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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <err.h>
/* Split a recursive diff into sub-patches to satisfy the requirement
that each patch only patch a single file */
int
main(int ac, char *av[])
{
int ln;
char line[8192];
char suf[2] = { 'a', 'a' };
FILE *fp = NULL;
memset(line, 0, sizeof(line));
for (ln = 1; fgets(line, sizeof(line) - 1, stdin); ln++)
{
if (line[strlen(line) - 1] != '\n')
errx(1, "line %d is too long", ln);
if (!strncmp(line, "diff", 4) && fp != NULL)
{
fclose(fp);
fp = NULL;
}
if (fp == NULL)
{
char name[200];
snprintf(name, sizeof(name), "patch-%c%c", suf[0], suf[1]);
if (suf[1]++ == 'z')
{
suf[1] = 'a';
suf[0]++;
}
if ((fp = fopen(name, "w")) == NULL)
err(1, "%s", name);
}
fprintf(fp, "%s", line);
}
return(0);
}
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