Re: [Nix-dev] Suggestion: programs are *always* in the path
Hi, On 05/04/2017 05:00 PM, Jos van den Oever wrote: > This does not: > > NIX_AUTO_RUN=1 sqlite3 That's because sqlite3 is in multiple packages (sqlite and sqliteInteractive). NIX_AUTO_RUN only works if there is only one variant. Might be nice if it picked one according to some heuristic. -- Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
On Monday 01 May 2017 14:23:38 Eelco Dolstra wrote: > Hi, > > On 05/01/2017 02:11 PM, Jörg Thalheim wrote: > > Unfortunately the sqlite database feeding command-not-found is almost > > empty at the moment, > > > > so this command is useless. > > What channel are you on? For the minimal channel, the database contains only > a handful of packages, but the regular channel has a pretty extensive > database: > > $ sqlite3 /nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite > 'select count(*) from Programs' > 49351 I just tried this while not having sqlite3 installed. This works: NIX_AUTO_RUN=1 gphoto2 This does not: NIX_AUTO_RUN=1 sqlite3 Perhaps this feature only works when the package name is equal to the executable name. Or the issue is that there are two packages with the same executable name. sqlite> select * from programs where name = 'sqlite3'; sqlite3|i686-linux|sqlite sqlite3|i686-linux|sqlite-interactive sqlite3|x86_64-linux|sqlite sqlite3|x86_64-linux|sqlite-interactive sqlite> select * from programs where name = 'gphoto2'; gphoto2|i686-linux|gphoto2 gphoto2|x86_64-linux|gphoto2 Cheers, Jos signature.asc Description: This is a digitally signed message part. ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
> > $ export NIX_AUTO_RUN=1 Well, maybe refactoring would make sense and call it ON_MISSING_BUT_KNOWN_EXECUTABLE=run/install/ask/ask_run/ask_install/ask_once_run/ask_once_install where run => runs ask => asks whether to run or run and install ask_install => asks to install ask_run => asks to run or similar. For instance I'd prefer "ask once per app" eventually because I could have made a typo. Marc Weber ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
It would be nice if the database had the description of the package: It would be easy to build a QT-package-manager based on the info (or some other frontend). Greetings, Frank Op Mon, 1 May 2017 12:37:07 +0200 "regiv...@gmail.com" schreef: > I think it's really a very interesting feature! A user no longer > needs to install their programs: nix installs them in his place when > he needs them. This option could be highlighted in the NixOS > presentation. ___ > nix-dev mailing list > nix-dev@lists.science.uu.nl > https://mailman.science.uu.nl/mailman/listinfo/nix-dev ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
I believe https://github.com/NixOS/nixos-channel-scripts/issues/13 breaks the sqlite database, since only a few NARs have listings in the old format. Eelco Dolstra schrieb am Mo., 1. Mai 2017 um 14:23 Uhr: > Hi, > > On 05/01/2017 02:11 PM, Jörg Thalheim wrote: > > > Unfortunately the sqlite database feeding command-not-found is almost > empty at the moment, > > > > so this command is useless. > > What channel are you on? For the minimal channel, the database contains > only a > handful of packages, but the regular channel has a pretty extensive > database: > > $ sqlite3 > /nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite > 'select count(*) from Programs' > 49351 > > -- > Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ > ___ > nix-dev mailing list > nix-dev@lists.science.uu.nl > https://mailman.science.uu.nl/mailman/listinfo/nix-dev > ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
Hi, On 05/01/2017 02:11 PM, Jörg Thalheim wrote: > Unfortunately the sqlite database feeding command-not-found is almost empty > at the moment, > > so this command is useless. What channel are you on? For the minimal channel, the database contains only a handful of packages, but the regular channel has a pretty extensive database: $ sqlite3 /nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite 'select count(*) from Programs' 49351 -- Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
Unfortunately the sqlite database feeding command-not-found is almost empty at the moment, so this command is useless. On 2017-05-01 12:05, Eelco Dolstra wrote: > Hi, > > On 05/01/2017 11:55 AM, regiv...@gmail.com wrote: > >> If you enter a command, you want to run it. >> >> If the corresponding program is not installed, the command is a symbolic >> link to >> a script that says: >> >> _ download the program and its dependencies, >> _ install it, >> _ run it. > On NixOS, you can already do something like that by setting $NIX_AUTO_RUN to > 1. > > E.g. > > $ export NIX_AUTO_RUN=1 > > $ gphoto2 --version > these paths will be fetched (1.44 MiB download, 8.20 MiB unpacked): > /nix/store/3a7xm6l9ysvf6igk9g9nsc0w9kxpscb0-libgphoto2-2.5.12 > /nix/store/7fhspkpiylqi4lifqn6k2lvjhkw1llsv-gphoto2-2.5.8 > ... > gphoto2 2.5.8 > > This only works if the programs database > /nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite exists. > Also > it doesn't work if a command has multiple alternatives. > ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
For cautious users, there might be the message: "dc is not installed. Do you want to install it? Yes / no " But in practice, typos are rarely problematic. ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
I think it's really a very interesting feature! A user no longer needs to install their programs: nix installs them in his place when he needs them. This option could be highlighted in the NixOS presentation. ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
Hello, Thus quoth regiv...@gmail.com at 09:55 on Mon, May 01 2017: > > If you enter a command, you want to run it. > > If the corresponding program is not installed, the command is a symbolic > link to a script that says: > > _ download the program and its dependencies, > _ install it, > _ run it. > > The speed of installation and execution is optimal because the script > already knows what to download and install. What about executables provided by multiple packages? What about typos? I sometimes type dc (calculator) instead of cd, but I don't have nor want to have dc on my machine. What about a script myScript I wrote which happens to have the same name as an executable provided by a package, and which I erroneously tried to run using myScript directly, instead of typing ./myScript? Note that typing commands in a local command line is a use case quite different from typing URLs in a browser: the commands are way shorter and the risk of confusion is much higher. -- Sergiu signature.asc Description: PGP signature ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
On 1 May 2017 at 12:05, Eelco Dolstra wrote: > Hi, > > On 05/01/2017 11:55 AM, regiv...@gmail.com wrote: > >> If you enter a command, you want to run it. >> >> If the corresponding program is not installed, the command is a symbolic >> link to >> a script that says: >> >> _ download the program and its dependencies, >> _ install it, >> _ run it. > > On NixOS, you can already do something like that by setting $NIX_AUTO_RUN to > 1. > > E.g. > > $ export NIX_AUTO_RUN=1 Follow up: NIX_AUTO_RUN=1 means the program will be run via nix-shell. (The grabage collector may remove it on the next GC run.) NIX_AUTO_INSTALL=1 means the program will be installed with nix-env and then run from your normal shell. (It won't be automatically garbage collected.) Best regards, Bjørn Forsman ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Suggestion: programs are *always* in the path
Hi, On 05/01/2017 11:55 AM, regiv...@gmail.com wrote: > If you enter a command, you want to run it. > > If the corresponding program is not installed, the command is a symbolic link > to > a script that says: > > _ download the program and its dependencies, > _ install it, > _ run it. On NixOS, you can already do something like that by setting $NIX_AUTO_RUN to 1. E.g. $ export NIX_AUTO_RUN=1 $ gphoto2 --version these paths will be fetched (1.44 MiB download, 8.20 MiB unpacked): /nix/store/3a7xm6l9ysvf6igk9g9nsc0w9kxpscb0-libgphoto2-2.5.12 /nix/store/7fhspkpiylqi4lifqn6k2lvjhkw1llsv-gphoto2-2.5.8 ... gphoto2 2.5.8 This only works if the programs database /nix/var/nix/profiles/per-user/root/channels/nixos/programs.sqlite exists. Also it doesn't work if a command has multiple alternatives. -- Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
[Nix-dev] Suggestion: programs are *always* in the path
Hello! If you enter a command, you want to run it. If the corresponding program is not installed, the command is a symbolic link to a script that says: _ download the program and its dependencies, _ install it, _ run it. The speed of installation and execution is optimal because the script already knows what to download and install. This comes close to how web applications are downloaded and executed. To run a web application, you enter its URL in the address bar and the browser automatically takes care of downloading it, installing it in the cache and running it. This system should also exist for local programs. ___ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
