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-rw-r--r--diff.c740
1 files changed, 446 insertions, 294 deletions
diff --git a/diff.c b/diff.c
index 3f1f08f9fd..c6da383c56 100644
--- a/diff.c
+++ b/diff.c
@@ -2,6 +2,7 @@
* Copyright (C) 2005 Junio C Hamano
*/
#include "cache.h"
+#include "tempfile.h"
#include "quote.h"
#include "diff.h"
#include "diffcore.h"
@@ -12,11 +13,12 @@
#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
@@ -25,6 +27,7 @@
#endif
static int diff_detect_rename_default;
+static int diff_compaction_heuristic; /* experimental */
static int diff_rename_limit_default = 400;
static int diff_suppress_blank_empty;
static int diff_use_color_default = -1;
@@ -42,7 +45,7 @@ static long diff_algorithm;
static char diff_colors[][COLOR_MAXLEN] = {
GIT_COLOR_RESET,
- GIT_COLOR_NORMAL, /* PLAIN */
+ GIT_COLOR_NORMAL, /* CONTEXT */
GIT_COLOR_BOLD, /* METAINFO */
GIT_COLOR_CYAN, /* FRAGINFO */
GIT_COLOR_RED, /* OLD */
@@ -52,23 +55,23 @@ static char diff_colors[][COLOR_MAXLEN] = {
GIT_COLOR_NORMAL, /* FUNCINFO */
};
-static int parse_diff_color_slot(const char *var, int ofs)
+static int parse_diff_color_slot(const char *var)
{
- if (!strcasecmp(var+ofs, "plain"))
- return DIFF_PLAIN;
- if (!strcasecmp(var+ofs, "meta"))
+ if (!strcasecmp(var, "context") || !strcasecmp(var, "plain"))
+ return DIFF_CONTEXT;
+ if (!strcasecmp(var, "meta"))
return DIFF_METAINFO;
- if (!strcasecmp(var+ofs, "frag"))
+ if (!strcasecmp(var, "frag"))
return DIFF_FRAGINFO;
- if (!strcasecmp(var+ofs, "old"))
+ if (!strcasecmp(var, "old"))
return DIFF_FILE_OLD;
- if (!strcasecmp(var+ofs, "new"))
+ if (!strcasecmp(var, "new"))
return DIFF_FILE_NEW;
- if (!strcasecmp(var+ofs, "commit"))
+ if (!strcasecmp(var, "commit"))
return DIFF_COMMIT;
- if (!strcasecmp(var+ofs, "whitespace"))
+ if (!strcasecmp(var, "whitespace"))
return DIFF_WHITESPACE;
- if (!strcasecmp(var+ofs, "func"))
+ if (!strcasecmp(var, "func"))
return DIFF_FUNCINFO;
return -1;
}
@@ -129,9 +132,11 @@ static int parse_dirstat_params(struct diff_options *options, const char *params
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;
@@ -167,6 +172,11 @@ long parse_algorithm_value(const char *value)
* 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 = 1;
+}
+
int git_diff_ui_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
@@ -183,6 +193,10 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
diff_detect_rename_default = git_config_rename(var, value);
return 0;
}
+ if (!strcmp(var, "diff.compactionheuristic")) {
+ diff_compaction_heuristic = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp(var, "diff.autorefreshindex")) {
diff_auto_refresh_index = git_config_bool(var, value);
return 0;
@@ -231,6 +245,8 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
int git_diff_basic_config(const char *var, const char *value, void *cb)
{
+ const char *name;
+
if (!strcmp(var, "diff.renamelimit")) {
diff_rename_limit_default = git_config_int(var, value);
return 0;
@@ -239,14 +255,14 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
if (userdiff_config(var, value) < 0)
return -1;
- if (starts_with(var, "diff.color.") || starts_with(var, "color.diff.")) {
- int slot = parse_diff_color_slot(var, 11);
+ if (skip_prefix(var, "diff.color.", &name) ||
+ skip_prefix(var, "color.diff.", &name)) {
+ int slot = parse_diff_color_slot(name);
if (slot < 0)
return 0;
if (!value)
return config_error_nonbool(var);
- color_parse(value, var, diff_colors[slot]);
- return 0;
+ return color_parse(value, diff_colors[slot]);
}
/* like GNU diff's --suppress-blank-empty option */
@@ -306,11 +322,26 @@ static const char *external_diff(void)
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_SHA1_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);
@@ -326,7 +357,6 @@ struct emit_callback {
const char **label_path;
struct diff_words_data *diff_words;
struct diff_options *opt;
- int *found_changesp;
struct strbuf *header;
};
@@ -373,7 +403,7 @@ static unsigned long diff_filespec_size(struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one))
return 0;
- diff_populate_filespec(one, 1);
+ diff_populate_filespec(one, CHECK_SIZE_ONLY);
return one->size;
}
@@ -476,30 +506,63 @@ static int new_blank_line_at_eof(struct emit_callback *ecbdata, const char *line
return ws_blank_line(line, len, ecbdata->ws_rule);
}
-static void emit_add_line(const char *reset,
- struct emit_callback *ecbdata,
- const char *line, int len)
+static void emit_line_checked(const char *reset,
+ struct emit_callback *ecbdata,
+ const char *line, int len,
+ enum color_diff color,
+ unsigned ws_error_highlight,
+ char sign)
{
- const char *ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
- const char *set = diff_get_color(ecbdata->color_diff, DIFF_FILE_NEW);
+ const char *set = diff_get_color(ecbdata->color_diff, color);
+ const char *ws = NULL;
+
+ if (ecbdata->opt->ws_error_highlight & ws_error_highlight) {
+ ws = diff_get_color(ecbdata->color_diff, DIFF_WHITESPACE);
+ if (!*ws)
+ ws = NULL;
+ }
- if (!*ws)
- emit_line_0(ecbdata->opt, set, reset, '+', line, len);
- else if (new_blank_line_at_eof(ecbdata, line, len))
+ if (!ws)
+ emit_line_0(ecbdata->opt, set, reset, sign, line, len);
+ else if (sign == '+' && new_blank_line_at_eof(ecbdata, line, len))
/* Blank line at EOF - paint '+' as well */
- emit_line_0(ecbdata->opt, ws, reset, '+', line, len);
+ emit_line_0(ecbdata->opt, ws, reset, sign, line, len);
else {
/* Emit just the prefix, then the rest. */
- emit_line_0(ecbdata->opt, set, reset, '+', "", 0);
+ emit_line_0(ecbdata->opt, set, reset, sign, "", 0);
ws_check_emit(line, len, ecbdata->ws_rule,
ecbdata->opt->file, set, reset, ws);
}
}
+static void emit_add_line(const char *reset,
+ struct emit_callback *ecbdata,
+ const char *line, int len)
+{
+ emit_line_checked(reset, ecbdata, line, len,
+ DIFF_FILE_NEW, WSEH_NEW, '+');
+}
+
+static void emit_del_line(const char *reset,
+ struct emit_callback *ecbdata,
+ const char *line, int len)
+{
+ emit_line_checked(reset, ecbdata, line, len,
+ DIFF_FILE_OLD, WSEH_OLD, '-');
+}
+
+static void emit_context_line(const char *reset,
+ struct emit_callback *ecbdata,
+ const char *line, int len)
+{
+ emit_line_checked(reset, ecbdata, line, len,
+ DIFF_CONTEXT, WSEH_CONTEXT, ' ');
+}
+
static void emit_hunk_header(struct emit_callback *ecbdata,
const char *line, int len)
{
- const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN);
+ const char *context = diff_get_color(ecbdata->color_diff, DIFF_CONTEXT);
const char *frag = diff_get_color(ecbdata->color_diff, DIFF_FRAGINFO);
const char *func = diff_get_color(ecbdata->color_diff, DIFF_FUNCINFO);
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
@@ -516,15 +579,15 @@ static void emit_hunk_header(struct emit_callback *ecbdata,
if (len < 10 ||
memcmp(line, atat, 2) ||
!(ep = memmem(line + 2, len - 2, atat, 2))) {
- emit_line(ecbdata->opt, plain, reset, line, len);
+ emit_line(ecbdata->opt, context, reset, line, len);
return;
}
ep += 2; /* skip over @@ */
/* The hunk header in fraginfo color */
- strbuf_add(&msgbuf, frag, strlen(frag));
+ strbuf_addstr(&msgbuf, frag);
strbuf_add(&msgbuf, line, ep - line);
- strbuf_add(&msgbuf, reset, strlen(reset));
+ strbuf_addstr(&msgbuf, reset);
/*
* trailing "\r\n"
@@ -538,15 +601,15 @@ static void emit_hunk_header(struct emit_callback *ecbdata,
if (*ep != ' ' && *ep != '\t')
break;
if (ep != cp) {
- strbuf_add(&msgbuf, plain, strlen(plain));
+ strbuf_addstr(&msgbuf, context);
strbuf_add(&msgbuf, cp, ep - cp);
- strbuf_add(&msgbuf, reset, strlen(reset));
+ strbuf_addstr(&msgbuf, reset);
}
if (ep < line + len) {
- strbuf_add(&msgbuf, func, strlen(func));
+ strbuf_addstr(&msgbuf, func);
strbuf_add(&msgbuf, ep, line + len - ep);
- strbuf_add(&msgbuf, reset, strlen(reset));
+ strbuf_addstr(&msgbuf, reset);
}
strbuf_add(&msgbuf, line + len, org_len - len);
@@ -562,25 +625,16 @@ static struct diff_tempfile *claim_diff_tempfile(void) {
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) {
@@ -601,7 +655,6 @@ static void emit_rewrite_lines(struct emit_callback *ecb,
{
const char *endp = NULL;
static const char *nneof = " No newline at end of file\n";
- const char *old = diff_get_color(ecb->color_diff, DIFF_FILE_OLD);
const char *reset = diff_get_color(ecb->color_diff, DIFF_RESET);
while (0 < size) {
@@ -611,8 +664,7 @@ static void emit_rewrite_lines(struct emit_callback *ecb,
len = endp ? (endp - data + 1) : size;
if (prefix != '+') {
ecb->lno_in_preimage++;
- emit_line_0(ecb->opt, old, reset, '-',
- data, len);
+ emit_del_line(reset, ecb, data, len);
} else {
ecb->lno_in_postimage++;
emit_add_line(reset, ecb, data, len);
@@ -621,10 +673,10 @@ static void emit_rewrite_lines(struct emit_callback *ecb,
data += len;
}
if (!endp) {
- const char *plain = diff_get_color(ecb->color_diff,
- DIFF_PLAIN);
+ const char *context = diff_get_color(ecb->color_diff,
+ DIFF_CONTEXT);
putc('\n', ecb->opt->file);
- emit_line_0(ecb->opt, plain, reset, '\\',
+ emit_line_0(ecb->opt, context, reset, '\\',
nneof, strlen(nneof));
}
}
@@ -672,7 +724,6 @@ static void emit_rewrite_diff(const char *name_a,
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) {
@@ -1000,8 +1051,9 @@ static void diff_words_show(struct diff_words_data *diff_words)
xpp.flags = 0;
/* as only the hunk header will be parsed, we need a 0-context */
xecfg.ctxlen = 0;
- xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, diff_words,
- &xpp, &xecfg);
+ if (xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, diff_words,
+ &xpp, &xecfg))
+ die("unable to generate word diff");
free(minus.ptr);
free(plus.ptr);
if (diff_words->current_plus != diff_words->plus.text.ptr +
@@ -1084,7 +1136,7 @@ static void init_diff_words_data(struct emit_callback *ecbdata,
struct diff_words_style *st = ecbdata->diff_words->style;
st->old.color = diff_get_color_opt(o, DIFF_FILE_OLD);
st->new.color = diff_get_color_opt(o, DIFF_FILE_NEW);
- st->ctx.color = diff_get_color_opt(o, DIFF_PLAIN);
+ st->ctx.color = diff_get_color_opt(o, DIFF_CONTEXT);
}
}
@@ -1160,17 +1212,18 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
{
struct emit_callback *ecbdata = priv;
const char *meta = diff_get_color(ecbdata->color_diff, DIFF_METAINFO);
- const char *plain = diff_get_color(ecbdata->color_diff, DIFF_PLAIN);
+ const char *context = diff_get_color(ecbdata->color_diff, DIFF_CONTEXT);
const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET);
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;
@@ -1178,9 +1231,9 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
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;
}
@@ -1198,15 +1251,7 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
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;
}
@@ -1231,8 +1276,8 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
}
diff_words_flush(ecbdata);
if (ecbdata->diff_words->type == DIFF_WORDS_PORCELAIN) {
- emit_line(ecbdata->opt, plain, 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
@@ -1243,22 +1288,31 @@ static void fn_out_consume(void *priv, char *line, unsigned long len)
line++;
len--;
}
- emit_line(ecbdata->opt, plain, reset, line, len);
+ emit_line(o, context, reset, line, len);
}
return;
}
- if (line[0] != '+') {
- const char *color =
- diff_get_color(ecbdata->color_diff,
- line[0] == '-' ? DIFF_FILE_OLD : DIFF_PLAIN);
- ecbdata->lno_in_preimage++;
- if (line[0] == ' ')
- ecbdata->lno_in_postimage++;
- emit_line(ecbdata->opt, color, reset, line, len);
- } else {
+ switch (line[0]) {
+ case '+':
ecbdata->lno_in_postimage++;
emit_add_line(reset, ecbdata, line + 1, len - 1);
+ break;
+ case '-':
+ ecbdata->lno_in_preimage++;
+ emit_del_line(reset, ecbdata, line + 1, len - 1);
+ break;
+ case ' ':
+ ecbdata->lno_in_postimage++;
+ ecbdata->lno_in_preimage++;
+ emit_context_line(reset, ecbdata, line + 1, len - 1);
+ break;
+ default:
+ /* incomplete line at the end */
+ ecbdata->lno_in_preimage++;
+ emit_line(o, diff_get_color(ecbdata->color_diff, DIFF_CONTEXT),
+ reset, line, len);
+ break;
}
}
@@ -1564,7 +1618,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
*/
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 ?
@@ -1872,8 +1926,8 @@ static void show_dirstat(struct diff_options *options)
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;
@@ -1907,11 +1961,11 @@ static void show_dirstat(struct diff_options *options)
diff_free_filespec_data(p->one);
diff_free_filespec_data(p->two);
} else if (DIFF_FILE_VALID(p->one)) {
- diff_populate_filespec(p->one, 1);
+ diff_populate_filespec(p->one, CHECK_SIZE_ONLY);
copied = added = 0;
diff_free_filespec_data(p->one);
} else if (DIFF_FILE_VALID(p->two)) {
- diff_populate_filespec(p->two, 1);
+ diff_populate_filespec(p->two, CHECK_SIZE_ONLY);
copied = 0;
added = p->two->size;
diff_free_filespec_data(p->two);
@@ -2091,7 +2145,6 @@ static unsigned char *deflate_it(char *data,
unsigned char *deflated;
git_zstream stream;
- memset(&stream, 0, sizeof(stream));
git_deflate_init(&stream, zlib_compression_level);
bound = git_deflate_bound(&stream, size);
deflated = xmalloc(bound);
@@ -2185,8 +2238,8 @@ int diff_filespec_is_binary(struct diff_filespec *one)
one->is_binary = one->driver->binary;
else {
if (!one->data && DIFF_FILE_VALID(one))
- diff_populate_filespec(one, 0);
- if (one->data)
+ diff_populate_filespec(one, CHECK_BINARY);
+ if (one->is_binary == -1 && one->data)
one->is_binary = buffer_is_binary(one->data,
one->size);
if (one->is_binary == -1)
@@ -2239,16 +2292,37 @@ static void builtin_diff(const char *name_a,
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)) {
@@ -2256,15 +2330,6 @@ static void builtin_diff(const char *name_a,
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;
@@ -2321,6 +2386,19 @@ static void builtin_diff(const char *name_a,
} else if (!DIFF_OPT_TST(o, TEXT) &&
( (!textconv_one && diff_filespec_is_binary(one)) ||
(!textconv_two && diff_filespec_is_binary(two)) )) {
+ if (!one->data && !two->data &&
+ S_ISREG(one->mode) && S_ISREG(two->mode) &&
+ !DIFF_OPT_TST(o, BINARY)) {
+ if (!oidcmp(&one->oid, &two->oid)) {
+ if (must_show_header)
+ fprintf(o->file, "%s", header.buf);
+ goto free_ab_and_return;
+ }
+ fprintf(o->file, "%s", header.buf);
+ fprintf(o->file, "%sBinary files %s and %s differ\n",
+ line_prefix, lbl[0], lbl[1]);
+ goto free_ab_and_return;
+ }
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
/* Quite common confusing case */
@@ -2341,6 +2419,7 @@ static void builtin_diff(const char *name_a,
} else {
/* Crazy xdl interfaces.. */
const char *diffopts = getenv("GIT_DIFF_OPTS");
+ const char *v;
xpparam_t xpp;
xdemitconf_t xecfg;
struct emit_callback ecbdata;
@@ -2363,7 +2442,6 @@ static void builtin_diff(const char *name_a,
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);
@@ -2379,14 +2457,15 @@ static void builtin_diff(const char *name_a,
xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags);
if (!diffopts)
;
- else if (starts_with(diffopts, "--unified="))
- xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
- else if (starts_with(diffopts, "-u"))
- xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
+ else if (skip_prefix(diffopts, "--unified=", &v))
+ xecfg.ctxlen = strtoul(v, NULL, 10);
+ else if (skip_prefix(diffopts, "-u", &v))
+ xecfg.ctxlen = strtoul(v, NULL, 10);
if (o->word_diff)
init_diff_words_data(&ecbdata, o, one, two);
- xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
- &xpp, &xecfg);
+ if (xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
+ &xpp, &xecfg))
+ die("unable to generate diff for %s", one->path);
if (o->word_diff)
free_diff_words_data(&ecbdata);
if (textconv_one)
@@ -2430,7 +2509,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
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;
@@ -2463,8 +2542,9 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
xpp.flags = o->xdl_opts;
xecfg.ctxlen = o->context;
xecfg.interhunkctxlen = o->interhunkcontext;
- xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
- &xpp, &xecfg);
+ if (xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
+ &xpp, &xecfg))
+ die("unable to generate diffstat for %s", one->path);
}
diff_free_filespec_data(one);
@@ -2510,8 +2590,9 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
memset(&xecfg, 0, sizeof(xecfg));
xecfg.ctxlen = 1; /* at least one context line */
xpp.flags = 0;
- xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
- &xpp, &xecfg);
+ if (xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
+ &xpp, &xecfg))
+ die("unable to generate checkdiff for %s", one->path);
if (data.ws_rule & WS_BLANK_AT_EOF) {
struct emit_callback ecbdata;
@@ -2540,12 +2621,9 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
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;
@@ -2564,8 +2642,8 @@ void fill_filespec(struct diff_filespec *spec, const unsigned char *sha1,
{
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;
}
}
@@ -2608,6 +2686,13 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
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)
@@ -2618,7 +2703,7 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
* 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;
/*
@@ -2640,21 +2725,22 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
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;
}
@@ -2664,8 +2750,9 @@ static int diff_populate_gitlink(struct diff_filespec *s, int size_only)
* grab the data for the blob (or file) for our own in-core comparison.
* diff_filespec has data and size fields for this purpose.
*/
-int diff_populate_filespec(struct diff_filespec *s, int size_only)
+int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
{
+ int size_only = flags & CHECK_SIZE_ONLY;
int err = 0;
/*
* demote FAIL to WARN to allow inspecting the situation
@@ -2689,8 +2776,8 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
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;
@@ -2720,6 +2807,11 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
}
if (size_only)
return 0;
+ if ((flags & CHECK_BINARY) &&
+ s->size > big_file_threshold && s->is_binary == -1) {
+ s->is_binary = 1;
+ return 0;
+ }
fd = open(s->path, O_RDONLY);
if (fd < 0)
goto err_empty;
@@ -2741,16 +2833,22 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
}
else {
enum object_type type;
- if (size_only) {
- type = sha1_object_info(s->sha1, &s->size);
+ if (size_only || (flags & CHECK_BINARY)) {
+ type = sha1_object_info(s->oid.hash, &s->size);
if (type < 0)
- die("unable to read %s", sha1_to_hex(s->sha1));
- } else {
- s->data = read_sha1_file(s->sha1, &type, &s->size);
- if (!s->data)
- die("unable to read %s", sha1_to_hex(s->sha1));
- s->should_free = 1;
+ 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) {
+ s->is_binary = 1;
+ return 0;
+ }
}
+ s->data = read_sha1_file(s->oid.hash, &type, &s->size);
+ if (!s->data)
+ die("unable to read %s", oid_to_hex(&s->oid));
+ s->should_free = 1;
}
return 0;
}
@@ -2778,7 +2876,7 @@ void diff_free_filespec_data(struct diff_filespec *s)
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;
@@ -2791,8 +2889,7 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
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,
@@ -2802,11 +2899,10 @@ static void prep_temp_blob(const char *path, struct diff_tempfile *temp,
}
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);
@@ -2823,20 +2919,14 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
* 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)
@@ -2848,26 +2938,26 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
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));
+ sha1_to_hex_r(temp->hex, one->oid.hash);
/* 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;
}
@@ -2875,11 +2965,21 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
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;
}
+static void add_external_diff_name(struct argv_array *argv,
+ const char *name,
+ struct diff_filespec *df)
+{
+ struct diff_tempfile *temp = prepare_temp_file(name, df);
+ argv_array_push(argv, temp->name);
+ argv_array_push(argv, temp->hex);
+ argv_array_push(argv, temp->mode);
+}
+
/* An external diff command takes:
*
* diff-cmd name infile1 infile1-sha1 infile1-mode \
@@ -2896,48 +2996,32 @@ static void run_external_diff(const char *pgm,
struct diff_options *o)
{
struct argv_array argv = ARGV_ARRAY_INIT;
- int retval;
+ struct argv_array env = ARGV_ARRAY_INIT;
struct diff_queue_struct *q = &diff_queued_diff;
- const char *env[3] = { NULL };
- char env_counter[50];
- char env_total[50];
+
+ argv_array_push(&argv, pgm);
+ argv_array_push(&argv, name);
if (one && two) {
- struct diff_tempfile *temp_one, *temp_two;
- const char *othername = (other ? other : name);
- temp_one = prepare_temp_file(name, one);
- temp_two = prepare_temp_file(othername, two);
- argv_array_push(&argv, pgm);
- argv_array_push(&argv, name);
- argv_array_push(&argv, temp_one->name);
- argv_array_push(&argv, temp_one->hex);
- argv_array_push(&argv, temp_one->mode);
- argv_array_push(&argv, temp_two->name);
- argv_array_push(&argv, temp_two->hex);
- argv_array_push(&argv, temp_two->mode);
- if (other) {
+ add_external_diff_name(&argv, name, one);
+ if (!other)
+ add_external_diff_name(&argv, name, two);
+ else {
+ add_external_diff_name(&argv, other, two);
argv_array_push(&argv, other);
argv_array_push(&argv, xfrm_msg);
}
- } else {
- argv_array_push(&argv, pgm);
- argv_array_push(&argv, name);
}
- fflush(NULL);
- env[0] = env_counter;
- snprintf(env_counter, sizeof(env_counter), "GIT_DIFF_PATH_COUNTER=%d",
- ++o->diff_path_counter);
- env[1] = env_total;
- snprintf(env_total, sizeof(env_total), "GIT_DIFF_PATH_TOTAL=%d", q->nr);
+ argv_array_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter);
+ argv_array_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr);
+
+ if (run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv))
+ die(_("external diff died, stopping at %s"), name);
- retval = run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env);
remove_tempfile();
argv_array_clear(&argv);
- if (retval) {
- fprintf(stderr, "external diff died, stopping at %s.\n", name);
- exit(1);
- }
+ argv_array_clear(&env);
}
static int similarity_index(struct diff_filepair *p)
@@ -2994,7 +3078,7 @@ static void fill_metainfo(struct strbuf *msg,
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)) {
@@ -3004,8 +3088,8 @@ static void fill_metainfo(struct strbuf *msg,
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));
+ find_unique_abbrev(one->oid.hash, abbrev));
+ strbuf_addstr(msg, find_unique_abbrev(two->oid.hash, abbrev));
if (one->mode == two->mode)
strbuf_addf(msg, " %06o", one->mode);
strbuf_addf(msg, "%s\n", reset);
@@ -3060,20 +3144,20 @@ static void run_diff_cmd(const char *pgm,
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)
@@ -3203,13 +3287,17 @@ void diff_setup(struct diff_options *options)
options->rename_limit = -1;
options->dirstat_permille = diff_dirstat_permille_default;
options->context = diff_context_default;
+ options->ws_error_highlight = WSEH_NEW;
DIFF_OPT_SET(options, RENAME_EMPTY);
+ /* pathchange left =NULL by default */
options->change = diff_change;
options->add_remove = diff_addremove;
options->use_color = diff_use_color_default;
options->detect_rename = diff_detect_rename_default;
options->xdl_opts |= diff_algorithm;
+ if (diff_compaction_heuristic)
+ DIFF_XDL_SET(options, COMPACTION_HEURISTIC);
options->orderfile = diff_order_file_cfg;
@@ -3396,12 +3484,10 @@ int parse_long_opt(const char *opt, const char **argv,
const char **optarg)
{
const char *arg = argv[0];
- if (arg[0] != '-' || arg[1] != '-')
+ if (!skip_prefix(arg, "--", &arg))
return 0;
- arg += strlen("--");
- if (!starts_with(arg, opt))
+ if (!skip_prefix(arg, opt, &arg))
return 0;
- arg += strlen(opt);
if (*arg == '=') { /* stuck form: --option=value */
*optarg = arg + 1;
return 1;
@@ -3425,13 +3511,13 @@ static int stat_opt(struct diff_options *options, const char **av)
int count = options->stat_count;
int argcount = 1;
- arg += strlen("--stat");
+ if (!skip_prefix(arg, "--stat", &arg))
+ die("BUG: stat option does not begin with --stat: %s", arg);
end = (char *)arg;
switch (*arg) {
case '-':
- if (starts_with(arg, "-width")) {
- arg += strlen("-width");
+ if (skip_prefix(arg, "-width", &arg)) {
if (*arg == '=')
width = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
@@ -3440,8 +3526,7 @@ static int stat_opt(struct diff_options *options, const char **av)
width = strtoul(av[1], &end, 10);
argcount = 2;
}
- } else if (starts_with(arg, "-name-width")) {
- arg += strlen("-name-width");
+ } else if (skip_prefix(arg, "-name-width", &arg)) {
if (*arg == '=')
name_width = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
@@ -3450,8 +3535,7 @@ static int stat_opt(struct diff_options *options, const char **av)
name_width = strtoul(av[1], &end, 10);
argcount = 2;
}
- } else if (starts_with(arg, "-graph-width")) {
- arg += strlen("-graph-width");
+ } else if (skip_prefix(arg, "-graph-width", &arg)) {
if (*arg == '=')
graph_width = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
@@ -3460,8 +3544,7 @@ static int stat_opt(struct diff_options *options, const char **av)
graph_width = strtoul(av[1], &end, 10);
argcount = 2;
}
- } else if (starts_with(arg, "-count")) {
- arg += strlen("-count");
+ } else if (skip_prefix(arg, "-count", &arg)) {
if (*arg == '=')
count = strtoul(arg + 1, &end, 10);
else if (!*arg && !av[1])
@@ -3593,12 +3676,55 @@ static void enable_patch_output(int *fmt) {
*fmt |= DIFF_FORMAT_PATCH;
}
-int diff_opt_parse(struct diff_options *options, const char **av, int ac)
+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(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++;
+ }
+ opt->ws_error_highlight = val;
+ return 1;
+}
+
+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))
@@ -3614,17 +3740,17 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_SHORTSTAT;
else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat"))
return parse_dirstat_opt(options, "");
- else if (starts_with(arg, "-X"))
- return parse_dirstat_opt(options, arg + 2);
- else if (starts_with(arg, "--dirstat="))
- return parse_dirstat_opt(options, arg + 10);
+ else if (skip_prefix(arg, "-X", &arg))
+ return parse_dirstat_opt(options, arg);
+ else if (skip_prefix(arg, "--dirstat=", &arg))
+ return parse_dirstat_opt(options, arg);
else if (!strcmp(arg, "--cumulative"))
return parse_dirstat_opt(options, "cumulative");
else if (!strcmp(arg, "--dirstat-by-file"))
return parse_dirstat_opt(options, "files");
- else if (starts_with(arg, "--dirstat-by-file=")) {
+ else if (skip_prefix(arg, "--dirstat-by-file=", &arg)) {
parse_dirstat_opt(options, "files");
- return parse_dirstat_opt(options, arg + 18);
+ return parse_dirstat_opt(options, arg);
}
else if (!strcmp(arg, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;
@@ -3674,9 +3800,9 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_CLR(options, RENAME_EMPTY);
else if (!strcmp(arg, "--relative"))
DIFF_OPT_SET(options, RELATIVE_NAME);
- else if (starts_with(arg, "--relative=")) {
+ else if (skip_prefix(arg, "--relative=", &arg)) {
DIFF_OPT_SET(options, RELATIVE_NAME);
- options->prefix = arg + 11;
+ options->prefix = arg;
}
/* xdiff options */
@@ -3692,6 +3818,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
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, "--compaction-heuristic"))
+ DIFF_XDL_SET(options, COMPACTION_HEURISTIC);
+ else if (!strcmp(arg, "--no-compaction-heuristic"))
+ DIFF_XDL_CLR(options, COMPACTION_HEURISTIC);
else if (!strcmp(arg, "--patience"))
options->xdl_opts = DIFF_WITH_ALG(options, PATIENCE_DIFF);
else if (!strcmp(arg, "--histogram"))
@@ -3723,12 +3853,13 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
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 (starts_with(arg, "--color=")) {
- int value = git_config_colorbool(NULL, arg+8);
+ else if (skip_prefix(arg, "--color=", &arg)) {
+ int value = git_config_colorbool(NULL, arg);
if (value < 0)
return error("option `color' expects \"always\", \"auto\", or \"never\"");
options->use_color = value;
@@ -3739,29 +3870,28 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
}
- else if (starts_with(arg, "--color-words=")) {
+ else if (skip_prefix(arg, "--color-words=", &arg)) {
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
- options->word_regex = arg + 14;
+ options->word_regex = arg;
}
else if (!strcmp(arg, "--word-diff")) {
if (options->word_diff == DIFF_WORDS_NONE)
options->word_diff = DIFF_WORDS_PLAIN;
}
- else if (starts_with(arg, "--word-diff=")) {
- const char *type = arg + 12;
- if (!strcmp(type, "plain"))
+ else if (skip_prefix(arg, "--word-diff=", &arg)) {
+ if (!strcmp(arg, "plain"))
options->word_diff = DIFF_WORDS_PLAIN;
- else if (!strcmp(type, "color")) {
+ else if (!strcmp(arg, "color")) {
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
}
- else if (!strcmp(type, "porcelain"))
+ else if (!strcmp(arg, "porcelain"))
options->word_diff = DIFF_WORDS_PORCELAIN;
- else if (!strcmp(type, "none"))
+ else if (!strcmp(arg, "none"))
options->word_diff = DIFF_WORDS_NONE;
else
- die("bad --word-diff argument: %s", type);
+ 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)
@@ -3784,13 +3914,15 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
else if (!strcmp(arg, "--ignore-submodules")) {
DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
handle_ignore_submodules_arg(options, "all");
- } else if (starts_with(arg, "--ignore-submodules=")) {
+ } else if (skip_prefix(arg, "--ignore-submodules=", &arg)) {
DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
- handle_ignore_submodules_arg(options, arg + 20);
+ handle_ignore_submodules_arg(options, arg);
} else if (!strcmp(arg, "--submodule"))
- DIFF_OPT_SET(options, SUBMODULE_LOG);
- else if (starts_with(arg, "--submodule="))
- return parse_submodule_opt(options, arg + 12);
+ 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);
/* misc options */
else if (!strcmp(arg, "-z"))
@@ -3813,7 +3945,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
else if (!strcmp(arg, "--pickaxe-regex"))
options->pickaxe_opts |= DIFF_PICKAXE_REGEX;
else if ((argcount = short_opt('O', av, &optarg))) {
- options->orderfile = optarg;
+ const char *path = prefix_filename(prefix, strlen(prefix), optarg);
+ options->orderfile = xstrdup(path);
return argcount;
}
else if ((argcount = parse_long_opt("diff-filter", av, &optarg))) {
@@ -3825,8 +3958,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
}
else if (!strcmp(arg, "--abbrev"))
options->abbrev = DEFAULT_ABBREV;
- else if (starts_with(arg, "--abbrev=")) {
- options->abbrev = strtoul(arg + 9, NULL, 10);
+ else if (skip_prefix(arg, "--abbrev=", &arg)) {
+ options->abbrev = strtoul(arg, NULL, 10);
if (options->abbrev < MINIMUM_ABBREV)
options->abbrev = MINIMUM_ABBREV;
else if (40 < options->abbrev)
@@ -3836,6 +3969,12 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
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;
@@ -3852,10 +3991,13 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
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");
+ const char *path = prefix_filename(prefix, strlen(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;
return argcount;
} else
return 0;
@@ -3907,16 +4049,13 @@ static int diff_scoreopt_parse(const char *opt)
cmd = *opt++;
if (cmd == '-') {
/* convert the long-form arguments into short-form versions */
- if (starts_with(opt, "break-rewrites")) {
- opt += strlen("break-rewrites");
+ if (skip_prefix(opt, "break-rewrites", &opt)) {
if (*opt == 0 || *opt++ == '=')
cmd = 'B';
- } else if (starts_with(opt, "find-copies")) {
- opt += strlen("find-copies");
+ } else if (skip_prefix(opt, "find-copies", &opt)) {
if (*opt == 0 || *opt++ == '=')
cmd = 'C';
- } else if (starts_with(opt, "find-renames")) {
- opt += strlen("find-renames");
+ } else if (skip_prefix(opt, "find-renames", &opt)) {
if (*opt == 0 || *opt++ == '=')
cmd = 'M';
}
@@ -3984,9 +4123,9 @@ const char *diff_unique_abbrev(const unsigned char *sha1, int len)
if (abblen < 37) {
static char hex[41];
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);
@@ -4000,8 +4139,9 @@ 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_unique_abbrev(p->one->oid.hash, opt->abbrev));
+ fprintf(opt->file, "%s ",
+ diff_unique_abbrev(p->two->oid.hash, opt->abbrev));
}
if (p->score) {
fprintf(opt->file, "%c%03d%c", p->status, similarity_index(p),
@@ -4050,11 +4190,11 @@ int diff_unmodified_pair(struct diff_filepair *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;
}
@@ -4115,7 +4255,7 @@ void diff_debug_filespec(struct diff_filespec *s, int x, const char *one)
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);
@@ -4185,11 +4325,11 @@ static void diff_resolve_rename_copy(void)
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
@@ -4331,7 +4471,7 @@ static void patch_id_consume(void *priv, char *line, unsigned long 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;
@@ -4366,9 +4506,6 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
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));
@@ -4403,29 +4540,40 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
len2, p->two->path);
git_SHA1_Update(&ctx, buffer, len1);
+ 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;
}
xpp.flags = 0;
xecfg.ctxlen = 3;
xecfg.flags = 0;
- xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
- &xpp, &xecfg);
+ if (xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
+ &xpp, &xecfg))
+ return error("unable to generate patch-id diff for %s",
+ p->one->path);
}
git_SHA1_Final(sha1, &ctx);
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]);
@@ -4528,7 +4676,7 @@ void diff_flush(struct diff_options *options)
show_stats(&diffstat, options);
if (output_format & DIFF_FORMAT_SHORTSTAT)
show_shortstats(&diffstat, options);
- if (output_format & DIFF_FORMAT_DIRSTAT)
+ if (output_format & DIFF_FORMAT_DIRSTAT && dirstat_by_line)
show_dirstat_by_line(&diffstat, options);
free_diffstat_info(&diffstat);
separator++;
@@ -4696,10 +4844,10 @@ static int diff_filespec_check_stat_unmatch(struct diff_filepair *p)
*/
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, 1) ||
- diff_populate_filespec(p->two, 1) ||
+ diff_populate_filespec(p->one, CHECK_SIZE_ONLY) ||
+ diff_populate_filespec(p->two, CHECK_SIZE_ONLY) ||
(p->one->size != p->two->size) ||
!diff_filespec_is_identical(p->one, p->two)) /* (2) */
p->skip_stat_unmatch_result = 1;
@@ -4752,6 +4900,7 @@ void diffcore_fix_diff_index(struct diff_options *options)
void diffcore_std(struct diff_options *options)
{
+ /* NOTE please keep the following in sync with diff_tree_combined() */
if (options->skip_stat_unmatch)
diffcore_skip_stat_unmatch(options);
if (!options->found_follow) {
@@ -4940,7 +5089,7 @@ static char *run_textconv(const char *pgm, struct diff_filespec *spec,
struct diff_tempfile *temp;
const char *argv[3];
const char **arg = argv;
- struct child_process child;
+ struct child_process child = CHILD_PROCESS_INIT;
struct strbuf buf = STRBUF_INIT;
int err = 0;
@@ -4949,7 +5098,6 @@ static char *run_textconv(const char *pgm, struct diff_filespec *spec,
*arg++ = temp->name;
*arg = NULL;
- memset(&child, 0, sizeof(child));
child.use_shell = 1;
child.argv = argv;
child.out = -1;
@@ -4978,7 +5126,7 @@ size_t fill_textconv(struct userdiff_driver *driver,
{
size_t size;
- if (!driver || !driver->textconv) {
+ if (!driver) {
if (!DIFF_FILE_VALID(df)) {
*outbuf = "";
return 0;
@@ -4989,8 +5137,12 @@ size_t fill_textconv(struct userdiff_driver *driver,
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;
@@ -5000,9 +5152,9 @@ size_t fill_textconv(struct userdiff_driver *driver,
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,
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-17 11:49:50 +0000