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1 if [ ! "$_PACKAGES_INDEX_SUBR" ]; then _PACKAGES_INDEX_SUBR=1
2 #
3 # Copyright (c) 2013 Devin Teske
4 # All rights reserved.
5 #
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
8 # are met:
9 # 1. Redistributions of source code must retain the above copyright
10 #    notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 #    notice, this list of conditions and the following disclaimer in the
13 #    documentation and/or other materials provided with the distribution.
14 #
15 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 # SUCH DAMAGE.
26 #
27 # $FreeBSD$
28 #
29 ############################################################ INCLUDES
30
31 BSDCFG_SHARE="/usr/share/bsdconfig"
32 . $BSDCFG_SHARE/common.subr || exit 1
33 f_dprintf "%s: loading includes..." packages/index.subr
34 f_include $BSDCFG_SHARE/device.subr
35 f_include $BSDCFG_SHARE/media/common.subr
36 f_include $BSDCFG_SHARE/packages/musthavepkg.subr
37 f_include $BSDCFG_SHARE/strings.subr
38
39 BSDCFG_LIBE="/usr/libexec/bsdconfig"
40 f_include_lang $BSDCFG_LIBE/include/messages.subr
41
42 ############################################################ GLOBALS
43
44 PACKAGE_INDEX=
45 _INDEX_INITTED=
46
47 #
48 # Default path to pkg(8) repo-packagesite.sqlite database
49 #
50 SQLITE_REPO="/var/db/pkg/repo-packagesite.sqlite"
51
52 #
53 # Default path to on-disk cache INDEX file
54 #
55 PACKAGES_INDEX_CACHEFILE="/var/run/bsdconfig/packages_INDEX.cache"
56
57 ############################################################ FUNCTIONS
58
59 # f_index_initialize [$var_to_set]
60 #
61 # Read and initialize the global index. Returns success unless media cannot be
62 # initialized for any reason (e.g. user cancels media selection dialog or an
63 # error occurs). The index is sorted before being loaded into $var_to_set.
64 #
65 # NOTE: The index is processed with f_index_read() [below] after being loaded.
66 #
67 f_index_initialize()
68 {
69         local __funcname=f_index_initialize
70         local __var_to_set="${1:-PACKAGE_INDEX}"
71
72         [ "$_INDEX_INITTED" ] && return $SUCCESS
73
74         # Got any media?
75         f_media_verify || return $FAILURE
76
77         # Make sure we have a usable pkg(8) with $PKG_ABI
78         f_musthavepkg_init
79
80         # Does it move when you kick it?
81         f_device_init device_media || return $FAILURE
82
83         f_show_info "$msg_attempting_to_update_repository_catalogue"
84
85         #
86         # Generate $PACKAGESITE variable for pkg(8) based on media type
87         #
88         local __type __data __site
89         device_media get type __type
90         device_media get private __data
91         case "$__type" in
92         $DEVICE_TYPE_DIRECTORY)
93                 __site="file://$__data/packages/$PKG_ABI" ;;
94         $DEVICE_TYPE_FLOPPY)
95                 __site="file://${__data:-$MOUNTPOINT}/packages/$PKG_ABI" ;;
96         $DEVICE_TYPE_FTP)
97                 f_getvar $VAR_FTP_PATH __site
98                 __site="$__site/packages/$PKG_ABI" ;;
99         $DEVICE_TYPE_HTTP)
100                 f_getvar $VAR_HTTP_PATH __site
101                 __site="$__site/$PKG_ABI/latest" ;;
102         $DEVICE_TYPE_HTTP_PROXY)
103                 f_getvar $VAR_HTTP_PROXY_PATH __site
104                 __site="$__site/packages/$PKG_ABI" ;;
105         $DEVICE_TYPE_CDROM)
106                 __site="file://$MOUNTPOINT/packages/$PKG_ABI"
107                 export REPOS_DIR="$MOUNTPOINT/packages/repos" ;;
108         *) # UFS, DISK, CDROM, USB, DOS, NFS, etc.
109                 __site="file://$MOUNTPOINT/packages/$PKG_ABI"
110         esac
111
112         f_dprintf "PACKAGESITE=[%s]" "$__site"
113         if ! f_eval_catch $__funcname pkg \
114                 'PACKAGESITE="%s" pkg update' "$__site"
115         then
116                 f_show_err "$msg_unable_to_update_pkg_from_selected_media"
117                 f_device_shutdown device_media
118                 return $FAILURE
119         fi
120
121         #
122         # Try to get contents from validated on-disk cache
123         #
124
125         #
126         # Calculate digest used to determine if the on-disk persistant cache
127         # INDEX (containing this digest on the first line) is valid and can be
128         # used to quickly populate the environment.
129         #
130         local __sqlite_digest
131         if ! __sqlite_digest=$( md5 < "$SQLITE_REPO" 2> /dev/null ); then
132                 f_show_err "$msg_no_pkg_database_found"
133                 f_device_shutdown device_media
134                 return $FAILURE
135         fi
136
137         #
138         # Check to see if the persistant cache INDEX file exists
139         #
140         if [ -f "$PACKAGES_INDEX_CACHEFILE" ]; then
141                 #
142                 # Attempt to populate the environment with the (soon to be)
143                 # validated on-disk cache. If validation fails, fall-back to
144                 # generating a fresh cache.
145                 #
146                 if eval $__var_to_set='$(
147                         (       # Get digest as the first word on first line
148                                 read digest rest_ignored
149
150                                 #
151                                 # If the stored digest matches the calculated-
152                                 # one populate the environment from the on-disk
153                                 # cache and provide success exit status.
154                                 #
155                                 if [ "$digest" = "$__sqlite_digest" ]; then
156                                         cat
157                                         exit $SUCCESS
158                                 else
159                                         # Otherwise, return the current value
160                                         eval echo \"\$__var_to_set\"
161                                         exit $FAILURE
162                                 fi
163                         ) < "$PACKAGES_INDEX_CACHEFILE" 2> /dev/null
164                 )'; then
165                         f_show_info \
166                           "$msg_located_index_now_reading_package_data_from_it"
167                         if ! f_index_read "$__var_to_set"; then
168                                 f_show_err \
169                                         "$msg_io_or_format_error_on_index_file"
170                                 return $FAILURE
171                         fi
172                         _INDEX_INITTED=1
173                         return $SUCCESS
174                 fi
175                 # Otherwise, fall-thru to create a fresh cache from scratch
176         fi
177
178         #
179         # If we reach this point, we need to generate the data from scratch
180         #
181
182         f_show_info "$msg_generating_index_from_pkg_database"
183         eval "$__var_to_set"='$( pkg rquery -I | sort )'
184
185         #
186         # Attempt to create the persistant on-disk cache
187         #
188
189         # Create a new temporary file to write to
190         local __tmpfile
191         if f_eval_catch -dk __tmpfile $__funcname mktemp \
192                 'mktemp -t "%s"' "$pgm"
193         then
194                 # Write the temporary file contents
195                 echo "$__sqlite_digest" > "$__tmpfile"
196                 debug= f_getvar "$__var_to_set" >> "$__tmpfile"
197
198                 # Finally, move the temporary file into place
199                 case "$PACKAGES_INDEX_CACHEFILE" in
200                 */*) f_eval_catch -d $__funcname mkdir \
201                         'mkdir -p "%s"' "${PACKAGES_INDEX_CACHEFILE%/*}"
202                 esac
203                 f_eval_catch -d $__funcname mv 'mv -f "%s" "%s"' \
204                         "$__tmpfile" "$PACKAGES_INDEX_CACHEFILE"
205         fi
206
207         f_show_info "$msg_located_index_now_reading_package_data_from_it"
208         if ! f_index_read "$__var_to_set"; then
209                 f_show_err "$msg_io_or_format_error_on_index_file"
210                 return $FAILURE
211         fi
212
213         _INDEX_INITTED=1
214         return $SUCCESS
215 }
216
217 # f_index_read [$var_to_get]
218 #
219 # Process the INDEX file (contents contained in $var_to_get) and...
220 #
221 # 1. create a list ($CATEGORY_MENU_LIST) of categories with package counts
222 # 2. For convenience, create $_npkgs holding the total number of all packages
223 # 3. extract associative categories for each package into $_categories_$varpkg
224 # 4. extract runtime dependencies for each package into $_rundeps_$varpkg
225 # 5. extract a [sorted] list of categories into $PACKAGE_CATEGORIES
226 # 6. create $_npkgs_$varcat holding the total number of packages in category
227 #
228 # NOTE: $varpkg is the product of f_str2varname $package varpkg
229 # NOTE: $package is the name as it appears in the INDEX (no archive suffix)
230 # NOTE: We only show categories for which there are at least one package.
231 # NOTE: $varcat is the product of f_str2varname $category varcat
232 #
233 f_index_read()
234 {
235         local var_to_get="${1:-PACKAGE_INDEX}"
236
237         # Export variables required by awk(1) below
238         export msg_no_description_provided
239         export msg_all msg_all_desc
240         export VALID_VARNAME_CHARS
241         export msg_packages
242
243         eval "$( debug= f_getvar "$var_to_get" | awk -F'|' '
244         function _asorti(src, dest)
245         {
246                 k = nitems = 0
247
248                 # Copy src indices to dest and calculate array length
249                 for (i in src) dest[++nitems] = i
250
251                 # Sort the array of indices (dest) using insertion sort method
252                 for (i = 1; i <= nitems; k = i++)
253                 {
254                         idx = dest[i]
255                         while ((k > 0) && (dest[k] > idx))
256                         {
257                                 dest[k+1] = dest[k]
258                                 k--
259                         }
260                         dest[k+1] = idx
261                 }
262
263                 return nitems
264         }
265         function print_category(category, npkgs, desc)
266         {
267                 cat = category
268                 # Accent the category if the first page has been
269                 # cached (also acting as a visitation indicator)
270                 if ( ENVIRON["_index_page_" varcat "_1"] )
271                         cat = cat "*"
272                 printf "'\''%s'\'' '\''%s " packages "'\'' '\''%s'\''\n",
273                        cat, npkgs, desc
274         }
275         BEGIN {
276                 valid_chars = ENVIRON["VALID_VARNAME_CHARS"]
277                 default_desc = ENVIRON["msg_no_description_provided"]
278                 packages = ENVIRON["msg_packages"]
279                 tpkgs = 0
280                 prefix = ""
281         }
282         {
283                 tpkgs++
284                 varpkg = $1
285                 gsub("[^" valid_chars "]", "_", varpkg)
286                 print "_categories_" varpkg "=\"" $7 "\""
287                 split($7, pkg_categories, /[[:space:]]+/)
288                 for (pkg_category in pkg_categories)
289                         categories[pkg_categories[pkg_category]]++
290                 print "_rundeps_" varpkg "=\"" $9 "\""
291         }
292         END {
293                 print "_npkgs=" tpkgs # For convenience, total package count
294
295                 n = _asorti(categories, categories_sorted)
296
297                 # Produce package counts for each category
298                 for (i = 1; i <= n; i++)
299                 {
300                         cat = varcat = categories_sorted[i]
301                         npkgs = categories[cat]
302                         gsub("[^" valid_chars "]", "_", varcat)
303                         print "_npkgs_" varcat "=\"" npkgs "\""
304                 }
305
306                 # Create menu list and generate list of categories at same time
307                 print "CATEGORY_MENU_LIST=\""
308                 print_category(ENVIRON["msg_all"], tpkgs,
309                                ENVIRON["msg_all_desc"])
310                 category_list = ""
311                 for (i = 1; i <= n; i++)
312                 {
313                         cat = varcat = categories_sorted[i]
314                         npkgs = categories[cat]
315                         cur_prefix = tolower(substr(cat, 1, 1))
316                         if ( prefix != cur_prefix )
317                                 prefix = cur_prefix
318                         else
319                                 cat = " " cat
320                         gsub("[^" valid_chars "]", "_", varcat)
321                         desc = ENVIRON["_category_" varcat]
322                         if ( ! desc ) desc = default_desc
323                         print_category(cat, npkgs, desc)
324                         category_list = category_list " " cat
325                 }
326                 print "\""
327
328                 # Produce the list of categories (calculated in above block)
329                 sub(/^ /, "", category_list)
330                 print "PACKAGE_CATEGORIES=\"" category_list "\""
331
332         }' )" # End-Quote
333 }
334
335 # f_index_extract_pages $var_to_get $var_basename $pagesize [$category]
336 #
337 # Extracts the package INDEX ($PACKAGE_INDEX by default if/when $var_to_get is
338 # NULL; but should not be missing) into a series of sequential variables
339 # corresponding to "pages" containing up to $pagesize packages. The package
340 # INDEX data must be contained in the variable $var_to_get. The extracted pages
341 # are stored in variables ${var_basename}_# -- where "#" is a the page number.
342 # If $category is set, only packages for that category are extracted.
343 # Otherwise, if $category is "All", missing, or NULL, all packages are
344 # extracted and no filtering is done.
345 #
346 f_index_extract_pages()
347 {
348         local var_to_get="${1:-PACKAGE_INDEX}" var_basename="$2" pagesize="$3"
349         local category="$4" # Optional
350
351         eval "$(
352                 debug= f_getvar "$var_to_get" | awk -F'|' \
353                         -v cat="$category" \
354                         -v pagesize="$pagesize" \
355                         -v var_basename="$var_basename" \
356                         -v i18n_all="$msg_all" '
357                 BEGIN { n = page = 0 }
358                 /'\''/{ gsub(/'\''/, "'\''\\'\'\''") }
359                 {
360                         if ( cat !~ "(^$|^" i18n_all "$)" && $7 !~ \
361                              "(^|[[:space:]])" cat "([[:space:]]|$)" ) next
362                         starting_new_page = (n++ == (pagesize * page))
363                         if ( starting_new_page )
364                                 printf "%s%s", ( n > 1 ? "'\''\n" : "" ),
365                                        var_basename "_" ++page "='\''"
366                         printf "%s%s", ( starting_new_page ? "" : "\n" ), $0
367                 }
368                 END { if ( n > 0 ) print "'\''" }'
369         )"
370 }
371
372 # f_index_search $var_to_get $name [$var_to_set]
373 #
374 # Search the package INDEX ($PACKAGE_INDEX by default if/when $var_to_get is
375 # NULL; but should not be missing) for $name, returning the first match.
376 # Matches are strict (not regular expressions) and must match the beginning
377 # portion of the package name to be considered a match. If $var_to_set is
378 # missing or NULL, output is sent to standard output. If a match is found,
379 # returns success; otherwise failure.
380 #
381 f_index_search()
382 {
383         local __var_to_get="${1:-PACKAGE_INDEX}" __pkg_basename="$2"
384         local __var_to_set="$3"
385
386         f_dprintf "f_index_search: Searching package data (in %s) for %s" \
387                   "$__var_to_get" "$__pkg_basename"
388
389         local __pkg=
390         __pkg=$( debug= f_getvar "$__var_to_get" |
391                         awk -F'|' -v basename="$__pkg_basename" '
392                 BEGIN { n = length(basename) }
393                 substr($1, 0, n) == basename { print $1; exit }
394         ' )
395         if [ ! "$__pkg" ]; then
396                 f_dprintf "f_index_search: No packages matching %s found" \
397                           "$__pkg_basename"
398                 return $FAILURE
399         fi
400
401         f_dprintf "f_index_search: Found package %s" "$__pkg"
402         if [ "$__var_to_set" ]; then
403                 setvar "$__var_to_set" "$__pkg"
404         else
405                 echo "$__pkg"
406         fi
407         return $SUCCESS
408 }
409
410 ############################################################ MAIN
411
412 f_dprintf "%s: Successfully loaded." packages/index.subr
413
414 fi # ! $_PACKAGES_INDEX_SUBR