X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git.c;h=01b7e28b8c459c677a340f195a969a67a6d21792;hb=cfa24e184a67cc36f414d913cf705d31e70a7a1a;hp=8776088af349b70784a78d30cec4f2445f8594eb;hpb=8fcd4218c63d15481d8fbb12c3fddfffa98e1adc;p=git.git diff --git a/git.c b/git.c index 8776088a..01b7e28b 100644 --- a/git.c +++ b/git.c @@ -8,218 +8,10 @@ #include #include #include -#include #include "git-compat-util.h" #include "exec_cmd.h" -#include "common-cmds.h" -#include "cache.h" -#include "commit.h" -#include "revision.h" -#include "diff.h" -#include "log-tree.h" - -#ifndef PATH_MAX -# define PATH_MAX 4096 -#endif - -static const char git_usage[] = - "Usage: git [--version] [--exec-path[=GIT_EXEC_PATH]] [--help] COMMAND [ ARGS ]"; - -/* most gui terms set COLUMNS (although some don't export it) */ -static int term_columns(void) -{ - char *col_string = getenv("COLUMNS"); - int n_cols = 0; - - if (col_string && (n_cols = atoi(col_string)) > 0) - return n_cols; - -#ifdef TIOCGWINSZ - { - struct winsize ws; - if (!ioctl(1, TIOCGWINSZ, &ws)) { - if (ws.ws_col) - return ws.ws_col; - } - } -#endif - - return 80; -} - -static void oom(void) -{ - fprintf(stderr, "git: out of memory\n"); - exit(1); -} - -static inline void mput_char(char c, unsigned int num) -{ - while(num--) - putchar(c); -} - -static struct cmdname { - size_t len; - char name[1]; -} **cmdname; -static int cmdname_alloc, cmdname_cnt; - -static void add_cmdname(const char *name, int len) -{ - struct cmdname *ent; - if (cmdname_alloc <= cmdname_cnt) { - cmdname_alloc = cmdname_alloc + 200; - cmdname = realloc(cmdname, cmdname_alloc * sizeof(*cmdname)); - if (!cmdname) - oom(); - } - ent = malloc(sizeof(*ent) + len); - if (!ent) - oom(); - ent->len = len; - memcpy(ent->name, name, len); - ent->name[len] = 0; - cmdname[cmdname_cnt++] = ent; -} - -static int cmdname_compare(const void *a_, const void *b_) -{ - struct cmdname *a = *(struct cmdname **)a_; - struct cmdname *b = *(struct cmdname **)b_; - return strcmp(a->name, b->name); -} - -static void pretty_print_string_list(struct cmdname **cmdname, int longest) -{ - int cols = 1, rows; - int space = longest + 1; /* min 1 SP between words */ - int max_cols = term_columns() - 1; /* don't print *on* the edge */ - int i, j; - - if (space < max_cols) - cols = max_cols / space; - rows = (cmdname_cnt + cols - 1) / cols; - - qsort(cmdname, cmdname_cnt, sizeof(*cmdname), cmdname_compare); - - for (i = 0; i < rows; i++) { - printf(" "); - - for (j = 0; j < cols; j++) { - int n = j * rows + i; - int size = space; - if (n >= cmdname_cnt) - break; - if (j == cols-1 || n + rows >= cmdname_cnt) - size = 1; - printf("%-*s", size, cmdname[n]->name); - } - putchar('\n'); - } -} - -static void list_commands(const char *exec_path, const char *pattern) -{ - unsigned int longest = 0; - char path[PATH_MAX]; - int dirlen; - DIR *dir = opendir(exec_path); - struct dirent *de; - - if (!dir) { - fprintf(stderr, "git: '%s': %s\n", exec_path, strerror(errno)); - exit(1); - } - - dirlen = strlen(exec_path); - if (PATH_MAX - 20 < dirlen) { - fprintf(stderr, "git: insanely long exec-path '%s'\n", - exec_path); - exit(1); - } - - memcpy(path, exec_path, dirlen); - path[dirlen++] = '/'; - - while ((de = readdir(dir)) != NULL) { - struct stat st; - int entlen; - - if (strncmp(de->d_name, "git-", 4)) - continue; - strcpy(path+dirlen, de->d_name); - if (stat(path, &st) || /* stat, not lstat */ - !S_ISREG(st.st_mode) || - !(st.st_mode & S_IXUSR)) - continue; - - entlen = strlen(de->d_name); - if (4 < entlen && !strcmp(de->d_name + entlen - 4, ".exe")) - entlen -= 4; - - if (longest < entlen) - longest = entlen; - - add_cmdname(de->d_name + 4, entlen-4); - } - closedir(dir); - - printf("git commands available in '%s'\n", exec_path); - printf("----------------------------"); - mput_char('-', strlen(exec_path)); - putchar('\n'); - pretty_print_string_list(cmdname, longest - 4); - putchar('\n'); -} - -static void list_common_cmds_help(void) -{ - int i, longest = 0; - - for (i = 0; i < ARRAY_SIZE(common_cmds); i++) { - if (longest < strlen(common_cmds[i].name)) - longest = strlen(common_cmds[i].name); - } - - puts("The most commonly used git commands are:"); - for (i = 0; i < ARRAY_SIZE(common_cmds); i++) { - printf(" %s", common_cmds[i].name); - mput_char(' ', longest - strlen(common_cmds[i].name) + 4); - puts(common_cmds[i].help); - } - puts("(use 'git help -a' to get a list of all installed git commands)"); -} - -#ifdef __GNUC__ -static void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...) - __attribute__((__format__(__printf__, 3, 4), __noreturn__)); -#endif -static void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...) -{ - if (fmt) { - va_list ap; - - va_start(ap, fmt); - printf("git: "); - vprintf(fmt, ap); - va_end(ap); - putchar('\n'); - } - else - puts(git_usage); - - if (exec_path) { - putchar('\n'); - if (show_all) - list_commands(exec_path, "git-*"); - else - list_common_cmds_help(); - } - - exit(1); -} +#include "builtin.h" static void prepend_to_path(const char *dir, int len) { @@ -240,150 +32,7 @@ static void prepend_to_path(const char *dir, int len) setenv("PATH", path, 1); } -static void show_man_page(const char *git_cmd) -{ - const char *page; - - if (!strncmp(git_cmd, "git", 3)) - page = git_cmd; - else { - int page_len = strlen(git_cmd) + 4; - char *p = malloc(page_len + 1); - strcpy(p, "git-"); - strcpy(p + 4, git_cmd); - p[page_len] = 0; - page = p; - } - - execlp("man", "man", page, NULL); -} - -static int cmd_version(int argc, const char **argv, char **envp) -{ - printf("git version %s\n", GIT_VERSION); - return 0; -} - -static int cmd_help(int argc, const char **argv, char **envp) -{ - const char *help_cmd = argv[1]; - if (!help_cmd) - cmd_usage(0, git_exec_path(), NULL); - else if (!strcmp(help_cmd, "--all") || !strcmp(help_cmd, "-a")) - cmd_usage(1, git_exec_path(), NULL); - else - show_man_page(help_cmd); - return 0; -} - -#define LOGSIZE (65536) - -static int cmd_log(int argc, const char **argv, char **envp) -{ - struct rev_info rev; - struct commit *commit; - char *buf = xmalloc(LOGSIZE); - static enum cmit_fmt commit_format = CMIT_FMT_DEFAULT; - int abbrev = DEFAULT_ABBREV; - int abbrev_commit = 0; - const char *commit_prefix = "commit "; - struct log_tree_opt opt; - int do_diff = 0; - - init_log_tree_opt(&opt); - argc = setup_revisions(argc, argv, &rev, "HEAD"); - while (1 < argc) { - const char *arg = argv[1]; - if (!strncmp(arg, "--pretty", 8)) { - commit_format = get_commit_format(arg + 8); - if (commit_format == CMIT_FMT_ONELINE) - commit_prefix = ""; - } - else if (!strcmp(arg, "--no-abbrev")) { - abbrev = 0; - } - else if (!strcmp(arg, "--abbrev")) { - abbrev = DEFAULT_ABBREV; - } - else if (!strcmp(arg, "--abbrev-commit")) { - abbrev_commit = 1; - } - else if (!strncmp(arg, "--abbrev=", 9)) { - abbrev = strtoul(arg + 9, NULL, 10); - if (abbrev && abbrev < MINIMUM_ABBREV) - abbrev = MINIMUM_ABBREV; - else if (40 < abbrev) - abbrev = 40; - } - else { - int cnt = log_tree_opt_parse(&opt, argv+1, argc-1); - if (0 < cnt) { - do_diff = 1; - argv += cnt; - argc -= cnt; - continue; - } - die("unrecognized argument: %s", arg); - } - - argc--; argv++; - } - if (do_diff) { - opt.diffopt.abbrev = abbrev; - opt.verbose_header = 0; - opt.always_show_header = 0; - opt.no_commit_id = 1; - if (opt.combine_merges) - opt.ignore_merges = 0; - if (opt.dense_combined_merges) - opt.diffopt.output_format = DIFF_FORMAT_PATCH; - if (opt.diffopt.output_format == DIFF_FORMAT_PATCH) - opt.diffopt.recursive = 1; - diff_setup_done(&opt.diffopt); - } - - prepare_revision_walk(&rev); - setup_pager(); - while ((commit = get_revision(&rev)) != NULL) { - fputs(commit_prefix, stdout); - if (abbrev_commit && abbrev) - fputs(find_unique_abbrev(commit->object.sha1, abbrev), - stdout); - else - fputs(sha1_to_hex(commit->object.sha1), stdout); - if (rev.parents) { - struct commit_list *parents = commit->parents; - while (parents) { - struct object *o = &(parents->item->object); - parents = parents->next; - if (o->flags & TMP_MARK) - continue; - printf(" %s", sha1_to_hex(o->sha1)); - o->flags |= TMP_MARK; - } - /* TMP_MARK is a general purpose flag that can - * be used locally, but the user should clean - * things up after it is done with them. - */ - for (parents = commit->parents; - parents; - parents = parents->next) - parents->item->object.flags &= ~TMP_MARK; - } - if (commit_format == CMIT_FMT_ONELINE) - putchar(' '); - else - putchar('\n'); - pretty_print_commit(commit_format, commit, ~0, buf, - LOGSIZE, abbrev); - printf("%s\n", buf); - - if (do_diff) - log_tree_commit(&opt, commit); - } - free(buf); - return 0; -} +const char git_version_string[] = GIT_VERSION; static void handle_internal_command(int argc, const char **argv, char **envp) { @@ -395,9 +44,17 @@ static void handle_internal_command(int argc, const char **argv, char **envp) { "version", cmd_version }, { "help", cmd_help }, { "log", cmd_log }, + { "whatchanged", cmd_whatchanged }, + { "show", cmd_show }, }; int i; + /* Turn "git cmd --help" into "git help cmd" */ + if (argc > 1 && !strcmp(argv[1], "--help")) { + argv[1] = argv[0]; + argv[0] = cmd = "help"; + } + for (i = 0; i < ARRAY_SIZE(commands); i++) { struct cmd_struct *p = commands+i; if (strcmp(p->cmd, cmd))