

impure

rotate_backups(dir: string, new_file: string, daily: int, weekly: int, monthly: int) -> string

Aplica retention policy estilo rsnapshot (daily/weekly/monthly) sobre un directorio de backups. Mueve el backup recien creado a daily.0, desplaza los anteriores y promueve a weekly/monthly al fin de periodo.

backup

rotate

retention

false

error_go_core

name	desc
dir	Directorio donde viven los backups. Se crea si no existe.

name	desc
new_file	Ruta al backup recien creado. Se mueve dentro de dir como daily.0.

name	desc
daily	Numero de slots diarios a conservar. Por defecto 7.

name	desc
weekly	Numero de slots semanales a conservar (promovidos cada domingo). Por defecto 4.

name	desc
monthly	Numero de slots mensuales a conservar (promovidos el dia 1 de cada mes). Por defecto 12.

Linea ROTATED daily=<N> weekly=<N> monthly=<N> dir=<dir> en stdout con el conteo de slots ocupados tras la rotacion. Exit code != 0 en error (1: new_file no existe, 2: dir no se puede crear, 3: argumento numerico invalido).

false

bash/functions/infra/rotate_backups.sh

Ejemplo

source bash/functions/infra/rotate_backups.sh

rotate_backups ~/backups/registry /tmp/registry-snap.db 7 4 12
# ROTATED daily=1 weekly=0 monthly=0 dir=/root/backups/registry

# Con key=value
rotate_backups ~/backups/pg /tmp/pg-dump.sql daily=7 weekly=4 monthly=12

Notas

Estilo rsnapshot: los slots se numeran desde 0 (mas reciente). El algoritmo aplica rotaciones en orden inverso para no sobreescribir:

Monthly (dia 1): copia weekly.<weekly-1> → monthly.0 antes de desplazar, borra el mas viejo.
Weekly (domingo): copia daily.<daily-1> → weekly.0 antes de desplazar, borra el mas viejo.
Daily (siempre): borra daily.<daily-1>, desplaza daily.i → daily.i+1, mueve new_file → daily.0.

La promocion weekly y monthly se ejecuta ANTES de la rotacion daily para que daily.<daily-1> y weekly.<weekly-1> aun existan cuando se necesitan. Sin dependencias externas — solo mv, rm, cp, mkdir, date.

Los slots pueden ser archivos o directorios (caller decide el formato del backup).

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