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pull: Display news titles directly upon 'pull'.
* guix/scripts/pull.scm (display-profile-news): Return true when there's more to display. (display-news-entry-title): New procedure. (display-news-entry): Use it. (display-channel-specific-news): Return true when there's more to display. (display-channel-news-headlines): New procedure. (build-and-install): Call it. When 'display-channel-news-headlines' or 'display-profile-news' returns #t, print a hint to run "pull --news". (display-new/upgraded-packages): Return true when there's more to display.
This commit is contained in:
Ludovic Courtès
parent
192ee02aeb
commit
dabdd7d465
1 changed files with 81 additions and 31 deletions
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@ -189,7 +189,7 @@ (define* (display-profile-news profile #:key concise?
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current-is-newer?)
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"Display what's up in PROFILE--new packages, and all that. If
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CURRENT-IS-NEWER? is true, assume that the current process represents the
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newest generation of PROFILE."
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newest generation of PROFILE. Return true when there's more info to display."
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(match (memv (generation-number profile)
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(reverse (profile-generations profile)))
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((current previous _ ...)
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@ -212,7 +212,7 @@ (define* (display-profile-news profile #:key concise?
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#:concise? concise?
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#:heading
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(G_ "New in this revision:\n")))))
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(_ #t)))
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(_ #f)))
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(define (display-channel channel)
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"Display information about CHANNEL."
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@ -230,17 +230,25 @@ (define (channel=? channel1 channel2)
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;; Assume that the URL matters less than the name.
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(eq? (channel-name channel1) (channel-name channel2)))
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(define (display-news-entry entry language port)
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"Display ENTRY, a <channel-news-entry>, in LANGUAGE, a language code, to
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PORT."
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(let ((title (channel-news-entry-title entry))
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(body (channel-news-entry-body entry)))
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(define (display-news-entry-title entry language port)
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"Display the title of ENTRY, a news entry, to PORT."
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(define title
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(channel-news-entry-title entry))
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(format port " ~a~%"
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(highlight
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(string-trim-right
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(texi->plain-text (or (assoc-ref title language)
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(assoc-ref title (%default-message-language))
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"")))))
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""))))))
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(define (display-news-entry entry language port)
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"Display ENTRY, a <channel-news-entry>, in LANGUAGE, a language code, to
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PORT."
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(define body
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(channel-news-entry-body entry))
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(display-news-entry-title entry language port)
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(format port (G_ " commit ~a~%")
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(channel-news-entry-commit entry))
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(newline port)
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@ -251,12 +259,15 @@ (define (display-news-entry entry language port)
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(texi->plain-text (or (assoc-ref body language)
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(assoc-ref body (%default-message-language))
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""))))
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4))))
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4)))
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(define* (display-channel-specific-news new old
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#:key (port (current-output-port)))
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#:key (port (current-output-port))
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concise?)
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"Display channel news applicable the commits between OLD and NEW, where OLD
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and NEW are <channel> records with a proper 'commit' field."
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and NEW are <channel> records with a proper 'commit' field. When CONCISE? is
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true, display nothing but the news titles. Return true if there are more news
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to display."
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(let ((channel new)
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(old (channel-commit old))
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(new (channel-commit new)))
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@ -264,13 +275,17 @@ (define* (display-channel-specific-news new old
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(let ((language (current-message-language)))
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(match (channel-news-for-commit channel new old)
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(() ;no news is good news
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#t)
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#f)
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((entries ...)
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(newline port)
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(format port (G_ "News for channel '~a'~%")
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(channel-name channel))
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(for-each (cut display-news-entry <> language port) entries)
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(newline port)))))))
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(for-each (if concise?
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(cut display-news-entry-title <> language port)
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(cut display-news-entry <> language port))
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entries)
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(newline port)
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#t))))))
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(define* (display-channel-news profile
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#:optional
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@ -317,6 +332,35 @@ (define old
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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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previous generation. Return true if there are news to display."
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(define previous
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(and=> (relative-generation profile -1)
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(cut generation-file-name profile <>)))
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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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;; Find the channels present in both PROFILE and PREVIOUS, and print
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;; their news.
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(and (pair? old-channels) (pair? new-channels)
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(let ((channels (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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(define more?
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(map (match-lambda
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((new old)
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(display-channel-specific-news new old
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#:concise? #t)))
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channels))
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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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@ -344,7 +388,12 @@ (define guix-command
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#:dry-run? dry-run?)
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(munless dry-run?
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(return (newline))
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(return (display-profile-news profile #:concise? #t))
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(return
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(let ((more? (list (display-profile-news profile #:concise? #t)
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(display-channel-news-headlines profile))))
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(when (any ->bool more?)
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(display-hint
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(G_ "Run @command{guix pull --news} to read all the news.")))))
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(if guix-command
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(let ((new (map (cut string-append <> "/bin/guix")
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(list (user-friendly-profile profile)
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@ -544,7 +593,9 @@ (define* (display-new/upgraded-packages alist1 alist2
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"Given the two package name/version alists ALIST1 and ALIST2, display the
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list of new and upgraded packages going from ALIST1 to ALIST2. When ALIST1
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and ALIST2 differ, display HEADING upfront. When CONCISE? is true, do not
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display long package lists that would fill the user's screen."
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display long package lists that would fill the user's screen.
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Return true when there is more package info to display."
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(define (pretty str column)
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(indented-string (fill-paragraph str (- (%text-width) 4)
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column)
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@ -587,10 +638,9 @@ (define upgraded-count (length upgraded))
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(pretty (list->enumeration (sort upgraded string<?))
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35))))
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(when (and concise?
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(and concise?
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(or (> new-count concise/max-item-count)
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(> upgraded-count concise/max-item-count)))
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(display-hint (G_ "Run @command{guix pull --news} to read all the news.")))))
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(> upgraded-count concise/max-item-count)))))
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(define (display-profile-content-diff profile gen1 gen2)
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"Display the changes in PROFILE GEN2 compared to generation GEN1."
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