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/*
 * Builtin "git log" and related commands (show, whatchanged)
 *
 * (C) Copyright 2006 Linus Torvalds
 *		 2006 Junio Hamano
 */
#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
 
static int cmd_log_wc(int argc, const char **argv, char **envp,
		      struct rev_info *rev)
{
	struct commit *commit;
 
	rev->abbrev = DEFAULT_ABBREV;
	rev->commit_format = CMIT_FMT_DEFAULT;
	rev->verbose_header = 1;
	argc = setup_revisions(argc, argv, rev, "HEAD");
 
	if (argc > 1)
		die("unrecognized argument: %s", argv[1]);
 
	prepare_revision_walk(rev);
	setup_pager();
	while ((commit = get_revision(rev)) != NULL) {
		log_tree_commit(rev, commit);
		free(commit->buffer);
		commit->buffer = NULL;
	}
	return 0;
}
 
int cmd_whatchanged(int argc, const char **argv, char **envp)
{
	struct rev_info rev;
 
	init_revisions(&rev);
	rev.diff = 1;
	rev.diffopt.recursive = 1;
	return cmd_log_wc(argc, argv, envp, &rev);
}
 
int cmd_show(int argc, const char **argv, char **envp)
{
	struct rev_info rev;
 
	init_revisions(&rev);
	rev.diff = 1;
	rev.diffopt.recursive = 1;
	rev.combine_merges = 1;
	rev.dense_combined_merges = 1;
	rev.always_show_header = 1;
	rev.ignore_merges = 0;
	rev.no_walk = 1;
	return cmd_log_wc(argc, argv, envp, &rev);
}
 
int cmd_log(int argc, const char **argv, char **envp)
{
	struct rev_info rev;
 
	init_revisions(&rev);
	rev.always_show_header = 1;
	rev.diffopt.recursive = 1;
	return cmd_log_wc(argc, argv, envp, &rev);
}
 
int cmd_format_patch(int argc, const char **argv, char **envp)
{
	struct commit *commit;
	struct commit **list = NULL;
	struct rev_info rev;
	int nr = 0;
 
	init_revisions(&rev);
	rev.commit_format = CMIT_FMT_EMAIL;
	rev.verbose_header = 1;
	rev.diff = 1;
	rev.diffopt.with_raw = 0;
	rev.diffopt.with_stat = 1;
	rev.combine_merges = 0;
	rev.ignore_merges = 1;
	rev.diffopt.output_format = DIFF_FORMAT_PATCH;
	argc = setup_revisions(argc, argv, &rev, "HEAD");
 
	prepare_revision_walk(&rev);
	while ((commit = get_revision(&rev)) != NULL) {
		nr++;
		list = realloc(list, nr * sizeof(list[0]));
		list[nr - 1] = commit;
	}
	while (0 <= --nr) {
		int shown;
		commit = list[nr];
		shown = log_tree_commit(&rev, commit);
		free(commit->buffer);
		commit->buffer = NULL;
		if (shown)
			printf("-- \n%s\n\n", git_version_string);
	}
	free(list);
	return 0;
}