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/**
* SPM - Simple Package Manager
* @file spm.c
*/
#include <errno.h>
#include "spm.h"
int RUNTIME_INSTALL = 0;
int RUNTIME_ROOTDIR = 0;
const int PACKAGE_MAX = 0xff;
void usage(const char *program_name) {
printf(
"usage: %s [-hVv] [-I|--install {package ...}]\n"
" -h, --help show this help message\n"
" -V, --version show version\n"
" -v, --verbose show more information\n"
" -I, --install install package(s)\n"
, program_name
);
}
int main(int argc, char *argv[]) {
char program_name[strlen(argv[0]) + 1];
memset(program_name, '\0', sizeof(program_name) + 1);
strcpy(program_name, basename(argv[0]));
// not much to see here yet
// at the moment this will all be random tests, for better or worse
// everything here is subject to change without notice
// Initialize configuration data
init_config_global();
// Ensure external programs are available for use.
check_runtime_environment();
char root[PATH_MAX];
memset(root, '\0', PATH_MAX);
char *packages[PACKAGE_MAX];
memset(packages, '\0', sizeof(char *));
if (argc < 2) {
usage(program_name);
exit(1);
}
for (int i = 1; i < argc; i++) {
char *arg = argv[i];
char *arg_next = argv[i + 1] ? argv[i + 1] : NULL;
// options
if (*arg == '-' || strncmp(arg, "--", 2) == 0) {
if (strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0) {
usage(program_name);
exit(0);
}
else if (strcmp(arg, "-V") == 0 || strcmp(arg, "--version") == 0) {
printf("want version\n");
exit(0);
}
else if (strcmp(arg, "-v") == 0 || strcmp(arg, "--verbose") == 0) {
SPM_GLOBAL.verbose = 1;
}
else if (strcmp(arg, "-r") == 0 || strcmp(arg, "--root") == 0) {
RUNTIME_ROOTDIR = 1;
if (!arg_next) {
fprintf(stderr, "-r|--root requires a path\n");
usage(program_name);
exit(1);
}
strcpy(root, arg_next);
i++;
}
else if (strcmp(arg, "-I") == 0 || strcmp(arg, "--install") == 0) {
RUNTIME_INSTALL = 1;
for (int p = 0; i < argc; p++) {
i++;
if (startswith(argv[i], "-") == 0 || startswith(argv[i], "--") == 0) {
if (!p) {
fprintf(stderr, "-I|--install requires at least one package (got: '%s')\n", argv[i]);
exit(1);
}
i--;
break;
}
packages[p] = argv[i];
}
}
}
else {
printf("Unknown option: %s\n", arg);
usage(program_name);
exit(1);
}
}
// Dump configuration
if (SPM_GLOBAL.verbose) {
show_global_config();
}
if (RUNTIME_ROOTDIR && !RUNTIME_INSTALL) {
fprintf(stderr, "-r|--root requires -I|--install\n");
usage(program_name);
exit(1);
}
if (RUNTIME_INSTALL) {
Dependencies *deps = NULL;
dep_init(&deps);
if (isempty(root)) {
printf("Using default installation root\n");
sprintf(root, "%s%c%s", getenv("HOME"), DIRSEP, "spm_root");
}
printf("Installation root: %s\n", root);
printf("Requested packages:\n");
for (int i = 0; i < PACKAGE_MAX; i++) {
if (packages[i] == NULL) {
break;
}
printf(" -> %s\n", packages[i]);
}
printf("Resolving package requirements...\n");
for (int i = 0; i < PACKAGE_MAX; i++) {
char *match = NULL;
char *package = NULL;
if (packages[i] == NULL) {
break;
}
if ((match = find_package(packages[i])) == NULL) {
fprintf(SYSERROR);
exit(1);
}
if ((package = basename(match)) == NULL) {
fprintf(stderr, "Unable to derive package name from package path:\n\t-> %s\n", match);
exit(1);
}
if (dep_all(&deps, package) < 0) {
dep_free(&deps);
free_global_config();
exit(1);
}
}
if (deps) {
// List requirements before installation
for (int i = 0; i < deps->records; i++) {
printf(" -> %s\n", deps->list[i]);
}
printf("Installing package requirements:\n");
for (int i = 0; i < deps->records; i++) {
printf(" -> %s\n", deps->list[i]);
if (install(root, deps->list[i]) < 0) {
fprintf(SYSERROR);
exit(errno);
}
}
}
printf("Installing package:\n");
for (int i = 0; i < PACKAGE_MAX; i++) {
char *match = NULL;
char *package = NULL;
if (!packages[i]) {
break;
}
if ((match = find_package(packages[i])) == NULL) {
fprintf(SYSERROR);
exit(1);
}
if ((package = basename(match)) == NULL) {
fprintf(stderr, "Unable to derive package name from package path:\n\t-> %s\n", match);
exit(1);
}
// If the package was installed as a requirement of another dependency, skip it
if (dep_seen(&deps, package)) {
continue;
}
printf(" -> %s\n", package);
if (install(root, packages[i]) < 0) {
fprintf(SYSERROR);
exit(errno);
}
free(match);
}
dep_free(&deps);
}
free_global_config();
return 0;
}
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