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pull: '--news' no longer shows package lists.
* guix/scripts/pull.scm (display-channel-news): Return #t when news were displayed. (display-news): Add #:profile-news? parameter and honor it. Print something there were no news. (process-query): For 'display-news', call 'display-channel-news' directly. * doc/guix.texi (Invoking guix pull): Adjust accordingly.
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Ludovic Courtès
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85a5110de7
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bc8bea1739
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@ -4486,13 +4486,13 @@ information.
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@cindex channel news
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@item --news
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@itemx -N
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Display the list of packages added or upgraded since the previous
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generation, as well as, occasionally, news written by channel authors
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for their users (@pxref{Channels, Writing Channel News}).
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Display news written by channel authors for their users for changes made
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since the previous generation (@pxref{Channels, Writing Channel News}).
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When @option{--details} is passed, additionally display new and upgraded
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packages.
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The package information is the same as displayed upon @command{guix
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pull} completion, but without ellipses; it is also similar to the output
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of @command{guix pull -l} for the last generation (see below).
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You can view that information for previous generations with
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@command{guix pull -l}.
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@item --list-generations[=@var{pattern}]
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@itemx -l [@var{pattern}]
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@ -4507,8 +4507,9 @@ revision as well as the corresponding news entries. If you pass
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upgraded in each generation compared to the previous one.
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@item --details
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Instruct @option{--list-generations} to display more information about
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the differences between subsequent generations---see above.
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Instruct @option{--list-generations} or @option{--news} to display more
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information about the differences between subsequent generations---see
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above.
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@item --roll-back
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@cindex rolling back
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@ -143,14 +143,10 @@ Download and deploy the latest version of Guix.\n"))
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(option '("details") #f #f
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(lambda (opt name arg result)
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(alist-cons 'details? #t
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(match (find (match-lambda
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(('query 'list-generations _)
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#t)
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(_ #f))
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result)
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(#t result)
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(#f (cons `(query list-generations #f)
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result))))))
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(if (assoc-ref result 'query)
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result
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(cons `(query list-generations #f)
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result)))))
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(option '("roll-back") #f #f
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(lambda (opt name arg result)
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(cons '(generation roll-back)
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@ -165,7 +161,8 @@ Download and deploy the latest version of Guix.\n"))
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result)))
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(option '(#\N "news") #f #f
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(lambda (opt name arg result)
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(cons '(query display-news) result)))
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(cons '(query display-news)
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(alist-delete 'query result))))
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(option '("url") #t #f
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(lambda (opt name arg result)
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(alist-cons 'repository-url arg
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@ -352,45 +349,48 @@ to display."
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(previous
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(and=> (relative-generation profile -1)
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(cut generation-file-name profile <>))))
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"Display news about the channels of PROFILE compared to PREVIOUS."
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(when previous
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(let ((old-channels (profile-channels previous))
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(new-channels (profile-channels profile)))
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(and (pair? old-channels) (pair? new-channels)
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(begin
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(match (lset-difference channel=? new-channels old-channels)
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(()
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#t)
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(new
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(let ((count (length new)))
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(format (current-error-port)
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(N_ " ~a new channel:~%"
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" ~a new channels:~%" count)
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count)
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(for-each display-channel new))))
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(match (lset-difference channel=? old-channels new-channels)
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(()
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#t)
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(removed
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(let ((count (length removed)))
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(format (current-error-port)
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(N_ " ~a channel removed:~%"
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" ~a channels removed:~%" count)
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count)
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(for-each display-channel removed))))
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"Display news about the channels of PROFILE compared to PREVIOUS. Return
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true if news were displayed, false otherwise."
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(and previous
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(let ((old-channels (profile-channels previous))
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(new-channels (profile-channels profile)))
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(and (pair? old-channels) (pair? new-channels)
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(begin
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(match (lset-difference channel=? new-channels old-channels)
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(()
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#t)
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(new
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(let ((count (length new)))
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(format (current-error-port)
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(N_ " ~a new channel:~%"
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" ~a new channels:~%" count)
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count)
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(for-each display-channel new))))
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(match (lset-difference channel=? old-channels new-channels)
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(()
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#t)
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(removed
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(let ((count (length removed)))
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(format (current-error-port)
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(N_ " ~a channel removed:~%"
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" ~a channels removed:~%" count)
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count)
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(for-each display-channel removed))))
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;; Display channel-specific news for those channels that were
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;; here before and are still around afterwards.
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(for-each (match-lambda
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((new old)
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(display-channel-specific-news new old)))
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(filter-map (lambda (new)
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(define old
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(find (cut channel=? new <>)
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old-channels))
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;; Display channel-specific news for those channels that were
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;; here before and are still around afterwards.
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(fold (match-lambda*
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(((new old) news?)
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(or (display-channel-specific-news new old)
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news?)))
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#f
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(filter-map (lambda (new)
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(define old
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(find (cut channel=? new <>)
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old-channels))
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(and old (list new old)))
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new-channels)))))))
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(and old (list new old)))
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new-channels)))))))
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(define* (display-channel-news-headlines profile)
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"Display the titles of news about the channels of PROFILE compared to its
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@ -421,13 +421,26 @@ previous generation. Return true if there are news to display."
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(any ->bool more?))))))
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(define (display-news profile)
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;; Display profile news, with the understanding that this process represents
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;; the newest generation.
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(display-profile-news profile
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#:current-is-newer? #t)
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(define* (display-news profile #:key (profile-news? #f))
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"Display channel news for PROFILE compared to its previous generation. When
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PROFILE-NEWS? is true, display the list of added/upgraded packages since the
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previous generation."
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(define previous
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(relative-generation profile -1))
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(display-channel-news profile))
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(if previous
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(begin
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(when profile-news?
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(display-profile-news profile
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#:current-is-newer? #t))
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(unless (display-channel-news profile
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(generation-file-name profile previous))
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(info (G_ "no channel news since generation ~a~%") previous)
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(display-hint (G_ "Run @command{guix pull -l} to view the
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news for earlier generations."))))
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(leave (G_ "profile ~a does not have a previous generation~%")
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profile)))
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(define* (build-and-install instances profile)
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"Build the tool from SOURCE, and install it in PROFILE. When DRY-RUN? is
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@ -698,7 +711,8 @@ Return true when there is more package info to display."
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(lambda ()
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(list-generations profile numbers))))))))))
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(('display-news)
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(display-news profile))))
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(display-news profile
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#:profile-news? (assoc-ref opts 'details?)))))
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(define (process-generation-change opts profile)
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"Process a request to change the current generation (roll-back, switch, delete)."
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