[systemd-bugs] [Bug 65733] New: RFE: Appending to unit file directives

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65733

          Priority: medium
            Bug ID: 65733
          Assignee: systemd-bugs at lists.freedesktop.org
           Summary: RFE: Appending to unit file directives
        QA Contact: systemd-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: michael+freedesktop at stapelberg.de
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: general
           Product: systemd

With the .include mechanism, I can overwrite or delete the contents of a
directive, e.g.:

.include /lib/systemd/system/codesearch.service
ExecStart=/usr/bin/codesearch -verbose

What I cannot do currently is extending the old value, e.g.:

.include /lib/systemd/system/codesearch.service
ExecStart=$ExecStart -verbose

This would be helpful (and at least two other people on #systemd also wished
for it when I asked).

Lennart (et al), is that something you’d accept? If so, how precisely should it
work? I.e. how should one refer to the old value? A format string value? A
pseudo-variable? A prefix of some sort?

Let me know and I’ll be happy to provide a patch.

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