mirror of
https://github.com/pygos/pkg-utils.git
synced 2024-11-25 05:50:43 +01:00
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/* SPDX-License-Identifier: ISC */
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#include <stdbool.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include "depgraph.h"
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#include "command.h"
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static const struct option long_opts[] = {
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{ "no-dependencies", no_argument, NULL, 'd' },
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{ "repo-dir", required_argument, NULL, 'R' },
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{ NULL, 0, NULL, 0 },
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};
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static const char *short_opts = "dR:";
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static void print_dot_graph(struct pkg_dep_list *list)
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{
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struct pkg_dep_node *it;
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size_t i;
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printf("digraph dependencies {\n");
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for (it = list->head; it != NULL; it = it->next) {
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for (i = 0; i < it->num_deps; ++i) {
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printf("\t\"%s\" -> \"%s\";\n",
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it->name, it->deps[i]->name);
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}
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}
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printf("}\n");
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}
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static int cmd_depgraph(int argc, char **argv)
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{
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int i, repofd = AT_FDCWD, ret = EXIT_FAILURE;
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struct pkg_dep_list list;
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bool resolve_deps = true;
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memset(&list, 0, sizeof(list));
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for (;;) {
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i = getopt_long(argc, argv, short_opts, long_opts, NULL);
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if (i == -1)
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break;
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switch (i) {
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case 'd':
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resolve_deps = false;
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break;
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case 'R':
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if (repofd != AT_FDCWD) {
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fputs("repo specified more than once\n",
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stderr);
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tell_read_help(argv[0]);
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goto out;
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}
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repofd = open(optarg, O_RDONLY | O_DIRECTORY);
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if (repofd < 0) {
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perror(optarg);
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goto out;
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}
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break;
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default:
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tell_read_help(argv[0]);
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goto out;
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}
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}
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for (i = optind; i < argc; ++i) {
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if (append_pkg(&list, argv[i]) == NULL)
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goto out;
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}
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if (resolve_deps) {
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if (collect_dependencies(repofd, &list))
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goto out;
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}
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print_dot_graph(&list);
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ret = EXIT_SUCCESS;
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out:
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if (repofd != AT_FDCWD)
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close(repofd);
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pkg_list_cleanup(&list);
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return ret;
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}
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static command_t depgraph = {
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.cmd = "depgraph",
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.usage = "[OPTIONS...] PACKAGES...",
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.s_desc = "produces a DOT language dependency graph",
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.l_desc =
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"Fetches a number of packages from a repository directory by name and\n"
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"produces a DOT language dependency graph for the packages.\n"
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"\n"
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"Possible options:\n"
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" --repo-dir, -R <path> Specify the input repository path to fetch the\n"
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" packages from.\n"
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" --no-dependencies, -d Do not resolve dependencies, only process the\n"
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" packages listed on the command line.\n",
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.run_cmd = cmd_depgraph,
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};
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REGISTER_COMMAND(depgraph)
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