;;======================================================================
;; Copyright 2017, Matthew Welland.
;;
;; This file is part of Megatest.
;;
;; Megatest is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; Megatest is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Megatest. If not, see <http://www.gnu.org/licenses/>.
;;======================================================================
;;======================================================================
;; Megatestmod:
;;
;; Put things here don't fit anywhere else
;;======================================================================
(declare (unit fsmod))
(declare (uses debugprint))
(declare (uses mtargs))
(declare (uses configfmod))
(declare (uses commonmod))
(declare (uses processmod))
(use srfi-69)
(module fsmod
*
(import scheme)
(cond-expand
(chicken-4
(import chicken
ports
(prefix base64 base64:)
(prefix sqlite3 sqlite3:)
data-structures
extras
files
matchable
md5
message-digest
pathname-expand
posix
posix-extras
regex
regex-case
sparse-vectors
srfi-1
srfi-18
srfi-69
typed-records
z3
(prefix mtargs args:)
)
(use srfi-69))
(chicken-5
(import (prefix sqlite3 sqlite3:)
;; data-structures
;; extras
;; files
;; posix
;; posix-extras
chicken.base
chicken.condition
chicken.file
chicken.file.posix
chicken.io
chicken.pathname
chicken.port
chicken.process
chicken.process-context
chicken.process-context.posix
chicken.sort
chicken.string
chicken.time
chicken.time.posix
matchable
md5
message-digest
pathname-expand
regex
regex-case
srfi-1
srfi-18
srfi-69
typed-records
system-information
)))
(import configfmod
commonmod
debugprint
processmod
)
;;======================================================================
;; given path get free space, allows override in [setup]
;; with free-space-script /path/to/some/script.sh
;;
(define (get-df path)
(if (configf:lookup *configdat* "setup" "free-space-script")
(with-input-from-pipe
(conc (configf:lookup *configdat* "setup" "free-space-script") " " path)
(lambda ()
(let ((res (read-line)))
(if (string? res)
(string->number res)))))
(get-unix-df path)))
(define (get-free-inodes path)
(if (configf:lookup *configdat* "setup" "free-inodes-script")
(with-input-from-pipe
(conc (configf:lookup *configdat* "setup" "free-inodes-script") " " path)
(lambda ()
(let ((res (read-line)))
(if (string? res)
(string->number res)))))
(get-unix-inodes path)))
;;======================================================================
;; D I S K S P A C E
;;======================================================================
(define (common:get-disk-space-used fpath)
(with-input-from-pipe (conc "/usr/bin/du -s " fpath) read))
(define (get-unix-df path)
(let* ((df-results (process:cmd-run->list (conc "df " path)))
(space-rx (regexp "([0-9]+)\\s+([0-9]+)%"))
(freespc #f))
;; (write df-results)
(for-each (lambda (l)
(let ((match (string-search space-rx l)))
(if match
(let ((newval (string->number (cadr match))))
(if (number? newval)
(set! freespc newval))))))
(car df-results))
freespc))
(define (get-unix-inodes path)
(let* ((df-results (process:cmd-run->list (conc "df -i " path)))
(space-rx (regexp "([0-9]+)\\s+([0-9]+)%"))
(freenodes 0)) ;; 0 is a better failsafe than #f here.
;; (write df-results)
(for-each (lambda (l)
(let ((match (string-search space-rx l)))
(if match
(let ((newval (string->number (cadr match))))
(if (number? newval)
(set! freenodes newval))))))
(car df-results))
freenodes))
(define (common:check-space-in-dir dirpath required)
(let* ((dbspace (if (directory? dirpath)
(get-df dirpath)
0)))
(list (> dbspace required)
dbspace
required
dirpath)))
(define (get-uname . params)
(let* ((uname-res (process:cmd-run->list (conc "uname " (if (null? params) "-a" (car params)))))
(uname #f))
(if (null? (car uname-res))
"unknown"
(caar uname-res))))
;;======================================================================
;; check space in dbdir and in megatest dir
;; returns: ok/not dbspace required-space
;;
(define (common:check-db-dir-space)
(let* ((required (string->number
;; default is 1GB (or actually a billion bytes) This is the number of 1 kB blocks.
(or (configf:lookup *configdat* "setup" "dbdir-space-required")
"1000000")))
(dbdir (common:make-tmpdir-name *toppath* "")) ;; (db:get-dbdir))
(tdbspace (common:check-space-in-dir dbdir required))
(mdbspace (common:check-space-in-dir *toppath* required)))
(sort (list tdbspace mdbspace) (lambda (a b)
(< (cadr a)(cadr b))))))
;;======================================================================
;; check available space in dbdir, exit if insufficient
;;
(define (common:check-db-dir-and-exit-if-insufficient)
(let* ((spacedat (car (common:check-db-dir-space))) ;; look only at worst for now
(is-ok (car spacedat))
(dbspace (cadr spacedat))
(required (caddr spacedat))
(dbdir (cadddr spacedat)))
(if (not is-ok)
(begin
(debug:print-error 0 *default-log-port* "Insufficient space in " dbdir ", require " required ", have " dbspace ", exiting now.")
(exit 1)))))
;;======================================================================
;; paths is list of lists ((name path) ... )
;;
(define (common:get-disk-with-most-free-space disks minsize)
(let* ((best #f)
(bestsize 0)
(default-min-inodes-string "1000000")
(default-min-inodes (string->number default-min-inodes-string))
(min-inodes (or (string->number (if (configf:lookup *configdat* "setup" "min_inodes") (configf:lookup *configdat* "setup" "min_inodes") default-min-inodes-string)) default-min-inodes)))
(for-each
(lambda (disk-num)
(let* ((dirpath (cadr (assoc disk-num disks)))
(freespc (cond
((not (directory? dirpath))
(if (common:low-noise-print 300 "disks not a dir " disk-num)
(debug:print 0 *default-log-port* "WARNING: disk " disk-num " at path \"" dirpath "\" is not a directory - ignoring it."))
-1)
((not (file-write-access? dirpath))
(if (common:low-noise-print 300 "disks not writeable " disk-num)
(debug:print 0 *default-log-port* "WARNING: disk " disk-num " at path \"" dirpath "\" is not writeable - ignoring it."))
-1)
((not (eq? (string-ref dirpath 0) #\/))
(if (common:low-noise-print 300 "disks not a proper path " disk-num)
(debug:print 0 *default-log-port* "WARNING: disk " disk-num " at path \"" dirpath "\" is not a fully qualified path - ignoring it."))
-1)
(else
(get-df dirpath))))
(free-inodes (cond
((not (directory? dirpath))
(if (common:low-noise-print 300 "disks not a dir " disk-num)
(debug:print 0 *default-log-port* "WARNING: disk " disk-num " at path \"" dirpath "\" is not a directory - ignoring it."))
-1)
((not (file-write-access? dirpath))
(if (common:low-noise-print 300 "disks not writeable " disk-num)
(debug:print 0 *default-log-port* "WARNING: disk " disk-num " at path \"" dirpath "\" is not writeable - ignoring it."))
-1)
((not (eq? (string-ref dirpath 0) #\/))
(if (common:low-noise-print 300 "disks not a proper path " disk-num)
(debug:print 0 *default-log-port* "WARNING: disk " disk-num " at path \"" dirpath "\" is not a fully qualified path - ignoring it."))
-1)
(else
(get-free-inodes dirpath))))
;;(free-inodes (get-free-inodes dirpath))
)
(debug:print 2 *default-log-port* "INFO: disk " disk-num " path " dirpath " free space " freespc " free inodes " free-inodes)
(if (and (> freespc bestsize)(> free-inodes min-inodes ))
(begin
(set! best (cons disk-num dirpath))
(set! bestsize freespc)))
;;(print "Processing: " disk-num " bestsize: " bestsize " best: " best " freespc: " freespc " min-inodes: " min-inodes " free-inodes: " free-inodes)
))
(map car disks))
(if (and best (> bestsize minsize))
best
#f))) ;; #f means no disk candidate found
)