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Patch -i support from Berhnard Fischer.

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This commit is contained in:
Rob Landley 2005-09-01 03:02:23 +00:00
parent e0537f6194
commit 078bacf1e9
3 changed files with 26 additions and 14 deletions
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4
TODO
View File

@ -39,8 +39,8 @@ fuser
Would be nice. The basic susv3 options, plus fuser -k. Would be nice. The basic susv3 options, plus fuser -k.
--- ---
patch patch
should have -i support, and simple fuzz factor support to apply patches should have simple fuzz factor support to apply patches at an offset which
at an offset shouldn't take up too much space. shouldn't take up too much space.
--- ---
man man
It would be nice to have a man command. Not one that handles troff or It would be nice to have a man command. Not one that handles troff or

28
editors/patch.c
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@ -107,14 +107,24 @@ extern int patch_main(int argc, char **argv)
{ {
unsigned int patch_level = -1; unsigned int patch_level = -1;
char *patch_line; char *patch_line;
int ret = 0; int ret;
FILE *patch_file = NULL;
/* Handle 'p' option */ {
if (argv[1] && (argv[1][0] == '-') && (argv[1][1] == 'p')) { char *p, *i;
patch_level = atoi(&argv[1][2]); ret = bb_getopt_ulflags(argc, argv, "p:i:", &p, &i);
if (ret & 1)
patch_level = bb_xgetularg10_bnd(p, -1, USHRT_MAX);
if (ret & 2) {
patch_file = bb_xfopen(i, "r");
}
ret = 0;
} }
patch_line = bb_get_line_from_file(stdin); if (!patch_file)
patch_file = stdin;
patch_line = bb_get_line_from_file(patch_file);
while (patch_line) { while (patch_line) {
FILE *src_stream; FILE *src_stream;
FILE *dst_stream; FILE *dst_stream;
@ -133,14 +143,14 @@ extern int patch_main(int argc, char **argv)
*/ */
while (patch_line && strncmp(patch_line, "--- ", 4) != 0) { while (patch_line && strncmp(patch_line, "--- ", 4) != 0) {
free(patch_line); free(patch_line);
patch_line = bb_get_line_from_file(stdin); patch_line = bb_get_line_from_file(patch_file);
} }
/* Extract the filename used before the patch was generated */ /* Extract the filename used before the patch was generated */
original_filename = extract_filename(patch_line, patch_level); original_filename = extract_filename(patch_line, patch_level);
free(patch_line); free(patch_line);
patch_line = bb_get_line_from_file(stdin); patch_line = bb_get_line_from_file(patch_file);
if (strncmp(patch_line, "+++ ", 4) != 0) { if (strncmp(patch_line, "+++ ", 4) != 0) {
ret = 2; ret = 2;
bb_error_msg("Invalid patch"); bb_error_msg("Invalid patch");
@ -183,7 +193,7 @@ extern int patch_main(int argc, char **argv)
printf("patching file %s\n", new_filename); printf("patching file %s\n", new_filename);
/* Handle each hunk */ /* Handle each hunk */
patch_line = bb_get_line_from_file(stdin); patch_line = bb_get_line_from_file(patch_file);
while (patch_line) { while (patch_line) {
unsigned int count; unsigned int count;
unsigned int src_beg_line; unsigned int src_beg_line;
@ -214,7 +224,7 @@ extern int patch_main(int argc, char **argv)
} }
hunk_offset_start = src_cur_line; hunk_offset_start = src_cur_line;
while ((patch_line = bb_get_line_from_file(stdin)) != NULL) { while ((patch_line = bb_get_line_from_file(patch_file)) != NULL) {
if ((*patch_line == '-') || (*patch_line == ' ')) { if ((*patch_line == '-') || (*patch_line == ' ')) {
char *src_line = NULL; char *src_line = NULL;
if (src_stream) { if (src_stream) {

8
include/usage.h
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@ -2064,11 +2064,13 @@
"\t-u\tUnlocks (re-enables) the specified user account" "\t-u\tUnlocks (re-enables) the specified user account"
#define patch_trivial_usage \ #define patch_trivial_usage \
"[-p<num>]" "[-p<num>] [-i<patch.diff>]"
#define patch_full_usage \ #define patch_full_usage \
"[-p<num>]" "[-p<num>]\n" \
"[-i<diff>]"
#define patch_example_usage \ #define patch_example_usage \
"$ patch -p1 <example.diff" "$ patch -p1 <example.diff\n" \
"$ patch -p0 -i example.diff"
#define pidof_trivial_usage \ #define pidof_trivial_usage \
"process-name [OPTION] [process-name ...]" "process-name [OPTION] [process-name ...]"