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test-svn-fe: split off "test-svn-fe -d" into a separate function

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The helper for testing the svndiff library is getting dangerously
close to the right margin.  Split it off into a separate function so
it is easier to contemplate on its own.

In the process, make the test_svnfe_usage[] string static so it can be
shared by the two functions (and other future functions in this test
program) without fuss.

In other words, this just unindents the code a little.  No functional
change intended.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
This commit is contained in:
Jonathan Nieder 2011-05-27 04:28:46 -05:00
parent c846e41078
commit b747e5675d
1 changed files with 32 additions and 22 deletions
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54
test-svn-fe.c
View File

@ -8,10 +8,37 @@
#include "vcs-svn/sliding_window.h"
#include "vcs-svn/line_buffer.h"
static const char test_svnfe_usage[] =
"test-svn-fe (<dumpfile> | [-d] <preimage> <delta> <len>)";
static int apply_delta(int argc, char *argv[])
{
struct line_buffer preimage = LINE_BUFFER_INIT;
struct line_buffer delta = LINE_BUFFER_INIT;
struct sliding_view preimage_view = SLIDING_VIEW_INIT(&preimage);
if (argc != 5)
usage(test_svnfe_usage);
if (buffer_init(&preimage, argv[2]))
die_errno("cannot open preimage");
if (buffer_init(&delta, argv[3]))
die_errno("cannot open delta");
if (svndiff0_apply(&delta, (off_t) strtoull(argv[4], NULL, 0),
&preimage_view, stdout))
return 1;
if (buffer_deinit(&preimage))
die_errno("cannot close preimage");
if (buffer_deinit(&delta))
die_errno("cannot close delta");
buffer_reset(&preimage);
strbuf_release(&preimage_view.buf);
buffer_reset(&delta);
return 0;
}
int main(int argc, char *argv[])
{
static const char test_svnfe_usage[] =
"test-svn-fe (<dumpfile> | [-d] <preimage> <delta> <len>)";
if (argc == 2) {
if (svndump_init(argv[1]))
return 1;
@ -20,25 +47,8 @@ int main(int argc, char *argv[])
svndump_reset();
return 0;
}
if (argc == 5 && !strcmp(argv[1], "-d")) {
struct line_buffer preimage = LINE_BUFFER_INIT;
struct line_buffer delta = LINE_BUFFER_INIT;
struct sliding_view preimage_view = SLIDING_VIEW_INIT(&preimage);
if (buffer_init(&preimage, argv[2]))
die_errno("cannot open preimage");
if (buffer_init(&delta, argv[3]))
die_errno("cannot open delta");
if (svndiff0_apply(&delta, (off_t) strtoull(argv[4], NULL, 0),
&preimage_view, stdout))
return 1;
if (buffer_deinit(&preimage))
die_errno("cannot close preimage");
if (buffer_deinit(&delta))
die_errno("cannot close delta");
buffer_reset(&preimage);
strbuf_release(&preimage_view.buf);
buffer_reset(&delta);
return 0;
}
if (argc >= 2 && !strcmp(argv[1], "-d"))
return apply_delta(argc, argv);
usage(test_svnfe_usage);
}