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da3ad3ebabfffd1f05de5e15cb4d5ae3b5585efa blob 3042 bytes (raw)

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#include "cache.h"
#include "builtin.h"
#include "parse-options.h"
#include "range-diff.h"
#include "config.h"

static const char * const builtin_range_diff_usage[] = {
N_("git range-diff [<options>] <old-base>..<old-tip> <new-base>..<new-tip>"),
N_("git range-diff [<options>] <old-tip>...<new-tip>"),
N_("git range-diff [<options>] <base> <old-tip> <new-tip>"),
NULL
};

static struct strbuf *output_prefix_cb(struct diff_options *opt, void *data)
{
	return data;
}

int cmd_range_diff(int argc, const char **argv, const char *prefix)
{
	int creation_factor = 60;
	struct diff_options diffopt = { NULL };
	int dual_color = 0;
	struct option options[] = {
		OPT_INTEGER(0, "creation-factor", &creation_factor,
			    N_("Percentage by which creation is weighted")),
		OPT_BOOL(0, "dual-color", &dual_color,
			    N_("color both diff and diff-between-diffs")),
		OPT_END()
	};
	int i, j, res = 0;
	struct strbuf four_spaces = STRBUF_INIT;
	struct strbuf range1 = STRBUF_INIT, range2 = STRBUF_INIT;

	git_config(git_diff_ui_config, NULL);

	diff_setup(&diffopt);
	diffopt.output_format = DIFF_FORMAT_PATCH;
	diffopt.flags.suppress_diff_headers = 1;
	diffopt.output_prefix = output_prefix_cb;
	strbuf_addstr(&four_spaces, "    ");
	diffopt.output_prefix_data = &four_spaces;

	argc = parse_options(argc, argv, NULL, options,
			     builtin_range_diff_usage, PARSE_OPT_KEEP_UNKNOWN |
			     PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);

	for (i = j = 1; i < argc && strcmp("--", argv[i]); ) {
		int c = diff_opt_parse(&diffopt, argv + i, argc - i, prefix);

		if (!c)
			argv[j++] = argv[i++];
		else
			i += c;
	}
	argc = j;
	diff_setup_done(&diffopt);

	/* Make sure that there are no unparsed options */
	argc = parse_options(argc, argv, NULL,
			     options + ARRAY_SIZE(options) - 1, /* OPT_END */
			     builtin_range_diff_usage, 0);

	if (dual_color) {
		diffopt.use_color = 1;
		diffopt.flags.dual_color_diffed_diffs = 1;
	}

	if (argc == 2) {
		if (!strstr(argv[0], ".."))
			die(_("no .. in range: '%s'"), argv[0]);
		strbuf_addstr(&range1, argv[0]);

		if (!strstr(argv[1], ".."))
			die(_("no .. in range: '%s'"), argv[1]);
		strbuf_addstr(&range2, argv[1]);
	} else if (argc == 3) {
		strbuf_addf(&range1, "%s..%s", argv[0], argv[1]);
		strbuf_addf(&range2, "%s..%s", argv[0], argv[2]);
	} else if (argc == 1) {
		const char *b = strstr(argv[0], "..."), *a = argv[0];
		int a_len;

		if (!b) {
			error(_("single arg format must be symmetric range"));
			usage_with_options(builtin_range_diff_usage, options);
		}

		a_len = (int)(b - a);
		if (!a_len) {
			a = "HEAD";
			a_len = strlen(a);
		}
		b += 3;
		if (!*b)
			b = "HEAD";
		strbuf_addf(&range1, "%s..%.*s", b, a_len, a);
		strbuf_addf(&range2, "%.*s..%s", a_len, a, b);
	} else {
		error(_("need two commit ranges"));
		usage_with_options(builtin_range_diff_usage, options);
	}

	res = show_range_diff(range1.buf, range2.buf, creation_factor,
			      &diffopt);

	strbuf_release(&range1);
	strbuf_release(&range2);
	strbuf_release(&four_spaces);

	return res;
}
debug log:

solving da3ad3eba ...
found da3ad3eba in https://public-inbox.org/git/c32a24f6aa12950dbed6079160a3aa8b9e62dc4c.1533939264.git.gitgitgadget@gmail.com/
found bc7a2fb76 in https://public-inbox.org/git/eb94d1982ea06abd11ff3f2e120cf7b4ef09a869.1533939264.git.gitgitgadget@gmail.com/
found f6df3f19a in https://public-inbox.org/git/ca8de8c75da1fd2cc2dcb4bf1cc3e4b11696c6f6.1533939264.git.gitgitgadget@gmail.com/
found 19192ab31 in https://public-inbox.org/git/9e1e660077d41c479ae46eb07371204c01dff4cd.1533939264.git.gitgitgadget@gmail.com/
found 94c1f362c in https://80x24.org/mirrors/git.git
preparing index
index prepared:
100644 94c1f362cc4feec11c2ab622f9399c1dff7e2840	builtin/range-diff.c

applying [1/4] https://public-inbox.org/git/9e1e660077d41c479ae46eb07371204c01dff4cd.1533939264.git.gitgitgadget@gmail.com/
diff --git a/builtin/range-diff.c b/builtin/range-diff.c
index 94c1f362c..19192ab31 100644


applying [2/4] https://public-inbox.org/git/ca8de8c75da1fd2cc2dcb4bf1cc3e4b11696c6f6.1533939264.git.gitgitgadget@gmail.com/
diff --git a/builtin/range-diff.c b/builtin/range-diff.c
index 19192ab31..f6df3f19a 100644


applying [3/4] https://public-inbox.org/git/eb94d1982ea06abd11ff3f2e120cf7b4ef09a869.1533939264.git.gitgitgadget@gmail.com/
diff --git a/builtin/range-diff.c b/builtin/range-diff.c
index f6df3f19a..bc7a2fb76 100644


applying [4/4] https://public-inbox.org/git/c32a24f6aa12950dbed6079160a3aa8b9e62dc4c.1533939264.git.gitgitgadget@gmail.com/
diff --git a/builtin/range-diff.c b/builtin/range-diff.c
index bc7a2fb76..da3ad3eba 100644

Checking patch builtin/range-diff.c...
Applied patch builtin/range-diff.c cleanly.
Checking patch builtin/range-diff.c...
Applied patch builtin/range-diff.c cleanly.
Checking patch builtin/range-diff.c...
Applied patch builtin/range-diff.c cleanly.
Checking patch builtin/range-diff.c...
Applied patch builtin/range-diff.c cleanly.

index at:
100644 da3ad3ebabfffd1f05de5e15cb4d5ae3b5585efa	builtin/range-diff.c

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