Rebecca Turner
2a98ba8b97
The big ones here are `trim-trailing-whitespace` and `end-of-file-fixer` (which makes sure that every file ends with exactly one newline character). Change-Id: Idca73b640883188f068f9903e013cf0d82aa1123
1.1 KiB
Name
nix-store --optimise - reduce disk space usage
Synopsis
nix-store --optimise
Description
The operation --optimise reduces Nix store disk space usage by finding
identical files in the store and hard-linking them to each other. It
typically reduces the size of the store by something like 25-35%. Only
regular files and symlinks are hard-linked in this manner. Files are
considered identical when they have the same NAR archive serialisation:
that is, regular files must have the same contents and permission
(executable or non-executable), and symlinks must have the same
contents.
After completion, or when the command is interrupted, a report on the achieved savings is printed on standard error.
Use -vv or -vvv to get some progress indication.
{{#include ./opt-common.md}}
{{#include ../opt-common.md}}
{{#include ../env-common.md}}
Example
$ nix-store --optimise
hashing files in `/nix/store/qhqx7l2f1kmwihc9bnxs7rc159hsxnf3-gcc-4.1.1'
...
541838819 bytes (516.74 MiB) freed by hard-linking 54143 files;
there are 114486 files with equal contents out of 215894 files in total