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d64db5b334
If a builtin uses RUN_SETUP to request that git.c enter the repository directory, we'll get passed in a "prefix" variable with the path to the original directory. It's important to pass this to parse_options(), since we may use it to fix up relative OPT_FILENAME() options. Some builtins don't bother; let's make sure we do so consistently. There may not be any particular bugs fixed here; OPT_FILENAME is actually pretty rare, and none of these commands use it directly. However, this does future-proof us against somebody adding an option that uses it and creating a subtle bug that only shows up when you're in a subdirectory of the repository. In some cases, like hash-object and upload-pack, we don't specify RUN_SETUP, so we know the prefix will always be empty. It's still worth passing the variable along to keep the idiom consistent across all builtins (and of course it protects us if they ever _did_ switch to using RUN_SETUP). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
#include "cache.h"
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#include "builtin.h"
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#include "parse-options.h"
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#include "range-diff.h"
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#include "config.h"
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static const char * const builtin_range_diff_usage[] = {
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N_("git range-diff [<options>] <old-base>..<old-tip> <new-base>..<new-tip>"),
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N_("git range-diff [<options>] <old-tip>...<new-tip>"),
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N_("git range-diff [<options>] <base> <old-tip> <new-tip>"),
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NULL
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};
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int cmd_range_diff(int argc, const char **argv, const char *prefix)
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{
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int creation_factor = RANGE_DIFF_CREATION_FACTOR_DEFAULT;
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struct diff_options diffopt = { NULL };
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int simple_color = -1;
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struct option range_diff_options[] = {
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OPT_INTEGER(0, "creation-factor", &creation_factor,
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N_("Percentage by which creation is weighted")),
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OPT_BOOL(0, "no-dual-color", &simple_color,
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N_("use simple diff colors")),
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OPT_END()
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};
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struct option *options;
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int res = 0;
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struct strbuf range1 = STRBUF_INIT, range2 = STRBUF_INIT;
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git_config(git_diff_ui_config, NULL);
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repo_diff_setup(the_repository, &diffopt);
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options = parse_options_concat(range_diff_options, diffopt.parseopts);
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argc = parse_options(argc, argv, prefix, options,
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builtin_range_diff_usage, 0);
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diff_setup_done(&diffopt);
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/* force color when --dual-color was used */
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if (!simple_color)
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diffopt.use_color = 1;
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if (argc == 2) {
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if (!strstr(argv[0], ".."))
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die(_("no .. in range: '%s'"), argv[0]);
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strbuf_addstr(&range1, argv[0]);
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if (!strstr(argv[1], ".."))
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die(_("no .. in range: '%s'"), argv[1]);
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strbuf_addstr(&range2, argv[1]);
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} else if (argc == 3) {
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strbuf_addf(&range1, "%s..%s", argv[0], argv[1]);
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strbuf_addf(&range2, "%s..%s", argv[0], argv[2]);
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} else if (argc == 1) {
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const char *b = strstr(argv[0], "..."), *a = argv[0];
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int a_len;
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if (!b) {
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error(_("single arg format must be symmetric range"));
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usage_with_options(builtin_range_diff_usage, options);
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}
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a_len = (int)(b - a);
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if (!a_len) {
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a = "HEAD";
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a_len = strlen(a);
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}
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b += 3;
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if (!*b)
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b = "HEAD";
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strbuf_addf(&range1, "%s..%.*s", b, a_len, a);
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strbuf_addf(&range2, "%.*s..%s", a_len, a, b);
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} else {
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error(_("need two commit ranges"));
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usage_with_options(builtin_range_diff_usage, options);
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}
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FREE_AND_NULL(options);
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res = show_range_diff(range1.buf, range2.buf, creation_factor,
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simple_color < 1, &diffopt);
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strbuf_release(&range1);
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strbuf_release(&range2);
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return res;
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}
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