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author | Joey Hess <joeyh@joeyh.name> | 2016-07-11 18:45:11 -0400 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2016-08-01 15:37:12 -0700 |
commit | da12efb1cb18a354c5f83a46d0fe18d44dd6bd08 (patch) | |
tree | ee06ffe21427ca7edd674f648808d91f0e8b8adc | |
parent | 5a84ca5f359f9882f639a47d6e960115a6e4a42a (diff) | |
download | git-da12efb1cb18a354c5f83a46d0fe18d44dd6bd08.tar.gz |
use smudgeToFile filter in git am
git am updates the work tree and so should use the smudgeToFile filter.
This includes some refactoring into convert_to_working_tree_filter_to_file
to make it check the file after running the smudgeToFile command, and clean
up from a failing command.
Signed-off-by: Joey Hess <joeyh@joeyh.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r-- | apply.c | 16 | ||||
-rw-r--r-- | convert.c | 25 | ||||
-rw-r--r-- | entry.c | 21 | ||||
-rwxr-xr-x | t/t0021-conversion.sh | 13 |
4 files changed, 56 insertions, 19 deletions
@@ -4320,6 +4320,22 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf, if (fd < 0) return 1; + if (can_smudge_to_file(path)) { + close(fd); + fd = convert_to_working_tree_filter_to_file(path, path, buf, size); + if (fd < 0) { + /* smudgeToFile filter failed; continue + * with regular file creation instead. */ + fd = open(path, O_CREAT | O_EXCL | O_WRONLY, (mode & 0100) ? 0777 : 0666); + if (fd < 0) + return -1; + } + else { + close(fd); + return 0; + } + } + if (convert_to_working_tree(path, buf, size, &nbuf)) { size = nbuf.len; buf = nbuf.buf; @@ -1034,13 +1034,34 @@ int convert_to_working_tree(const char *path, const char *src, size_t len, struc return convert_to_working_tree_internal(path, NULL, src, len, dst, 0); } +/* + * Returns fd open to read the worktree file on success. + * On failure, the worktree file will not exist. + */ int convert_to_working_tree_filter_to_file(const char *path, const char *destpath, const char *src, size_t len) { struct strbuf output = STRBUF_INIT; - int ret = convert_to_working_tree_internal(path, destpath, src, len, &output, 0); + int ok = convert_to_working_tree_internal(path, destpath, src, len, &output, 0); /* The smudgeToFile filter stdout is not used. */ strbuf_release(&output); - return ret; + if (ok) { + /* + * Open the file to make sure that it's present + * (and readable) after the command populated it. + */ + int fd = open(path, O_RDONLY); + if (fd < 0) + unlink(path); + return fd; + } + else { + /* + * The command could have created the file before failing, + * so delete it. + */ + unlink(path); + return -1; + } } int renormalize_buffer(const char *path, const char *src, size_t len, struct strbuf *dst) @@ -191,34 +191,21 @@ static int write_entry(struct cache_entry *ce, if (smudge_to_file) { close(fd); - if (convert_to_working_tree_filter_to_file(ce->name, path, new, size)) { + fd = convert_to_working_tree_filter_to_file(ce->name, path, new, size); + if (fd >= 0) { free(new); - /* - * The smudgeToFile filter may have replaced - * or deleted the file; reopen it to make - * sure that the file exists. - */ - fd = open(path, O_RDONLY); - if (fd < 0) - return error_errno("unable to create file %s", path); if (!to_tempfile) fstat_done = fstat_output(fd, state, &st); close(fd); } else { - /* - * The failing smudgeToFile filter may have - * deleted or replaced the file; delete - * the file and re-open for recovery write. - */ - unlink(path); + /* Fall through to normal write below. */ + smudge_to_file = 0; fd = open_output_fd(path, ce, to_tempfile); if (fd < 0) { free(new); return error_errno("unable to create file %s", path); } - /* Fall through to normal write below. */ - smudge_to_file = 0; } } diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh index 0efad9b8d7..42b28aa9f9 100755 --- a/t/t0021-conversion.sh +++ b/t/t0021-conversion.sh @@ -334,6 +334,19 @@ test_expect_success 'recovery from failure of smudgeToFile filter that deletes t test_cmp test fstest.t ' +test_expect_success 'smudgeToFile filter is used by git am' ' + test_config filter.rot13.smudgeToFile ./rot13-to-file.sh && + + git commit fstest.t -m "added fstest.t" && + git format-patch HEAD^ --stdout >fstest.patch && + git reset --hard HEAD^ && + git am fstest.patch && + + test -e rot13-to-file.ran && + rm -f rot13-to-file.ran && + test_cmp test fstest.t +' + test_expect_success 'cleanFromFile filter is not used when clean filter is not configured' ' test_config filter.noclean.smudge ./rot13.sh && test_config filter.noclean.cleanFromFile ./rot13-from-file.sh && |