Hello Ludovic, ludo@gnu.org (Ludovic Courtès) writes: > Oleg Pykhalov skribis: > >> ‘--remote-log-file’ allows to get a URL for a build log file on a substitute >> server regardless is it built locally. ‘--log-file’ returns always local >> build log file. > > What did you think of having ‘--log-file’ transparently fall back to > searching for log files on substitute servers? Sorry, I don't understand the question. Does the “fall back” mean the behavior before a patch? > I find it handy, but also wondered if it might surprise users that such > a trivially-looking option connects to external servers. I thought > about having it print something when it does so. Would address your > concerns? Do you mean always connect to the external server and print a URL for a log file in addition to path of local log file? I don't think mixing those in one output is good, because for example you cannot do like: --8<---------------cut here---------------start------------->8--- diff -u <(guix build --log-file hello) <(guix build --remote-log-file hello) --8<---------------cut here---------------end--------------->8--- As a better approach in addition to ‘--no-substitutes’, maybe we could implement ‘--only-substitutes’ (as I remember Nix has it)? Such flag will return a remote log file and will avoid building packages locally. Oleg.