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bash: don't unconditionally set HISTFILE variable (#1621)

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The bash module always assigns a value to HISTFILE in the bashrc, even
when no value is explicitly set. This makes it impossible to tell bash
to use a different HISTFILE by setting the HISTFILE environment variable

    HISTFILE=/tmp/bash_history bash

This changes the default value of programs.bash.historyFile to null, and
only writes the HISTFILE=... line to the bashrc if it is changed to
something else.
This commit is contained in:
Olmo Kramer 2021-02-12 19:06:24 +01:00 committed by GitHub
parent 87e2ec341b
commit 1ee1d01daa
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 3 deletions
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8
modules/programs/bash.nix
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@ -30,8 +30,8 @@ in
}; };
historyFile = mkOption { historyFile = mkOption {
type = types.str; type = types.nullOr types.str;
default = "$HOME/.bash_history"; default = null;
description = "Location of the bash history file."; description = "Location of the bash history file.";
}; };
@ -157,10 +157,12 @@ in
historyControlStr = historyControlStr =
concatStringsSep "\n" (mapAttrsToList (n: v: "${n}=${v}") ( concatStringsSep "\n" (mapAttrsToList (n: v: "${n}=${v}") (
{ {
HISTFILE = "\"${cfg.historyFile}\"";
HISTFILESIZE = toString cfg.historyFileSize; HISTFILESIZE = toString cfg.historyFileSize;
HISTSIZE = toString cfg.historySize; HISTSIZE = toString cfg.historySize;
} }
// optionalAttrs (cfg.historyFile != null) {
HISTFILE = "\"${cfg.historyFile}\"";
}
// optionalAttrs (cfg.historyControl != []) { // optionalAttrs (cfg.historyControl != []) {
HISTCONTROL = concatStringsSep ":" cfg.historyControl; HISTCONTROL = concatStringsSep ":" cfg.historyControl;
} }