diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 727 |
1 files changed, 438 insertions, 289 deletions
@@ -25,6 +25,7 @@ #include "packfile.h" #include "parse-options.h" #include "help.h" +#include "fetch-object.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@ -4205,6 +4206,8 @@ static void run_external_diff(const char *pgm, argv_array_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter); argv_array_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr); + diff_free_filespec_data(one); + diff_free_filespec_data(two); if (run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv)) die(_("external diff died, stopping at %s"), name); @@ -4640,66 +4643,6 @@ void diff_setup_done(struct diff_options *options) FREE_AND_NULL(options->parseopts); } -static int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val) -{ - char c, *eq; - int len; - - if (*arg != '-') - return 0; - c = *++arg; - if (!c) - return 0; - if (c == arg_short) { - c = *++arg; - if (!c) - return 1; - if (val && isdigit(c)) { - char *end; - int n = strtoul(arg, &end, 10); - if (*end) - return 0; - *val = n; - return 1; - } - return 0; - } - if (c != '-') - return 0; - arg++; - eq = strchrnul(arg, '='); - len = eq - arg; - if (!len || strncmp(arg, arg_long, len)) - return 0; - if (*eq) { - int n; - char *end; - if (!isdigit(*++eq)) - return 0; - n = strtoul(eq, &end, 10); - if (*end) - return 0; - *val = n; - } - return 1; -} - -static inline int short_opt(char opt, const char **argv, - const char **optarg) -{ - const char *arg = argv[0]; - if (arg[0] != '-' || arg[1] != opt) - return 0; - if (arg[2] != '\0') { - *optarg = arg + 2; - return 1; - } - if (!argv[1]) - die("Option '%c' requires a value", opt); - *optarg = argv[1]; - return 2; -} - int parse_long_opt(const char *opt, const char **argv, const char **optarg) { @@ -4788,14 +4731,6 @@ static int parse_dirstat_opt(struct diff_options *options, const char *params) return 1; } -static int parse_submodule_opt(struct diff_options *options, const char *value) -{ - if (parse_submodule_params(options, value)) - die(_("Failed to parse --submodule option parameter: '%s'"), - value); - return 1; -} - static const char diff_status_letters[] = { DIFF_STATUS_ADDED, DIFF_STATUS_COPIED, @@ -4827,10 +4762,19 @@ static unsigned filter_bit_tst(char status, const struct diff_options *opt) return opt->filter & filter_bit[(int) status]; } -static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) +unsigned diff_filter_bit(char status) +{ + prepare_filter_bits(); + return filter_bit[(int) status]; +} + +static int diff_opt_diff_filter(const struct option *option, + const char *optarg, int unset) { + struct diff_options *opt = option->value; int i, optch; + BUG_ON_OPT_NEG(unset); prepare_filter_bits(); /* @@ -4861,7 +4805,8 @@ static int parse_diff_filter_opt(const char *optarg, struct diff_options *opt) bit = (0 <= optch && optch <= 'Z') ? filter_bit[optch] : 0; if (!bit) - return optarg[i]; + return error(_("unknown change class '%c' in --diff-filter=%s"), + optarg[i], optarg); if (negate) opt->filter &= ~bit; else @@ -4876,25 +4821,29 @@ static void enable_patch_output(int *fmt) *fmt |= DIFF_FORMAT_PATCH; } -static int parse_ws_error_highlight_opt(struct diff_options *opt, const char *arg) +static int diff_opt_ws_error_highlight(const struct option *option, + const char *arg, int unset) { + struct diff_options *opt = option->value; int val = parse_ws_error_highlight(arg); - if (val < 0) { - error("unknown value after ws-error-highlight=%.*s", - -1 - val, arg); - return 0; - } + BUG_ON_OPT_NEG(unset); + if (val < 0) + return error(_("unknown value after ws-error-highlight=%.*s"), + -1 - val, arg); opt->ws_error_highlight = val; - return 1; + return 0; } -static int parse_objfind_opt(struct diff_options *opt, const char *arg) +static int diff_opt_find_object(const struct option *option, + const char *arg, int unset) { + struct diff_options *opt = option->value; struct object_id oid; + BUG_ON_OPT_NEG(unset); if (get_oid(arg, &oid)) - return error("unable to resolve '%s'", arg); + return error(_("unable to resolve '%s'"), arg); if (!opt->objfind) opt->objfind = xcalloc(1, sizeof(*opt->objfind)); @@ -4903,7 +4852,32 @@ static int parse_objfind_opt(struct diff_options *opt, const char *arg) opt->flags.recursive = 1; opt->flags.tree_in_recursive = 1; oidset_insert(opt->objfind, &oid); - return 1; + return 0; +} + +static int diff_opt_anchored(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); + ALLOC_GROW(options->anchors, options->anchors_nr + 1, + options->anchors_alloc); + options->anchors[options->anchors_nr++] = xstrdup(arg); + return 0; +} + +static int diff_opt_binary(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(arg); + enable_patch_output(&options->output_format); + options->flags.binary = 1; + return 0; } static int diff_opt_break_rewrites(const struct option *opt, @@ -4943,6 +4917,57 @@ static int diff_opt_char(const struct option *opt, return 0; } +static int diff_opt_color_moved(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + if (unset) { + options->color_moved = COLOR_MOVED_NO; + } else if (!arg) { + if (diff_color_moved_default) + options->color_moved = diff_color_moved_default; + if (options->color_moved == COLOR_MOVED_NO) + options->color_moved = COLOR_MOVED_DEFAULT; + } else { + int cm = parse_color_moved(arg); + if (cm < 0) + return error(_("bad --color-moved argument: %s"), arg); + options->color_moved = cm; + } + return 0; +} + +static int diff_opt_color_moved_ws(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + unsigned cm; + + if (unset) { + options->color_moved_ws_handling = 0; + return 0; + } + + cm = parse_color_moved_ws(arg); + if (cm & COLOR_MOVED_WS_ERROR) + return error(_("invalid mode '%s' in --color-moved-ws"), arg); + options->color_moved_ws_handling = cm; + return 0; +} + +static int diff_opt_color_words(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->use_color = 1; + options->word_diff = DIFF_WORDS_COLOR; + options->word_regex = arg; + return 0; +} + static int diff_opt_compact_summary(const struct option *opt, const char *arg, int unset) { @@ -4958,6 +4983,24 @@ static int diff_opt_compact_summary(const struct option *opt, return 0; } +static int diff_opt_diff_algorithm(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + long value = parse_algorithm_value(arg); + + BUG_ON_OPT_NEG(unset); + if (value < 0) + return error(_("option diff-algorithm accepts \"myers\", " + "\"minimal\", \"patience\" and \"histogram\"")); + + /* clear out previous settings */ + DIFF_XDL_CLR(options, NEED_MINIMAL); + options->xdl_opts &= ~XDF_DIFF_ALGORITHM_MASK; + options->xdl_opts |= value; + return 0; +} + static int diff_opt_dirstat(const struct option *opt, const char *arg, int unset) { @@ -5010,6 +5053,58 @@ static int diff_opt_find_renames(const struct option *opt, return 0; } +static int diff_opt_follow(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_ARG(arg); + if (unset) { + options->flags.follow_renames = 0; + options->flags.default_follow_renames = 0; + } else { + options->flags.follow_renames = 1; + } + return 0; +} + +static int diff_opt_ignore_submodules(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (!arg) + arg = "all"; + options->flags.override_submodule_config = 1; + handle_ignore_submodules_arg(options, arg); + return 0; +} + +static int diff_opt_line_prefix(const struct option *opt, + const char *optarg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->line_prefix = optarg; + options->line_prefix_length = strlen(options->line_prefix); + graph_setup_line_prefix(options); + return 0; +} + +static int diff_opt_no_prefix(const struct option *opt, + const char *optarg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(optarg); + options->a_prefix = ""; + options->b_prefix = ""; + return 0; +} + static enum parse_opt_result diff_opt_output(struct parse_opt_ctx_t *ctx, const struct option *opt, const char *arg, int unset) @@ -5027,6 +5122,48 @@ static enum parse_opt_result diff_opt_output(struct parse_opt_ctx_t *ctx, return 0; } +static int diff_opt_patience(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + int i; + + BUG_ON_OPT_NEG(unset); + BUG_ON_OPT_ARG(arg); + options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); + /* + * Both --patience and --anchored use PATIENCE_DIFF + * internally, so remove any anchors previously + * specified. + */ + for (i = 0; i < options->anchors_nr; i++) + free(options->anchors[i]); + options->anchors_nr = 0; + return 0; +} + +static int diff_opt_pickaxe_regex(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->pickaxe = arg; + options->pickaxe_opts |= DIFF_PICKAXE_KIND_G; + return 0; +} + +static int diff_opt_pickaxe_string(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + options->pickaxe = arg; + options->pickaxe_opts |= DIFF_PICKAXE_KIND_S; + return 0; +} + static int diff_opt_relative(const struct option *opt, const char *arg, int unset) { @@ -5039,6 +5176,35 @@ static int diff_opt_relative(const struct option *opt, return 0; } +static int diff_opt_submodule(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (!arg) + arg = "log"; + if (parse_submodule_params(options, arg)) + return error(_("failed to parse --submodule option parameter: '%s'"), + arg); + return 0; +} + +static int diff_opt_textconv(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_ARG(arg); + if (unset) { + options->flags.allow_textconv = 0; + } else { + options->flags.allow_textconv = 1; + options->flags.textconv_set_via_cmdline = 1; + } + return 0; +} + static int diff_opt_unified(const struct option *opt, const char *arg, int unset) { @@ -5047,14 +5213,54 @@ static int diff_opt_unified(const struct option *opt, BUG_ON_OPT_NEG(unset); - options->context = strtol(arg, &s, 10); - if (*s) - return error(_("%s expects a numerical value"), "--unified"); + if (arg) { + options->context = strtol(arg, &s, 10); + if (*s) + return error(_("%s expects a numerical value"), "--unified"); + } enable_patch_output(&options->output_format); return 0; } +static int diff_opt_word_diff(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (arg) { + if (!strcmp(arg, "plain")) + options->word_diff = DIFF_WORDS_PLAIN; + else if (!strcmp(arg, "color")) { + options->use_color = 1; + options->word_diff = DIFF_WORDS_COLOR; + } + else if (!strcmp(arg, "porcelain")) + options->word_diff = DIFF_WORDS_PORCELAIN; + else if (!strcmp(arg, "none")) + options->word_diff = DIFF_WORDS_NONE; + else + return error(_("bad --word-diff argument: %s"), arg); + } else { + if (options->word_diff == DIFF_WORDS_NONE) + options->word_diff = DIFF_WORDS_PLAIN; + } + return 0; +} + +static int diff_opt_word_diff_regex(const struct option *opt, + const char *arg, int unset) +{ + struct diff_options *options = opt->value; + + BUG_ON_OPT_NEG(unset); + if (options->word_diff == DIFF_WORDS_NONE) + options->word_diff = DIFF_WORDS_PLAIN; + options->word_regex = arg; + return 0; +} + static void prep_parse_options(struct diff_options *options) { struct option parseopts[] = { @@ -5070,7 +5276,7 @@ static void prep_parse_options(struct diff_options *options) DIFF_FORMAT_PATCH, DIFF_FORMAT_NO_OUTPUT), OPT_CALLBACK_F('U', "unified", options, N_("<n>"), N_("generate diffs with <n> lines context"), - PARSE_OPT_NONEG, diff_opt_unified), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_unified), OPT_BOOL('W', "function-context", &options->flags.funccontext, N_("generate diffs with <n> lines context")), OPT_BIT_F(0, "raw", &options->output_format, @@ -5132,6 +5338,35 @@ static void prep_parse_options(struct diff_options *options) OPT_CALLBACK_F(0, "compact-summary", options, NULL, N_("generate compact summary in diffstat"), PARSE_OPT_NOARG, diff_opt_compact_summary), + OPT_CALLBACK_F(0, "binary", options, NULL, + N_("output a binary diff that can be applied"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_binary), + OPT_BOOL(0, "full-index", &options->flags.full_index, + N_("show full pre- and post-image object names on the \"index\" lines")), + OPT_COLOR_FLAG(0, "color", &options->use_color, + N_("show colored diff")), + OPT_CALLBACK_F(0, "ws-error-highlight", options, N_("<kind>"), + N_("highlight whitespace errors in the 'context', 'old' or 'new' lines in the diff"), + PARSE_OPT_NONEG, diff_opt_ws_error_highlight), + OPT_SET_INT('z', NULL, &options->line_termination, + N_("do not munge pathnames and use NULs as output field terminators in --raw or --numstat"), + 0), + OPT__ABBREV(&options->abbrev), + OPT_STRING_F(0, "src-prefix", &options->a_prefix, N_("<prefix>"), + N_("show the given source prefix instead of \"a/\""), + PARSE_OPT_NONEG), + OPT_STRING_F(0, "dst-prefix", &options->b_prefix, N_("<prefix>"), + N_("show the given destination prefix instead of \"b/\""), + PARSE_OPT_NONEG), + OPT_CALLBACK_F(0, "line-prefix", options, N_("<prefix>"), + N_("prepend an additional prefix to every line of output"), + PARSE_OPT_NONEG, diff_opt_line_prefix), + OPT_CALLBACK_F(0, "no-prefix", options, NULL, + N_("do not show any source or destination prefix"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_no_prefix), + OPT_INTEGER_F(0, "inter-hunk-context", &options->interhunkcontext, + N_("show context between diff hunks up to the specified number of lines"), + PARSE_OPT_NONEG), OPT_CALLBACK_F(0, "output-indicator-new", &options->output_indicators[OUTPUT_INDICATOR_NEW], N_("<char>"), @@ -5171,6 +5406,11 @@ static void prep_parse_options(struct diff_options *options) 0, PARSE_OPT_NONEG), OPT_BOOL(0, "rename-empty", &options->flags.rename_empty, N_("use empty blobs as rename source")), + OPT_CALLBACK_F(0, "follow", options, NULL, + N_("continue listing the history of a file beyond renames"), + PARSE_OPT_NOARG, diff_opt_follow), + OPT_INTEGER('l', NULL, &options->rename_limit, + N_("prevent rename/copy detection if the number of rename/copy targets exceeds given limit")), OPT_GROUP(N_("Diff algorithm options")), OPT_BIT(0, "minimal", &options->xdl_opts, @@ -5191,12 +5431,90 @@ static void prep_parse_options(struct diff_options *options) OPT_BIT_F(0, "ignore-blank-lines", &options->xdl_opts, N_("ignore changes whose lines are all blank"), XDF_IGNORE_BLANK_LINES, PARSE_OPT_NONEG), - - OPT_GROUP(N_("Diff other options")), + OPT_BIT(0, "indent-heuristic", &options->xdl_opts, + N_("heuristic to shift diff hunk boundaries for easy reading"), + XDF_INDENT_HEURISTIC), + OPT_CALLBACK_F(0, "patience", options, NULL, + N_("generate diff using the \"patience diff\" algorithm"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, + diff_opt_patience), + OPT_BITOP(0, "histogram", &options->xdl_opts, + N_("generate diff using the \"histogram diff\" algorithm"), + XDF_HISTOGRAM_DIFF, XDF_DIFF_ALGORITHM_MASK), + OPT_CALLBACK_F(0, "diff-algorithm", options, N_("<algorithm>"), + N_("choose a diff algorithm"), + PARSE_OPT_NONEG, diff_opt_diff_algorithm), + OPT_CALLBACK_F(0, "anchored", options, N_("<text>"), + N_("generate diff using the \"anchored diff\" algorithm"), + PARSE_OPT_NONEG, diff_opt_anchored), + OPT_CALLBACK_F(0, "word-diff", options, N_("<mode>"), + N_("show word diff, using <mode> to delimit changed words"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_word_diff), + OPT_CALLBACK_F(0, "word-diff-regex", options, N_("<regex>"), + N_("use <regex> to decide what a word is"), + PARSE_OPT_NONEG, diff_opt_word_diff_regex), + OPT_CALLBACK_F(0, "color-words", options, N_("<regex>"), + N_("equivalent to --word-diff=color --word-diff-regex=<regex>"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_color_words), + OPT_CALLBACK_F(0, "color-moved", options, N_("<mode>"), + N_("moved lines of code are colored differently"), + PARSE_OPT_OPTARG, diff_opt_color_moved), + OPT_CALLBACK_F(0, "color-moved-ws", options, N_("<mode>"), + N_("how white spaces are ignored in --color-moved"), + 0, diff_opt_color_moved_ws), + + OPT_GROUP(N_("Other diff options")), OPT_CALLBACK_F(0, "relative", options, N_("<prefix>"), N_("when run from subdir, exclude changes outside and show relative paths"), PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_relative), + OPT_BOOL('a', "text", &options->flags.text, + N_("treat all files as text")), + OPT_BOOL('R', NULL, &options->flags.reverse_diff, + N_("swap two inputs, reverse the diff")), + OPT_BOOL(0, "exit-code", &options->flags.exit_with_status, + N_("exit with 1 if there were differences, 0 otherwise")), + OPT_BOOL(0, "quiet", &options->flags.quick, + N_("disable all output of the program")), + OPT_BOOL(0, "ext-diff", &options->flags.allow_external, + N_("allow an external diff helper to be executed")), + OPT_CALLBACK_F(0, "textconv", options, NULL, + N_("run external text conversion filters when comparing binary files"), + PARSE_OPT_NOARG, diff_opt_textconv), + OPT_CALLBACK_F(0, "ignore-submodules", options, N_("<when>"), + N_("ignore changes to submodules in the diff generation"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_ignore_submodules), + OPT_CALLBACK_F(0, "submodule", options, N_("<format>"), + N_("specify how differences in submodules are shown"), + PARSE_OPT_NONEG | PARSE_OPT_OPTARG, + diff_opt_submodule), + OPT_SET_INT_F(0, "ita-invisible-in-index", &options->ita_invisible_in_index, + N_("hide 'git add -N' entries from the index"), + 1, PARSE_OPT_NONEG), + OPT_SET_INT_F(0, "ita-visible-in-index", &options->ita_invisible_in_index, + N_("treat 'git add -N' entries as real in the index"), + 0, PARSE_OPT_NONEG), + OPT_CALLBACK_F('S', NULL, options, N_("<string>"), + N_("look for differences that change the number of occurrences of the specified string"), + 0, diff_opt_pickaxe_string), + OPT_CALLBACK_F('G', NULL, options, N_("<regex>"), + N_("look for differences that change the number of occurrences of the specified regex"), + 0, diff_opt_pickaxe_regex), + OPT_BIT_F(0, "pickaxe-all", &options->pickaxe_opts, + N_("show all changes in the changeset with -S or -G"), + DIFF_PICKAXE_ALL, PARSE_OPT_NONEG), + OPT_BIT_F(0, "pickaxe-regex", &options->pickaxe_opts, + N_("treat <string> in -S as extended POSIX regular expression"), + DIFF_PICKAXE_REGEX, PARSE_OPT_NONEG), + OPT_FILENAME('O', NULL, &options->orderfile, + N_("control the order in which files appear in the output")), + OPT_CALLBACK_F(0, "find-object", options, N_("<object-id>"), + N_("look for differences that change the number of occurrences of the specified object"), + PARSE_OPT_NONEG, diff_opt_find_object), + OPT_CALLBACK_F(0, "diff-filter", options, N_("[(A|C|D|M|R|T|U|X|B)...[*]]"), + N_("select files by diff type"), + PARSE_OPT_NONEG, diff_opt_diff_filter), { OPTION_CALLBACK, 0, "output", options, N_("<file>"), N_("Output to a specific file"), PARSE_OPT_NONEG, NULL, 0, diff_opt_output }, @@ -5211,10 +5529,6 @@ static void prep_parse_options(struct diff_options *options) int diff_opt_parse(struct diff_options *options, const char **av, int ac, const char *prefix) { - const char *arg = av[0]; - const char *optarg; - int argcount; - if (!prefix) prefix = ""; @@ -5225,205 +5539,7 @@ int diff_opt_parse(struct diff_options *options, PARSE_OPT_ONE_SHOT | PARSE_OPT_STOP_AT_NON_OPTION); - if (ac) - return ac; - - /* xdiff options */ - if (!strcmp(arg, "--indent-heuristic")) - DIFF_XDL_SET(options, INDENT_HEURISTIC); - else if (!strcmp(arg, "--no-indent-heuristic")) - DIFF_XDL_CLR(options, INDENT_HEURISTIC); - else if (!strcmp(arg, "--patience")) { - int i; - options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); - /* - * Both --patience and --anchored use PATIENCE_DIFF - * internally, so remove any anchors previously - * specified. - */ - for (i = 0; i < options->anchors_nr; i++) - free(options->anchors[i]); - options->anchors_nr = 0; - } else if (!strcmp(arg, "--histogram")) - options->xdl_opts = DIFF_WITH_ALG(options, HISTOGRAM_DIFF); - else if ((argcount = parse_long_opt("diff-algorithm", av, &optarg))) { - long value = parse_algorithm_value(optarg); - if (value < 0) - return error("option diff-algorithm accepts \"myers\", " - "\"minimal\", \"patience\" and \"histogram\""); - /* clear out previous settings */ - DIFF_XDL_CLR(options, NEED_MINIMAL); - options->xdl_opts &= ~XDF_DIFF_ALGORITHM_MASK; - options->xdl_opts |= value; - return argcount; - } else if (skip_prefix(arg, "--anchored=", &arg)) { - options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF); - ALLOC_GROW(options->anchors, options->anchors_nr + 1, - options->anchors_alloc); - options->anchors[options->anchors_nr++] = xstrdup(arg); - } - - /* flags options */ - else if (!strcmp(arg, "--binary")) { - enable_patch_output(&options->output_format); - options->flags.binary = 1; - } - else if (!strcmp(arg, "--full-index")) - options->flags.full_index = 1; - else if (!strcmp(arg, "-a") || !strcmp(arg, "--text")) - options->flags.text = 1; - else if (!strcmp(arg, "-R")) - options->flags.reverse_diff = 1; - else if (!strcmp(arg, "--follow")) - options->flags.follow_renames = 1; - else if (!strcmp(arg, "--no-follow")) { - options->flags.follow_renames = 0; - options->flags.default_follow_renames = 0; - } else if (skip_to_optional_arg_default(arg, "--color", &arg, "always")) { - int value = git_config_colorbool(NULL, arg); - if (value < 0) - return error("option `color' expects \"always\", \"auto\", or \"never\""); - options->use_color = value; - } - else if (!strcmp(arg, "--no-color")) - options->use_color = 0; - else if (!strcmp(arg, "--color-moved")) { - if (diff_color_moved_default) - options->color_moved = diff_color_moved_default; - if (options->color_moved == COLOR_MOVED_NO) - options->color_moved = COLOR_MOVED_DEFAULT; - } else if (!strcmp(arg, "--no-color-moved")) - options->color_moved = COLOR_MOVED_NO; - else if (skip_prefix(arg, "--color-moved=", &arg)) { - int cm = parse_color_moved(arg); - if (cm < 0) - return error("bad --color-moved argument: %s", arg); - options->color_moved = cm; - } else if (!strcmp(arg, "--no-color-moved-ws")) { - options->color_moved_ws_handling = 0; - } else if (skip_prefix(arg, "--color-moved-ws=", &arg)) { - unsigned cm = parse_color_moved_ws(arg); - if (cm & COLOR_MOVED_WS_ERROR) - return -1; - options->color_moved_ws_handling = cm; - } else if (skip_to_optional_arg_default(arg, "--color-words", &options->word_regex, NULL)) { - options->use_color = 1; - options->word_diff = DIFF_WORDS_COLOR; - } - else if (!strcmp(arg, "--word-diff")) { - if (options->word_diff == DIFF_WORDS_NONE) - options->word_diff = DIFF_WORDS_PLAIN; - } - else if (skip_prefix(arg, "--word-diff=", &arg)) { - if (!strcmp(arg, "plain")) - options->word_diff = DIFF_WORDS_PLAIN; - else if (!strcmp(arg, "color")) { - options->use_color = 1; - options->word_diff = DIFF_WORDS_COLOR; - } - else if (!strcmp(arg, "porcelain")) - options->word_diff = DIFF_WORDS_PORCELAIN; - else if (!strcmp(arg, "none")) - options->word_diff = DIFF_WORDS_NONE; - else - die("bad --word-diff argument: %s", arg); - } - else if ((argcount = parse_long_opt("word-diff-regex", av, &optarg))) { - if (options->word_diff == DIFF_WORDS_NONE) - options->word_diff = DIFF_WORDS_PLAIN; - options->word_regex = optarg; - return argcount; - } - else if (!strcmp(arg, "--exit-code")) - options->flags.exit_with_status = 1; - else if (!strcmp(arg, "--quiet")) - options->flags.quick = 1; - else if (!strcmp(arg, "--ext-diff")) - options->flags.allow_external = 1; - else if (!strcmp(arg, "--no-ext-diff")) - options->flags.allow_external = 0; - else if (!strcmp(arg, "--textconv")) { - options->flags.allow_textconv = 1; - options->flags.textconv_set_via_cmdline = 1; - } else if (!strcmp(arg, "--no-textconv")) - options->flags.allow_textconv = 0; - else if (skip_to_optional_arg_default(arg, "--ignore-submodules", &arg, "all")) { - options->flags.override_submodule_config = 1; - handle_ignore_submodules_arg(options, arg); - } else if (skip_to_optional_arg_default(arg, "--submodule", &arg, "log")) - return parse_submodule_opt(options, arg); - else if (skip_prefix(arg, "--ws-error-highlight=", &arg)) - return parse_ws_error_highlight_opt(options, arg); - else if (!strcmp(arg, "--ita-invisible-in-index")) - options->ita_invisible_in_index = 1; - else if (!strcmp(arg, "--ita-visible-in-index")) - options->ita_invisible_in_index = 0; - - /* misc options */ - else if (!strcmp(arg, "-z")) - options->line_termination = 0; - else if ((argcount = short_opt('l', av, &optarg))) { - options->rename_limit = strtoul(optarg, NULL, 10); - return argcount; - } - else if ((argcount = short_opt('S', av, &optarg))) { - options->pickaxe = optarg; - options->pickaxe_opts |= DIFF_PICKAXE_KIND_S; - return argcount; - } else if ((argcount = short_opt('G', av, &optarg))) { - options->pickaxe = optarg; - options->pickaxe_opts |= DIFF_PICKAXE_KIND_G; - return argcount; - } - else if (!strcmp(arg, "--pickaxe-all")) - options->pickaxe_opts |= DIFF_PICKAXE_ALL; - else if (!strcmp(arg, "--pickaxe-regex")) - options->pickaxe_opts |= DIFF_PICKAXE_REGEX; - else if ((argcount = short_opt('O', av, &optarg))) { - options->orderfile = prefix_filename(prefix, optarg); - return argcount; - } else if (skip_prefix(arg, "--find-object=", &arg)) - return parse_objfind_opt(options, arg); - else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) { - int offending = parse_diff_filter_opt(optarg, options); - if (offending) - die("unknown change class '%c' in --diff-filter=%s", - offending, optarg); - return argcount; - } - else if (!strcmp(arg, "--no-abbrev")) - options->abbrev = 0; - else if (!strcmp(arg, "--abbrev")) - options->abbrev = DEFAULT_ABBREV; - else if (skip_prefix(arg, "--abbrev=", &arg)) { - options->abbrev = strtoul(arg, NULL, 10); - if (options->abbrev < MINIMUM_ABBREV) - options->abbrev = MINIMUM_ABBREV; - else if (the_hash_algo->hexsz < options->abbrev) - options->abbrev = the_hash_algo->hexsz; - } - else if ((argcount = parse_long_opt("src-prefix", av, &optarg))) { - options->a_prefix = optarg; - return argcount; - } - else if ((argcount = parse_long_opt("line-prefix", av, &optarg))) { - options->line_prefix = optarg; - options->line_prefix_length = strlen(options->line_prefix); - graph_setup_line_prefix(options); - return argcount; - } - else if ((argcount = parse_long_opt("dst-prefix", av, &optarg))) { - options->b_prefix = optarg; - return argcount; - } - else if (!strcmp(arg, "--no-prefix")) - options->a_prefix = options->b_prefix = ""; - else if (opt_arg(arg, '\0', "inter-hunk-context", - &options->interhunkcontext)) - ; - else - return 0; - return 1; + return ac; } int parse_rename_score(const char **cp_p) @@ -6366,8 +6482,41 @@ void diffcore_fix_diff_index(void) QSORT(q->queue, q->nr, diffnamecmp); } +static void add_if_missing(struct repository *r, + struct oid_array *to_fetch, + const struct diff_filespec *filespec) +{ + if (filespec && filespec->oid_valid && + oid_object_info_extended(r, &filespec->oid, NULL, + OBJECT_INFO_FOR_PREFETCH)) + oid_array_append(to_fetch, &filespec->oid); +} + void diffcore_std(struct diff_options *options) { + if (options->repo == the_repository && + repository_format_partial_clone) { + /* + * Prefetch the diff pairs that are about to be flushed. + */ + int i; + struct diff_queue_struct *q = &diff_queued_diff; + struct oid_array to_fetch = OID_ARRAY_INIT; + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + add_if_missing(options->repo, &to_fetch, p->one); + add_if_missing(options->repo, &to_fetch, p->two); + } + if (to_fetch.nr) + /* + * NEEDSWORK: Consider deduplicating the OIDs sent. + */ + fetch_objects(repository_format_partial_clone, + to_fetch.oid, to_fetch.nr); + oid_array_clear(&to_fetch); + } + /* NOTE please keep the following in sync with diff_tree_combined() */ if (options->skip_stat_unmatch) diffcore_skip_stat_unmatch(options); |