diff options
| -rw-r--r-- | Documentation/git-apply.txt | 9 | ||||
| -rw-r--r-- | builtin-apply.c | 116 | ||||
| -rwxr-xr-x | t/t4117-apply-reject.sh | 96 |
3 files changed, 198 insertions, 23 deletions
diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt index f1ab1f9da..11641a92e 100644 --- a/Documentation/git-apply.txt +++ b/Documentation/git-apply.txt @@ -11,7 +11,7 @@ SYNOPSIS [verse] 'git-apply' [--stat] [--numstat] [--summary] [--check] [--index] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] - [--reverse] [-z] [-pNUM] + [--reverse] [--reject] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] [<patch>...] @@ -66,6 +66,13 @@ OPTIONS --reverse:: Apply the patch in reverse. +--reject:: + For atomicity, `git apply` fails the whole patch and + does not touch the working tree when some of the hunks + do not apply by default. This option makes it apply + parts of the patch that are applicable, and send the + rejected hunks to the standard output of the command. + -z:: When showing the index information, do not munge paths, but use NUL terminated machine readable format. Without diff --git a/builtin-apply.c b/builtin-apply.c index 4737b64c3..7dea91383 100644 --- a/builtin-apply.c +++ b/builtin-apply.c @@ -38,12 +38,13 @@ static int summary; static int check; static int apply = 1; static int apply_in_reverse; +static int apply_with_reject; static int no_add; static int show_index_info; static int line_termination = '\n'; static unsigned long p_context = -1; static const char apply_usage[] = -"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [--reverse] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>..."; +"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [--reverse] [--reject] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>..."; static enum whitespace_eol { nowarn_whitespace, @@ -122,6 +123,7 @@ struct fragment { unsigned long newpos, newlines; const char *patch; int size; + int rejected; struct fragment *next; }; @@ -138,6 +140,7 @@ struct patch { char *new_name, *old_name, *def_name; unsigned int old_mode, new_mode; int is_rename, is_copy, is_new, is_delete, is_binary; + int rejected; unsigned long deflate_origlen; int lines_added, lines_deleted; int score; @@ -1548,7 +1551,8 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i lines = 0; pos = frag->newpos; for (;;) { - offset = find_offset(buf, desc->size, oldlines, oldsize, pos, &lines); + offset = find_offset(buf, desc->size, + oldlines, oldsize, pos, &lines); if (match_end && offset + oldsize != desc->size) offset = -1; if (match_beginning && offset) @@ -1561,8 +1565,10 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i /* Warn if it was necessary to reduce the number * of context lines. */ - if ((leading != frag->leading) || (trailing != frag->trailing)) - fprintf(stderr, "Context reduced to (%ld/%ld) to apply fragment at %d\n", + if ((leading != frag->leading) || + (trailing != frag->trailing)) + fprintf(stderr, "Context reduced to (%ld/%ld)" + " to apply fragment at %d\n", leading, trailing, pos + lines); if (size > alloc) { @@ -1572,7 +1578,9 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i desc->buffer = buf; } desc->size = size; - memmove(buf + offset + newsize, buf + offset + oldsize, size - offset - newsize); + memmove(buf + offset + newsize, + buf + offset + oldsize, + size - offset - newsize); memcpy(buf + offset, newlines, newsize); offset = 0; @@ -1736,9 +1744,12 @@ static int apply_fragments(struct buffer_desc *desc, struct patch *patch) return apply_binary(desc, patch); while (frag) { - if (apply_one_fragment(desc, frag, patch->inaccurate_eof) < 0) - return error("patch failed: %s:%ld", - name, frag->oldpos); + if (apply_one_fragment(desc, frag, patch->inaccurate_eof)) { + error("patch failed: %s:%ld", name, frag->oldpos); + if (!apply_with_reject) + return -1; + frag->rejected = 1; + } frag = frag->next; } return 0; @@ -1774,8 +1785,9 @@ static int apply_data(struct patch *patch, struct stat *st, struct cache_entry * desc.size = size; desc.alloc = alloc; desc.buffer = buf; + if (apply_fragments(&desc, patch) < 0) - return -1; + return -1; /* note with --reject this succeeds. */ /* NUL terminate the result */ if (desc.alloc <= desc.size) @@ -1800,6 +1812,7 @@ static int check_patch(struct patch *patch, struct patch *prev_patch) struct cache_entry *ce = NULL; int ok_if_exists; + patch->rejected = 1; /* we will drop this after we succeed */ if (old_name) { int changed = 0; int stat_ret = 0; @@ -1905,6 +1918,7 @@ static int check_patch(struct patch *patch, struct patch *prev_patch) if (apply_data(patch, &st, ce) < 0) return error("%s: patch does not apply", name); + patch->rejected = 0; return 0; } @@ -2223,23 +2237,73 @@ static void write_out_one_result(struct patch *patch, int phase) if (phase == 0) remove_file(patch); if (phase == 1) - create_file(patch); + create_file(patch); } -static void write_out_results(struct patch *list, int skipped_patch) +static int write_out_one_reject(struct patch *patch) +{ + struct fragment *frag; + int rejects = 0; + + for (rejects = 0, frag = patch->fragments; frag; frag = frag->next) { + if (!frag->rejected) + continue; + if (rejects == 0) { + rejects = 1; + printf("** Rejected hunk(s) for "); + if (patch->old_name && patch->new_name && + strcmp(patch->old_name, patch->new_name)) { + write_name_quoted(NULL, 0, + patch->old_name, 1, stdout); + fputs(" => ", stdout); + write_name_quoted(NULL, 0, + patch->new_name, 1, stdout); + } + else { + const char *n = patch->new_name; + if (!n) + n = patch->old_name; + write_name_quoted(NULL, 0, n, 1, stdout); + } + printf(" **\n"); + } + printf("%.*s", frag->size, frag->patch); + if (frag->patch[frag->size-1] != '\n') + putchar('\n'); + } + return rejects; +} + +static int write_out_results(struct patch *list, int skipped_patch) { int phase; + int errs = 0; + struct patch *l; if (!list && !skipped_patch) - die("No changes"); + return error("No changes"); for (phase = 0; phase < 2; phase++) { - struct patch *l = list; + l = list; + while (l) { + if (l->rejected) + errs = 1; + else + write_out_one_result(l, phase); + l = l->next; + } + } + if (apply_with_reject) { + l = list; while (l) { - write_out_one_result(l, phase); + if (!l->rejected) { + if (write_out_one_reject(l)) + errs = 1; + } l = l->next; } } + return errs; } static struct lock_file lock_file; @@ -2314,11 +2378,13 @@ static int apply_patch(int fd, const char *filename, int inaccurate_eof) die("unable to read index file"); } - if ((check || apply) && check_patch_list(list) < 0) + if ((check || apply) && + check_patch_list(list) < 0 && + !apply_with_reject) exit(1); - if (apply) - write_out_results(list, skipped_patch); + if (apply && write_out_results(list, skipped_patch)) + exit(1); if (show_index_info) show_index_list(list); @@ -2351,6 +2417,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix) int i; int read_stdin = 1; int inaccurate_eof = 0; + int errs = 0; const char *whitespace_option = NULL; @@ -2360,7 +2427,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix) int fd; if (!strcmp(arg, "-")) { - apply_patch(0, "<stdin>", inaccurate_eof); + errs |= apply_patch(0, "<stdin>", inaccurate_eof); read_stdin = 0; continue; } @@ -2441,6 +2508,10 @@ int cmd_apply(int argc, const char **argv, const char *prefix) apply_in_reverse = 1; continue; } + if (!strcmp(arg, "--reject")) { + apply = apply_with_reject = 1; + continue; + } if (!strcmp(arg, "--inaccurate-eof")) { inaccurate_eof = 1; continue; @@ -2461,18 +2532,19 @@ int cmd_apply(int argc, const char **argv, const char *prefix) usage(apply_usage); read_stdin = 0; set_default_whitespace_mode(whitespace_option); - apply_patch(fd, arg, inaccurate_eof); + errs |= apply_patch(fd, arg, inaccurate_eof); close(fd); } set_default_whitespace_mode(whitespace_option); if (read_stdin) - apply_patch(0, "<stdin>", inaccurate_eof); + errs |= apply_patch(0, "<stdin>", inaccurate_eof); if (whitespace_error) { if (squelch_whitespace_errors && squelch_whitespace_errors < whitespace_error) { int squelched = whitespace_error - squelch_whitespace_errors; - fprintf(stderr, "warning: squelched %d whitespace error%s\n", + fprintf(stderr, "warning: squelched %d " + "whitespace error%s\n", squelched, squelched == 1 ? "" : "s"); } @@ -2500,5 +2572,5 @@ int cmd_apply(int argc, const char **argv, const char *prefix) die("Unable to write new index file"); } - return 0; + return !!errs; } diff --git a/t/t4117-apply-reject.sh b/t/t4117-apply-reject.sh new file mode 100755 index 000000000..3362819c3 --- /dev/null +++ b/t/t4117-apply-reject.sh @@ -0,0 +1,96 @@ +#!/bin/sh +# +# Copyright (c) 2005 Junio C Hamano +# + +test_description='git-apply with rejects + +' + +. ./test-lib.sh + +test_expect_success setup ' + for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 + do + echo $i + done >file1 && + cat file1 >saved.file1 && + git update-index --add file1 && + git commit -m initial && + + for i in 1 2 A B 4 5 6 7 8 9 10 11 12 C 13 14 15 16 17 18 19 20 D 21 + do + echo $i + done >file1 && + git diff >patch.1 && + + mv file1 file2 && + git update-index --add --remove file1 file2 && + git diff -M HEAD >patch.2 && + + rm -f file1 file2 && + mv saved.file1 file1 && + git update-index --add --remove file1 file2 && + + for i in 1 E 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 F 21 + do + echo $i + done >file1 && + + cat file1 >saved.file1 +' + +test_expect_success 'apply without --reject should fail' ' + + if git apply patch.1 + then + echo "Eh? Why?" + exit 1 + fi + + diff -u file1 saved.file1 +' + +test_expect_success 'apply with --reject should fail but update the file' ' + + cat saved.file1 >file1 + + if git apply --reject patch.1 >rejects + then + echo "succeeds with --reject?" + exit 1 + fi + cat rejects + for i in 1 E 2 3 4 5 6 7 8 9 10 11 12 C 13 14 15 16 17 18 19 20 F 21 + do + echo $i + done >expected.file1 && + + diff -u file1 expected.file1 +' + +test_expect_success 'apply with --reject should fail but update the file' ' + + cat saved.file1 >file1 + + if git apply --reject patch.2 >rejects + then + echo "succeeds with --reject?" + exit 1 + fi + + cat rejects + + for i in 1 E 2 3 4 5 6 7 8 9 10 11 12 C 13 14 15 16 17 18 19 20 F 21 + do + echo $i + done >expected.file2 && + + test -f file1 && { + echo "file1 still exists?" + exit 1 + } + diff -u file2 expected.file2 +' + +test_done |