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examples: port 'fetch' to the new API

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This commit is contained in:
Carlos Martín Nieto 2012-04-13 23:37:55 +02:00
parent 7a520f5d8a
commit db0f96a6af
1 changed files with 24 additions and 73 deletions
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97
examples/network/fetch.c
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@ -4,94 +4,45 @@
#include <stdlib.h>
#include <string.h>
static int rename_packfile(char *packname, git_indexer *idx)
{
char path[GIT_PATH_MAX], oid[GIT_OID_HEXSZ + 1], *slash;
int ret;
strcpy(path, packname);
slash = strrchr(path, '/');
if (!slash)
return GIT_EINVALIDARGS;
memset(oid, 0x0, sizeof(oid));
// The name of the packfile is given by it's hash which you can get
// with git_indexer_hash after the index has been written out to
// disk. Rename the packfile to its "real" name in the same
// directory as it was originally (libgit2 stores it in the folder
// where the packs go, so a rename in place is the right thing to do here
git_oid_fmt(oid, git_indexer_hash(idx));
ret = sprintf(slash + 1, "pack-%s.pack", oid);
if(ret < 0)
return GIT_EOSERR;
printf("Renaming pack to %s\n", path);
return rename(packname, path);
}
int fetch(git_repository *repo, int argc, char **argv)
{
git_remote *remote = NULL;
git_indexer *idx = NULL;
git_off_t bytes = 0;
git_indexer_stats stats;
int error;
char *packname = NULL;
// Get the remote and connect to it
printf("Fetching %s\n", argv[1]);
error = git_remote_new(&remote, repo, argv[1], NULL);
if (error < GIT_SUCCESS)
return error;
error = git_remote_connect(remote, GIT_DIR_FETCH);
if (error < GIT_SUCCESS)
return error;
// Download the packfile from the server. As we don't know its hash
// yet, it will get a temporary filename
error = git_remote_download(&packname, remote);
if (error < GIT_SUCCESS)
return error;
// No error and a NULL packname means no packfile was needed
if (packname != NULL) {
printf("The packname is %s\n", packname);
// Create a new instance indexer
error = git_indexer_new(&idx, packname);
if (error < GIT_SUCCESS)
return error;
// This should be run in paralel, but it'd be too complicated for the example
error = git_indexer_run(idx, &stats);
if (error < GIT_SUCCESS)
return error;
printf("Received %d objects\n", stats.total);
// Write the index file. The index will be stored with the
// correct filename
error = git_indexer_write(idx);
if (error < GIT_SUCCESS)
return error;
error = rename_packfile(packname, idx);
if (error < GIT_SUCCESS)
return error;
if (git_remote_load(&remote, repo, argv[1]) == GIT_ENOTFOUND) {
if (git_remote_new(&remote, repo, argv[1], NULL) < 0)
return -1;
}
if (git_remote_connect(remote, GIT_DIR_FETCH) < 0)
return -1;
// Download the packfile and index it
// Doing this in a background thread and printing out what bytes
// and stats.{processed,total} say would make the UI friendlier
if (git_remote_download(remote, &bytes, &stats) < 0) {
git_remote_free(remote);
return -1;
}
printf("Received %d objects in %d bytes\n", stats.total, bytes);
// Update the references in the remote's namespace to point to the
// right commits. This may be needed even if there was no packfile
// to download, which can happen e.g. when the branches have been
// changed but all the neede objects are available locally.
error = git_remote_update_tips(remote);
if (error < GIT_SUCCESS)
return error;
if (git_remote_update_tips(remote) < 0)
return -1;
free(packname);
git_indexer_free(idx);
git_remote_free(remote);
return GIT_SUCCESS;
return 0;
on_error:
git_remote_free(remote);
return -1;
}