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messsage: use git_buf in prettify()

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A lot of the tests were checking for overflow, which we don't have
anymore, so we can remove them.
This commit is contained in:
Carlos Martín Nieto 2014-01-26 16:32:49 +01:00
parent ee550477d1
commit e1d7f0035e
4 changed files with 34 additions and 100 deletions
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17
include/git2/message.h
View File

@ -8,6 +8,7 @@
#define INCLUDE_git_message_h__
#include "common.h"
#include "buffer.h"
/**
* @file git2/message.h
@ -23,25 +24,17 @@ GIT_BEGIN_DECL
*
* Optionally, can remove lines starting with a "#".
*
* @param out The user-allocated buffer which will be filled with the
* cleaned up message. Pass NULL if you just want to get the needed
* size of the prettified message as the output value.
*
* @param out_size Size of the `out` buffer in bytes.
* @param out The user-allocated git_buf which will be filled with the
* cleaned up message.
*
* @param message The message to be prettified.
*
* @param strip_comments Non-zero to remove lines starting with "#", 0 to
* leave them in.
*
* @return -1 on error, else number of characters in prettified message
* including the trailing NUL byte
* @return 0 or an error code.
*/
GIT_EXTERN(int) git_message_prettify(
char *out,
size_t out_size,
const char *message,
int strip_comments);
GIT_EXTERN(int) git_message_prettify(git_buf *out, const char *message, int strip_comments);
/** @} */
GIT_END_DECL

30
src/message.c
View File

@ -21,7 +21,7 @@ static size_t line_length_without_trailing_spaces(const char *line, size_t len)
/* Greatly inspired from git.git "stripspace" */
/* see https://github.com/git/git/blob/497215d8811ac7b8955693ceaad0899ecd894ed2/builtin/stripspace.c#L4-67 */
int git_message__prettify(git_buf *message_out, const char *message, int strip_comments)
int git_message_prettify(git_buf *message_out, const char *message, int strip_comments)
{
const size_t message_len = strlen(message);
@ -29,6 +29,8 @@ int git_message__prettify(git_buf *message_out, const char *message, int strip_c
size_t i, line_length, rtrimmed_line_length;
char *next_newline;
git_buf_sanitize(message_out);
for (i = 0; i < strlen(message); i += line_length) {
next_newline = memchr(message + i, '\n', message_len - i);
@ -58,29 +60,3 @@ int git_message__prettify(git_buf *message_out, const char *message, int strip_c
return git_buf_oom(message_out) ? -1 : 0;
}
int git_message_prettify(char *message_out, size_t buffer_size, const char *message, int strip_comments)
{
git_buf buf = GIT_BUF_INIT;
ssize_t out_size = -1;
if (message_out && buffer_size)
*message_out = '\0';
if (git_message__prettify(&buf, message, strip_comments) < 0)
goto done;
if (message_out && buf.size + 1 > buffer_size) { /* +1 for NUL byte */
giterr_set(GITERR_INVALID, "Buffer too short to hold the cleaned message");
goto done;
}
if (message_out)
git_buf_copy_cstr(message_out, buffer_size, &buf);
out_size = buf.size + 1;
done:
git_buf_free(&buf);
return (int)out_size;
}

8
tests/object/commit/commitstagedfile.c
View File

@ -25,7 +25,7 @@ void test_object_commit_commitstagedfile__generate_predictable_object_ids(void)
git_oid expected_blob_oid, tree_oid, expected_tree_oid, commit_oid, expected_commit_oid;
git_signature *signature;
git_tree *tree;
char buffer[128];
git_buf buffer;
/*
* The test below replicates the following git scenario
@ -111,7 +111,8 @@ void test_object_commit_commitstagedfile__generate_predictable_object_ids(void)
cl_git_pass(git_signature_new(&signature, "nulltoken", "emeric.fermas@gmail.com", 1323847743, 60));
cl_git_pass(git_tree_lookup(&tree, repo, &tree_oid));
cl_assert_equal_i(16, git_message_prettify(buffer, 128, "Initial commit", 0));
memset(&buffer, 0, sizeof(git_buf));
cl_git_pass(git_message_prettify(&buffer, "Initial commit", 0));
cl_git_pass(git_commit_create_v(
&commit_oid,
@ -120,12 +121,13 @@ void test_object_commit_commitstagedfile__generate_predictable_object_ids(void)
signature,
signature,
NULL,
buffer,
buffer.ptr,
tree,
0));
cl_assert(git_oid_cmp(&expected_commit_oid, &commit_oid) == 0);
git_buf_free(&buffer);
git_signature_free(signature);
git_tree_free(tree);
git_index_free(index);

79
tests/object/message.c
View File

@ -6,7 +6,7 @@ static void assert_message_prettifying(char *expected_output, char *input, int s
{
git_buf prettified_message = GIT_BUF_INIT;
git_message__prettify(&prettified_message, input, strip_comments);
git_message_prettify(&prettified_message, input, strip_comments);
cl_assert_equal_s(expected_output, git_buf_cstr(&prettified_message));
git_buf_free(&prettified_message);
@ -172,65 +172,28 @@ void test_object_message__keep_comments(void)
void test_object_message__message_prettify(void)
{
char buffer[100];
git_buf buffer;
cl_assert(git_message_prettify(buffer, sizeof(buffer), "", 0) == 1);
cl_assert_equal_s(buffer, "");
cl_assert(git_message_prettify(buffer, sizeof(buffer), "", 1) == 1);
cl_assert_equal_s(buffer, "");
memset(&buffer, 0, sizeof(buffer));
cl_git_pass(git_message_prettify(&buffer, "", 0));
cl_assert_equal_s(buffer.ptr, "");
git_buf_free(&buffer);
cl_git_pass(git_message_prettify(&buffer, "", 1));
cl_assert_equal_s(buffer.ptr, "");
git_buf_free(&buffer);
cl_assert_equal_i(7, git_message_prettify(buffer, sizeof(buffer), "Short", 0));
cl_assert_equal_s("Short\n", buffer);
cl_assert_equal_i(7, git_message_prettify(buffer, sizeof(buffer), "Short", 1));
cl_assert_equal_s("Short\n", buffer);
cl_git_pass(git_message_prettify(&buffer, "Short", 0));
cl_assert_equal_s("Short\n", buffer.ptr);
git_buf_free(&buffer);
cl_git_pass(git_message_prettify(&buffer, "Short", 1));
cl_assert_equal_s("Short\n", buffer.ptr);
git_buf_free(&buffer);
cl_assert(git_message_prettify(buffer, sizeof(buffer), "This is longer\nAnd multiline\n# with some comments still in\n", 0) > 0);
cl_assert_equal_s(buffer, "This is longer\nAnd multiline\n# with some comments still in\n");
cl_git_pass(git_message_prettify(&buffer, "This is longer\nAnd multiline\n# with some comments still in\n", 0));
cl_assert_equal_s(buffer.ptr, "This is longer\nAnd multiline\n# with some comments still in\n");
git_buf_free(&buffer);
cl_assert(git_message_prettify(buffer, sizeof(buffer), "This is longer\nAnd multiline\n# with some comments still in\n", 1) > 0);
cl_assert_equal_s(buffer, "This is longer\nAnd multiline\n");
/* try out overflow */
cl_assert(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "12345678",
0) > 0);
cl_assert_equal_s(buffer,
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "12345678\n");
cl_assert(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "12345678\n",
0) > 0);
cl_assert_equal_s(buffer,
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "12345678\n");
cl_git_fail(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "123456789",
0));
cl_git_fail(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "123456789\n",
0));
cl_git_fail(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890",
0));
cl_git_fail(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890"
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890""x",
0));
cl_assert(git_message_prettify(buffer, sizeof(buffer),
"1234567890" "1234567890" "1234567890" "1234567890" "1234567890\n"
"# 1234567890" "1234567890" "1234567890" "1234567890" "1234567890\n"
"1234567890",
1) > 0);
cl_assert(git_message_prettify(NULL, 0, "", 0) == 1);
cl_assert(git_message_prettify(NULL, 0, "Short test", 0) == 12);
cl_assert(git_message_prettify(NULL, 0, "Test\n# with\nComments", 1) == 15);
cl_git_pass(git_message_prettify(&buffer, "This is longer\nAnd multiline\n# with some comments still in\n", 1));
cl_assert_equal_s(buffer.ptr, "This is longer\nAnd multiline\n");
git_buf_free(&buffer);
}