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1package PVE::CLIFormatter;
2
3use strict;
4use warnings;
4ac85000 5use I18N::Langinfo;
5e287f60 6use POSIX qw(strftime);
ba752c80 7use CPAN::Meta::YAML; # comes with perl-modules
4ac85000 8
84142f1d 9use PVE::JSONSchema;
4ac85000 10use PVE::PTY;
f53ad23a 11use JSON;
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12use utf8;
13use Encode;
f53ad23a 14
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15sub render_timestamp {
16 my ($epoch) = @_;
17
18 # ISO 8601 date format
19 return strftime("%F %H:%M:%S", localtime($epoch));
20}
21
22PVE::JSONSchema::register_renderer('timestamp', \&render_timestamp);
23
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24sub render_timestamp_gmt {
25 my ($epoch) = @_;
26
27 # ISO 8601 date format, standard Greenwich time zone
28 return strftime("%F %H:%M:%S", gmtime($epoch));
29}
30
31PVE::JSONSchema::register_renderer('timestamp_gmt', \&render_timestamp_gmt);
32
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33sub render_duration {
34 my ($duration_in_seconds) = @_;
35
36 my $text = '';
37 my $rest = $duration_in_seconds;
38
39 my $step = sub {
40 my ($unit, $unitlength) = @_;
41
42 if ((my $v = int($rest/$unitlength)) > 0) {
43 $text .= " " if length($text);
44 $text .= "${v}${unit}";
45 $rest -= $v * $unitlength;
46 }
47 };
48
49 $step->('w', 7*24*3600);
50 $step->('d', 24*3600);
51 $step->('h', 3600);
52 $step->('m', 60);
53 $step->('s', 1);
54
55 return $text;
56}
57
58PVE::JSONSchema::register_renderer('duration', \&render_duration);
59
60sub render_fraction_as_percentage {
61 my ($fraction) = @_;
62
63 return sprintf("%.2f%%", $fraction*100);
64}
65
66PVE::JSONSchema::register_renderer(
67 'fraction_as_percentage', \&render_fraction_as_percentage);
68
69sub render_bytes {
70 my ($value) = @_;
71
72 my @units = qw(B KiB MiB GiB TiB PiB);
73
74 my $max_unit = 0;
75 if ($value > 1023) {
76 $max_unit = int(log($value)/log(1024));
77 $value /= 1024**($max_unit);
78 }
79
80 return sprintf "%.2f $units[$max_unit]", $value;
81}
82
83PVE::JSONSchema::register_renderer('bytes', \&render_bytes);
84
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85sub render_yaml {
86 my ($value) = @_;
87
88 my $data = CPAN::Meta::YAML::Dump($value);
89 $data =~ s/^---[\n\s]//; # remove yaml marker
90
91 return $data;
92}
93
94PVE::JSONSchema::register_renderer('yaml', \&render_yaml);
95
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96sub query_terminal_options {
97 my ($options) = @_;
98
99 $options //= {};
100
101 if (-t STDOUT) {
102 ($options->{columns}) = PVE::PTY::tcgetsize(*STDOUT);
103 }
104
105 $options->{encoding} = I18N::Langinfo::langinfo(I18N::Langinfo::CODESET());
106
107 $options->{utf8} = 1 if $options->{encoding} eq 'UTF-8';
108
109 return $options;
110}
111
f53ad23a 112sub data_to_text {
b01a09e7 113 my ($data, $propdef, $options, $terminal_opts) = @_;
f53ad23a 114
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115 return '' if !defined($data);
116
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117 $terminal_opts //= {};
118
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119 my $human_readable = $options->{'human-readable'} // 1;
120
121 if ($human_readable && defined($propdef)) {
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122 if (my $type = $propdef->{type}) {
123 if ($type eq 'boolean') {
124 return $data ? 1 : 0;
125 }
126 }
127 if (!defined($data) && defined($propdef->{default})) {
128 return "($propdef->{default})";
129 }
130 if (defined(my $renderer = $propdef->{renderer})) {
131 my $code = PVE::JSONSchema::get_renderer($renderer);
132 die "internal error: unknown renderer '$renderer'" if !$code;
b01a09e7 133 return $code->($data, $options, $terminal_opts);
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134 }
135 }
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136
137 if (my $class = ref($data)) {
84142f1d 138 return to_json($data, { canonical => 1 });
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139 } else {
140 return "$data";
141 }
142}
143
144# prints a formatted table with a title row.
145# $data - the data to print (array of objects)
146# $returnprops -json schema property description
147# $props_to_print - ordered list of properties to print
0c22b00c 148# $options
2e2a4502 149# - sort_key: can be used to sort after a specific column, if it isn't set we sort
f53ad23a 150# after the leftmost column (with no undef value in $data) this can be
0c22b00c 151# turned off by passing 0 as sort_key
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152# - noborder: print without asciiart border
153# - noheader: print without table header
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154# - columns: limit output width (if > 0)
155# - utf8: use utf8 characters for table delimiters
156
f53ad23a 157sub print_text_table {
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158 my ($data, $returnprops, $props_to_print, $options, $terminal_opts) = @_;
159
160 $terminal_opts //= query_terminal_options({});
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161
162 my $sort_key = $options->{sort_key};
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163 my $border = !$options->{noborder};
164 my $header = !$options->{noheader};
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165
166 my $columns = $terminal_opts->{columns};
167 my $utf8 = $terminal_opts->{utf8};
168 my $encoding = $terminal_opts->{encoding} // 'UTF-8';
f53ad23a 169
2e2a4502 170 $sort_key //= $props_to_print->[0];
41d554d9 171
2e2a4502 172 if (defined($sort_key) && $sort_key ne 0) {
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173 my $type = $returnprops->{$sort_key}->{type} // 'string';
174 if ($type eq 'integer' || $type eq 'number') {
175 @$data = sort { $a->{$sort_key} <=> $b->{$sort_key} } @$data;
176 } else {
177 @$data = sort { $a->{$sort_key} cmp $b->{$sort_key} } @$data;
178 }
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179 }
180
181 my $colopts = {};
793ad69b 182
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183 my $borderstring_m = '';
184 my $borderstring_b = '';
185 my $borderstring_t = '';
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186 my $formatstring = '';
187
188 my $column_count = scalar(@$props_to_print);
189
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190 my $tabledata = [];
191
192 foreach my $entry (@$data) {
193
194 my $height = 1;
195 my $rowdata = {};
196
197 for (my $i = 0; $i < $column_count; $i++) {
198 my $prop = $props_to_print->[$i];
199 my $propinfo = $returnprops->{$prop} // {};
200
b01a09e7 201 my $text = data_to_text($entry->{$prop}, $propinfo, $options, $terminal_opts);
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202 my $lines = [ split(/\n/, $text) ];
203 my $linecount = scalar(@$lines);
204 $height = $linecount if $linecount > $height;
205
206 my $width = 0;
207 foreach my $line (@$lines) {
208 my $len = length($line);
209 $width = $len if $len > $width;
210 }
211
212 $rowdata->{$prop} = {
213 lines => $lines,
214 width => $width,
215 };
216 }
217
218 push @$tabledata, {
219 height => $height,
220 rowdata => $rowdata,
221 };
222 }
223
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224 for (my $i = 0; $i < $column_count; $i++) {
225 my $prop = $props_to_print->[$i];
226 my $propinfo = $returnprops->{$prop} // {};
227
228 my $title = $propinfo->{title} // $prop;
229 my $cutoff = $propinfo->{print_width} // $propinfo->{maxLength};
230
231 # calculate maximal print width and cutoff
232 my $titlelen = length($title);
233
234 my $longest = $titlelen;
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235 foreach my $coldata (@$tabledata) {
236 my $rowdata = $coldata->{rowdata}->{$prop};
237 $longest = $rowdata->{width} if $rowdata->{width} > $longest;
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238 }
239 $cutoff = $longest if !defined($cutoff) || $cutoff > $longest;
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240
241 $colopts->{$prop} = {
242 title => $title,
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243 cutoff => $cutoff,
244 };
245
793ad69b 246 if ($border) {
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247 if ($i == 0 && ($column_count == 1)) {
248 if ($utf8) {
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249 $formatstring .= "│ %-${cutoff}s │";
250 $borderstring_t .= "┌─" . ('─' x $cutoff) . "─┐";
251 $borderstring_m .= "├─" . ('─' x $cutoff) . "─┤";
252 $borderstring_b .= "└─" . ('─' x $cutoff) . "─┘";
eb1c51c2 253 } else {
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254 $formatstring .= "| %-${cutoff}s |";
255 $borderstring_m .= "+-" . ('-' x $cutoff) . "-+";
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256 }
257 } elsif ($i == 0) {
258 if ($utf8) {
259 $formatstring .= "│ %-${cutoff}s ";
260 $borderstring_t .= "┌─" . ('─' x $cutoff) . '─';
261 $borderstring_m .= "├─" . ('─' x $cutoff) . '─';
262 $borderstring_b .= "└─" . ('─' x $cutoff) . '─';
263 } else {
264 $formatstring .= "| %-${cutoff}s ";
265 $borderstring_m .= "+-" . ('-' x $cutoff) . '-';
266 }
267 } elsif ($i == ($column_count - 1)) {
268 if ($utf8) {
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269 $formatstring .= "│ %-${cutoff}s │";
270 $borderstring_t .= "┬─" . ('─' x $cutoff) . "─┐";
271 $borderstring_m .= "┼─" . ('─' x $cutoff) . "─┤";
272 $borderstring_b .= "┴─" . ('─' x $cutoff) . "─┘";
eb1c51c2 273 } else {
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274 $formatstring .= "| %-${cutoff}s |";
275 $borderstring_m .= "+-" . ('-' x $cutoff) . "-+";
eb1c51c2 276 }
793ad69b 277 } else {
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278 if ($utf8) {
279 $formatstring .= "│ %-${cutoff}s ";
280 $borderstring_t .= "┬─" . ('─' x $cutoff) . '─';
281 $borderstring_m .= "┼─" . ('─' x $cutoff) . '─';
282 $borderstring_b .= "┴─" . ('─' x $cutoff) . '─';
283 } else {
284 $formatstring .= "| %-${cutoff}s ";
285 $borderstring_m .= "+-" . ('-' x $cutoff) . '-';
286 }
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287 }
288 } else {
289 # skip alignment and cutoff on last column
41d554d9 290 $formatstring .= ($i == ($column_count - 1)) ? "%s" : "%-${cutoff}s ";
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291 }
292 }
293
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294 $borderstring_t = $borderstring_m if !length($borderstring_t);
295 $borderstring_b = $borderstring_m if !length($borderstring_b);
296
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297 my $writeln = sub {
298 my ($text) = @_;
299
300 if ($columns) {
301 print encode($encoding, substr($text, 0, $columns) . "\n");
302 } else {
303 print encode($encoding, $text) . "\n";
304 }
305 };
306
307 $writeln->($borderstring_t) if $border;
793ad69b 308
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309 if ($header) {
310 my $text = sprintf $formatstring, map { $colopts->{$_}->{title} } @$props_to_print;
311 $writeln->($text);
312 }
313
314 for (my $i = 0; $i < scalar(@$tabledata); $i++) {
315 my $coldata = $tabledata->[$i];
316
317 $writeln->($borderstring_m) if $border && ($i != 0 || $header);
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318
319 for (my $i = 0; $i < $coldata->{height}; $i++) {
320
352b7a14 321 my $text = sprintf $formatstring, map {
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322 substr($coldata->{rowdata}->{$_}->{lines}->[$i] // '', 0, $colopts->{$_}->{cutoff});
323 } @$props_to_print;
324
325 $writeln->($text);
326 }
f53ad23a 327 }
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328
329 $writeln->($borderstring_b) if $border;
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330}
331
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332sub extract_properties_to_print {
333 my ($propdef) = @_;
334
335 my $required = [];
336 my $optional = [];
337
338 foreach my $key (keys %$propdef) {
339 my $prop = $propdef->{$key};
340 if ($prop->{optional}) {
341 push @$optional, $key;
342 } else {
343 push @$required, $key;
344 }
345 }
346
347 return [ sort(@$required), sort(@$optional) ];
348}
349
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350# prints the result of an API GET call returning an array as a table.
351# takes formatting information from the results property of the call
352# if $props_to_print is provided, prints only those columns. otherwise
353# takes all fields of the results property, with a fallback
354# to all fields occuring in items of $data.
355sub print_api_list {
b01a09e7 356 my ($data, $result_schema, $props_to_print, $options, $terminal_opts) = @_;
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357
358 die "can only print object lists\n"
359 if !($result_schema->{type} eq 'array' && $result_schema->{items}->{type} eq 'object');
360
361 my $returnprops = $result_schema->{items}->{properties};
362
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363 $props_to_print = extract_properties_to_print($returnprops)
364 if !defined($props_to_print);
365
366 if (!scalar(@$props_to_print)) {
367 my $all_props = {};
368 foreach my $obj (@$data) {
369 foreach my $key (keys %$obj) {
370 $all_props->{$key} = 1;
f53ad23a 371 }
f53ad23a 372 }
c5adc5f9 373 $props_to_print = [ sort keys %{$all_props} ];
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374 }
375
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376 die "unable to detect list properties\n" if !scalar(@$props_to_print);
377
b01a09e7 378 print_text_table($data, $returnprops, $props_to_print, $options, $terminal_opts);
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379}
380
381sub print_api_result {
b01a09e7 382 my ($data, $result_schema, $props_to_print, $options, $terminal_opts) = @_;
0c22b00c 383
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384 return if $options->{quiet};
385
b01a09e7 386 $terminal_opts //= query_terminal_options({});
f53ad23a 387
4cbcd138 388 my $format = $options->{'output-format'} // 'text';
f0bcf4d4 389
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390 return if $result_schema->{type} eq 'null';
391
392 if ($format eq 'json') {
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393 # Note: we always use utf8 encoding for json format
394 print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1 }) . "\n";
395 } elsif ($format eq 'json-pretty') {
43b104c4 396 # Note: we always use utf8 encoding for json format
f53ad23a 397 print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1, pretty => 1 });
cd6591d3 398 } elsif ($format eq 'text') {
43b104c4 399 my $encoding = $options->{encoding} // 'UTF-8';
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400 my $type = $result_schema->{type};
401 if ($type eq 'object') {
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402 $props_to_print = extract_properties_to_print($result_schema->{properties})
403 if !defined($props_to_print);
404 $props_to_print = [ sort keys %$data ] if !scalar(@$props_to_print);
2a174d2a 405 my $kvstore = [];
f53ad23a 406 foreach my $key (@$props_to_print) {
a05db8b5 407 next if !defined($data->{$key});
b01a09e7 408 push @$kvstore, { key => $key, value => data_to_text($data->{$key}, $result_schema->{properties}->{$key}, $options, $terminal_opts) };
f53ad23a 409 }
2a174d2a 410 my $schema = { type => 'array', items => { type => 'object' }};
b01a09e7 411 print_api_list($kvstore, $schema, ['key', 'value'], $options, $terminal_opts);
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412 } elsif ($type eq 'array') {
413 return if !scalar(@$data);
414 my $item_type = $result_schema->{items}->{type};
415 if ($item_type eq 'object') {
b01a09e7 416 print_api_list($data, $result_schema, $props_to_print, $options, $terminal_opts);
f53ad23a 417 } else {
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418 my $kvstore = [];
419 foreach my $value (@$data) {
420 push @$kvstore, { value => $value };
f53ad23a 421 }
c850b998 422 my $schema = { type => 'array', items => { type => 'object', properties => { value => $result_schema->{items} }}};
b01a09e7 423 print_api_list($kvstore, $schema, ['value'], { %$options, noheader => 1 }, $terminal_opts);
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424 }
425 } else {
43b104c4 426 print encode($encoding, "$data\n");
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427 }
428 } else {
429 die "internal error: unknown output format"; # should not happen
430 }
431}
432
4331;