Squashed 'third_party/git/' content from commit cb71568594
git-subtree-dir: third_party/git git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7
This commit is contained in:
Vincent Ambo
commit
1b593e1ea4
3629 changed files with 1139935 additions and 0 deletions
369
builtin/mailsplit.c
Normal file
369
builtin/mailsplit.c
Normal file
|
|
@ -0,0 +1,369 @@
|
|||
/*
|
||||
* Totally braindamaged mbox splitter program.
|
||||
*
|
||||
* It just splits a mbox into a list of files: "0001" "0002" ..
|
||||
* so you can process them further from there.
|
||||
*/
|
||||
#include "cache.h"
|
||||
#include "builtin.h"
|
||||
#include "string-list.h"
|
||||
#include "strbuf.h"
|
||||
|
||||
static const char git_mailsplit_usage[] =
|
||||
"git mailsplit [-d<prec>] [-f<n>] [-b] [--keep-cr] -o<directory> [(<mbox>|<Maildir>)...]";
|
||||
|
||||
static int is_from_line(const char *line, int len)
|
||||
{
|
||||
const char *colon;
|
||||
|
||||
if (len < 20 || memcmp("From ", line, 5))
|
||||
return 0;
|
||||
|
||||
colon = line + len - 2;
|
||||
line += 5;
|
||||
for (;;) {
|
||||
if (colon < line)
|
||||
return 0;
|
||||
if (*--colon == ':')
|
||||
break;
|
||||
}
|
||||
|
||||
if (!isdigit(colon[-4]) ||
|
||||
!isdigit(colon[-2]) ||
|
||||
!isdigit(colon[-1]) ||
|
||||
!isdigit(colon[ 1]) ||
|
||||
!isdigit(colon[ 2]))
|
||||
return 0;
|
||||
|
||||
/* year */
|
||||
if (strtol(colon+3, NULL, 10) <= 90)
|
||||
return 0;
|
||||
|
||||
/* Ok, close enough */
|
||||
return 1;
|
||||
}
|
||||
|
||||
static struct strbuf buf = STRBUF_INIT;
|
||||
static int keep_cr;
|
||||
static int mboxrd;
|
||||
|
||||
static int is_gtfrom(const struct strbuf *buf)
|
||||
{
|
||||
size_t min = strlen(">From ");
|
||||
size_t ngt;
|
||||
|
||||
if (buf->len < min)
|
||||
return 0;
|
||||
|
||||
ngt = strspn(buf->buf, ">");
|
||||
return ngt && starts_with(buf->buf + ngt, "From ");
|
||||
}
|
||||
|
||||
/* Called with the first line (potentially partial)
|
||||
* already in buf[] -- normally that should begin with
|
||||
* the Unix "From " line. Write it into the specified
|
||||
* file.
|
||||
*/
|
||||
static int split_one(FILE *mbox, const char *name, int allow_bare)
|
||||
{
|
||||
FILE *output;
|
||||
int fd;
|
||||
int status = 0;
|
||||
int is_bare = !is_from_line(buf.buf, buf.len);
|
||||
|
||||
if (is_bare && !allow_bare) {
|
||||
fprintf(stderr, "corrupt mailbox\n");
|
||||
exit(1);
|
||||
}
|
||||
fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666);
|
||||
if (fd < 0)
|
||||
die_errno("cannot open output file '%s'", name);
|
||||
output = xfdopen(fd, "w");
|
||||
|
||||
/* Copy it out, while searching for a line that begins with
|
||||
* "From " and having something that looks like a date format.
|
||||
*/
|
||||
for (;;) {
|
||||
if (!keep_cr && buf.len > 1 && buf.buf[buf.len-1] == '\n' &&
|
||||
buf.buf[buf.len-2] == '\r') {
|
||||
strbuf_setlen(&buf, buf.len-2);
|
||||
strbuf_addch(&buf, '\n');
|
||||
}
|
||||
|
||||
if (mboxrd && is_gtfrom(&buf))
|
||||
strbuf_remove(&buf, 0, 1);
|
||||
|
||||
if (fwrite(buf.buf, 1, buf.len, output) != buf.len)
|
||||
die_errno("cannot write output");
|
||||
|
||||
if (strbuf_getwholeline(&buf, mbox, '\n')) {
|
||||
if (feof(mbox)) {
|
||||
status = 1;
|
||||
break;
|
||||
}
|
||||
die_errno("cannot read mbox");
|
||||
}
|
||||
if (!is_bare && is_from_line(buf.buf, buf.len))
|
||||
break; /* done with one message */
|
||||
}
|
||||
fclose(output);
|
||||
return status;
|
||||
}
|
||||
|
||||
static int populate_maildir_list(struct string_list *list, const char *path)
|
||||
{
|
||||
DIR *dir;
|
||||
struct dirent *dent;
|
||||
char *name = NULL;
|
||||
char *subs[] = { "cur", "new", NULL };
|
||||
char **sub;
|
||||
int ret = -1;
|
||||
|
||||
for (sub = subs; *sub; ++sub) {
|
||||
free(name);
|
||||
name = xstrfmt("%s/%s", path, *sub);
|
||||
if ((dir = opendir(name)) == NULL) {
|
||||
if (errno == ENOENT)
|
||||
continue;
|
||||
error_errno("cannot opendir %s", name);
|
||||
goto out;
|
||||
}
|
||||
|
||||
while ((dent = readdir(dir)) != NULL) {
|
||||
if (dent->d_name[0] == '.')
|
||||
continue;
|
||||
free(name);
|
||||
name = xstrfmt("%s/%s", *sub, dent->d_name);
|
||||
string_list_insert(list, name);
|
||||
}
|
||||
|
||||
closedir(dir);
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
|
||||
out:
|
||||
free(name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int maildir_filename_cmp(const char *a, const char *b)
|
||||
{
|
||||
while (*a && *b) {
|
||||
if (isdigit(*a) && isdigit(*b)) {
|
||||
long int na, nb;
|
||||
na = strtol(a, (char **)&a, 10);
|
||||
nb = strtol(b, (char **)&b, 10);
|
||||
if (na != nb)
|
||||
return na - nb;
|
||||
/* strtol advanced our pointers */
|
||||
}
|
||||
else {
|
||||
if (*a != *b)
|
||||
return (unsigned char)*a - (unsigned char)*b;
|
||||
a++;
|
||||
b++;
|
||||
}
|
||||
}
|
||||
return (unsigned char)*a - (unsigned char)*b;
|
||||
}
|
||||
|
||||
static int split_maildir(const char *maildir, const char *dir,
|
||||
int nr_prec, int skip)
|
||||
{
|
||||
char *file = NULL;
|
||||
FILE *f = NULL;
|
||||
int ret = -1;
|
||||
int i;
|
||||
struct string_list list = STRING_LIST_INIT_DUP;
|
||||
|
||||
list.cmp = maildir_filename_cmp;
|
||||
|
||||
if (populate_maildir_list(&list, maildir) < 0)
|
||||
goto out;
|
||||
|
||||
for (i = 0; i < list.nr; i++) {
|
||||
char *name;
|
||||
|
||||
free(file);
|
||||
file = xstrfmt("%s/%s", maildir, list.items[i].string);
|
||||
|
||||
f = fopen(file, "r");
|
||||
if (!f) {
|
||||
error_errno("cannot open mail %s", file);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (strbuf_getwholeline(&buf, f, '\n')) {
|
||||
error_errno("cannot read mail %s", file);
|
||||
goto out;
|
||||
}
|
||||
|
||||
name = xstrfmt("%s/%0*d", dir, nr_prec, ++skip);
|
||||
split_one(f, name, 1);
|
||||
free(name);
|
||||
|
||||
fclose(f);
|
||||
f = NULL;
|
||||
}
|
||||
|
||||
ret = skip;
|
||||
out:
|
||||
if (f)
|
||||
fclose(f);
|
||||
free(file);
|
||||
string_list_clear(&list, 1);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int split_mbox(const char *file, const char *dir, int allow_bare,
|
||||
int nr_prec, int skip)
|
||||
{
|
||||
int ret = -1;
|
||||
int peek;
|
||||
|
||||
FILE *f = !strcmp(file, "-") ? stdin : fopen(file, "r");
|
||||
int file_done = 0;
|
||||
|
||||
if (!f) {
|
||||
error_errno("cannot open mbox %s", file);
|
||||
goto out;
|
||||
}
|
||||
|
||||
do {
|
||||
peek = fgetc(f);
|
||||
if (peek == EOF) {
|
||||
if (f == stdin)
|
||||
/* empty stdin is OK */
|
||||
ret = skip;
|
||||
else {
|
||||
fclose(f);
|
||||
error(_("empty mbox: '%s'"), file);
|
||||
}
|
||||
goto out;
|
||||
}
|
||||
} while (isspace(peek));
|
||||
ungetc(peek, f);
|
||||
|
||||
if (strbuf_getwholeline(&buf, f, '\n')) {
|
||||
/* empty stdin is OK */
|
||||
if (f != stdin) {
|
||||
error("cannot read mbox %s", file);
|
||||
goto out;
|
||||
}
|
||||
file_done = 1;
|
||||
}
|
||||
|
||||
while (!file_done) {
|
||||
char *name = xstrfmt("%s/%0*d", dir, nr_prec, ++skip);
|
||||
file_done = split_one(f, name, allow_bare);
|
||||
free(name);
|
||||
}
|
||||
|
||||
if (f != stdin)
|
||||
fclose(f);
|
||||
|
||||
ret = skip;
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
int cmd_mailsplit(int argc, const char **argv, const char *prefix)
|
||||
{
|
||||
int nr = 0, nr_prec = 4, num = 0;
|
||||
int allow_bare = 0;
|
||||
const char *dir = NULL;
|
||||
const char **argp;
|
||||
static const char *stdin_only[] = { "-", NULL };
|
||||
|
||||
for (argp = argv+1; *argp; argp++) {
|
||||
const char *arg = *argp;
|
||||
|
||||
if (arg[0] != '-')
|
||||
break;
|
||||
/* do flags here */
|
||||
if ( arg[1] == 'd' ) {
|
||||
nr_prec = strtol(arg+2, NULL, 10);
|
||||
if (nr_prec < 3 || 10 <= nr_prec)
|
||||
usage(git_mailsplit_usage);
|
||||
continue;
|
||||
} else if ( arg[1] == 'f' ) {
|
||||
nr = strtol(arg+2, NULL, 10);
|
||||
} else if ( arg[1] == 'h' ) {
|
||||
usage(git_mailsplit_usage);
|
||||
} else if ( arg[1] == 'b' && !arg[2] ) {
|
||||
allow_bare = 1;
|
||||
} else if (!strcmp(arg, "--keep-cr")) {
|
||||
keep_cr = 1;
|
||||
} else if ( arg[1] == 'o' && arg[2] ) {
|
||||
dir = arg+2;
|
||||
} else if (!strcmp(arg, "--mboxrd")) {
|
||||
mboxrd = 1;
|
||||
} else if ( arg[1] == '-' && !arg[2] ) {
|
||||
argp++; /* -- marks end of options */
|
||||
break;
|
||||
} else {
|
||||
die("unknown option: %s", arg);
|
||||
}
|
||||
}
|
||||
|
||||
if ( !dir ) {
|
||||
/* Backwards compatibility: if no -o specified, accept
|
||||
<mbox> <dir> or just <dir> */
|
||||
switch (argc - (argp-argv)) {
|
||||
case 1:
|
||||
dir = argp[0];
|
||||
argp = stdin_only;
|
||||
break;
|
||||
case 2:
|
||||
stdin_only[0] = argp[0];
|
||||
dir = argp[1];
|
||||
argp = stdin_only;
|
||||
break;
|
||||
default:
|
||||
usage(git_mailsplit_usage);
|
||||
}
|
||||
} else {
|
||||
/* New usage: if no more argument, parse stdin */
|
||||
if ( !*argp )
|
||||
argp = stdin_only;
|
||||
}
|
||||
|
||||
while (*argp) {
|
||||
const char *arg = *argp++;
|
||||
struct stat argstat;
|
||||
int ret = 0;
|
||||
|
||||
if (arg[0] == '-' && arg[1] == 0) {
|
||||
ret = split_mbox(arg, dir, allow_bare, nr_prec, nr);
|
||||
if (ret < 0) {
|
||||
error("cannot split patches from stdin");
|
||||
return 1;
|
||||
}
|
||||
num += (ret - nr);
|
||||
nr = ret;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (stat(arg, &argstat) == -1) {
|
||||
error_errno("cannot stat %s", arg);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (S_ISDIR(argstat.st_mode))
|
||||
ret = split_maildir(arg, dir, nr_prec, nr);
|
||||
else
|
||||
ret = split_mbox(arg, dir, allow_bare, nr_prec, nr);
|
||||
|
||||
if (ret < 0) {
|
||||
error("cannot split patches from %s", arg);
|
||||
return 1;
|
||||
}
|
||||
num += (ret - nr);
|
||||
nr = ret;
|
||||
}
|
||||
|
||||
printf("%d\n", num);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue