* Copyright (C) 2005 Junio C Hamano
*/
#include "cache.h"
+#include "tempfile.h"
#include "quote.h"
#include "diff.h"
#include "diffcore.h"
#include "run-command.h"
#include "utf8.h"
#include "userdiff.h"
-#include "sigchain.h"
+#include "submodule-config.h"
#include "submodule.h"
#include "ll-merge.h"
#include "string-list.h"
#include "argv-array.h"
+#include "graph.h"
#ifdef NO_FAST_WORKING_DIRECTORY
#define FAST_WORKING_DIRECTORY 0
#endif
static int diff_detect_rename_default;
+static int diff_indent_heuristic; /* experimental */
static int diff_rename_limit_default = 400;
static int diff_suppress_blank_empty;
static int diff_use_color_default = -1;
static int diff_context_default = 3;
+static int diff_interhunk_context_default;
static const char *diff_word_regex_cfg;
static const char *external_diff_cmd_cfg;
static const char *diff_order_file_cfg;
static int diff_dirstat_permille_default = 30;
static struct diff_options default_diff_options;
static long diff_algorithm;
+static unsigned ws_error_highlight_default = WSEH_NEW;
static char diff_colors[][COLOR_MAXLEN] = {
GIT_COLOR_RESET,
GIT_COLOR_NORMAL, /* FUNCINFO */
};
+static NORETURN void die_want_option(const char *option_name)
+{
+ die(_("option '%s' requires a value"), option_name);
+}
+
static int parse_diff_color_slot(const char *var)
{
if (!strcasecmp(var, "context") || !strcasecmp(var, "plain"))
static int parse_submodule_params(struct diff_options *options, const char *value)
{
if (!strcmp(value, "log"))
- DIFF_OPT_SET(options, SUBMODULE_LOG);
+ options->submodule_format = DIFF_SUBMODULE_LOG;
else if (!strcmp(value, "short"))
- DIFF_OPT_CLR(options, SUBMODULE_LOG);
+ options->submodule_format = DIFF_SUBMODULE_SHORT;
+ else if (!strcmp(value, "diff"))
+ options->submodule_format = DIFF_SUBMODULE_INLINE_DIFF;
else
return -1;
return 0;
return -1;
}
+static int parse_one_token(const char **arg, const char *token)
+{
+ const char *rest;
+ if (skip_prefix(*arg, token, &rest) && (!*rest || *rest == ',')) {
+ *arg = rest;
+ return 1;
+ }
+ return 0;
+}
+
+static int parse_ws_error_highlight(const char *arg)
+{
+ const char *orig_arg = arg;
+ unsigned val = 0;
+
+ while (*arg) {
+ if (parse_one_token(&arg, "none"))
+ val = 0;
+ else if (parse_one_token(&arg, "default"))
+ val = WSEH_NEW;
+ else if (parse_one_token(&arg, "all"))
+ val = WSEH_NEW | WSEH_OLD | WSEH_CONTEXT;
+ else if (parse_one_token(&arg, "new"))
+ val |= WSEH_NEW;
+ else if (parse_one_token(&arg, "old"))
+ val |= WSEH_OLD;
+ else if (parse_one_token(&arg, "context"))
+ val |= WSEH_CONTEXT;
+ else {
+ return -1 - (int)(arg - orig_arg);
+ }
+ if (*arg)
+ arg++;
+ }
+ return val;
+}
+
/*
* These are to give UI layer defaults.
* The core-level commands such as git-diff-files should
* never be affected by the setting of diff.renames
* the user happens to have in the configuration file.
*/
+void init_diff_ui_defaults(void)
+{
+ diff_detect_rename_default = DIFF_DETECT_RENAME;
+}
+
+int git_diff_heuristic_config(const char *var, const char *value, void *cb)
+{
+ if (!strcmp(var, "diff.indentheuristic"))
+ diff_indent_heuristic = git_config_bool(var, value);
+ return 0;
+}
+
int git_diff_ui_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
return -1;
return 0;
}
+ if (!strcmp(var, "diff.interhunkcontext")) {
+ diff_interhunk_context_default = git_config_int(var, value);
+ if (diff_interhunk_context_default < 0)
+ return -1;
+ return 0;
+ }
if (!strcmp(var, "diff.renames")) {
diff_detect_rename_default = git_config_rename(var, value);
return 0;
return 0;
}
+ if (git_diff_heuristic_config(var, value, cb) < 0)
+ return -1;
+
+ if (!strcmp(var, "diff.wserrorhighlight")) {
+ int val = parse_ws_error_highlight(value);
+ if (val < 0)
+ return -1;
+ ws_error_highlight_default = val;
+ return 0;
+ }
+
if (git_color_config(var, value, cb) < 0)
return -1;
return external_diff_cmd;
}
+/*
+ * Keep track of files used for diffing. Sometimes such an entry
+ * refers to a temporary file, sometimes to an existing file, and
+ * sometimes to "/dev/null".
+ */
static struct diff_tempfile {
- const char *name; /* filename external diff should read from */
- char hex[41];
+ /*
+ * filename external diff should read from, or NULL if this
+ * entry is currently not in use:
+ */
+ const char *name;
+
+ char hex[GIT_MAX_HEXSZ + 1];
char mode[10];
- char tmp_path[PATH_MAX];
+
+ /*
+ * If this diff_tempfile instance refers to a temporary file,
+ * this tempfile object is used to manage its lifetime.
+ */
+ struct tempfile tempfile;
} diff_temp[2];
typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
const char **label_path;
struct diff_words_data *diff_words;
struct diff_options *opt;
- int *found_changesp;
struct strbuf *header;
};
die("BUG: diff is failing to clean up its tempfiles");
}
-static int remove_tempfile_installed;
-
static void remove_tempfile(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(diff_temp); i++) {
- if (diff_temp[i].name == diff_temp[i].tmp_path)
- unlink_or_warn(diff_temp[i].name);
+ if (is_tempfile_active(&diff_temp[i].tempfile))
+ delete_tempfile(&diff_temp[i].tempfile);
diff_temp[i].name = NULL;
}
}
-static void remove_tempfile_on_signal(int signo)
-{
- remove_tempfile();
- sigchain_pop(signo);
- raise(signo);
-}
-
static void print_line_count(FILE *file, int count)
{
switch (count) {
memset(&ecbdata, 0, sizeof(ecbdata));
ecbdata.color_diff = want_color(o->use_color);
- ecbdata.found_changesp = &o->found_changes;
ecbdata.ws_rule = whitespace_rule(name_b);
ecbdata.opt = o;
if (ecbdata.ws_rule & WS_BLANK_AT_EOF) {
/*
* '--color-words' algorithm can be described as:
*
- * 1. collect a the minus/plus lines of a diff hunk, divided into
+ * 1. collect the minus/plus lines of a diff hunk, divided into
* minus-lines and plus-lines;
*
* 2. break both minus-lines and plus-lines into words and
{
if (word_regex && *begin < buffer->size) {
regmatch_t match[1];
- if (!regexec(word_regex, buffer->ptr + *begin, 1, match, 0)) {
+ if (!regexec_buf(word_regex, buffer->ptr + *begin,
+ buffer->size - *begin, 1, match, 0)) {
char *p = memchr(buffer->ptr + *begin + match[0].rm_so,
'\n', match[0].rm_eo - match[0].rm_so);
*end = p ? p - buffer->ptr : match[0].rm_eo + *begin;
struct diff_options *o = ecbdata->opt;
const char *line_prefix = diff_line_prefix(o);
+ o->found_changes = 1;
+
if (ecbdata->header) {
- fprintf(ecbdata->opt->file, "%s", ecbdata->header->buf);
+ fprintf(o->file, "%s", ecbdata->header->buf);
strbuf_reset(ecbdata->header);
ecbdata->header = NULL;
}
- *(ecbdata->found_changesp) = 1;
if (ecbdata->label_path[0]) {
const char *name_a_tab, *name_b_tab;
name_a_tab = strchr(ecbdata->label_path[0], ' ') ? "\t" : "";
name_b_tab = strchr(ecbdata->label_path[1], ' ') ? "\t" : "";
- fprintf(ecbdata->opt->file, "%s%s--- %s%s%s\n",
+ fprintf(o->file, "%s%s--- %s%s%s\n",
line_prefix, meta, ecbdata->label_path[0], reset, name_a_tab);
- fprintf(ecbdata->opt->file, "%s%s+++ %s%s%s\n",
+ fprintf(o->file, "%s%s+++ %s%s%s\n",
line_prefix, meta, ecbdata->label_path[1], reset, name_b_tab);
ecbdata->label_path[0] = ecbdata->label_path[1] = NULL;
}
find_lno(line, ecbdata);
emit_hunk_header(ecbdata, line, len);
if (line[len-1] != '\n')
- putc('\n', ecbdata->opt->file);
- return;
- }
-
- if (len < 1) {
- emit_line(ecbdata->opt, reset, reset, line, len);
- if (ecbdata->diff_words
- && ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN)
- fputs("~\n", ecbdata->opt->file);
+ putc('\n', o->file);
return;
}
}
diff_words_flush(ecbdata);
if (ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) {
- emit_line(ecbdata->opt, context, reset, line, len);
- fputs("~\n", ecbdata->opt->file);
+ emit_line(o, context, reset, line, len);
+ fputs("~\n", o->file);
} else {
/*
* Skip the prefix character, if any. With
line++;
len--;
}
- emit_line(ecbdata->opt, context, reset, line, len);
+ emit_line(o, context, reset, line, len);
}
return;
}
default:
/* incomplete line at the end */
ecbdata->lno_in_preimage++;
- emit_line(ecbdata->opt,
- diff_get_color(ecbdata->color_diff, DIFF_CONTEXT),
+ emit_line(o, diff_get_color(ecbdata->color_diff, DIFF_CONTEXT),
reset, line, len);
break;
}
*/
if (options->stat_width == -1)
- width = term_columns() - options->output_prefix_length;
+ width = term_columns() - strlen(line_prefix);
else
width = options->stat_width ? options->stat_width : 80;
number_width = decimal_width(max_change) > number_width ?
name = p->two->path ? p->two->path : p->one->path;
- if (p->one->sha1_valid && p->two->sha1_valid)
- content_changed = hashcmp(p->one->sha1, p->two->sha1);
+ if (p->one->oid_valid && p->two->oid_valid)
+ content_changed = oidcmp(&p->one->oid, &p->two->oid);
else
content_changed = 1;
if (DIFF_FILE_VALID(p->one) && DIFF_FILE_VALID(p->two)) {
diff_populate_filespec(p->one, 0);
diff_populate_filespec(p->two, 0);
- diffcore_count_changes(p->one, p->two, NULL, NULL, 0,
+ diffcore_count_changes(p->one, p->two, NULL, NULL,
&copied, &added);
diff_free_filespec_data(p->one);
diff_free_filespec_data(p->two);
return;
/* Show all directories with more than x% of the changes */
- qsort(dir.files, dir.nr, sizeof(dir.files[0]), dirstat_compare);
+ QSORT(dir.files, dir.nr, dirstat_compare);
gather_dirstat(options, &dir, changed, "", 0);
}
return;
/* Show all directories with more than x% of the changes */
- qsort(dir.files, dir.nr, sizeof(dir.files[0]), dirstat_compare);
+ QSORT(dir.files, dir.nr, dirstat_compare);
gather_dirstat(options, &dir, changed, "", 0);
}
struct strbuf header = STRBUF_INIT;
const char *line_prefix = diff_line_prefix(o);
- if (DIFF_OPT_TST(o, SUBMODULE_LOG) &&
- (!one->mode || S_ISGITLINK(one->mode)) &&
- (!two->mode || S_ISGITLINK(two->mode))) {
+ diff_set_mnemonic_prefix(o, "a/", "b/");
+ if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
+ a_prefix = o->b_prefix;
+ b_prefix = o->a_prefix;
+ } else {
+ a_prefix = o->a_prefix;
+ b_prefix = o->b_prefix;
+ }
+
+ if (o->submodule_format == DIFF_SUBMODULE_LOG &&
+ (!one->mode || S_ISGITLINK(one->mode)) &&
+ (!two->mode || S_ISGITLINK(two->mode))) {
const char *del = diff_get_color_opt(o, DIFF_FILE_OLD);
const char *add = diff_get_color_opt(o, DIFF_FILE_NEW);
show_submodule_summary(o->file, one->path ? one->path : two->path,
line_prefix,
- one->sha1, two->sha1, two->dirty_submodule,
+ &one->oid, &two->oid,
+ two->dirty_submodule,
meta, del, add, reset);
return;
+ } else if (o->submodule_format == DIFF_SUBMODULE_INLINE_DIFF &&
+ (!one->mode || S_ISGITLINK(one->mode)) &&
+ (!two->mode || S_ISGITLINK(two->mode))) {
+ const char *del = diff_get_color_opt(o, DIFF_FILE_OLD);
+ const char *add = diff_get_color_opt(o, DIFF_FILE_NEW);
+ show_submodule_inline_diff(o->file, one->path ? one->path : two->path,
+ line_prefix,
+ &one->oid, &two->oid,
+ two->dirty_submodule,
+ meta, del, add, reset, o);
+ return;
}
if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
textconv_two = get_textconv(two);
}
- diff_set_mnemonic_prefix(o, "a/", "b/");
- if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
- a_prefix = o->b_prefix;
- b_prefix = o->a_prefix;
- } else {
- a_prefix = o->a_prefix;
- b_prefix = o->b_prefix;
- }
-
/* Never use a non-valid filename anywhere if at all possible */
name_a = DIFF_FILE_VALID(one) ? name_a : name_b;
name_b = DIFF_FILE_VALID(two) ? name_b : name_a;
if (!one->data && !two->data &&
S_ISREG(one->mode) && S_ISREG(two->mode) &&
!DIFF_OPT_TST(o, BINARY)) {
- if (!hashcmp(one->sha1, two->sha1)) {
+ if (!oidcmp(&one->oid, &two->oid)) {
if (must_show_header)
fprintf(o->file, "%s", header.buf);
goto free_ab_and_return;
memset(&ecbdata, 0, sizeof(ecbdata));
ecbdata.label_path = lbl;
ecbdata.color_diff = want_color(o->use_color);
- ecbdata.found_changesp = &o->found_changes;
ecbdata.ws_rule = whitespace_rule(name_b);
if (ecbdata.ws_rule & WS_BLANK_AT_EOF)
check_blank_at_eof(&mf1, &mf2, &ecbdata);
return;
}
- same_contents = !hashcmp(one->sha1, two->sha1);
+ same_contents = !oidcmp(&one->oid, &two->oid);
if (diff_filespec_is_binary(one) || diff_filespec_is_binary(two)) {
data->is_binary = 1;
struct diff_filespec *alloc_filespec(const char *path)
{
- int namelen = strlen(path);
- struct diff_filespec *spec = xmalloc(sizeof(*spec) + namelen + 1);
+ struct diff_filespec *spec;
- memset(spec, 0, sizeof(*spec));
- spec->path = (char *)(spec + 1);
- memcpy(spec->path, path, namelen+1);
+ FLEXPTR_ALLOC_STR(spec, path, path);
spec->count = 1;
spec->is_binary = -1;
return spec;
{
if (mode) {
spec->mode = canon_mode(mode);
- hashcpy(spec->sha1, sha1);
- spec->sha1_valid = sha1_valid;
+ hashcpy(spec->oid.hash, sha1);
+ spec->oid_valid = sha1_valid;
}
}
if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1))
return 0;
+ /*
+ * Similarly, if we'd have to convert the file contents anyway, that
+ * makes the optimization not worthwhile.
+ */
+ if (!want_file && would_convert_to_git(name))
+ return 0;
+
len = strlen(name);
pos = cache_name_pos(name, len);
if (pos < 0)
* This is not the sha1 we are looking for, or
* unreusable because it is not a regular file.
*/
- if (hashcmp(sha1, ce->sha1) || !S_ISREG(ce->ce_mode))
+ if (hashcmp(sha1, ce->oid.hash) || !S_ISREG(ce->ce_mode))
return 0;
/*
static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
{
- int len;
- char *data = xmalloc(100), *dirty = "";
+ struct strbuf buf = STRBUF_INIT;
+ char *dirty = "";
/* Are we looking at the work tree? */
if (s->dirty_submodule)
dirty = "-dirty";
- len = snprintf(data, 100,
- "Subproject commit %s%s\n", sha1_to_hex(s->sha1), dirty);
- s->data = data;
- s->size = len;
- s->should_free = 1;
+ strbuf_addf(&buf, "Subproject commit %s%s\n",
+ oid_to_hex(&s->oid), dirty);
+ s->size = buf.len;
if (size_only) {
s->data = NULL;
- free(data);
+ strbuf_release(&buf);
+ } else {
+ s->data = strbuf_detach(&buf, NULL);
+ s->should_free = 1;
}
return 0;
}
if (S_ISGITLINK(s->mode))
return diff_populate_gitlink(s, size_only);
- if (!s->sha1_valid ||
- reuse_worktree_file(s->path, s->sha1, 0)) {
+ if (!s->oid_valid ||
+ reuse_worktree_file(s->path, s->oid.hash, 0)) {
struct strbuf buf = STRBUF_INIT;
struct stat st;
int fd;
s->should_free = 1;
return 0;
}
- if (size_only)
+
+ /*
+ * Even if the caller would be happy with getting
+ * only the size, we cannot return early at this
+ * point if the path requires us to run the content
+ * conversion.
+ */
+ if (size_only && !would_convert_to_git(s->path))
return 0;
+
+ /*
+ * Note: this check uses xsize_t(st.st_size) that may
+ * not be the true size of the blob after it goes
+ * through convert_to_git(). This may not strictly be
+ * correct, but the whole point of big_file_threshold
+ * and is_binary check being that we want to avoid
+ * opening the file and inspecting the contents, this
+ * is probably fine.
+ */
if ((flags & CHECK_BINARY) &&
s->size > big_file_threshold && s->is_binary == -1) {
s->is_binary = 1;
else {
enum object_type type;
if (size_only || (flags & CHECK_BINARY)) {
- type = sha1_object_info(s->sha1, &s->size);
+ type = sha1_object_info(s->oid.hash, &s->size);
if (type < 0)
- die("unable to read %s", sha1_to_hex(s->sha1));
+ die("unable to read %s",
+ oid_to_hex(&s->oid));
if (size_only)
return 0;
if (s->size > big_file_threshold && s->is_binary == -1) {
return 0;
}
}
- s->data = read_sha1_file(s->sha1, &type, &s->size);
+ s->data = read_sha1_file(s->oid.hash, &type, &s->size);
if (!s->data)
- die("unable to read %s", sha1_to_hex(s->sha1));
+ die("unable to read %s", oid_to_hex(&s->oid));
s->should_free = 1;
}
return 0;
static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
void *blob,
unsigned long size,
- const unsigned char *sha1,
+ const struct object_id *oid,
int mode)
{
int fd;
strbuf_addstr(&template, "XXXXXX_");
strbuf_addstr(&template, base);
- fd = git_mkstemps(temp->tmp_path, PATH_MAX, template.buf,
- strlen(base) + 1);
+ fd = mks_tempfile_ts(&temp->tempfile, template.buf, strlen(base) + 1);
if (fd < 0)
die_errno("unable to create temp-file");
if (convert_to_working_tree(path,
}
if (write_in_full(fd, blob, size) != size)
die_errno("unable to write temp-file");
- close(fd);
- temp->name = temp->tmp_path;
- strcpy(temp->hex, sha1_to_hex(sha1));
- temp->hex[40] = 0;
- sprintf(temp->mode, "%06o", mode);
+ close_tempfile(&temp->tempfile);
+ temp->name = get_tempfile_path(&temp->tempfile);
+ oid_to_hex_r(temp->hex, oid);
+ xsnprintf(temp->mode, sizeof(temp->mode), "%06o", mode);
strbuf_release(&buf);
strbuf_release(&template);
free(path_dup);
* a '+' entry produces this for file-1.
*/
temp->name = "/dev/null";
- strcpy(temp->hex, ".");
- strcpy(temp->mode, ".");
+ xsnprintf(temp->hex, sizeof(temp->hex), ".");
+ xsnprintf(temp->mode, sizeof(temp->mode), ".");
return temp;
}
- if (!remove_tempfile_installed) {
- atexit(remove_tempfile);
- sigchain_push_common(remove_tempfile_on_signal);
- remove_tempfile_installed = 1;
- }
-
if (!S_ISGITLINK(one->mode) &&
- (!one->sha1_valid ||
- reuse_worktree_file(name, one->sha1, 1))) {
+ (!one->oid_valid ||
+ reuse_worktree_file(name, one->oid.hash, 1))) {
struct stat st;
if (lstat(name, &st) < 0) {
if (errno == ENOENT)
if (strbuf_readlink(&sb, name, st.st_size) < 0)
die_errno("readlink(%s)", name);
prep_temp_blob(name, temp, sb.buf, sb.len,
- (one->sha1_valid ?
- one->sha1 : null_sha1),
- (one->sha1_valid ?
+ (one->oid_valid ?
+ &one->oid : &null_oid),
+ (one->oid_valid ?
one->mode : S_IFLNK));
strbuf_release(&sb);
}
else {
/* we can borrow from the file in the work tree */
temp->name = name;
- if (!one->sha1_valid)
- strcpy(temp->hex, sha1_to_hex(null_sha1));
+ if (!one->oid_valid)
+ sha1_to_hex_r(temp->hex, null_sha1);
else
- strcpy(temp->hex, sha1_to_hex(one->sha1));
+ oid_to_hex_r(temp->hex, &one->oid);
/* Even though we may sometimes borrow the
* contents from the work tree, we always want
* one->mode. mode is trustworthy even when
* !(one->sha1_valid), as long as
* DIFF_FILE_VALID(one).
*/
- sprintf(temp->mode, "%06o", one->mode);
+ xsnprintf(temp->mode, sizeof(temp->mode), "%06o", one->mode);
}
return temp;
}
if (diff_populate_filespec(one, 0))
die("cannot read data blob for %s", one->path);
prep_temp_blob(name, temp, one->data, one->size,
- one->sha1, one->mode);
+ &one->oid, one->mode);
}
return temp;
}
return p->score * 100 / MAX_SCORE;
}
+static const char *diff_abbrev_oid(const struct object_id *oid, int abbrev)
+{
+ if (startup_info->have_repository)
+ return find_unique_abbrev(oid->hash, abbrev);
+ else {
+ char *hex = oid_to_hex(oid);
+ if (abbrev < 0)
+ abbrev = FALLBACK_DEFAULT_ABBREV;
+ if (abbrev > GIT_SHA1_HEXSZ)
+ die("BUG: oid abbreviation out of range: %d", abbrev);
+ if (abbrev)
+ hex[abbrev] = '\0';
+ return hex;
+ }
+}
+
static void fill_metainfo(struct strbuf *msg,
const char *name,
const char *other,
default:
*must_show_header = 0;
}
- if (one && two && hashcmp(one->sha1, two->sha1)) {
+ if (one && two && oidcmp(&one->oid, &two->oid)) {
int abbrev = DIFF_OPT_TST(o, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
if (DIFF_OPT_TST(o, BINARY)) {
(!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
abbrev = 40;
}
- strbuf_addf(msg, "%s%sindex %s..", line_prefix, set,
- find_unique_abbrev(one->sha1, abbrev));
- strbuf_addstr(msg, find_unique_abbrev(two->sha1, abbrev));
+ strbuf_addf(msg, "%s%sindex %s..%s", line_prefix, set,
+ diff_abbrev_oid(&one->oid, abbrev),
+ diff_abbrev_oid(&two->oid, abbrev));
if (one->mode == two->mode)
strbuf_addf(msg, " %06o", one->mode);
strbuf_addf(msg, "%s\n", reset);
static void diff_fill_sha1_info(struct diff_filespec *one)
{
if (DIFF_FILE_VALID(one)) {
- if (!one->sha1_valid) {
+ if (!one->oid_valid) {
struct stat st;
if (one->is_stdin) {
- hashcpy(one->sha1, null_sha1);
+ oidclr(&one->oid);
return;
}
if (lstat(one->path, &st) < 0)
die_errno("stat '%s'", one->path);
- if (index_path(one->sha1, one->path, &st, 0))
+ if (index_path(one->oid.hash, one->path, &st, 0))
die("cannot hash %s", one->path);
}
}
else
- hashclr(one->sha1);
+ oidclr(&one->oid);
}
static void strip_prefix(int prefix_length, const char **namep, const char **otherp)
options->file = stdout;
+ options->abbrev = DEFAULT_ABBREV;
options->line_termination = '\n';
options->break_opt = -1;
options->rename_limit = -1;
options->dirstat_permille = diff_dirstat_permille_default;
options->context = diff_context_default;
- options->ws_error_highlight = WSEH_NEW;
+ options->interhunkcontext = diff_interhunk_context_default;
+ options->ws_error_highlight = ws_error_highlight_default;
DIFF_OPT_SET(options, RENAME_EMPTY);
/* pathchange left =NULL by default */
options->use_color = diff_use_color_default;
options->detect_rename = diff_detect_rename_default;
options->xdl_opts |= diff_algorithm;
+ if (diff_indent_heuristic)
+ DIFF_XDL_SET(options, INDENT_HEURISTIC);
options->orderfile = diff_order_file_cfg;
if (options->output_format & DIFF_FORMAT_NO_OUTPUT)
count++;
if (count > 1)
- die("--name-only, --name-status, --check and -s are mutually exclusive");
+ die(_("--name-only, --name-status, --check and -s are mutually exclusive"));
/*
* Most of the time we can say "there are changes"
*/
read_cache();
}
- if (options->abbrev <= 0 || 40 < options->abbrev)
+ if (40 < options->abbrev)
options->abbrev = 40; /* full */
/*
if (*arg == '=')
width = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
- die("Option '--stat-width' requires a value");
+ die_want_option("--stat-width");
else if (!*arg) {
width = strtoul(av[1], &end, 10);
argcount = 2;
if (*arg == '=')
name_width = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
- die("Option '--stat-name-width' requires a value");
+ die_want_option("--stat-name-width");
else if (!*arg) {
name_width = strtoul(av[1], &end, 10);
argcount = 2;
if (*arg == '=')
graph_width = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
- die("Option '--stat-graph-width' requires a value");
+ die_want_option("--stat-graph-width");
else if (!*arg) {
graph_width = strtoul(av[1], &end, 10);
argcount = 2;
if (*arg == '=')
count = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
- die("Option '--stat-count' requires a value");
+ die_want_option("--stat-count");
else if (!*arg) {
count = strtoul(av[1], &end, 10);
argcount = 2;
*fmt |= DIFF_FORMAT_PATCH;
}
-static int parse_one_token(const char **arg, const char *token)
+static int parse_ws_error_highlight_opt(struct diff_options *opt, const char *arg)
{
- const char *rest;
- if (skip_prefix(*arg, token, &rest) && (!*rest || *rest == ',')) {
- *arg = rest;
- return 1;
- }
- return 0;
-}
+ int val = parse_ws_error_highlight(arg);
-static int parse_ws_error_highlight(struct diff_options *opt, const char *arg)
-{
- const char *orig_arg = arg;
- unsigned val = 0;
- while (*arg) {
- if (parse_one_token(&arg, "none"))
- val = 0;
- else if (parse_one_token(&arg, "default"))
- val = WSEH_NEW;
- else if (parse_one_token(&arg, "all"))
- val = WSEH_NEW | WSEH_OLD | WSEH_CONTEXT;
- else if (parse_one_token(&arg, "new"))
- val |= WSEH_NEW;
- else if (parse_one_token(&arg, "old"))
- val |= WSEH_OLD;
- else if (parse_one_token(&arg, "context"))
- val |= WSEH_CONTEXT;
- else {
- error("unknown value after ws-error-highlight=%.*s",
- (int)(arg - orig_arg), orig_arg);
- return 0;
- }
- if (*arg)
- arg++;
+ if (val < 0) {
+ error("unknown value after ws-error-highlight=%.*s",
+ -1 - val, arg);
+ return 0;
}
opt->ws_error_highlight = val;
return 1;
}
-int diff_opt_parse(struct diff_options *options, const char **av, int ac)
+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 = "";
+
/* Output format options */
if (!strcmp(arg, "-p") || !strcmp(arg, "-u") || !strcmp(arg, "--patch")
|| opt_arg(arg, 'U', "unified", &options->context))
DIFF_XDL_SET(options, IGNORE_WHITESPACE_AT_EOL);
else if (!strcmp(arg, "--ignore-blank-lines"))
DIFF_XDL_SET(options, IGNORE_BLANK_LINES);
+ else 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"))
options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF);
else if (!strcmp(arg, "--histogram"))
DIFF_OPT_SET(options, FIND_COPIES_HARDER);
else if (!strcmp(arg, "--follow"))
DIFF_OPT_SET(options, FOLLOW_RENAMES);
- else if (!strcmp(arg, "--no-follow"))
+ else if (!strcmp(arg, "--no-follow")) {
DIFF_OPT_CLR(options, FOLLOW_RENAMES);
- else if (!strcmp(arg, "--color"))
+ DIFF_OPT_CLR(options, DEFAULT_FOLLOW_RENAMES);
+ } else if (!strcmp(arg, "--color"))
options->use_color = 1;
else if (skip_prefix(arg, "--color=", &arg)) {
int value = git_config_colorbool(NULL, arg);
DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
handle_ignore_submodules_arg(options, arg);
} else if (!strcmp(arg, "--submodule"))
- DIFF_OPT_SET(options, SUBMODULE_LOG);
+ options->submodule_format = DIFF_SUBMODULE_LOG;
else if (skip_prefix(arg, "--submodule=", &arg))
return parse_submodule_opt(options, arg);
else if (skip_prefix(arg, "--ws-error-highlight=", &arg))
- return parse_ws_error_highlight(options, 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"))
else if (!strcmp(arg, "--pickaxe-regex"))
options->pickaxe_opts |= DIFF_PICKAXE_REGEX;
else if ((argcount = short_opt('O', av, &optarg))) {
- options->orderfile = optarg;
+ options->orderfile = prefix_filename(prefix, optarg);
return argcount;
}
else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
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->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-function-context"))
DIFF_OPT_CLR(options, FUNCCONTEXT);
else if ((argcount = parse_long_opt("output", av, &optarg))) {
- options->file = fopen(optarg, "w");
+ char *path = prefix_filename(prefix, optarg);
+ options->file = fopen(path, "w");
if (!options->file)
- die_errno("Could not open '%s'", optarg);
+ die_errno("Could not open '%s'", path);
options->close_file = 1;
+ if (options->use_color != GIT_COLOR_ALWAYS)
+ options->use_color = GIT_COLOR_NEVER;
+ free(path);
return argcount;
} else
return 0;
free(p);
}
-/* This is different from find_unique_abbrev() in that
- * it stuffs the result with dots for alignment.
- */
-const char *diff_unique_abbrev(const unsigned char *sha1, int len)
+const char *diff_aligned_abbrev(const struct object_id *oid, int len)
{
int abblen;
const char *abbrev;
- if (len == 40)
- return sha1_to_hex(sha1);
- abbrev = find_unique_abbrev(sha1, len);
+ if (len == GIT_SHA1_HEXSZ)
+ return oid_to_hex(oid);
+
+ abbrev = diff_abbrev_oid(oid, len);
abblen = strlen(abbrev);
- if (abblen < 37) {
- static char hex[41];
+
+ /*
+ * In well-behaved cases, where the abbbreviated result is the
+ * same as the requested length, append three dots after the
+ * abbreviation (hence the whole logic is limited to the case
+ * where abblen < 37); when the actual abbreviated result is a
+ * bit longer than the requested length, we reduce the number
+ * of dots so that they match the well-behaved ones. However,
+ * if the actual abbreviation is longer than the requested
+ * length by more than three, we give up on aligning, and add
+ * three dots anyway, to indicate that the output is not the
+ * full object name. Yes, this may be suboptimal, but this
+ * appears only in "diff --raw --abbrev" output and it is not
+ * worth the effort to change it now. Note that this would
+ * likely to work fine when the automatic sizing of default
+ * abbreviation length is used--we would be fed -1 in "len" in
+ * that case, and will end up always appending three-dots, but
+ * the automatic sizing is supposed to give abblen that ensures
+ * uniqueness across all objects (statistically speaking).
+ */
+ if (abblen < GIT_SHA1_HEXSZ - 3) {
+ static char hex[GIT_MAX_HEXSZ + 1];
if (len < abblen && abblen <= len + 2)
- sprintf(hex, "%s%.*s", abbrev, len+3-abblen, "..");
+ xsnprintf(hex, sizeof(hex), "%s%.*s", abbrev, len+3-abblen, "..");
else
- sprintf(hex, "%s...", abbrev);
+ xsnprintf(hex, sizeof(hex), "%s...", abbrev);
return hex;
}
- return sha1_to_hex(sha1);
+
+ return oid_to_hex(oid);
}
static void diff_flush_raw(struct diff_filepair *p, struct diff_options *opt)
fprintf(opt->file, "%s", diff_line_prefix(opt));
if (!(opt->output_format & DIFF_FORMAT_NAME_STATUS)) {
fprintf(opt->file, ":%06o %06o %s ", p->one->mode, p->two->mode,
- diff_unique_abbrev(p->one->sha1, opt->abbrev));
- fprintf(opt->file, "%s ", diff_unique_abbrev(p->two->sha1, opt->abbrev));
+ diff_aligned_abbrev(&p->one->oid, opt->abbrev));
+ fprintf(opt->file, "%s ",
+ diff_aligned_abbrev(&p->two->oid, opt->abbrev));
}
if (p->score) {
fprintf(opt->file, "%c%03d%c", p->status, similarity_index(p),
/* both are valid and point at the same path. that is, we are
* dealing with a change.
*/
- if (one->sha1_valid && two->sha1_valid &&
- !hashcmp(one->sha1, two->sha1) &&
+ if (one->oid_valid && two->oid_valid &&
+ !oidcmp(&one->oid, &two->oid) &&
!one->dirty_submodule && !two->dirty_submodule)
return 1; /* no change */
- if (!one->sha1_valid && !two->sha1_valid)
+ if (!one->oid_valid && !two->oid_valid)
return 1; /* both look at the same file on the filesystem. */
return 0;
}
s->path,
DIFF_FILE_VALID(s) ? "valid" : "invalid",
s->mode,
- s->sha1_valid ? sha1_to_hex(s->sha1) : "");
+ s->oid_valid ? oid_to_hex(&s->oid) : "");
fprintf(stderr, "queue[%d] %s size %lu\n",
x, one ? one : "",
s->size);
else
p->status = DIFF_STATUS_RENAMED;
}
- else if (hashcmp(p->one->sha1, p->two->sha1) ||
+ else if (oidcmp(&p->one->oid, &p->two->oid) ||
p->one->mode != p->two->mode ||
p->one->dirty_submodule ||
p->two->dirty_submodule ||
- is_null_sha1(p->one->sha1))
+ is_null_oid(&p->one->oid))
p->status = DIFF_STATUS_MODIFIED;
else {
/* This is a "no-change" entry and should not
name_a = p->two->path;
name_b = NULL;
strip_prefix(opt->prefix_length, &name_a, &name_b);
+ fprintf(opt->file, "%s", diff_line_prefix(opt));
write_name_quoted(name_a, opt->file, opt->line_termination);
}
}
data->patchlen += new_len;
}
+static void patch_id_add_string(git_SHA_CTX *ctx, const char *str)
+{
+ git_SHA1_Update(ctx, str, strlen(str));
+}
+
+static void patch_id_add_mode(git_SHA_CTX *ctx, unsigned mode)
+{
+ /* large enough for 2^32 in octal */
+ char buf[12];
+ int len = xsnprintf(buf, sizeof(buf), "%06o", mode);
+ 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, unsigned char *sha1)
+static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1, int diff_header_only)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
git_SHA_CTX ctx;
struct patch_id_t data;
- char buffer[PATH_MAX * 4 + 20];
git_SHA1_Init(&ctx);
memset(&data, 0, sizeof(struct patch_id_t));
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
- if (fill_mmfile(&mf1, p->one) < 0 ||
- fill_mmfile(&mf2, p->two) < 0)
- return error("unable to read files to diff");
len1 = remove_space(p->one->path, strlen(p->one->path));
len2 = remove_space(p->two->path, strlen(p->two->path));
- if (p->one->mode == 0)
- len1 = snprintf(buffer, sizeof(buffer),
- "diff--gita/%.*sb/%.*s"
- "newfilemode%06o"
- "---/dev/null"
- "+++b/%.*s",
- len1, p->one->path,
- len2, p->two->path,
- p->two->mode,
- len2, p->two->path);
- else if (p->two->mode == 0)
- len1 = snprintf(buffer, sizeof(buffer),
- "diff--gita/%.*sb/%.*s"
- "deletedfilemode%06o"
- "---a/%.*s"
- "+++/dev/null",
- len1, p->one->path,
- len2, p->two->path,
- p->one->mode,
- len1, p->one->path);
- else
- len1 = snprintf(buffer, sizeof(buffer),
- "diff--gita/%.*sb/%.*s"
- "---a/%.*s"
- "+++b/%.*s",
- len1, p->one->path,
- len2, p->two->path,
- len1, p->one->path,
- len2, p->two->path);
- git_SHA1_Update(&ctx, buffer, len1);
+ patch_id_add_string(&ctx, "diff--git");
+ patch_id_add_string(&ctx, "a/");
+ git_SHA1_Update(&ctx, p->one->path, len1);
+ patch_id_add_string(&ctx, "b/");
+ git_SHA1_Update(&ctx, p->two->path, len2);
+
+ if (p->one->mode == 0) {
+ patch_id_add_string(&ctx, "newfilemode");
+ patch_id_add_mode(&ctx, p->two->mode);
+ patch_id_add_string(&ctx, "---/dev/null");
+ patch_id_add_string(&ctx, "+++b/");
+ git_SHA1_Update(&ctx, p->two->path, len2);
+ } else if (p->two->mode == 0) {
+ patch_id_add_string(&ctx, "deletedfilemode");
+ patch_id_add_mode(&ctx, p->one->mode);
+ patch_id_add_string(&ctx, "---a/");
+ git_SHA1_Update(&ctx, p->one->path, len1);
+ patch_id_add_string(&ctx, "+++/dev/null");
+ } else {
+ patch_id_add_string(&ctx, "---a/");
+ git_SHA1_Update(&ctx, p->one->path, len1);
+ patch_id_add_string(&ctx, "+++b/");
+ git_SHA1_Update(&ctx, p->two->path, len2);
+ }
+
+ if (diff_header_only)
+ continue;
+
+ if (fill_mmfile(&mf1, p->one) < 0 ||
+ fill_mmfile(&mf2, p->two) < 0)
+ return error("unable to read files to diff");
if (diff_filespec_is_binary(p->one) ||
diff_filespec_is_binary(p->two)) {
- git_SHA1_Update(&ctx, sha1_to_hex(p->one->sha1), 40);
- git_SHA1_Update(&ctx, sha1_to_hex(p->two->sha1), 40);
+ git_SHA1_Update(&ctx, oid_to_hex(&p->one->oid),
+ 40);
+ git_SHA1_Update(&ctx, oid_to_hex(&p->two->oid),
+ 40);
continue;
}
return 0;
}
-int diff_flush_patch_id(struct diff_options *options, unsigned char *sha1)
+int diff_flush_patch_id(struct diff_options *options, unsigned char *sha1, int diff_header_only)
{
struct diff_queue_struct *q = &diff_queued_diff;
int i;
- int result = diff_get_patch_id(options, sha1);
+ int result = diff_get_patch_id(options, sha1, diff_header_only);
for (i = 0; i < q->nr; i++)
diff_free_filepair(q->queue[i]);
}
static const char rename_limit_warning[] =
-"inexact rename detection was skipped due to too many files.";
+N_("inexact rename detection was skipped due to too many files.");
static const char degrade_cc_to_c_warning[] =
-"only found copies from modified paths due to too many files.";
+N_("only found copies from modified paths due to too many files.");
static const char rename_limit_advice[] =
-"you may want to set your %s variable to at least "
-"%d and retry the command.";
+N_("you may want to set your %s variable to at least "
+ "%d and retry the command.");
void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc)
{
if (degraded_cc)
- warning(degrade_cc_to_c_warning);
+ warning(_(degrade_cc_to_c_warning));
else if (needed)
- warning(rename_limit_warning);
+ warning(_(rename_limit_warning));
else
return;
if (0 < needed && needed < 32767)
- warning(rename_limit_advice, varname, needed);
+ warning(_(rename_limit_advice), varname, needed);
}
void diff_flush(struct diff_options *options)
*/
if (!DIFF_FILE_VALID(p->one) || /* (1) */
!DIFF_FILE_VALID(p->two) ||
- (p->one->sha1_valid && p->two->sha1_valid) ||
+ (p->one->oid_valid && p->two->oid_valid) ||
(p->one->mode != p->two->mode) ||
diff_populate_filespec(p->one, CHECK_SIZE_ONLY) ||
diff_populate_filespec(p->two, CHECK_SIZE_ONLY) ||
void diffcore_fix_diff_index(struct diff_options *options)
{
struct diff_queue_struct *q = &diff_queued_diff;
- qsort(q->queue, q->nr, sizeof(q->queue[0]), diffnamecmp);
+ QSORT(q->queue, q->nr, diffnamecmp);
}
void diffcore_std(struct diff_options *options)
return;
if (DIFF_OPT_TST(options, REVERSE_DIFF)) {
- unsigned tmp;
- const unsigned char *tmp_c;
- tmp = old_mode; old_mode = new_mode; new_mode = tmp;
- tmp_c = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_c;
- tmp = old_sha1_valid; old_sha1_valid = new_sha1_valid;
- new_sha1_valid = tmp;
- tmp = old_dirty_submodule; old_dirty_submodule = new_dirty_submodule;
- new_dirty_submodule = tmp;
+ SWAP(old_mode, new_mode);
+ SWAP(old_sha1, new_sha1);
+ SWAP(old_sha1_valid, new_sha1_valid);
+ SWAP(old_dirty_submodule, new_dirty_submodule);
}
if (options->prefix &&
{
size_t size;
- if (!driver || !driver->textconv) {
+ if (!driver) {
if (!DIFF_FILE_VALID(df)) {
*outbuf = "";
return 0;
return df->size;
}
- if (driver->textconv_cache && df->sha1_valid) {
- *outbuf = notes_cache_get(driver->textconv_cache, df->sha1,
+ if (!driver->textconv)
+ die("BUG: fill_textconv called with non-textconv driver");
+
+ if (driver->textconv_cache && df->oid_valid) {
+ *outbuf = notes_cache_get(driver->textconv_cache,
+ df->oid.hash,
&size);
if (*outbuf)
return size;
if (!*outbuf)
die("unable to read files to diff");
- if (driver->textconv_cache && df->sha1_valid) {
+ if (driver->textconv_cache && df->oid_valid) {
/* ignore errors, as we might be in a readonly repository */
- notes_cache_put(driver->textconv_cache, df->sha1, *outbuf,
+ notes_cache_put(driver->textconv_cache, df->oid.hash, *outbuf,
size);
/*
* we could save up changes and flush them all at the end,