X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git.c;h=164d3e9e4f41869192493d39e93ea4fc34fde4eb;hb=bd494fc76be09ab61f8285f1299e2474b0554a81;hp=993cd0d4904be11edb6234e47d10376733928740;hpb=d00e0f8101e18e3d48a60d574dacc83dad8e19bb;p=git.git

diff --git a/git.c b/git.c
index 993cd0d4..164d3e9e 100644
--- a/git.c
+++ b/git.c
@@ -12,6 +12,10 @@
 #include "git-compat-util.h"
 #include "exec_cmd.h"
 
+#include "cache.h"
+#include "commit.h"
+#include "revision.h"
+
 #ifndef PATH_MAX
 # define PATH_MAX 4096
 #endif
@@ -212,50 +216,125 @@ static void prepend_to_path(const char *dir, int len)
 	setenv("PATH", path, 1);
 }
 
-static void show_man_page(char *git_cmd)
+static void show_man_page(const char *git_cmd)
 {
-	char *page;
+	const char *page;
 
 	if (!strncmp(git_cmd, "git", 3))
 		page = git_cmd;
 	else {
 		int page_len = strlen(git_cmd) + 4;
-
-		page = malloc(page_len + 1);
-		strcpy(page, "git-");
-		strcpy(page + 4, git_cmd);
-		page[page_len] = 0;
+		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, char **argv, char **envp)
+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, char **argv, char **envp)
+static int cmd_help(int argc, const char **argv, char **envp)
 {
-	char *help_cmd = argv[1];
+	const char *help_cmd = argv[1];
 	if (!help_cmd)
 		cmd_usage(git_exec_path(), NULL);
 	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 show_parents = 0;
+	const char *commit_prefix = "commit ";
+
+	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, "--parents")) {
+			show_parents = 1;
+		}
+		else if (!strcmp(arg, "--no-abbrev")) {
+			abbrev = 0;
+		}
+		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
+			die("unrecognized argument: %s", arg);
+		argc--; argv++;
+	}
+
+	prepare_revision_walk(&rev);
+	setup_pager();
+	while ((commit = get_revision(&rev)) != NULL) {
+		printf("%s%s", commit_prefix,
+		       sha1_to_hex(commit->object.sha1));
+		if (show_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);
+	}
+	free(buf);
+	return 0;
+}
+
 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
 
-static void handle_internal_command(int argc, char **argv, char **envp)
+static void handle_internal_command(int argc, const char **argv, char **envp)
 {
 	const char *cmd = argv[0];
 	static struct cmd_struct {
 		const char *cmd;
-		int (*fn)(int, char **, char **);
+		int (*fn)(int, const char **, char **);
 	} commands[] = {
 		{ "version", cmd_version },
 		{ "help", cmd_help },
+		{ "log", cmd_log },
 	};
 	int i;
 
@@ -267,9 +346,9 @@ static void handle_internal_command(int argc, char **argv, char **envp)
 	}
 }
 
-int main(int argc, char **argv, char **envp)
+int main(int argc, const char **argv, char **envp)
 {
-	char *cmd = argv[0];
+	const char *cmd = argv[0];
 	char *slash = strrchr(cmd, '/');
 	char git_command[PATH_MAX + 1];
 	const char *exec_path = NULL;