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builtin/apply: make parse_single_patch() return -1 on error
To libify `git apply` functionality we have to signal errors to the caller instead of die()ing. To do that in a compatible manner with the rest of the error handling in builtin/apply.c, parse_single_patch() should return a negative integer instead of calling die(). Let's do that by using error() and let's adjust the related test cases accordingly. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -1671,6 +1671,10 @@ static int parse_fragment(struct apply_state *state,
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*
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* The (fragment->patch, fragment->size) pair points into the memory given
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* by the caller, not a copy, when we return.
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*
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* Returns:
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* -1 in case of error,
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* the number of bytes in the patch otherwise.
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*/
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static int parse_single_patch(struct apply_state *state,
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const char *line,
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@ -1688,8 +1692,10 @@ static int parse_single_patch(struct apply_state *state,
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fragment = xcalloc(1, sizeof(*fragment));
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fragment->linenr = state->linenr;
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len = parse_fragment(state, line, size, patch, fragment);
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if (len <= 0)
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die(_("corrupt patch at line %d"), state->linenr);
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if (len <= 0) {
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free(fragment);
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return error(_("corrupt patch at line %d"), state->linenr);
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}
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fragment->patch = line;
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fragment->size = len;
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oldlines += fragment->oldlines;
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@ -1725,9 +1731,9 @@ static int parse_single_patch(struct apply_state *state,
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patch->is_delete = 0;
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if (0 < patch->is_new && oldlines)
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die(_("new file %s depends on old contents"), patch->new_name);
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return error(_("new file %s depends on old contents"), patch->new_name);
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if (0 < patch->is_delete && newlines)
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die(_("deleted file %s still has contents"), patch->old_name);
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return error(_("deleted file %s still has contents"), patch->old_name);
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if (!patch->is_delete && !newlines && context)
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fprintf_ln(stderr,
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_("** warning: "
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@ -2029,6 +2035,9 @@ static int parse_chunk(struct apply_state *state, char *buffer, unsigned long si
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size - offset - hdrsize,
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patch);
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if (patchsize < 0)
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return -128;
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if (!patchsize) {
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static const char git_binary[] = "GIT binary patch\n";
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int hd = hdrsize + offset;
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@ -68,7 +68,7 @@ test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
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sed -e "s/-CIT/xCIT/" <output >broken &&
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test_must_fail git apply --stat --summary broken 2>detected &&
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detected=$(cat detected) &&
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detected=$(expr "$detected" : "fatal.*at line \\([0-9]*\\)\$") &&
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detected=$(expr "$detected" : "error.*at line \\([0-9]*\\)\$") &&
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detected=$(sed -ne "${detected}p" broken) &&
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test "$detected" = xCIT
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'
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@ -77,7 +77,7 @@ test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
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git diff --binary | sed -e "s/-CIT/xCIT/" >broken &&
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test_must_fail git apply --stat --summary broken 2>detected &&
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detected=$(cat detected) &&
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detected=$(expr "$detected" : "fatal.*at line \\([0-9]*\\)\$") &&
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detected=$(expr "$detected" : "error.*at line \\([0-9]*\\)\$") &&
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detected=$(sed -ne "${detected}p" broken) &&
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test "$detected" = xCIT
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'
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