libsmartcols: add sort sunction to the sample
Signed-off-by: Karel Zak <kzak@redhat.com>
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d928b9afe2
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c59d442809
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@ -25,6 +25,8 @@ static int add_children(struct libscols_table *tb,
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enum { COL_MODE, COL_SIZE, COL_NAME };
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struct libscols_column *sort_column;
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/* add columns to the @tb */
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static void setup_columns(struct libscols_table *tb, int notree)
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{
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@ -32,9 +34,12 @@ static void setup_columns(struct libscols_table *tb, int notree)
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goto fail;
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if (!scols_table_new_column(tb, "SIZE", 5, SCOLS_FL_RIGHT))
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goto fail;
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if (!scols_table_new_column(tb, "NAME", 0.5,
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(notree ? 0 : SCOLS_FL_TREE) | SCOLS_FL_NOEXTREMES))
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sort_column = scols_table_new_column(tb, "NAME", 0.5,
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(notree ? 0 : SCOLS_FL_TREE) | SCOLS_FL_NOEXTREMES);
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if (!sort_column)
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goto fail;
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scols_column_set_cmpfunc(sort_column, scols_cmpstr_cells, NULL);
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return;
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fail:
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@ -149,6 +154,8 @@ static void __attribute__((__noreturn__)) usage(FILE *out)
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fputs(" -p, --pairs use key=\"value\" output format\n", out);
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fputs(" -J, --json use JSON output format\n", out);
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fputs(" -r, --raw use raw output format\n", out);
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fputs(" -s, --sort sort by NAME\n", out);
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fputs(" -x, --tree-sort keep tree-like order (also for --list)\n", out);
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fputs(" -S, --range-start <n> first line to print\n", out);
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fputs(" -E, --range-end <n> last line to print\n", out);
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@ -158,7 +165,7 @@ static void __attribute__((__noreturn__)) usage(FILE *out)
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int main(int argc, char *argv[])
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{
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struct libscols_table *tb;
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int c, notree = 0, nstart = -1, nend = -1;
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int c, notree = 0, nstart = -1, nend = -1, sort = 0, force_tree_sort = 0;
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static const struct option longopts[] = {
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@ -171,6 +178,8 @@ int main(int argc, char *argv[])
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{ "raw", 0, NULL, 'r' },
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{ "range-start",1, NULL, 'S' },
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{ "range-end", 1, NULL, 'E' },
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{ "sort", 0, NULL, 's' },
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{ "tree-sort", 0, NULL, 'x' },
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{ NULL, 0, NULL, 0 },
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};
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@ -182,7 +191,7 @@ int main(int argc, char *argv[])
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if (!tb)
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err(EXIT_FAILURE, "failed to create output table");
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while((c = getopt_long(argc, argv, "ciJlnprS:E:", longopts, NULL)) != -1) {
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while((c = getopt_long(argc, argv, "ciJlnprS:sE:x", longopts, NULL)) != -1) {
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switch(c) {
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case 'c':
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scols_table_set_column_separator(tb, ",");
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@ -213,9 +222,15 @@ int main(int argc, char *argv[])
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case 'S':
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nstart = strtos32_or_err(optarg, "failed to parse range start") - 1;
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break;
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case 's':
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sort = 1;
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break;
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case 'E':
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nend = strtos32_or_err(optarg, "failed to parse range end") - 1;
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break;
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case 'x':
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force_tree_sort = 1;
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break;
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default:
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usage(stderr);
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}
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@ -229,6 +244,11 @@ int main(int argc, char *argv[])
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else while (optind < argc)
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add_lines(tb, argv[optind++]);
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if (sort)
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scols_sort_table(tb, sort_column);
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if (force_tree_sort)
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scols_sort_table_by_tree(tb);
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if (nstart >= 0 || nend >= 0) {
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/* print subset */
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struct libscols_line *start = NULL, *end = NULL;
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