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patch: support "patch [FILE [PATCH]]" format

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function                                             old     new   delta
xopen_stdin                                            -      15     +15
patch_main                                          2075    2041     -34

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-08-22 05:39:15 +02:00
parent fd27fa8309
commit e7b0a9e5bc
4 changed files with 56 additions and 12 deletions
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35
editors/patch.c
View File

@@ -447,10 +447,21 @@ int patch_main(int argc UNUSED_PARAM, char **argv)
INIT_TT();
opts = getopt32(argv, FLAG_STR, &opt_p, &opt_i);
argv += optind;
reverse = opts & FLAG_REVERSE;
TT.prefix = (opts & FLAG_PATHLEN) ? xatoi(opt_p) : 0; // can be negative!
if (opts & FLAG_INPUT) TT.filepatch = xopen(opt_i, O_RDONLY);
TT.filein = TT.fileout = -1;
if (opts & FLAG_INPUT) {
TT.filepatch = xopen_stdin(opt_i);
} else {
if (argv[0] && argv[1]) {
TT.filepatch = xopen_stdin(argv[1]);
}
}
if (argv[0]) {
oldname = xstrdup(argv[0]);
newname = xstrdup(argv[0]);
}
// Loop through the lines in the patch
for(;;) {
@@ -498,18 +509,20 @@ int patch_main(int argc UNUSED_PARAM, char **argv)
state = 1;
}
free(*name);
finish_oldfile();
// Trim date from end of filename (if any). We don't care.
for (s = patchline+4; *s && *s!='\t'; s++)
if (*s=='\\' && s[1]) s++;
i = atoi(s);
if (i>1900 && i<=1970)
*name = xstrdup("/dev/null");
else {
*s = 0;
*name = xstrdup(patchline+4);
if (!argv[0]) {
free(*name);
// Trim date from end of filename (if any). We don't care.
for (s = patchline+4; *s && *s!='\t'; s++)
if (*s=='\\' && s[1]) s++;
i = atoi(s);
if (i>1900 && i<=1970)
*name = xstrdup("/dev/null");
else {
*s = 0;
*name = xstrdup(patchline+4);
}
}
// We defer actually opening the file because svn produces broken