muse-git-backup.sh
bash
sha256:74edab09b21c5878acf84e50d3a5e64c20987ec6da01cb9a1a85c1a68be94ed3
chore: add muse-git-backup.sh — tested wrapper for the git-…
Sonnet 5
patch
13 days ago
| 1 | #!/usr/bin/env bash |
| 2 | # muse-git-backup.sh — git-bridge backup mirror for muse/musehub -> GitHub |
| 3 | # See MuseHub staging issue #127 for full context. |
| 4 | # |
| 5 | # Usage: |
| 6 | # ./muse-git-backup.sh preflight |
| 7 | # ./muse-git-backup.sh replay-muse |
| 8 | # ./muse-git-backup.sh replay-musehub |
| 9 | # ./muse-git-backup.sh github-push |
| 10 | # ./muse-git-backup.sh verify |
| 11 | # ./muse-git-backup.sh incremental-muse |
| 12 | # ./muse-git-backup.sh incremental-musehub |
| 13 | # |
| 14 | # Each subcommand is independent and safe to re-run. This script never |
| 15 | # touches ~/ecosystem/muse or ~/ecosystem/musehub — every operation targets |
| 16 | # the copies under /Users/gabriel/dev/copies 2/ and brand-new directories/ |
| 17 | # GitHub repos this script creates fresh. Run as ./muse-git-backup.sh <cmd>, |
| 18 | # never sourced into your interactive shell — that's what makes `exit` |
| 19 | # inside this script safe (it only ends the script's own process). |
| 20 | |
| 21 | set -euo pipefail |
| 22 | |
| 23 | MUSE_COPY="/Users/gabriel/dev/copies 2/muse 03" |
| 24 | MUSEHUB_COPY="/Users/gabriel/dev/copies 2/musehub 03" |
| 25 | MUSE_GIT_BACKUP="/Users/gabriel/dev/copies 2/muse-git-backup" |
| 26 | MUSEHUB_GIT_BACKUP="/Users/gabriel/dev/copies 2/musehub-git-backup" |
| 27 | GH_MUSE_REPO="gabriel/muse-backup" |
| 28 | GH_MUSEHUB_REPO="gabriel/musehub-backup" |
| 29 | |
| 30 | guard() { |
| 31 | case "$1" in |
| 32 | *ecosystem*) echo "❌ REFUSED: path contains 'ecosystem': $1"; exit 1 ;; |
| 33 | esac |
| 34 | } |
| 35 | |
| 36 | cmd_preflight() { |
| 37 | test -d "$MUSE_COPY/.muse" && echo "muse copy: OK" || { echo "muse copy: MISSING .muse/ — STOP"; exit 1; } |
| 38 | test -d "$MUSEHUB_COPY/.muse" && echo "musehub copy: OK" || { echo "musehub copy: MISSING .muse/ — STOP"; exit 1; } |
| 39 | |
| 40 | if [ -L "$MUSE_COPY" ]; then echo "STOP — muse copy is a symlink"; exit 1; fi |
| 41 | if [ -L "$MUSEHUB_COPY" ]; then echo "STOP — musehub copy is a symlink"; exit 1; fi |
| 42 | echo "muse copy: real directory, not a symlink" |
| 43 | echo "musehub copy: real directory, not a symlink" |
| 44 | |
| 45 | echo "muse commit count:" |
| 46 | muse -C "$MUSE_COPY" rev-list --count HEAD --json |
| 47 | echo "musehub commit count:" |
| 48 | muse -C "$MUSEHUB_COPY" rev-list --count HEAD --json |
| 49 | } |
| 50 | |
| 51 | _replay_full_history() { |
| 52 | local muse_copy="$1" git_backup="$2" label="$3" |
| 53 | guard "$git_backup" |
| 54 | |
| 55 | mkdir -p "$git_backup" |
| 56 | if [ ! -d "$git_backup/.git" ]; then |
| 57 | git -C "$git_backup" init -q |
| 58 | git -C "$git_backup" config user.email "[email protected]" |
| 59 | git -C "$git_backup" config user.name "gabriel" |
| 60 | git -C "$git_backup" commit --allow-empty -qm "init ($label git-bridge backup mirror)" |
| 61 | fi |
| 62 | |
| 63 | local commits total n |
| 64 | commits=$(muse -C "$muse_copy" rev-list --reverse HEAD --json | python3 -c "import sys,json; print('\n'.join(json.load(sys.stdin)['commit_ids']))") |
| 65 | if [ -n "${LIMIT:-}" ]; then |
| 66 | commits=$(echo "$commits" | head -n "$LIMIT") |
| 67 | echo "LIMIT=$LIMIT set — replaying only the first $LIMIT commits (dry run)" |
| 68 | echo "⚠️ Before running the full replay, delete $git_backup — replay always" |
| 69 | echo " starts from commit 1, so re-running without cleanup duplicates these." |
| 70 | fi |
| 71 | total=$(echo "$commits" | wc -l | tr -d ' ') |
| 72 | n=0 |
| 73 | while IFS= read -r cid; do |
| 74 | n=$((n + 1)) |
| 75 | echo "[$n/$total] exporting $cid" |
| 76 | (cd "$muse_copy" && muse bridge git-export \ |
| 77 | --muse-ref "$cid" \ |
| 78 | --git-dir "$git_backup" \ |
| 79 | --git-branch muse-mirror \ |
| 80 | --no-push \ |
| 81 | --allow-empty \ |
| 82 | --json) |
| 83 | done <<< "$commits" |
| 84 | |
| 85 | echo "git history length:" |
| 86 | git -C "$git_backup" rev-list --count muse-mirror |
| 87 | } |
| 88 | |
| 89 | cmd_replay_muse() { |
| 90 | _replay_full_history "$MUSE_COPY" "$MUSE_GIT_BACKUP" "muse" |
| 91 | } |
| 92 | |
| 93 | cmd_replay_musehub() { |
| 94 | _replay_full_history "$MUSEHUB_COPY" "$MUSEHUB_GIT_BACKUP" "musehub" |
| 95 | } |
| 96 | |
| 97 | cmd_github_push() { |
| 98 | gh auth status || { echo "Run 'gh auth login' first"; exit 1; } |
| 99 | |
| 100 | gh repo view "$GH_MUSE_REPO" >/dev/null 2>&1 || gh repo create "$GH_MUSE_REPO" --private --description "Git-bridge backup mirror of the muse Muse repo" |
| 101 | gh repo view "$GH_MUSEHUB_REPO" >/dev/null 2>&1 || gh repo create "$GH_MUSEHUB_REPO" --private --description "Git-bridge backup mirror of the musehub Muse repo" |
| 102 | |
| 103 | git -C "$MUSE_GIT_BACKUP" remote get-url origin >/dev/null 2>&1 || git -C "$MUSE_GIT_BACKUP" remote add origin "[email protected]:$GH_MUSE_REPO.git" |
| 104 | git -C "$MUSEHUB_GIT_BACKUP" remote get-url origin >/dev/null 2>&1 || git -C "$MUSEHUB_GIT_BACKUP" remote add origin "[email protected]:$GH_MUSEHUB_REPO.git" |
| 105 | |
| 106 | git -C "$MUSE_GIT_BACKUP" push -u origin muse-mirror |
| 107 | git -C "$MUSEHUB_GIT_BACKUP" push -u origin muse-mirror |
| 108 | } |
| 109 | |
| 110 | cmd_verify() { |
| 111 | rm -rf /tmp/verify-muse-backup |
| 112 | git clone "[email protected]:$GH_MUSE_REPO.git" /tmp/verify-muse-backup |
| 113 | git -C /tmp/verify-muse-backup checkout muse-mirror |
| 114 | echo "--- muse diff (expect no output) ---" |
| 115 | diff -rq --exclude=.git --exclude=.muse "$MUSE_COPY" /tmp/verify-muse-backup || true |
| 116 | |
| 117 | rm -rf /tmp/verify-musehub-backup |
| 118 | git clone "[email protected]:$GH_MUSEHUB_REPO.git" /tmp/verify-musehub-backup |
| 119 | git -C /tmp/verify-musehub-backup checkout muse-mirror |
| 120 | echo "--- musehub diff (expect no output) ---" |
| 121 | diff -rq --exclude=.git --exclude=.muse "$MUSEHUB_COPY" /tmp/verify-musehub-backup || true |
| 122 | } |
| 123 | |
| 124 | _incremental() { |
| 125 | local muse_copy="$1" git_backup="$2" |
| 126 | local last_bridged new_commits |
| 127 | |
| 128 | last_bridged=$(python3 -c " |
| 129 | import tomllib |
| 130 | with open('$muse_copy/.muse/git-bridge.toml', 'rb') as f: |
| 131 | state = tomllib.load(f) |
| 132 | print(state['last_export']['muse_commit_id']) |
| 133 | ") |
| 134 | echo "Last bridged commit: $last_bridged" |
| 135 | |
| 136 | new_commits=$(muse -C "$muse_copy" rev-list "$last_bridged..HEAD" --reverse --json | python3 -c "import sys,json; print('\n'.join(json.load(sys.stdin)['commit_ids']))") |
| 137 | |
| 138 | if [ -z "$new_commits" ]; then |
| 139 | echo "Nothing new since the last backup — done." |
| 140 | return 0 |
| 141 | fi |
| 142 | |
| 143 | while IFS= read -r cid; do |
| 144 | echo "exporting $cid" |
| 145 | (cd "$muse_copy" && muse bridge git-export \ |
| 146 | --muse-ref "$cid" \ |
| 147 | --git-dir "$git_backup" \ |
| 148 | --git-branch muse-mirror \ |
| 149 | --no-push \ |
| 150 | --allow-empty \ |
| 151 | --json) |
| 152 | done <<< "$new_commits" |
| 153 | |
| 154 | git -C "$git_backup" push origin muse-mirror |
| 155 | } |
| 156 | |
| 157 | cmd_incremental_muse() { |
| 158 | _incremental "$MUSE_COPY" "$MUSE_GIT_BACKUP" |
| 159 | } |
| 160 | |
| 161 | cmd_incremental_musehub() { |
| 162 | _incremental "$MUSEHUB_COPY" "$MUSEHUB_GIT_BACKUP" |
| 163 | } |
| 164 | |
| 165 | SUBCOMMAND="${1:-}" |
| 166 | LIMIT="" |
| 167 | if [ "${2:-}" = "--limit" ]; then |
| 168 | LIMIT="${3:?--limit requires a number}" |
| 169 | fi |
| 170 | |
| 171 | case "$SUBCOMMAND" in |
| 172 | preflight) cmd_preflight ;; |
| 173 | replay-muse) cmd_replay_muse ;; |
| 174 | replay-musehub) cmd_replay_musehub ;; |
| 175 | github-push) cmd_github_push ;; |
| 176 | verify) cmd_verify ;; |
| 177 | incremental-muse) cmd_incremental_muse ;; |
| 178 | incremental-musehub) cmd_incremental_musehub ;; |
| 179 | *) |
| 180 | echo "Usage: $0 {preflight|replay-muse|replay-musehub|github-push|verify|incremental-muse|incremental-musehub} [--limit N]" |
| 181 | exit 1 |
| 182 | ;; |
| 183 | esac |
File History
1 commit
sha256:74edab09b21c5878acf84e50d3a5e64c20987ec6da01cb9a1a85c1a68be94ed3
chore: add muse-git-backup.sh — tested wrapper for the git-…
Sonnet 5
patch
13 days ago