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1 | package PVE::CLIFormatter; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
6 | use I18N::Langinfo; | |
7 | use POSIX qw(strftime); | |
8 | use CPAN::Meta::YAML; # comes with perl-modules | |
9 | ||
10 | use PVE::JSONSchema; | |
11 | use PVE::PTY; | |
12 | ||
13 | use JSON; | |
14 | use utf8; | |
15 | use Encode; | |
16 | ||
17 | sub render_timestamp { | |
18 | my ($epoch) = @_; | |
19 | ||
20 | # ISO 8601 date format | |
21 | return strftime("%F %H:%M:%S", localtime($epoch)); | |
22 | } | |
23 | ||
24 | PVE::JSONSchema::register_renderer('timestamp', \&render_timestamp); | |
25 | ||
26 | sub render_timestamp_gmt { | |
27 | my ($epoch) = @_; | |
28 | ||
29 | # ISO 8601 date format, standard Greenwich time zone | |
30 | return strftime("%F %H:%M:%S", gmtime($epoch)); | |
31 | } | |
32 | ||
33 | PVE::JSONSchema::register_renderer('timestamp_gmt', \&render_timestamp_gmt); | |
34 | ||
35 | sub render_duration { | |
36 | my ($duration_in_seconds) = @_; | |
37 | ||
38 | my $text = ''; | |
39 | my $rest = $duration_in_seconds; | |
40 | ||
41 | my $step = sub { | |
42 | my ($unit, $unitlength) = @_; | |
43 | ||
44 | if ((my $v = int($rest/$unitlength)) > 0) { | |
45 | $text .= " " if length($text); | |
46 | $text .= "${v}${unit}"; | |
47 | $rest -= $v * $unitlength; | |
48 | } | |
49 | }; | |
50 | ||
51 | $step->('w', 7*24*3600); | |
52 | $step->('d', 24*3600); | |
53 | $step->('h', 3600); | |
54 | $step->('m', 60); | |
55 | $step->('s', 1); | |
56 | ||
57 | return $text; | |
58 | } | |
59 | ||
60 | PVE::JSONSchema::register_renderer('duration', \&render_duration); | |
61 | ||
62 | sub render_fraction_as_percentage { | |
63 | my ($fraction) = @_; | |
64 | ||
65 | return sprintf("%.2f%%", $fraction*100); | |
66 | } | |
67 | ||
68 | PVE::JSONSchema::register_renderer( | |
69 | 'fraction_as_percentage', \&render_fraction_as_percentage); | |
70 | ||
71 | sub render_bytes { | |
72 | my ($value) = @_; | |
73 | ||
74 | my @units = qw(B KiB MiB GiB TiB PiB); | |
75 | ||
76 | my $max_unit = 0; | |
77 | if ($value > 1023) { | |
78 | $max_unit = int(log($value)/log(1024)); | |
79 | $value /= 1024**($max_unit); | |
80 | } | |
81 | my $unit = $units[$max_unit]; | |
82 | return sprintf "%.2f $unit", $value; | |
83 | } | |
84 | ||
85 | PVE::JSONSchema::register_renderer('bytes', \&render_bytes); | |
86 | ||
87 | sub render_yaml { | |
88 | my ($value) = @_; | |
89 | ||
90 | my $data = CPAN::Meta::YAML::Dump($value); | |
91 | $data =~ s/^---[\n\s]//; # remove yaml marker | |
92 | ||
93 | return $data; | |
94 | } | |
95 | ||
96 | PVE::JSONSchema::register_renderer('yaml', \&render_yaml); | |
97 | ||
98 | sub query_terminal_options { | |
99 | my ($options) = @_; | |
100 | ||
101 | $options //= {}; | |
102 | ||
103 | if (-t STDOUT) { | |
104 | ($options->{columns}) = PVE::PTY::tcgetsize(*STDOUT); | |
105 | } | |
106 | ||
107 | $options->{encoding} = I18N::Langinfo::langinfo(I18N::Langinfo::CODESET()); | |
108 | ||
109 | $options->{utf8} = 1 if $options->{encoding} eq 'UTF-8'; | |
110 | ||
111 | return $options; | |
112 | } | |
113 | ||
114 | sub data_to_text { | |
115 | my ($data, $propdef, $options, $terminal_opts) = @_; | |
116 | ||
117 | return '' if !defined($data); | |
118 | ||
119 | $terminal_opts //= {}; | |
120 | ||
121 | my $human_readable = $options->{'human-readable'} // 1; | |
122 | ||
123 | if ($human_readable && defined($propdef)) { | |
124 | if (my $type = $propdef->{type}) { | |
125 | if ($type eq 'boolean') { | |
126 | return $data ? 1 : 0; | |
127 | } | |
128 | } | |
129 | if (!defined($data) && defined($propdef->{default})) { | |
130 | return "($propdef->{default})"; | |
131 | } | |
132 | if (defined(my $renderer = $propdef->{renderer})) { | |
133 | my $code = PVE::JSONSchema::get_renderer($renderer); | |
134 | die "internal error: unknown renderer '$renderer'" if !$code; | |
135 | return $code->($data, $options, $terminal_opts); | |
136 | } | |
137 | } | |
138 | ||
139 | if (my $class = ref($data)) { | |
140 | # JSON::PP::Boolean requires allow_nonref | |
141 | return to_json($data, { allow_nonref => 1, canonical => 1 }); | |
142 | } else { | |
143 | return "$data"; | |
144 | } | |
145 | } | |
146 | ||
147 | # prints a formatted table with a title row. | |
148 | # $data - the data to print (array of objects) | |
149 | # $returnprops -json schema property description | |
150 | # $props_to_print - ordered list of properties to print | |
151 | # $options | |
152 | # - sort_key: can be used to sort after a specific column, if it isn't set we sort | |
153 | # after the leftmost column (with no undef value in $data) this can be | |
154 | # turned off by passing 0 as sort_key | |
155 | # - noborder: print without asciiart border | |
156 | # - noheader: print without table header | |
157 | # - columns: limit output width (if > 0) | |
158 | # - utf8: use utf8 characters for table delimiters | |
159 | ||
160 | sub print_text_table { | |
161 | my ($data, $returnprops, $props_to_print, $options, $terminal_opts) = @_; | |
162 | ||
163 | $terminal_opts //= query_terminal_options({}); | |
164 | ||
165 | my $sort_key = $options->{sort_key}; | |
166 | my $border = !$options->{noborder}; | |
167 | my $header = !$options->{noheader}; | |
168 | ||
169 | my $columns = $terminal_opts->{columns}; | |
170 | my $utf8 = $terminal_opts->{utf8}; | |
171 | my $encoding = $terminal_opts->{encoding} // 'UTF-8'; | |
172 | ||
173 | $sort_key //= $props_to_print->[0]; | |
174 | ||
175 | if (defined($sort_key) && $sort_key ne 0) { | |
176 | my $type = $returnprops->{$sort_key}->{type} // 'string'; | |
177 | if ($type eq 'integer' || $type eq 'number') { | |
178 | @$data = sort { $a->{$sort_key} <=> $b->{$sort_key} } @$data; | |
179 | } else { | |
180 | @$data = sort { $a->{$sort_key} cmp $b->{$sort_key} } @$data; | |
181 | } | |
182 | } | |
183 | ||
184 | my $colopts = {}; | |
185 | ||
186 | my $borderstring_m = ''; | |
187 | my $borderstring_b = ''; | |
188 | my $borderstring_t = ''; | |
189 | my $formatstring = ''; | |
190 | ||
191 | my $column_count = scalar(@$props_to_print); | |
192 | ||
193 | my $tabledata = []; | |
194 | ||
195 | foreach my $entry (@$data) { | |
196 | ||
197 | my $height = 1; | |
198 | my $rowdata = {}; | |
199 | ||
200 | for (my $i = 0; $i < $column_count; $i++) { | |
201 | my $prop = $props_to_print->[$i]; | |
202 | my $propinfo = $returnprops->{$prop} // {}; | |
203 | ||
204 | my $text = data_to_text($entry->{$prop}, $propinfo, $options, $terminal_opts); | |
205 | my $lines = [ split(/\n/, $text) ]; | |
206 | my $linecount = scalar(@$lines); | |
207 | $height = $linecount if $linecount > $height; | |
208 | ||
209 | my $width = 0; | |
210 | foreach my $line (@$lines) { | |
211 | my $len = length($line); | |
212 | $width = $len if $len > $width; | |
213 | } | |
214 | ||
215 | $width = ($width =~ m/^(\d+)$/) ? int($1) : 0; # untaint int | |
216 | ||
217 | $rowdata->{$prop} = { | |
218 | lines => $lines, | |
219 | width => $width, | |
220 | }; | |
221 | } | |
222 | ||
223 | push @$tabledata, { | |
224 | height => $height, | |
225 | rowdata => $rowdata, | |
226 | }; | |
227 | } | |
228 | ||
229 | for (my $i = 0; $i < $column_count; $i++) { | |
230 | my $prop = $props_to_print->[$i]; | |
231 | my $propinfo = $returnprops->{$prop} // {}; | |
232 | my $type = $propinfo->{type} // 'string'; | |
233 | my $alignstr = ($type eq 'integer' || $type eq 'number') ? '' : '-'; | |
234 | ||
235 | my $title = $propinfo->{title} // $prop; | |
236 | my $cutoff = $propinfo->{print_width} // $propinfo->{maxLength}; | |
237 | ||
238 | # calculate maximal print width and cutoff | |
239 | my $titlelen = length($title); | |
240 | ||
241 | my $longest = $titlelen; | |
242 | foreach my $coldata (@$tabledata) { | |
243 | my $rowdata = $coldata->{rowdata}->{$prop}; | |
244 | $longest = $rowdata->{width} if $rowdata->{width} > $longest; | |
245 | } | |
246 | $cutoff = $longest if !defined($cutoff) || $cutoff > $longest; | |
247 | ||
248 | $colopts->{$prop} = { | |
249 | title => $title, | |
250 | cutoff => $cutoff, | |
251 | }; | |
252 | ||
253 | if ($border) { | |
254 | if ($i == 0 && ($column_count == 1)) { | |
255 | if ($utf8) { | |
256 | $formatstring .= "│ %$alignstr${cutoff}s │"; | |
257 | $borderstring_t .= "┌─" . ('─' x $cutoff) . "─┐"; | |
258 | $borderstring_m .= "├─" . ('─' x $cutoff) . "─┤"; | |
259 | $borderstring_b .= "└─" . ('─' x $cutoff) . "─┘"; | |
260 | } else { | |
261 | $formatstring .= "| %$alignstr${cutoff}s |"; | |
262 | $borderstring_m .= "+-" . ('-' x $cutoff) . "-+"; | |
263 | } | |
264 | } elsif ($i == 0) { | |
265 | if ($utf8) { | |
266 | $formatstring .= "│ %$alignstr${cutoff}s "; | |
267 | $borderstring_t .= "┌─" . ('─' x $cutoff) . '─'; | |
268 | $borderstring_m .= "├─" . ('─' x $cutoff) . '─'; | |
269 | $borderstring_b .= "└─" . ('─' x $cutoff) . '─'; | |
270 | } else { | |
271 | $formatstring .= "| %$alignstr${cutoff}s "; | |
272 | $borderstring_m .= "+-" . ('-' x $cutoff) . '-'; | |
273 | } | |
274 | } elsif ($i == ($column_count - 1)) { | |
275 | if ($utf8) { | |
276 | $formatstring .= "│ %$alignstr${cutoff}s │"; | |
277 | $borderstring_t .= "┬─" . ('─' x $cutoff) . "─┐"; | |
278 | $borderstring_m .= "┼─" . ('─' x $cutoff) . "─┤"; | |
279 | $borderstring_b .= "┴─" . ('─' x $cutoff) . "─┘"; | |
280 | } else { | |
281 | $formatstring .= "| %$alignstr${cutoff}s |"; | |
282 | $borderstring_m .= "+-" . ('-' x $cutoff) . "-+"; | |
283 | } | |
284 | } else { | |
285 | if ($utf8) { | |
286 | $formatstring .= "│ %$alignstr${cutoff}s "; | |
287 | $borderstring_t .= "┬─" . ('─' x $cutoff) . '─'; | |
288 | $borderstring_m .= "┼─" . ('─' x $cutoff) . '─'; | |
289 | $borderstring_b .= "┴─" . ('─' x $cutoff) . '─'; | |
290 | } else { | |
291 | $formatstring .= "| %$alignstr${cutoff}s "; | |
292 | $borderstring_m .= "+-" . ('-' x $cutoff) . '-'; | |
293 | } | |
294 | } | |
295 | } else { | |
296 | # skip alignment and cutoff on last column | |
297 | $formatstring .= ($i == ($column_count - 1)) ? "%s" : "%$alignstr${cutoff}s "; | |
298 | } | |
299 | } | |
300 | ||
301 | $borderstring_t = $borderstring_m if !length($borderstring_t); | |
302 | $borderstring_b = $borderstring_m if !length($borderstring_b); | |
303 | ||
304 | my $writeln = sub { | |
305 | my ($text) = @_; | |
306 | ||
307 | if ($columns) { | |
308 | print encode($encoding, substr($text, 0, $columns) . "\n"); | |
309 | } else { | |
310 | print encode($encoding, $text) . "\n"; | |
311 | } | |
312 | }; | |
313 | ||
314 | $writeln->($borderstring_t) if $border; | |
315 | ||
316 | if ($header) { | |
317 | my $text = sprintf $formatstring, map { $colopts->{$_}->{title} } @$props_to_print; | |
318 | $writeln->($text); | |
319 | } | |
320 | ||
321 | for (my $i = 0; $i < scalar(@$tabledata); $i++) { | |
322 | my $coldata = $tabledata->[$i]; | |
323 | ||
324 | $writeln->($borderstring_m) if $border && ($i != 0 || $header); | |
325 | ||
326 | for (my $i = 0; $i < $coldata->{height}; $i++) { | |
327 | ||
328 | my $text = sprintf $formatstring, map { | |
329 | substr($coldata->{rowdata}->{$_}->{lines}->[$i] // '', 0, $colopts->{$_}->{cutoff}); | |
330 | } @$props_to_print; | |
331 | ||
332 | $writeln->($text); | |
333 | } | |
334 | } | |
335 | ||
336 | $writeln->($borderstring_b) if $border; | |
337 | } | |
338 | ||
339 | sub extract_properties_to_print { | |
340 | my ($propdef) = @_; | |
341 | ||
342 | my $required = []; | |
343 | my $optional = []; | |
344 | ||
345 | foreach my $key (keys %$propdef) { | |
346 | my $prop = $propdef->{$key}; | |
347 | if ($prop->{optional}) { | |
348 | push @$optional, $key; | |
349 | } else { | |
350 | push @$required, $key; | |
351 | } | |
352 | } | |
353 | ||
354 | return [ sort(@$required), sort(@$optional) ]; | |
355 | } | |
356 | ||
357 | # prints the result of an API GET call returning an array as a table. | |
358 | # takes formatting information from the results property of the call | |
359 | # if $props_to_print is provided, prints only those columns. otherwise | |
360 | # takes all fields of the results property, with a fallback | |
361 | # to all fields occurring in items of $data. | |
362 | sub print_api_list { | |
363 | my ($data, $result_schema, $props_to_print, $options, $terminal_opts) = @_; | |
364 | ||
365 | die "can only print object lists\n" | |
366 | if !($result_schema->{type} eq 'array' && $result_schema->{items}->{type} eq 'object'); | |
367 | ||
368 | my $returnprops = $result_schema->{items}->{properties}; | |
369 | ||
370 | $props_to_print = extract_properties_to_print($returnprops) | |
371 | if !defined($props_to_print); | |
372 | ||
373 | if (!scalar(@$props_to_print)) { | |
374 | my $all_props = {}; | |
375 | foreach my $obj (@$data) { | |
376 | foreach my $key (keys %$obj) { | |
377 | $all_props->{$key} = 1; | |
378 | } | |
379 | } | |
380 | $props_to_print = [ sort keys %{$all_props} ]; | |
381 | } | |
382 | ||
383 | die "unable to detect list properties\n" if !scalar(@$props_to_print); | |
384 | ||
385 | print_text_table($data, $returnprops, $props_to_print, $options, $terminal_opts); | |
386 | } | |
387 | ||
388 | my $guess_type = sub { | |
389 | my $data = shift; | |
390 | ||
391 | return 'null' if !defined($data); | |
392 | ||
393 | my $class = ref($data); | |
394 | return 'string' if !$class; | |
395 | ||
396 | if ($class eq 'HASH') { | |
397 | return 'object'; | |
398 | } elsif ($class eq 'ARRAY') { | |
399 | return 'array'; | |
400 | } else { | |
401 | return 'string'; # better than nothing | |
402 | } | |
403 | }; | |
404 | ||
405 | sub print_api_result { | |
406 | my ($data, $result_schema, $props_to_print, $options, $terminal_opts) = @_; | |
407 | ||
408 | return if $options->{quiet}; | |
409 | ||
410 | $terminal_opts //= query_terminal_options({}); | |
411 | ||
412 | my $format = $options->{'output-format'} // 'text'; | |
413 | ||
414 | if ($result_schema && defined($result_schema->{type})) { | |
415 | return if $result_schema->{type} eq 'null'; | |
416 | return if $result_schema->{optional} && !defined($data); | |
417 | } else { | |
418 | my $type = $guess_type->($data); | |
419 | $result_schema = { type => $type }; | |
420 | $result_schema->{items} = { type => $guess_type->($data->[0]) } if $type eq 'array'; | |
421 | } | |
422 | ||
423 | if ($format eq 'yaml') { | |
424 | print encode('UTF-8', CPAN::Meta::YAML::Dump($data)); | |
425 | } elsif ($format eq 'json') { | |
426 | # Note: we always use utf8 encoding for json format | |
427 | print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1 }) . "\n"; | |
428 | } elsif ($format eq 'json-pretty') { | |
429 | # Note: we always use utf8 encoding for json format | |
430 | print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1, pretty => 1 }); | |
431 | } elsif ($format eq 'text') { | |
432 | my $encoding = $options->{encoding} // 'UTF-8'; | |
433 | my $type = $result_schema->{type}; | |
434 | if ($type eq 'object') { | |
435 | $props_to_print = extract_properties_to_print($result_schema->{properties}) | |
436 | if !defined($props_to_print); | |
437 | $props_to_print = [ sort keys %$data ] if !scalar(@$props_to_print); | |
438 | my $kvstore = []; | |
439 | foreach my $key (@$props_to_print) { | |
440 | next if !defined($data->{$key}); | |
441 | push @$kvstore, { key => $key, value => data_to_text($data->{$key}, $result_schema->{properties}->{$key}, $options, $terminal_opts) }; | |
442 | } | |
443 | my $schema = { type => 'array', items => { type => 'object' }}; | |
444 | print_api_list($kvstore, $schema, ['key', 'value'], $options, $terminal_opts); | |
445 | } elsif ($type eq 'array') { | |
446 | return if !scalar(@$data); | |
447 | my $item_type = $result_schema->{items}->{type}; | |
448 | if ($item_type eq 'object') { | |
449 | print_api_list($data, $result_schema, $props_to_print, $options, $terminal_opts); | |
450 | } else { | |
451 | my $kvstore = []; | |
452 | foreach my $value (@$data) { | |
453 | push @$kvstore, { value => $value }; | |
454 | } | |
455 | my $schema = { type => 'array', items => { type => 'object', properties => { value => $result_schema->{items} }}}; | |
456 | print_api_list($kvstore, $schema, ['value'], { %$options, noheader => 1 }, $terminal_opts); | |
457 | } | |
458 | } else { | |
459 | print encode($encoding, "$data\n"); | |
460 | } | |
461 | } else { | |
462 | die "internal error: unknown output format"; # should not happen | |
463 | } | |
464 | } | |
465 | ||
466 | sub print_api_result_plain { | |
467 | my ($data, $result_schema, $props_to_print, $options) = @_; | |
468 | ||
469 | # avoid borders and header, ignore terminal width | |
470 | $options = $options ? { %$options } : {}; # copy | |
471 | ||
472 | $options->{noheader} //= 1; | |
473 | $options->{noborder} //= 1; | |
474 | ||
475 | print_api_result($data, $result_schema, $props_to_print, $options, {}); | |
476 | } | |
477 | ||
478 | 1; |