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03/03: size: Add '--map-file' option.
From: |
Ludovic Courtès |
Subject: |
03/03: size: Add '--map-file' option. |
Date: |
Sun, 21 Jun 2015 21:39:21 +0000 |
civodul pushed a commit to branch master
in repository guix.
commit a8f996c605c181e5adae0de24b235d463825beab
Author: Ludovic Courtès <address@hidden>
Date: Sun Jun 21 23:25:19 2015 +0200
size: Add '--map-file' option.
* guix/scripts/size.scm (profile->page-map): New procedures.
(show-help, %options): Add --map-file.
(guix-size): Honor it.
* doc/guix.texi (Invoking guix size): Document it.
* doc/images/coreutils-size-map.png: New file.
* doc.am (dist_infoimage_DATA): Add it.
---
doc.am | 4 ++-
doc/guix.texi | 15 ++++++++++-
doc/images/coreutils-size-map.png | Bin 0 -> 6755 bytes
guix/scripts/size.scm | 51 ++++++++++++++++++++++++++++++++++++-
4 files changed, 67 insertions(+), 3 deletions(-)
diff --git a/doc.am b/doc.am
index ee896c1..9d72b11 100644
--- a/doc.am
+++ b/doc.am
@@ -40,7 +40,9 @@ doc/os-config-%.texi: gnu/system/examples/%.tmpl
cp "$<" "$@"
infoimagedir = $(infodir)/images
-dist_infoimage_DATA = doc/images/bootstrap-graph.png
+dist_infoimage_DATA = \
+ doc/images/bootstrap-graph.png \
+ doc/images/coreutils-size-map.png
# Try hard to obtain an image size and aspect that's reasonable for inclusion
# in an Info or PDF document.
diff --git a/doc/guix.texi b/doc/guix.texi
index a669464..f9c9f2a 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -4038,10 +4038,23 @@ reports information based on information about the
available substitutes
(@pxref{Substitutes}). This allows it to profile disk usage of store
items that are not even on disk, only available remotely.
-A single option is available:
+The available options are:
@table @option
address@hidden address@hidden
+Write to @var{file} a graphical map of disk usage as a PNG file.
+
+For the example above, the map looks like this:
+
address@hidden/coreutils-size-map,5in,, map of Coreutils disk usage
+produced by @command{guix size}}
+
+This option requires that
address@hidden://wingolog.org/software/guile-charting/, Guile-Charting} be
+installed and visible in Guile's module search path. When that is not
+the case, @command{guix size} fails as it tries to load it.
+
@item address@hidden
@itemx -s @var{system}
Consider packages for @var{system}---e.g., @code{x86_64-linux}.
diff --git a/doc/images/coreutils-size-map.png
b/doc/images/coreutils-size-map.png
new file mode 100644
index 0000000..21d73a8
Binary files /dev/null and b/doc/images/coreutils-size-map.png differ
diff --git a/guix/scripts/size.scm b/guix/scripts/size.scm
index 2fe2f02..13341fd 100644
--- a/guix/scripts/size.scm
+++ b/guix/scripts/size.scm
@@ -185,6 +185,45 @@ as \"guile:debug\" or \"gcc-4.8\" and return its store
file name."
;;;
+;;; Charts.
+;;;
+
+;; Autoload Guile-Charting.
+;; XXX: Use this hack instead of #:autoload to avoid compilation errors.
+;; See <http://bugs.gnu.org/12202>.
+(module-autoload! (current-module)
+ '(charting) '(make-page-map))
+
+(define (profile->page-map profiles file)
+ "Write a 'page map' chart of PROFILES, a list of <profile> objects, to FILE,
+the name of a PNG file."
+ (define (strip name)
+ (string-drop name (+ (string-length (%store-prefix)) 28)))
+
+ (define data
+ (fold2 (lambda (profile result offset)
+ (match profile
+ (($ <profile> name self)
+ (let ((self (inexact->exact
+ (round (/ self (expt 2. 10))))))
+ (values `((,(strip name) ,offset . ,self)
+ ,@result)
+ (+ offset self))))))
+ '()
+ 0
+ (sort profiles
+ (match-lambda*
+ ((($ <profile> _ _ total1) ($ <profile> _ _ total2))
+ (> total1 total2))))))
+
+ ;; TRANSLATORS: This is the title of a graph, meaning that the graph
+ ;; represents a profile of the store (the "store" being the place where
+ ;; packages are stored.)
+ (make-page-map (_ "store profile") (pk data)
+ #:write-to-png file))
+
+
+;;;
;;; Options.
;;;
@@ -192,6 +231,8 @@ as \"guile:debug\" or \"gcc-4.8\" and return its store file
name."
(display (_ "Usage: guix size [OPTION]... PACKAGE
Report the size of PACKAGE and its dependencies.\n"))
(display (_ "
+ -m, --map-file=FILE write to FILE a graphical map of disk usage"))
+ (display (_ "
-s, --system=SYSTEM consider packages for SYSTEM--e.g., \"i686-linux\""))
(newline)
(display (_ "
@@ -207,6 +248,9 @@ Report the size of PACKAGE and its dependencies.\n"))
(lambda (opt name arg result)
(alist-cons 'system arg
(alist-delete 'system result eq?))))
+ (option '(#\m "map-file") #t #f
+ (lambda (opt name arg result)
+ (alist-cons 'map-file arg result)))
(option '(#\h "help") #f #f
(lambda args
(show-help)
@@ -230,6 +274,7 @@ Report the size of PACKAGE and its dependencies.\n"))
(('argument . file) file)
(_ #f))
opts))
+ (map-file (assoc-ref opts 'map-file))
(system (assoc-ref opts 'system)))
(match files
(()
@@ -239,7 +284,11 @@ Report the size of PACKAGE and its dependencies.\n"))
(run-with-store store
(mlet* %store-monad ((item (ensure-store-item file))
(profile (store-profile item)))
- (display-profile* profile))
+ (if map-file
+ (begin
+ (profile->page-map profile map-file)
+ (return #t))
+ (display-profile* profile)))
#:system system)))
((files ...)
(leave (_ "too many arguments\n")))))))