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<envar> -> <literal>
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33 changed files with 111 additions and 111 deletions
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@ -184,9 +184,9 @@ irreversible.</para></warning>
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<listitem><para>Nix now works behind an HTTP proxy server; just set
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the standard environment variables <envar>http_proxy</envar>,
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<envar>https_proxy</envar>, <envar>ftp_proxy</envar> or
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<envar>all_proxy</envar> appropriately. Functions such as
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the standard environment variables <literal>http_proxy</literal>,
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<literal>https_proxy</literal>, <literal>ftp_proxy</literal> or
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<literal>all_proxy</literal> appropriately. Functions such as
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<function>fetchurl</function> in Nixpkgs also respect these
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variables.</para></listitem>
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@ -49,7 +49,7 @@ $ rm __db* log.* derivers references referrers reserved validpaths DB_CONFIG</sc
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filesystem. For instance, you can speed up an installation by
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mounting some remote Nix store that already has the packages in
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question via NFS or <literal>sshfs</literal>. The environment
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variable <envar>NIX_OTHER_STORES</envar> specifies the locations of
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variable <literal>NIX_OTHER_STORES</literal> specifies the locations of
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the remote Nix directories,
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e.g. <literal>/mnt/remote-fs/nix</literal>.</para></listitem>
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@ -156,7 +156,7 @@ the following paths will be downloaded/copied (30.02 MiB):
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<listitem><para><command>nix-prefetch-url</command> now supports
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<literal>mirror://</literal> URLs, provided that the environment
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variable <envar>NIXPKGS_ALL</envar> points at a Nixpkgs
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variable <literal>NIXPKGS_ALL</literal> points at a Nixpkgs
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tree.</para></listitem>
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<listitem><para>Removed the commands
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@ -30,7 +30,7 @@
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<replaceable>N</replaceable></option> as well as a configuration
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setting <varname>build-cores =
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<replaceable>N</replaceable></varname> that causes the
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environment variable <envar>NIX_BUILD_CORES</envar> to be set to
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environment variable <literal>NIX_BUILD_CORES</literal> to be set to
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<replaceable>N</replaceable> when the builder is invoked. The
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builder can use this at its discretion to perform a parallel
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build, e.g., by calling <command>make -j
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@ -29,7 +29,7 @@ previous release. Here are the most significant:</para>
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<listitem>
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<para>Nix now has an search path for expressions. The search path
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is set using the environment variable <envar>NIX_PATH</envar> and
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is set using the environment variable <literal>NIX_PATH</literal> and
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the <option>-I</option> command line option. In Nix expressions,
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paths between angle brackets are used to specify files that must
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be looked up in the search path. For instance, the expression
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@ -116,7 +116,7 @@ $ mount -o remount,ro,bind /nix/store
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<listitem>
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<para>Basic Nix expression evaluation profiling: setting the
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environment variable <envar>NIX_COUNT_CALLS</envar> to
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environment variable <literal>NIX_COUNT_CALLS</literal> to
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<literal>1</literal> will cause Nix to print how many times each
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primop or function was executed.</para>
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</listitem>
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@ -33,7 +33,7 @@ features:</para>
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<listitem>
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<para><command>nix-shell</command> now sets the shell prompt
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(<envar>PS1</envar>) to ensure that Nix shells are distinguishable
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(<literal>PS1</literal>) to ensure that Nix shells are distinguishable
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from your regular shells.</para>
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</listitem>
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@ -105,7 +105,7 @@ $ nix-store -l $(which xterm)
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some terminals show them anyway.</para></listitem>
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<listitem><para>Various commands now automatically pipe their output
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into the pager as specified by the <envar>PAGER</envar> environment
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into the pager as specified by the <literal>PAGER</literal> environment
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variable.</para></listitem>
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<listitem><para>Several improvements to reduce memory consumption in
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@ -62,7 +62,7 @@ $ nix-build https://github.com/NixOS/nixpkgs/archive/master.tar.gz -A hello
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master branch.</para></listitem>
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<listitem><para>In the Nix search path (as specified via
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<envar>NIX_PATH</envar> or <option>-I</option>). For example, to
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<literal>NIX_PATH</literal> or <option>-I</option>). For example, to
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start a shell containing the Pan package from a specific version
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of Nixpkgs:
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@ -190,8 +190,8 @@ main = do
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“generation” symlink in <filename>/nix/var/nix/profiles</filename>
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if something actually changed.</para></listitem>
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<listitem><para>The environment variable <envar>NIX_PAGER</envar>
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can now be set to override <envar>PAGER</envar>. You can set it to
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<listitem><para>The environment variable <literal>NIX_PAGER</literal>
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can now be set to override <literal>PAGER</literal>. You can set it to
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<literal>cat</literal> to disable paging for Nix commands
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only.</para></listitem>
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@ -30,7 +30,7 @@
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<listitem>
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<para>The “copy from other stores” substituter mechanism
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(<command>copy-from-other-stores</command> and the
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<envar>NIX_OTHER_STORES</envar> environment variable) has been
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<literal>NIX_OTHER_STORES</literal> environment variable) has been
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removed. It was primarily used by the NixOS installer to copy
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available paths from the installation medium. The replacement is
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to use a chroot store as a substituter
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@ -371,7 +371,7 @@
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daemon. You can use <literal>auto</literal> or the empty
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string to auto-select a local or daemon store depending on
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whether you have write permission to the Nix store. It is no
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longer necessary to set the <envar>NIX_REMOTE</envar>
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longer necessary to set the <literal>NIX_REMOTE</literal>
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environment variable to use the Nix daemon.</para>
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<para>As noted above, <classname>LocalStore</classname> now
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@ -492,7 +492,7 @@
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use <filename>/build</filename> instead of
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<filename>/tmp</filename> as the temporary build
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directory. This fixes potential security problems when a build
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accidentally stores its <envar>TMPDIR</envar> in some
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accidentally stores its <literal>TMPDIR</literal> in some
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security-sensitive place, such as an RPATH.</para>
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</listitem>
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@ -546,8 +546,8 @@
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are not using the Nix daemon, you can now just specify a remote
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build machine on the command line, e.g. <literal>--option builders
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'ssh://my-mac x86_64-darwin'</literal>. The environment variable
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<envar>NIX_BUILD_HOOK</envar> has been removed and is no longer
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needed. The environment variable <envar>NIX_REMOTE_SYSTEMS</envar>
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<literal>NIX_BUILD_HOOK</literal> has been removed and is no longer
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needed. The environment variable <literal>NIX_REMOTE_SYSTEMS</literal>
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is still supported for compatibility, but it is also possible to
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specify builders in <command>nix.conf</command> by setting the
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option <literal>builders =
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@ -574,7 +574,7 @@
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</listitem>
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<listitem>
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<para><envar>NIX_PATH</envar> is now lazy, so URIs in the path are
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<para><literal>NIX_PATH</literal> is now lazy, so URIs in the path are
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only downloaded if they are needed for evaluation.</para>
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</listitem>
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<para><command>nix-shell</command> now uses
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<varname>bashInteractive</varname> from Nixpkgs, rather than the
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<command>bash</command> command that happens to be in the caller’s
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<envar>PATH</envar>. This is especially important on macOS where
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<literal>PATH</literal>. This is especially important on macOS where
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the <command>bash</command> provided by the system is seriously
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outdated and cannot execute <literal>stdenv</literal>’s setup
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script.</para>
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@ -720,7 +720,7 @@
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configureFlags = "--prefix=${placeholder "out"} --includedir=${placeholder "dev"}";
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</programlisting>
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will cause the <envar>configureFlags</envar> environment variable
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will cause the <literal>configureFlags</literal> environment variable
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to contain the actual store paths corresponding to the
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<literal>out</literal> and <literal>dev</literal> outputs.</para>
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</listitem>
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<varname>__structuredAttrs</varname> is set to
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<literal>true</literal>, the other derivation attributes are
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serialised in JSON format and made available to the builder via
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the file <envar>.attrs.json</envar> in the builder’s temporary
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the file <literal>.attrs.json</literal> in the builder’s temporary
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directory. This obviates the need for
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<varname>passAsFile</varname> since JSON files have no size
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restrictions, unlike process environments.</para>
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<para><link
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xlink:href="https://github.com/NixOS/nix/commit/2d5b1b24bf70a498e4c0b378704cfdb6471cc699">As
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a convenience to Bash builders</link>, Nix writes a script named
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<envar>.attrs.sh</envar> to the builder’s directory that
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<literal>.attrs.sh</literal> to the builder’s directory that
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initialises shell variables corresponding to all attributes that
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are representable in Bash. This includes non-nested (associative)
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arrays. For example, the attribute <literal>hardening.format =
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<para>Builders can <link
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xlink:href="https://github.com/NixOS/nix/commit/88e6bb76de5564b3217be9688677d1c89101b2a3">now</link>
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communicate what build phase they are in by writing messages to
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the file descriptor specified in <envar>NIX_LOG_FD</envar>. The
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the file descriptor specified in <literal>NIX_LOG_FD</literal>. The
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current phase is shown by the <command>nix</command> progress
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indicator.
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</para>
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@ -114,8 +114,8 @@ import <nix/fetchurl.nix> {
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<listitem>
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<para>The evaluator now prints profiling statistics (enabled via
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the <envar>NIX_SHOW_STATS</envar> and
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<envar>NIX_COUNT_CALLS</envar> environment variables) in JSON
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the <literal>NIX_SHOW_STATS</literal> and
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<literal>NIX_COUNT_CALLS</literal> environment variables) in JSON
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format.</para>
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</listitem>
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@ -60,7 +60,7 @@ incompatible changes:</para>
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<listitem>
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<para>Builds are now executed in a pseudo-terminal, and the
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<envar>TERM</envar> environment variable is set to
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<literal>TERM</literal> environment variable is set to
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<literal>xterm-256color</literal>. This allows many programs
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(e.g. <command>gcc</command>, <command>clang</command>,
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<command>cmake</command>) to print colorized log output.</para>
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