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1 | package PVE::CLIFormatter; | |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use I18N::Langinfo; | |
6 | ||
7 | use PVE::JSONSchema; | |
8 | use PVE::PTY; | |
9 | use JSON; | |
10 | use utf8; | |
11 | use Encode; | |
12 | ||
13 | sub query_terminal_options { | |
14 | my ($options) = @_; | |
15 | ||
16 | $options //= {}; | |
17 | ||
18 | if (-t STDOUT) { | |
19 | ($options->{columns}) = PVE::PTY::tcgetsize(*STDOUT); | |
20 | } | |
21 | ||
22 | $options->{encoding} = I18N::Langinfo::langinfo(I18N::Langinfo::CODESET()); | |
23 | ||
24 | $options->{utf8} = 1 if $options->{encoding} eq 'UTF-8'; | |
25 | ||
26 | return $options; | |
27 | } | |
28 | ||
29 | sub data_to_text { | |
30 | my ($data, $propdef) = @_; | |
31 | ||
32 | return '' if !defined($data); | |
33 | ||
34 | if (defined($propdef)) { | |
35 | if (my $type = $propdef->{type}) { | |
36 | if ($type eq 'boolean') { | |
37 | return $data ? 1 : 0; | |
38 | } | |
39 | } | |
40 | if (!defined($data) && defined($propdef->{default})) { | |
41 | return "($propdef->{default})"; | |
42 | } | |
43 | if (defined(my $renderer = $propdef->{renderer})) { | |
44 | my $code = PVE::JSONSchema::get_renderer($renderer); | |
45 | die "internal error: unknown renderer '$renderer'" if !$code; | |
46 | return $code->($data); | |
47 | } | |
48 | } | |
49 | ||
50 | if (my $class = ref($data)) { | |
51 | return to_json($data, { canonical => 1 }); | |
52 | } else { | |
53 | return "$data"; | |
54 | } | |
55 | } | |
56 | ||
57 | # prints a formatted table with a title row. | |
58 | # $data - the data to print (array of objects) | |
59 | # $returnprops -json schema property description | |
60 | # $props_to_print - ordered list of properties to print | |
61 | # $options | |
62 | # - sort_key: can be used to sort after a column, if it isn't set we sort | |
63 | # after the leftmost column (with no undef value in $data) this can be | |
64 | # turned off by passing 0 as sort_key | |
65 | # - border: print with/without table header and asciiart border | |
66 | # - columns: limit output width (if > 0) | |
67 | # - utf8: use utf8 characters for table delimiters | |
68 | ||
69 | sub print_text_table { | |
70 | my ($data, $returnprops, $props_to_print, $options) = @_; | |
71 | ||
72 | my $sort_key = $options->{sort_key}; | |
73 | my $border = $options->{border}; | |
74 | my $columns = $options->{columns}; | |
75 | my $utf8 = $options->{utf8}; | |
76 | my $encoding = $options->{encoding} // 'UTF-8'; | |
77 | ||
78 | if (!defined($sort_key) || $sort_key eq 0) { | |
79 | $sort_key = $props_to_print->[0]; | |
80 | } | |
81 | ||
82 | if (defined($sort_key)) { | |
83 | my $type = $returnprops->{$sort_key}->{type} // 'string'; | |
84 | if ($type eq 'integer' || $type eq 'number') { | |
85 | @$data = sort { $a->{$sort_key} <=> $b->{$sort_key} } @$data; | |
86 | } else { | |
87 | @$data = sort { $a->{$sort_key} cmp $b->{$sort_key} } @$data; | |
88 | } | |
89 | } | |
90 | ||
91 | my $colopts = {}; | |
92 | ||
93 | my $borderstring_m = ''; | |
94 | my $borderstring_b = ''; | |
95 | my $borderstring_t = ''; | |
96 | my $formatstring = ''; | |
97 | ||
98 | my $column_count = scalar(@$props_to_print); | |
99 | ||
100 | my $tabledata = []; | |
101 | ||
102 | foreach my $entry (@$data) { | |
103 | ||
104 | my $height = 1; | |
105 | my $rowdata = {}; | |
106 | ||
107 | for (my $i = 0; $i < $column_count; $i++) { | |
108 | my $prop = $props_to_print->[$i]; | |
109 | my $propinfo = $returnprops->{$prop} // {}; | |
110 | ||
111 | my $text = data_to_text($entry->{$prop}, $propinfo); | |
112 | my $lines = [ split(/\n/, $text) ]; | |
113 | my $linecount = scalar(@$lines); | |
114 | $height = $linecount if $linecount > $height; | |
115 | ||
116 | my $width = 0; | |
117 | foreach my $line (@$lines) { | |
118 | my $len = length($line); | |
119 | $width = $len if $len > $width; | |
120 | } | |
121 | ||
122 | $rowdata->{$prop} = { | |
123 | lines => $lines, | |
124 | width => $width, | |
125 | }; | |
126 | } | |
127 | ||
128 | push @$tabledata, { | |
129 | height => $height, | |
130 | rowdata => $rowdata, | |
131 | }; | |
132 | } | |
133 | ||
134 | for (my $i = 0; $i < $column_count; $i++) { | |
135 | my $prop = $props_to_print->[$i]; | |
136 | my $propinfo = $returnprops->{$prop} // {}; | |
137 | ||
138 | my $title = $propinfo->{title} // $prop; | |
139 | my $cutoff = $propinfo->{print_width} // $propinfo->{maxLength}; | |
140 | ||
141 | # calculate maximal print width and cutoff | |
142 | my $titlelen = length($title); | |
143 | ||
144 | my $longest = $titlelen; | |
145 | foreach my $coldata (@$tabledata) { | |
146 | my $rowdata = $coldata->{rowdata}->{$prop}; | |
147 | $longest = $rowdata->{width} if $rowdata->{width} > $longest; | |
148 | } | |
149 | $cutoff = $longest if !defined($cutoff) || $cutoff > $longest; | |
150 | ||
151 | $colopts->{$prop} = { | |
152 | title => $title, | |
153 | cutoff => $cutoff, | |
154 | }; | |
155 | ||
156 | if ($border) { | |
157 | if ($i == 0 && ($column_count == 1)) { | |
158 | if ($utf8) { | |
159 | $formatstring .= "│ %-${cutoff}s │"; | |
160 | $borderstring_t .= "┌─" . ('─' x $cutoff) . "─┐"; | |
161 | $borderstring_m .= "├─" . ('─' x $cutoff) . "─┤"; | |
162 | $borderstring_b .= "└─" . ('─' x $cutoff) . "─┘"; | |
163 | } else { | |
164 | $formatstring .= "| %-${cutoff}s |"; | |
165 | $borderstring_m .= "+-" . ('-' x $cutoff) . "-+"; | |
166 | } | |
167 | } elsif ($i == 0) { | |
168 | if ($utf8) { | |
169 | $formatstring .= "│ %-${cutoff}s "; | |
170 | $borderstring_t .= "┌─" . ('─' x $cutoff) . '─'; | |
171 | $borderstring_m .= "├─" . ('─' x $cutoff) . '─'; | |
172 | $borderstring_b .= "└─" . ('─' x $cutoff) . '─'; | |
173 | } else { | |
174 | $formatstring .= "| %-${cutoff}s "; | |
175 | $borderstring_m .= "+-" . ('-' x $cutoff) . '-'; | |
176 | } | |
177 | } elsif ($i == ($column_count - 1)) { | |
178 | if ($utf8) { | |
179 | $formatstring .= "│ %-${cutoff}s │"; | |
180 | $borderstring_t .= "┬─" . ('─' x $cutoff) . "─┐"; | |
181 | $borderstring_m .= "┼─" . ('─' x $cutoff) . "─┤"; | |
182 | $borderstring_b .= "┴─" . ('─' x $cutoff) . "─┘"; | |
183 | } else { | |
184 | $formatstring .= "| %-${cutoff}s |"; | |
185 | $borderstring_m .= "+-" . ('-' x $cutoff) . "-+"; | |
186 | } | |
187 | } else { | |
188 | if ($utf8) { | |
189 | $formatstring .= "│ %-${cutoff}s "; | |
190 | $borderstring_t .= "┬─" . ('─' x $cutoff) . '─'; | |
191 | $borderstring_m .= "┼─" . ('─' x $cutoff) . '─'; | |
192 | $borderstring_b .= "┴─" . ('─' x $cutoff) . '─'; | |
193 | } else { | |
194 | $formatstring .= "| %-${cutoff}s "; | |
195 | $borderstring_m .= "+-" . ('-' x $cutoff) . '-'; | |
196 | } | |
197 | } | |
198 | } else { | |
199 | # skip alignment and cutoff on last column | |
200 | $formatstring .= ($i == ($column_count - 1)) ? "%s" : "%-${cutoff}s "; | |
201 | } | |
202 | } | |
203 | ||
204 | $borderstring_t = $borderstring_m if !length($borderstring_t); | |
205 | $borderstring_b = $borderstring_m if !length($borderstring_b); | |
206 | ||
207 | my $writeln = sub { | |
208 | my ($text) = @_; | |
209 | ||
210 | if ($columns) { | |
211 | print encode($encoding, substr($text, 0, $columns) . "\n"); | |
212 | } else { | |
213 | print encode($encoding, $text) . "\n"; | |
214 | } | |
215 | }; | |
216 | ||
217 | $writeln->($borderstring_t) if $border; | |
218 | my $text = sprintf $formatstring, map { $colopts->{$_}->{title} } @$props_to_print; | |
219 | $writeln->($text); | |
220 | ||
221 | foreach my $coldata (@$tabledata) { | |
222 | $writeln->($borderstring_m) if $border; | |
223 | ||
224 | for (my $i = 0; $i < $coldata->{height}; $i++) { | |
225 | ||
226 | $text = sprintf $formatstring, map { | |
227 | substr($coldata->{rowdata}->{$_}->{lines}->[$i] // '', 0, $colopts->{$_}->{cutoff}); | |
228 | } @$props_to_print; | |
229 | ||
230 | $writeln->($text); | |
231 | } | |
232 | } | |
233 | ||
234 | $writeln->($borderstring_b) if $border; | |
235 | } | |
236 | ||
237 | # prints the result of an API GET call returning an array as a table. | |
238 | # takes formatting information from the results property of the call | |
239 | # if $props_to_print is provided, prints only those columns. otherwise | |
240 | # takes all fields of the results property, with a fallback | |
241 | # to all fields occuring in items of $data. | |
242 | sub print_api_list { | |
243 | my ($data, $result_schema, $props_to_print, $options) = @_; | |
244 | ||
245 | die "can only print object lists\n" | |
246 | if !($result_schema->{type} eq 'array' && $result_schema->{items}->{type} eq 'object'); | |
247 | ||
248 | my $returnprops = $result_schema->{items}->{properties}; | |
249 | ||
250 | if (!defined($props_to_print)) { | |
251 | $props_to_print = [ sort keys %$returnprops ]; | |
252 | if (!scalar(@$props_to_print)) { | |
253 | my $all_props = {}; | |
254 | foreach my $obj (@{$data}) { | |
255 | foreach my $key (keys %{$obj}) { | |
256 | $all_props->{ $key } = 1; | |
257 | } | |
258 | } | |
259 | $props_to_print = [ sort keys %{$all_props} ]; | |
260 | } | |
261 | die "unable to detect list properties\n" if !scalar(@$props_to_print); | |
262 | } | |
263 | ||
264 | print_text_table($data, $returnprops, $props_to_print, $options); | |
265 | } | |
266 | ||
267 | sub print_api_result { | |
268 | my ($format, $data, $result_schema, $props_to_print, $options) = @_; | |
269 | ||
270 | if (!defined($options)) { | |
271 | $options = query_terminal_options({}); | |
272 | } else { | |
273 | $options = { %$options }; # copy | |
274 | } | |
275 | ||
276 | return if $result_schema->{type} eq 'null'; | |
277 | ||
278 | if ($format eq 'json') { | |
279 | # Note: we always use utf8 encoding for json format | |
280 | print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1, pretty => 1 }); | |
281 | } elsif ($format eq 'text' || $format eq 'plain') { | |
282 | my $encoding = $options->{encoding} // 'UTF-8'; | |
283 | my $type = $result_schema->{type}; | |
284 | if ($type eq 'object') { | |
285 | $props_to_print = [ sort keys %$data ] if !defined($props_to_print); | |
286 | my $kvstore = []; | |
287 | foreach my $key (@$props_to_print) { | |
288 | push @$kvstore, { key => $key, value => data_to_text($data->{$key}, $result_schema->{properties}->{$key}) }; | |
289 | } | |
290 | my $schema = { type => 'array', items => { type => 'object' }}; | |
291 | $options->{border} = $format eq 'text'; | |
292 | print_api_list($kvstore, $schema, ['key', 'value'], $options); | |
293 | } elsif ($type eq 'array') { | |
294 | return if !scalar(@$data); | |
295 | my $item_type = $result_schema->{items}->{type}; | |
296 | if ($item_type eq 'object') { | |
297 | $options->{border} = $format eq 'text'; | |
298 | print_api_list($data, $result_schema, $props_to_print, $options); | |
299 | } else { | |
300 | foreach my $entry (@$data) { | |
301 | print encode($encoding, data_to_text($entry) . "\n"); | |
302 | } | |
303 | } | |
304 | } else { | |
305 | print encode($encoding, "$data\n"); | |
306 | } | |
307 | } else { | |
308 | die "internal error: unknown output format"; # should not happen | |
309 | } | |
310 | } | |
311 | ||
312 | 1; |