Nix/corepkgs/config.nix.in

# FIXME: remove this file?
let
  fromEnv = var: def:
    let val = builtins.getEnv var; in
    if val != "" then val else def;
in rec {
  shell = "@bash@";
  coreutils = "@coreutils@";
  bzip2 = "@bzip2@";
  gzip = "@gzip@";
  xz = "@xz@";
  tar = "@tar@";
  tarFlags = "@tarFlags@";
  tr = "@tr@";
  nixBinDir = fromEnv "NIX_BIN_DIR" "@bindir@";
  nixPrefix = "@prefix@";
  nixLibexecDir = fromEnv "NIX_LIBEXEC_DIR" "@libexecdir@";
  nixLocalstateDir = "@localstatedir@";
  nixSysconfDir = "@sysconfdir@";
  nixStoreDir = fromEnv "NIX_STORE_DIR" "@storedir@";
}
Make <nix/unpack-channel.nix> a builtin builder This was the last function using a shell script, so this allows us to get rid of tar, coreutils, bash etc. 2019-03-27 23:40:35 +01:00			`# FIXME: remove this file?`
* Forgot to add. 2012-01-03 10:19:40 +01:00			`let`
			`fromEnv = var: def:`
			`let val = builtins.getEnv var; in`
			`if val != "" then val else def;`
Don't rely on __noChroot for corepkgs This doesn't work anymore if the "strict" chroot mode is enabled. Instead, add Nix's store path as a dependency. This ensures that its closure is present in the chroot. 2015-03-24 11:15:45 +01:00			`in rec {`
Add support for ‘make installcheck’ 2013-11-25 18:47:03 +01:00			`shell = "@bash@";`
* Forgot to add. 2012-01-03 10:19:40 +01:00			`coreutils = "@coreutils@";`
Use XZ compression in binary caches XZ compresses significantly better than bzip2. Here are the compression ratios and execution times (using 4 cores in parallel) on my /var/run/current-system (3.1 GiB): bzip2: total compressed size 849.56 MiB, 30.8% [2m08] xz -6: total compressed size 641.84 MiB, 23.4% [6m53] xz -7: total compressed size 621.82 MiB, 22.6% [7m19] xz -8: total compressed size 599.33 MiB, 21.8% [7m18] xz -9: total compressed size 588.18 MiB, 21.4% [7m40] Note that compression takes much longer. More importantly, however, decompression is much faster: bzip2: 1m47.274s xz -6: 0m55.446s xz -7: 0m54.119s xz -8: 0m52.388s xz -9: 0m51.842s The only downside to using -9 is that decompression takes a fair amount (~65 MB) of memory. 2012-06-29 20:26:31 +02:00			`bzip2 = "@bzip2@";`
Add gzip support for channel unpacking 2013-05-14 15:10:14 +02:00			`gzip = "@gzip@";`
Use XZ compression in binary caches XZ compresses significantly better than bzip2. Here are the compression ratios and execution times (using 4 cores in parallel) on my /var/run/current-system (3.1 GiB): bzip2: total compressed size 849.56 MiB, 30.8% [2m08] xz -6: total compressed size 641.84 MiB, 23.4% [6m53] xz -7: total compressed size 621.82 MiB, 22.6% [7m19] xz -8: total compressed size 599.33 MiB, 21.8% [7m18] xz -9: total compressed size 588.18 MiB, 21.4% [7m40] Note that compression takes much longer. More importantly, however, decompression is much faster: bzip2: 1m47.274s xz -6: 0m55.446s xz -7: 0m54.119s xz -8: 0m52.388s xz -9: 0m51.842s The only downside to using -9 is that decompression takes a fair amount (~65 MB) of memory. 2012-06-29 20:26:31 +02:00			`xz = "@xz@";`
* Forgot to add. 2012-01-03 10:19:40 +01:00			`tar = "@tar@";`
Use a GNU tar flag to shut up warnings about implausibly old timestamp 2012-08-01 22:42:51 +02:00			`tarFlags = "@tarFlags@";`
* Forgot to add. 2012-01-03 10:19:40 +01:00			`tr = "@tr@";`
			`nixBinDir = fromEnv "NIX_BIN_DIR" "@bindir@";`
Don't rely on __noChroot for corepkgs This doesn't work anymore if the "strict" chroot mode is enabled. Instead, add Nix's store path as a dependency. This ensures that its closure is present in the chroot. 2015-03-24 11:15:45 +01:00			`nixPrefix = "@prefix@";`
buildenv: perl -> c++ 2016-08-11 13:58:33 +02:00			`nixLibexecDir = fromEnv "NIX_LIBEXEC_DIR" "@libexecdir@";`
Add nix-perl package for the perl bindings 2016-08-12 15:44:01 +02:00			`nixLocalstateDir = "@localstatedir@";`
			`nixSysconfDir = "@sysconfdir@";`
			`nixStoreDir = fromEnv "NIX_STORE_DIR" "@storedir@";`
* Forgot to add. 2012-01-03 10:19:40 +01:00			`}`