/* app_index.c - Alpine Package Keeper (APK) * * Copyright (C) 2005-2008 Natanael Copa * Copyright (C) 2008-2011 Timo Teräs * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #include #include "apk_applet.h" #include "apk_database.h" #include "apk_print.h" #include "apk_tar.h" #define APK_INDEXF_NO_WARNINGS 0x0001 struct counts { struct apk_out *out; int unsatisfied; }; struct index_ctx { const char *index; const char *output; const char *description; const char *rewrite_arch; time_t index_mtime; unsigned short index_flags; }; #define INDEX_OPTIONS(OPT) \ OPT(OPT_INDEX_description, APK_OPT_ARG APK_OPT_SH("d") "description") \ OPT(OPT_INDEX_index, APK_OPT_ARG APK_OPT_SH("x") "index") \ OPT(OPT_INDEX_no_warnings, "no-warnings") \ OPT(OPT_INDEX_output, APK_OPT_ARG APK_OPT_SH("o") "output") \ OPT(OPT_INDEX_rewrite_arch, APK_OPT_ARG "rewrite-arch") APK_OPT_APPLET(option_desc, INDEX_OPTIONS); static int option_parse_applet(void *ctx, struct apk_ctx *ac, int opt, const char *optarg) { struct index_ctx *ictx = (struct index_ctx *) ctx; switch (opt) { case OPT_INDEX_description: ictx->description = optarg; break; case OPT_INDEX_index: ictx->index = optarg; break; case OPT_INDEX_output: ictx->output = optarg; break; case OPT_INDEX_rewrite_arch: ictx->rewrite_arch = optarg; break; case OPT_INDEX_no_warnings: ictx->index_flags |= APK_INDEXF_NO_WARNINGS; break; default: return -ENOTSUP; } return 0; } static const struct apk_option_group optgroup_applet = { .desc = option_desc, .parse = option_parse_applet, }; static int index_read_file(struct apk_database *db, struct index_ctx *ictx) { struct apk_file_info fi; if (ictx->index == NULL) return 0; if (apk_fileinfo_get(AT_FDCWD, ictx->index, 0, &fi, &db->atoms) < 0) return 0; ictx->index_mtime = fi.mtime; return apk_db_index_read_file(db, ictx->index, 0); } static int warn_if_no_providers(apk_hash_item item, void *ctx) { struct counts *counts = (struct counts *) ctx; struct apk_name *name = (struct apk_name *) item; struct apk_out *out = counts->out; if (!name->is_dependency) return 0; if (name->providers->num) return 0; if (++counts->unsatisfied < 10) { apk_warn(out, "No provider for dependency '%s'", name->name); } else if (counts->unsatisfied == 10) { apk_warn(out, "Too many unsatisfiable dependencies, not reporting the rest."); } return 0; } static int index_main(void *ctx, struct apk_ctx *ac, struct apk_string_array *args) { struct apk_out *out = &ac->out; struct apk_database *db = ac->db; struct counts counts = { .out = out }; struct apk_ostream *os, *counter; struct apk_file_info fi; int total, r, found, newpkgs = 0, errors = 0; struct index_ctx *ictx = (struct index_ctx *) ctx; struct apk_package *pkg; char **parg; apk_blob_t *rewrite_arch = NULL; if (isatty(STDOUT_FILENO) && ictx->output == NULL && !(db->ctx->force & APK_FORCE_BINARY_STDOUT)) { apk_err(out, "Will not write binary index to console. " "Use --force-binary-stdout to override."); return -1; } if ((r = index_read_file(db, ictx)) < 0) { apk_err(out, "%s: %s", ictx->index, apk_error_str(r)); return r; } if (ictx->rewrite_arch) rewrite_arch = apk_atomize(&db->atoms, APK_BLOB_STR(ictx->rewrite_arch)); foreach_array_item(parg, args) { if (apk_fileinfo_get(AT_FDCWD, *parg, 0, &fi, &db->atoms) < 0) { apk_warn(out, "File '%s' is unaccessible", *parg); continue; } found = FALSE; do { struct apk_provider *p; struct apk_name *name; char *fname, *fend; apk_blob_t bname, bver; /* Check if index is newer than package */ if (ictx->index == NULL || ictx->index_mtime < fi.mtime) break; /* Check that it looks like a package name */ fname = strrchr(*parg, '/'); if (fname == NULL) fname = *parg; else fname++; fend = strstr(fname, ".apk"); if (fend == NULL) break; if (apk_pkg_parse_name(APK_BLOB_PTR_PTR(fname, fend-1), &bname, &bver) < 0) break; /* If we have it in the old index already? */ name = apk_db_query_name(db, bname); if (name == NULL) break; foreach_array_item(p, name->providers) { pkg = p->pkg; if (pkg->name != name) continue; if (apk_blob_compare(bver, *pkg->version) != 0) continue; if (pkg->size != fi.size) continue; pkg->filename = strdup(*parg); if (rewrite_arch) pkg->arch = rewrite_arch; found = TRUE; break; } } while (0); if (!found) { r = apk_pkg_read(db, *parg, &pkg, FALSE); if (r < 0) { apk_err(out, "%s: %s", *parg, apk_error_str(r)); errors++; } else { newpkgs++; if (rewrite_arch) pkg->arch = rewrite_arch; } } } if (errors) return -1; if (ictx->output != NULL) os = apk_ostream_to_file(AT_FDCWD, ictx->output, 0644); else os = apk_ostream_to_fd(STDOUT_FILENO); if (IS_ERR(os)) return PTR_ERR(os); memset(&fi, 0, sizeof(fi)); fi.mode = 0644 | S_IFREG; fi.name = "APKINDEX"; counter = apk_ostream_counter(&fi.size); r = apk_db_index_write(db, counter); apk_ostream_close(counter); if (r >= 0) { os = apk_ostream_gzip(os); if (ictx->description != NULL) { struct apk_file_info fi_desc; memset(&fi_desc, 0, sizeof(fi)); fi_desc.mode = 0644 | S_IFREG; fi_desc.name = "DESCRIPTION"; fi_desc.size = strlen(ictx->description); apk_tar_write_entry(os, &fi_desc, ictx->description); } apk_tar_write_entry(os, &fi, NULL); r = apk_db_index_write(db, os); apk_tar_write_padding(os, &fi); apk_tar_write_entry(os, NULL, NULL); } apk_ostream_close(os); if (r < 0) { apk_err(out, "Index generation failed: %s", apk_error_str(r)); return r; } total = r; if (!(ictx->index_flags & APK_INDEXF_NO_WARNINGS)) { apk_hash_foreach(&db->available.names, warn_if_no_providers, &counts); } if (counts.unsatisfied != 0) apk_warn(out, "Total of %d unsatisfiable package names. Your repository may be broken.", counts.unsatisfied); apk_msg(out, "Index has %d packages (of which %d are new)", total, newpkgs); return 0; } static struct apk_applet apk_index = { .name = "index", .open_flags = APK_OPENF_READ | APK_OPENF_NO_STATE | APK_OPENF_NO_REPOS, .context_size = sizeof(struct index_ctx), .optgroups = { &optgroup_global, &optgroup_applet }, .main = index_main, }; APK_DEFINE_APPLET(apk_index);