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authorLukas Sandström <lukass@etek.chalmers.se>2006-06-13 20:21:46 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-06-19 04:58:20 (GMT)
commite690e84315de1bb806eb2292f8a87cbee30b75ab (patch)
tree1df203cb4d211865b972a8885effc64c8e7f9df2 /mailsplit.c
parent8ed05fb5e90f8ad2051ff7071b7425a53c594892 (diff)
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Make git-mailsplit a builtin
Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'mailsplit.c')
-rw-r--r--mailsplit.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/mailsplit.c b/mailsplit.c
deleted file mode 100644
index 70a569c..0000000
--- a/mailsplit.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * 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 <unistd.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <stdio.h>
-#include "cache.h"
-
-static const char git_mailsplit_usage[] =
-"git-mailsplit [-d<prec>] [-f<n>] [-b] -o<directory> <mbox>...";
-
-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;
-}
-
-/* Could be as small as 64, enough to hold a Unix "From " line. */
-static char buf[4096];
-
-/* 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 = NULL;
- int len = strlen(buf);
- int fd;
- int status = 0;
- int is_bare = !is_from_line(buf, len);
-
- if (is_bare && !allow_bare)
- goto corrupt;
-
- fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666);
- if (fd < 0)
- die("cannot open output file %s", name);
- output = fdopen(fd, "w");
-
- /* Copy it out, while searching for a line that begins with
- * "From " and having something that looks like a date format.
- */
- for (;;) {
- int is_partial = (buf[len-1] != '\n');
-
- if (fputs(buf, output) == EOF)
- die("cannot write output");
-
- if (fgets(buf, sizeof(buf), mbox) == NULL) {
- if (feof(mbox)) {
- status = 1;
- break;
- }
- die("cannot read mbox");
- }
- len = strlen(buf);
- if (!is_partial && !is_bare && is_from_line(buf, len))
- break; /* done with one message */
- }
- fclose(output);
- return status;
-
- corrupt:
- if (output)
- fclose(output);
- unlink(name);
- fprintf(stderr, "corrupt mailbox\n");
- exit(1);
-}
-
-int main(int argc, const char **argv)
-{
- int nr = 0, nr_prec = 4;
- int allow_bare = 0;
- const char *dir = NULL;
- const char **argp;
- static const char *stdin_only[] = { "-", NULL };
- char *name;
-
- 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] == 'b' && !arg[2] ) {
- allow_bare = 1;
- } else if ( arg[1] == 'o' && arg[2] ) {
- dir = arg+2;
- } 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;
- }
-
- name = xmalloc(strlen(dir) + 2 + 3 * sizeof(nr));
-
- while (*argp) {
- const char *file = *argp++;
- FILE *f = !strcmp(file, "-") ? stdin : fopen(file, "r");
- int file_done = 0;
-
- if ( !f )
- die ("cannot open mbox %s", file);
-
- if (fgets(buf, sizeof(buf), f) == NULL) {
- if (f == stdin)
- break; /* empty stdin is OK */
- die("cannot read mbox %s", file);
- }
-
- while (!file_done) {
- sprintf(name, "%s/%0*d", dir, nr_prec, ++nr);
- file_done = split_one(f, name, allow_bare);
- }
-
- if (f != stdin)
- fclose(f);
- }
-
- printf("%d\n", nr);
- return 0;
-}