git init

install.sh

@@ -0,0 +1,64 @@
+#!/bin/sh
+# Install the GitHub -> Gitea mirror sync on this machine.
+#
+# Safe to re-run: an existing mirror.env is never overwritten and the cron
+# entry is only added once.
+#
+#   TARGET=/opt/gitea-mirror ./install.sh   # override install directory
+#   CRON_TIME="0 3" ./install.sh            # override schedule (minute hour)
+set -eu
+
+SRC="$(dirname "$(readlink -f "$0")")"
+TARGET="${TARGET:-$HOME/gitea-github-mirror}"
+CRON_TIME="${CRON_TIME:-30 4}"
+
+say() { printf '%s\n' "$*"; }
+die() { printf 'error: %s\n' "$*" >&2; exit 1; }
+
+# --- prerequisites ---
+command -v python3 >/dev/null 2>&1 || die "python3 not found"
+python3 -c 'import json, urllib.request' 2>/dev/null \
+    || die "python3 is missing the standard library modules json/urllib"
+command -v crontab >/dev/null 2>&1 || die "crontab not found (install cron)"
+say "python3 $(python3 -c 'import platform; print(platform.python_version())') ok"
+
+# --- files ---
+mkdir -p "$TARGET"
+for f in sync_mirrors.py run_sync.sh README.md; do
+    [ -f "$SRC/$f" ] || die "missing source file: $f"
+    cp "$SRC/$f" "$TARGET/$f"
+    # Files may arrive from Windows; CRLF would break the shebang.
+    sed -i 's/\r$//' "$TARGET/$f"
+done
+chmod 700 "$TARGET/sync_mirrors.py" "$TARGET/run_sync.sh"
+say "installed scripts in $TARGET"
+
+if [ -f "$TARGET/mirror.env" ]; then
+    chmod 600 "$TARGET/mirror.env"
+    say "kept existing mirror.env"
+    CONFIGURED=1
+else
+    cp "$SRC/mirror.env.example" "$TARGET/mirror.env"
+    sed -i 's/\r$//' "$TARGET/mirror.env"
+    chmod 600 "$TARGET/mirror.env"
+    say "created $TARGET/mirror.env from the example"
+    CONFIGURED=0
+fi
+
+# --- cron ---
+CRON_LINE="$CRON_TIME * * * $TARGET/run_sync.sh"
+if crontab -l 2>/dev/null | grep -Fq "$TARGET/run_sync.sh"; then
+    say "cron entry already present"
+else
+    { crontab -l 2>/dev/null || true; printf '%s\n' "$CRON_LINE"; } | crontab -
+    say "cron entry added: $CRON_LINE"
+fi
+
+say ""
+if [ "$CONFIGURED" = "0" ]; then
+    say "Next: edit $TARGET/mirror.env (GITHUB_USER, GITEA_TOKEN, GITEA_OWNER),"
+    say "then preview with:"
+else
+    say "Next: verify with"
+fi
+say "  cd $TARGET && DRY_RUN=true python3 sync_mirrors.py"