--- a/src/main.cpp Sat Jan 11 13:45:38 2025 +0100
+++ b/src/main.cpp Tue Jan 21 18:09:14 2025 +0100
@@ -22,7 +22,111 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-int main() {
+#include "settings.h"
+
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+#include <cerrno>
+
+static void print_help() {
+ fputs(
+ "Usage: fallusmeter [OPTION]... [PATH]...\n\n"
+ "Options:\n"
+ " -h, --help Print this help message\n"
+ " -d, --depth <num> The search depth (default: 1, max: 255)\n"
+ " -n, --no-pull Do not pull the repositories\n"
+ " -s, --separate Output a separate heat map for each repository\n"
+ " -y, --year <year> The year for which to create the heat map\n"
+ " --hg <path> Path to hg binary (default: /usr/bin/hg)\n"
+ " --git <path> Path to git binary (default: /usr/bin/git)\n\n"
+ "Scans all specified paths recursively for Mercurial and Git repositories and\n"
+ "creates a commit heat map for the specified \033[1myear\033[22m or the current year.\n"
+ "By default, the recursion \033[1mdepth\033[22m is one, meaning that this tool assumes that\n"
+ "each \033[1mpath\033[22m is either a repository or contains repositories as subdirectories.\n"
+ "You can change the \033[1mdepth\033[22m to support other directory structures.\n\n"
+ "When you do not specify \033[1m--no-pull\033[22m, this tool will execute the pull command\n"
+ "(and for hg the update command) before retrieving the commit log, assuming\n"
+ "to be on the default branch with \033[4mno uncommitted changes\033[24m.\n\n"
+ "The default output format prints an HTML page to stdout. In all cases, a\n"
+ "separate heat map is generated for each author, but all repositories are,\n"
+ "accumulated unless the \033[1m--separate\033[22m option is specified.\n"
+ , stderr);
+}
+
+static bool chk_arg(const char* arg, const char* opt1, const char* opt2) {
+ return strcmp(arg, opt1) == 0 || (opt2 != nullptr && strcmp(arg, opt2) == 0);
+}
+
+template<typename T>
+static bool parse_unsigned(const char *str, T *result, unsigned long max) {
+ char *endptr;
+ errno = 0;
+ unsigned long d = strtoul(str, &endptr, 10);
+ if (*endptr != '\0' || errno == ERANGE) return true;
+ if (d < max) {
+ *result = d;
+ return false;
+ } else {
+ return true;
+ }
+}
+
+static int parse_args(fm::settings &settings, int argc, char *argv[]) {
+ for (int i = 1; i < argc; i++) {
+ if (chk_arg(argv[i], "-h", "--help")) {
+ print_help();
+ return -1;
+ } else if (chk_arg(argv[i], "-d", "--depth")) {
+ if (i + 1 >= argc || parse_unsigned(argv[++i], &settings.depth, 256)) {
+ fputs("missing or invalid depth\n", stderr);
+ return -1;
+ }
+ } else if (chk_arg(argv[i], "-y", "--year")) {
+ if (i + 1 >= argc || parse_unsigned(argv[++i], &settings.year, 9999)) {
+ fputs("missing or invalid year\n", stderr);
+ return -1;
+ }
+ } else if (chk_arg(argv[i], "-n", "--no-pull")) {
+ settings.nopull = true;
+ } else if (chk_arg(argv[i], "-s", "--separate")) {
+ settings.separate = true;
+ } else if (chk_arg(argv[i], "--hg", nullptr)) {
+ if (i + 1 < argc) {
+ settings.hg.assign(argv[++i]);
+ } else {
+ fputs("--hg is expecting a path\n", stderr);
+ return -1;
+ }
+ } else if (chk_arg(argv[i], "--git", nullptr)) {
+ if (i + 1 < argc) {
+ settings.git.assign(argv[++i]);
+ } else {
+ fputs("--git is expecting a path\n", stderr);
+ return -1;
+ }
+ } else if (argv[i][0] == '-') {
+ fprintf(stderr, "Unknown option: %s\n", argv[i]);
+ return -1;
+ } else {
+ settings.paths.emplace_back(argv[i]);
+ }
+ }
+
+ if (settings.paths.empty()) {
+ settings.paths.emplace_back("./");
+ }
+
return 0;
}
+int main(int argc, char *argv[]) {
+ fm::settings settings;
+
+ if (parse_args(settings, argc, argv)) {
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}
+