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restic-automatic-backup-sch…/usr/lib/systemd/system/restic-check@.service
Erik Westrup 9760cd05ec Truly support custom PREFIX= install
* Before, doing `$ PREFIX=/usr/local make install` would install files to`/usr/local/usr/local..` which is wrong
* With this PR, files will be installed to the expected location e.g. `/usr/local/etc/restic`
* `Makefile` almost completely rewritten
   * As e.g. `default.env` would source `_global.env`, `default.env` must be edited to find the right location of `_global.env` depending on what `$PREFIX` was set to.
   * see documented build stages in the `Makefile` itself.
   *  Made sure that the rules are correct so that only modifed files are installed, not all at once unnecessarily like before.
* A sub-goal was that the [PKGBUILD](https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=restic-systemd-automatic-backup#n20) for Arch should not need to do any custom install configuration, to keep everything easier to maintain. `$ make install` should work out of the box for Arch.
* Additionally added the `-b` flag to `install(1)` that makes a backup of existing `etc/restic/*` files before installing a newer version.

Fixes #49
2022-02-03 20:52:00 +01:00

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[Unit]
Description=Check restic backup Backblaze B2 for errors
OnFailure=status-email-user@%n.service
Conflicts=restic-backup.service
Requires=nm-unmetered-connection.service
[Service]
Type=simple
Nice=10
# `systemd-cat` allows showing the restic output to the systemd journal
ExecStart=bash -c 'source $INSTALL_PREFIX/etc/restic/%I.env && $INSTALL_PREFIX/sbin/restic_check.sh | systemd-cat'