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* Canonicalise timestamps in the Nix store to 1 (1970-01-01 00:00:01

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UTC) rather than 0 (00:00:00).  1 is a better choice because some
  programs use 0 as a special value.  For instance, the Template
  Toolkit uses a timestamp of 0 to denote the non-existence of a file,
  so it barfs on files in the Nix store (see
  template-toolkit-nix-store.patch in Nixpkgs).  Similarly, Maya 2008
  fails to load script directories with a timestamp of 0 and can't be
  patched because it's closed source.

  This will also shut up those "implausibly old time stamp" GNU tar
  warnings.
This commit is contained in:
Eelco Dolstra 2009-06-13 16:30:58 +00:00
parent f24cf5d303
commit 14bc3ce3d6
3 changed files with 4 additions and 4 deletions
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doc/manual/writing-nix-expressions.xml
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@ -1432,7 +1432,7 @@ command-line argument. See <xref linkend='sec-standard-environment'
inputs.</para></listitem>
<listitem><para>After the build, Nix sets the last-modified
timestamp on all files in the build result to 0 (00:00:00 1/1/1970
timestamp on all files in the build result to 1 (00:00:01 1/1/1970
UTC), sets the group to the default group, and sets the mode of the
file to 0444 or 0555 (i.e., read-only, with execute permission
enabled if the file was originally executable). Note that possible