#include "packfile.h"
#include "parse-options.h"
#include "help.h"
+#include "fetch-object.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
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)
{
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,
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();
/*
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
*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));
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,
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)
{
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)
{
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)
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)
{
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)
{
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[] = {
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,
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>"),
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,
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 },
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 = "";
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)
return dst - line;
}
+void flush_one_hunk(struct object_id *result, git_SHA_CTX *ctx)
+{
+ unsigned char hash[GIT_MAX_RAWSZ];
+ unsigned short carry = 0;
+ int i;
+
+ git_SHA1_Final(hash, ctx);
+ git_SHA1_Init(ctx);
+ /* 20-byte sum, with carry */
+ for (i = 0; i < GIT_SHA1_RAWSZ; ++i) {
+ carry += result->hash[i] + hash[i];
+ result->hash[i] = carry;
+ carry >>= 8;
+ }
+}
+
static void patch_id_consume(void *priv, char *line, unsigned long len)
{
struct patch_id_t *data = priv;
git_SHA1_Update(ctx, buf, len);
}
-/* returns 0 upon success, and writes result into sha1 */
-static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only)
+/* returns 0 upon success, and writes result into oid */
+static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only, int stable)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
git_SHA1_Init(&ctx);
memset(&data, 0, sizeof(struct patch_id_t));
data.ctx = &ctx;
+ oidclr(oid);
for (i = 0; i < q->nr; i++) {
xpparam_t xpp;
patch_id_consume, &data, &xpp, &xecfg))
return error("unable to generate patch-id diff for %s",
p->one->path);
+
+ if (stable)
+ flush_one_hunk(oid, &ctx);
}
- git_SHA1_Final(oid->hash, &ctx);
+ if (!stable)
+ git_SHA1_Final(oid->hash, &ctx);
+
return 0;
}
-int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only)
+int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only, int stable)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
- int result = diff_get_patch_id(options, oid, diff_header_only);
+ int result = diff_get_patch_id(options, oid, diff_header_only, stable);
for (i = 0; i < q->nr; i++)
diff_free_filepair(q->queue[i]);
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);