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authorLudovic Courtès <ludo@gnu.org>2018-05-30 17:50:21 +0200
committerLudovic Courtès <ludo@gnu.org>2018-06-09 12:02:27 +0200
commit75e24d7b0e19ab2164aecb340e82d07d2b9714e7 (patch)
tree7e46b4d70532dc16482c57f94b6257b42600c04b /doc
parent8a0d9bc8a3f153159d9e239a151c0fa98f1e12d8 (diff)
pull: Install the new Guix in a profile.
* guix/scripts/pull.scm (%pull-version): New variable. (build-from-source): Pass #:pull-version to BUILD. (whole-package-for-legacy, derivation->manifest-entry): New procedure. (build-and-install): Rewrite in terms of 'build-and-use-profile'. * guix/scripts/system.scm (maybe-suggest-running-guix-pull)[latest]: Switch to "/current". * scripts/guix.in (augment-load-paths!): Remove use of ~/.config/guix/latest. * build-aux/compile-as-derivation.scm: Replace "/guix/latest/" with "/current/share/guile/site/X.Y" * guix/scripts.scm (warn-about-old-distro)[age]: Check "/current" instead of "/latest". * doc/guix.texi (Invoking guix pull): Document it. * doc/contributing.texi (Running Guix Before It Is Installed): Remove footnote about abusing ~/.config/guix/latest.
Diffstat (limited to 'doc')
-rw-r--r--doc/contributing.texi10
-rw-r--r--doc/guix.texi38
2 files changed, 35 insertions, 13 deletions
diff --git a/doc/contributing.texi b/doc/contributing.texi
index 2792fe2b29..205c972aea 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -155,15 +155,9 @@ The @command{pre-inst-env} script sets up all the environment variables
necessary to support this, including @env{PATH} and @env{GUILE_LOAD_PATH}.
Note that @command{./pre-inst-env guix pull} does @emph{not} upgrade the
-local source tree; it simply updates the @file{~/.config/guix/latest}
+local source tree; it simply updates the @file{~/.config/guix/current}
symlink (@pxref{Invoking guix pull}). Run @command{git pull} instead if
-you want to upgrade your local source tree.@footnote{If you would like
-to set up @command{guix} to use your Git checkout, you can point the
-@file{~/.config/guix/latest} symlink to your Git checkout directory.
-If you are the sole user of your system, you may also consider pointing
-the @file{/root/.config/guix/latest} symlink to point to
-@file{~/.config/guix/latest}; this way it will always use the same
-@command{guix} as your user does.}
+you want to upgrade your local source tree.
@node The Perfect Setup
diff --git a/doc/guix.texi b/doc/guix.texi
index 6ed4799dfc..13b42f59f3 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2743,11 +2743,39 @@ Any user can update their Guix copy using @command{guix pull}, and the
effect is limited to the user who run @command{guix pull}. For
instance, when user @code{root} runs @command{guix pull}, this has no
effect on the version of Guix that user @code{alice} sees, and vice
-versa@footnote{Under the hood, @command{guix pull} updates the
-@file{~/.config/guix/latest} symbolic link to point to the latest Guix,
-and the @command{guix} command loads code from there. Currently, the
-only way to roll back an invocation of @command{guix pull} is to
-manually update this symlink to point to the previous Guix.}.
+versa.
+
+The result of running @command{guix pull} is a @dfn{profile} available
+under @file{~/.config/guix/current} containing the latest Guix. Thus,
+make sure to add it to the beginning of your search path so that you use
+the latest version, and similarly for the Info manual
+(@pxref{Documentation}):
+
+@example
+export PATH="$HOME/.config/guix/current/bin:$PATH"
+export INFOPATH="$HOME/.config/guix/current/share/info:$INFOPATH"
+@end example
+
+This @code{~/.config/guix/current} profile works like any other profile
+created by @command{guix package} (@pxref{Invoking guix package}). That
+is, you can list generations, roll back to the previous
+generation---i.e., the previous Guix---and so on:
+
+@example
+$ guix package -p ~/.config/guix/current -l
+Generation 1 May 25 2018 10:06:41
+ guix 221951a out /gnu/store/i4dfk7vw5k112s49jrhl6hwsfnh6wr7l-guix-221951af4
+
+Generation 2 May 27 2018 19:07:47
+ + guix 2fbae00 out /gnu/store/44cv9hyvxg34xf5kblf5dz57hc52y4bm-guix-2fbae006f
+ - guix 221951a out /gnu/store/i4dfk7vw5k112s49jrhl6hwsfnh6wr7l-guix-221951af4
+
+Generation 3 May 30 2018 16:11:39 (current)
+ + guix a076f19 out /gnu/store/332czkicwwg6lc3x4aqbw5q2mq12s7fj-guix-a076f1990
+ - guix 2fbae00 out /gnu/store/44cv9hyvxg34xf5kblf5dz57hc52y4bm-guix-2fbae006f
+$ guix package -p ~/.config/guix/current --roll-back
+switched from generation 3 to 2
+@end example
The @command{guix pull} command is usually invoked with no arguments,
but it supports the following options: