diff options
| -rw-r--r-- | Documentation/git-fast-export.txt | 4 | ||||
| -rw-r--r-- | Documentation/git-fast-import.txt | 25 | ||||
| -rw-r--r-- | Documentation/git-remote-helpers.txt | 3 | ||||
| -rw-r--r-- | builtin/fast-export.c | 9 | ||||
| -rw-r--r-- | fast-import.c | 8 | ||||
| -rw-r--r-- | git-remote-testgit.py | 62 | ||||
| -rw-r--r-- | git_remote_helpers/git/exporter.py | 15 | ||||
| -rw-r--r-- | git_remote_helpers/git/importer.py | 32 | ||||
| -rw-r--r-- | git_remote_helpers/git/non_local.py | 20 | ||||
| -rw-r--r-- | git_remote_helpers/git/repo.py | 7 | ||||
| -rw-r--r-- | git_remote_helpers/util.py | 81 | ||||
| -rw-r--r-- | remote-curl.c | 10 | ||||
| -rwxr-xr-x | t/t5800-remote-helpers.sh | 93 | ||||
| -rwxr-xr-x | t/t9300-fast-import.sh | 42 | ||||
| -rw-r--r-- | transport-helper.c | 251 |
15 files changed, 475 insertions, 187 deletions
diff --git a/Documentation/git-fast-export.txt b/Documentation/git-fast-export.txt index a29ac021d9..f37eada63a 100644 --- a/Documentation/git-fast-export.txt +++ b/Documentation/git-fast-export.txt @@ -83,6 +83,10 @@ marks the same across runs. allow that. So fake a tagger to be able to fast-import the output. +--use-done-feature:: + Start the stream with a 'feature done' stanza, and terminate + it with a 'done' command. + --no-data:: Skip output of blob objects and instead refer to blobs via their original SHA-1 hash. This is useful when rewriting the diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index 95e480ef79..2969388880 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -102,6 +102,12 @@ OPTIONS when the `cat-blob` command is encountered in the stream. The default behaviour is to write to `stdout`. +--done:: + Require a `done` command at the end of the stream. + This option might be useful for detecting errors that + cause the frontend to terminate before it has started to + write a stream. + --export-pack-edges=<file>:: After creating a packfile, print a line of data to <file> listing the filename of the packfile and the last @@ -331,6 +337,11 @@ and control the current import process. More detailed discussion standard output. This command is optional and is not needed to perform an import. +`done`:: + Marks the end of the stream. This command is optional + unless the `done` feature was requested using the + `--done` command line option or `feature done` command. + `cat-blob`:: Causes fast-import to print a blob in 'cat-file --batch' format to the file descriptor set with `--cat-blob-fd` or @@ -1021,6 +1032,11 @@ notes:: Versions of fast-import not supporting notes will exit with a message indicating so. +done:: + Error out if the stream ends without a 'done' command. + Without this feature, errors causing the frontend to end + abruptly at a convenient point in the stream can go + undetected. `option` ~~~~~~~~ @@ -1050,6 +1066,15 @@ not be passed as option: * cat-blob-fd * force +`done` +~~~~~~ +If the `done` feature is not in use, treated as if EOF was read. +This can be used to tell fast-import to finish early. + +If the `--done` command line option or `feature done` command is +in use, the `done` command is mandatory and marks the end of the +stream. + Crash Reports ------------- If fast-import is supplied invalid input it will terminate with a diff --git a/Documentation/git-remote-helpers.txt b/Documentation/git-remote-helpers.txt index 930b4034ac..4f83dea5a3 100644 --- a/Documentation/git-remote-helpers.txt +++ b/Documentation/git-remote-helpers.txt @@ -48,6 +48,9 @@ arguments. The first argument specifies a remote repository as in git; it is either the name of a configured remote or a URL. The second argument specifies a URL; it is usually of the form '<transport>://<address>', but any arbitrary string is possible. +The 'GIT_DIR' environment variable is set up for the remote helper +and can be used to determine where to store additional data or from +which directory to invoke auxiliary git commands. When git encounters a URL of the form '<transport>://<address>', where '<transport>' is a protocol that it cannot handle natively, it diff --git a/builtin/fast-export.c b/builtin/fast-export.c index daf19451ba..becef85782 100644 --- a/builtin/fast-export.c +++ b/builtin/fast-export.c @@ -26,6 +26,7 @@ static int progress; static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT; static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ABORT; static int fake_missing_tagger; +static int use_done_feature; static int no_data; static int full_tree; @@ -627,6 +628,8 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) "Fake a tagger when tags lack one"), OPT_BOOLEAN(0, "full-tree", &full_tree, "Output full tree for each commit"), + OPT_BOOLEAN(0, "use-done-feature", &use_done_feature, + "Use the done feature to terminate the stream"), { OPTION_NEGBIT, 0, "data", &no_data, NULL, "Skip output of blob data", PARSE_OPT_NOARG | PARSE_OPT_NEGHELP, NULL, 1 }, @@ -648,6 +651,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) if (argc > 1) usage_with_options (fast_export_usage, options); + if (use_done_feature) + printf("feature done\n"); + if (import_filename) import_marks(import_filename); @@ -675,5 +681,8 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) if (export_filename) export_marks(export_filename); + if (use_done_feature) + printf("done\n"); + return 0; } diff --git a/fast-import.c b/fast-import.c index 9e8d1868aa..7cc22625e5 100644 --- a/fast-import.c +++ b/fast-import.c @@ -355,6 +355,7 @@ static unsigned int cmd_save = 100; static uintmax_t next_mark; static struct strbuf new_data = STRBUF_INIT; static int seen_data_command; +static int require_explicit_termination; /* Signal handling */ static volatile sig_atomic_t checkpoint_requested; @@ -3140,6 +3141,8 @@ static int parse_one_feature(const char *feature, int from_stream) relative_marks_paths = 1; } else if (!strcmp(feature, "no-relative-marks")) { relative_marks_paths = 0; + } else if (!strcmp(feature, "done")) { + require_explicit_termination = 1; } else if (!strcmp(feature, "force")) { force_update = 1; } else if (!strcmp(feature, "notes") || !strcmp(feature, "ls")) { @@ -3290,6 +3293,8 @@ int main(int argc, const char **argv) parse_reset_branch(); else if (!strcmp("checkpoint", command_buf.buf)) parse_checkpoint(); + else if (!strcmp("done", command_buf.buf)) + break; else if (!prefixcmp(command_buf.buf, "progress ")) parse_progress(); else if (!prefixcmp(command_buf.buf, "feature ")) @@ -3309,6 +3314,9 @@ int main(int argc, const char **argv) if (!seen_data_command) parse_argv(); + if (require_explicit_termination && feof(stdin)) + die("stream ends early"); + end_packfile(); dump_branches(); diff --git a/git-remote-testgit.py b/git-remote-testgit.py index df9d512f1a..e9c832bfd3 100644 --- a/git-remote-testgit.py +++ b/git-remote-testgit.py @@ -35,7 +35,7 @@ def get_repo(alias, url): prefix = 'refs/testgit/%s/' % alias debug("prefix: '%s'", prefix) - repo.gitdir = "" + repo.gitdir = os.environ["GIT_DIR"] repo.alias = alias repo.prefix = prefix @@ -70,9 +70,19 @@ def do_capabilities(repo, args): print "import" print "export" - print "gitdir" print "refspec refs/heads/*:%s*" % repo.prefix + dirname = repo.get_base_path(repo.gitdir) + + if not os.path.exists(dirname): + os.makedirs(dirname) + + path = os.path.join(dirname, 'testgit.marks') + + print "*export-marks %s" % path + if os.path.exists(path): + print "*import-marks %s" % path + print # end capabilities @@ -121,8 +131,24 @@ def do_import(repo, args): if not repo.gitdir: die("Need gitdir to import") + ref = args[0] + refs = [ref] + + while True: + line = sys.stdin.readline() + if line == '\n': + break + if not line.startswith('import '): + die("Expected import line.") + + # strip of leading 'import ' + ref = line[7:].strip() + refs.append(ref) + repo = update_local_repo(repo) - repo.exporter.export_repo(repo.gitdir) + repo.exporter.export_repo(repo.gitdir, refs) + + print "done" def do_export(repo, args): @@ -132,32 +158,15 @@ def do_export(repo, args): if not repo.gitdir: die("Need gitdir to export") - dirname = repo.get_base_path(repo.gitdir) - - if not os.path.exists(dirname): - os.makedirs(dirname) - - path = os.path.join(dirname, 'testgit.marks') - print path - if os.path.exists(path): - print path - else: - print "" - sys.stdout.flush() - update_local_repo(repo) - repo.importer.do_import(repo.gitdir) - repo.non_local.push(repo.gitdir) - - -def do_gitdir(repo, args): - """Stores the location of the gitdir. - """ + changed = repo.importer.do_import(repo.gitdir) - if not args: - die("gitdir needs an argument") + if not repo.local: + repo.non_local.push(repo.gitdir) - repo.gitdir = ' '.join(args) + for ref in changed: + print "ok %s" % ref + print COMMANDS = { @@ -165,7 +174,6 @@ COMMANDS = { 'list': do_list, 'import': do_import, 'export': do_export, - 'gitdir': do_gitdir, } diff --git a/git_remote_helpers/git/exporter.py b/git_remote_helpers/git/exporter.py index f40f9d6a29..9ee5f96d4c 100644 --- a/git_remote_helpers/git/exporter.py +++ b/git_remote_helpers/git/exporter.py @@ -2,6 +2,8 @@ import os import subprocess import sys +from git_remote_helpers.util import check_call + class GitExporter(object): """An exporter for testgit repositories. @@ -15,7 +17,7 @@ class GitExporter(object): self.repo = repo - def export_repo(self, base): + def export_repo(self, base, refs=None): """Exports a fast-export stream for the given directory. Simply delegates to git fast-epxort and pipes it through sed @@ -23,8 +25,13 @@ class GitExporter(object): default refs/heads. This is to demonstrate how the export data can be stored under it's own ref (using the refspec capability). + + If None, refs defaults to ["HEAD"]. """ + if not refs: + refs = ["HEAD"] + dirname = self.repo.get_base_path(base) path = os.path.abspath(os.path.join(dirname, 'testgit.marks')) @@ -42,12 +49,10 @@ class GitExporter(object): if os.path.exists(path): args.append("--import-marks=" + path) - args.append("HEAD") + args.extend(refs) p1 = subprocess.Popen(args, stdout=subprocess.PIPE) args = ["sed", "s_refs/heads/_" + self.repo.prefix + "_g"] - child = subprocess.Popen(args, stdin=p1.stdout) - if child.wait() != 0: - raise CalledProcessError + check_call(args, stdin=p1.stdout) diff --git a/git_remote_helpers/git/importer.py b/git_remote_helpers/git/importer.py index 70a712729b..5c6b595e16 100644 --- a/git_remote_helpers/git/importer.py +++ b/git_remote_helpers/git/importer.py @@ -1,6 +1,8 @@ import os import subprocess +from git_remote_helpers.util import check_call, check_output + class GitImporter(object): """An importer for testgit repositories. @@ -14,6 +16,18 @@ class GitImporter(object): self.repo = repo + def get_refs(self, gitdir): + """Returns a dictionary with refs. + """ + args = ["git", "--git-dir=" + gitdir, "for-each-ref", "refs/heads"] + lines = check_output(args).strip().split('\n') + refs = {} + for line in lines: + value, name = line.split(' ') + name = name.strip('commit\t') + refs[name] = value + return refs + def do_import(self, base): """Imports a fast-import stream to the given directory. @@ -30,11 +44,23 @@ class GitImporter(object): if not os.path.exists(dirname): os.makedirs(dirname) + refs_before = self.get_refs(gitdir) + args = ["git", "--git-dir=" + gitdir, "fast-import", "--quiet", "--export-marks=" + path] if os.path.exists(path): args.append("--import-marks=" + path) - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + check_call(args) + + refs_after = self.get_refs(gitdir) + + changed = {} + + for name, value in refs_after.iteritems(): + if refs_before.get(name) == value: + continue + + changed[name] = value + + return changed diff --git a/git_remote_helpers/git/non_local.py b/git_remote_helpers/git/non_local.py index f27389bb94..e70025095d 100644 --- a/git_remote_helpers/git/non_local.py +++ b/git_remote_helpers/git/non_local.py @@ -1,7 +1,7 @@ import os import subprocess -from git_remote_helpers.util import die, warn +from git_remote_helpers.util import check_call, die, warn class NonLocalGit(object): @@ -29,9 +29,7 @@ class NonLocalGit(object): os.makedirs(path) args = ["git", "clone", "--bare", "--quiet", self.repo.gitpath, path] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + check_call(args) return path @@ -45,14 +43,10 @@ class NonLocalGit(object): die("could not find repo at %s", path) args = ["git", "--git-dir=" + path, "fetch", "--quiet", self.repo.gitpath] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + check_call(args) args = ["git", "--git-dir=" + path, "update-ref", "refs/heads/master", "FETCH_HEAD"] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + child = check_call(args) def push(self, base): """Pushes from the non-local repo to base. @@ -63,7 +57,5 @@ class NonLocalGit(object): if not os.path.exists(path): die("could not find repo at %s", path) - args = ["git", "--git-dir=" + path, "push", "--quiet", self.repo.gitpath] - child = subprocess.Popen(args) - if child.wait() != 0: - raise CalledProcessError + args = ["git", "--git-dir=" + path, "push", "--quiet", self.repo.gitpath, "--all"] + child = check_call(args) diff --git a/git_remote_helpers/git/repo.py b/git_remote_helpers/git/repo.py index 58e1cdb560..acbf8d7785 100644 --- a/git_remote_helpers/git/repo.py +++ b/git_remote_helpers/git/repo.py @@ -1,6 +1,9 @@ import os import subprocess +from git_remote_helpers.util import check_call + + def sanitize(rev, sep='\t'): """Converts a for-each-ref line to a name/value pair. """ @@ -53,9 +56,7 @@ class GitRepo(object): path = ".cached_revs" ofile = open(path, "w") - child = subprocess.Popen(args, stdout=ofile) - if child.wait() != 0: - raise CalledProcessError + check_call(args, stdout=ofile) output = open(path).readlines() self.revmap = dict(sanitize(i) for i in output) if "HEAD" in self.revmap: diff --git a/git_remote_helpers/util.py b/git_remote_helpers/util.py index dce83e6066..fbbb01b146 100644 --- a/git_remote_helpers/util.py +++ b/git_remote_helpers/util.py @@ -11,6 +11,21 @@ import sys import os import subprocess +try: + from subprocess import CalledProcessError +except ImportError: + # from python2.7:subprocess.py + # Exception classes used by this module. + class CalledProcessError(Exception): + """This exception is raised when a process run by check_call() returns + a non-zero exit status. The exit status will be stored in the + returncode attribute.""" + def __init__(self, returncode, cmd): + self.returncode = returncode + self.cmd = cmd + def __str__(self): + return "Command '%s' returned non-zero exit status %d" % (self.cmd, self.returncode) + # Whether or not to show debug messages DEBUG = False @@ -128,6 +143,72 @@ def run_command (args, cwd = None, shell = False, add_env = None, return (exit_code, output, errors) +# from python2.7:subprocess.py +def call(*popenargs, **kwargs): + """Run command with arguments. Wait for command to complete, then + return the returncode attribute. + + The arguments are the same as for the Popen constructor. Example: + + retcode = call(["ls", "-l"]) + """ + return subprocess.Popen(*popenargs, **kwargs).wait() + + +# from python2.7:subprocess.py +def check_call(*popenargs, **kwargs): + """Run command with arguments. Wait for command to complete. If + the exit code was zero then return, otherwise raise + CalledProcessError. The CalledProcessError object will have the + return code in the returncode attribute. + + The arguments are the same as for the Popen constructor. Example: + + check_call(["ls", "-l"]) + """ + retcode = call(*popenargs, **kwargs) + if retcode: + cmd = kwargs.get("args") + if cmd is None: + cmd = popenargs[0] + raise CalledProcessError(retcode, cmd) + return 0 + + +# from python2.7:subprocess.py +def check_output(*popenargs, **kwargs): + r"""Run command with arguments and return its output as a byte string. + + If the exit code was non-zero it raises a CalledProcessError. The + CalledProcessError object will have the return code in the returncode + attribute and output in the output attribute. + + The arguments are the same as for the Popen constructor. Example: + + >>> check_output(["ls", "-l", "/dev/null"]) + 'crw-rw-rw- 1 root root 1, 3 Oct 18 2007 /dev/null\n' + + The stdout argument is not allowed as it is used internally. + To capture standard error in the result, use stderr=STDOUT. + + >>> check_output(["/bin/sh", "-c", + ... "ls -l non_existent_file ; exit 0"], + ... stderr=STDOUT) + 'ls: non_existent_file: No such file or directory\n' + """ + if 'stdout' in kwargs: + raise ValueError('stdout argument not allowed, it will be overridden.') + process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs) + output, unused_err = process.communicate() + retcode = process.poll() + if retcode: + cmd = kwargs.get("args") + if cmd is None: + cmd = popenargs[0] + raise subprocess.CalledProcessError(retcode, cmd) + return output + + def file_reader_method (missing_ok = False): """Decorator for simplifying reading of files. diff --git a/remote-curl.c b/remote-curl.c index 69831e931a..b8cf45a7dd 100644 --- a/remote-curl.c +++ b/remote-curl.c @@ -855,7 +855,14 @@ int main(int argc, const char **argv) http_init(remote); do { - if (strbuf_getline(&buf, stdin, '\n') == EOF) + if (strbuf_getline(&buf, stdin, '\n') == EOF) { + if (ferror(stdin)) + fprintf(stderr, "Error reading command stream\n"); + else + fprintf(stderr, "Unexpected end of command stream\n"); + return 1; + } + if (buf.len == 0) break; if (!prefixcmp(buf.buf, "fetch ")) { if (nongit) @@ -895,6 +902,7 @@ int main(int argc, const char **argv) printf("\n"); fflush(stdout); } else { + fprintf(stderr, "Unknown command '%s'\n", buf.buf); return 1; } strbuf_reset(&buf); diff --git a/t/t5800-remote-helpers.sh b/t/t5800-remote-helpers.sh index 1fb6380fce..1c62001fce 100755 --- a/t/t5800-remote-helpers.sh +++ b/t/t5800-remote-helpers.sh @@ -7,17 +7,27 @@ test_description='Test remote-helper import and export commands' . ./test-lib.sh -if test_have_prereq PYTHON && "$PYTHON_PATH" -c ' +if ! test_have_prereq PYTHON ; then + skip_all='skipping git-remote-hg tests, python not available' + test_done +fi + +"$PYTHON_PATH" -c ' import sys if sys.hexversion < 0x02040000: sys.exit(1) -' -then - # Requires Python 2.4 or newer - test_set_prereq PYTHON_24 -fi +' || { + skip_all='skipping git-remote-hg tests, python version < 2.4' + test_done +} + +compare_refs() { + git --git-dir="$1/.git" rev-parse --verify $2 >expect && + git --git-dir="$3/.git" rev-parse --verify $4 >actual && + test_cmp expect actual +} -test_expect_success PYTHON_24 'setup repository' ' +test_expect_success 'setup repository' ' git init --bare server/.git && git clone server public && (cd public && @@ -27,54 +37,99 @@ test_expect_success PYTHON_24 'setup repository' ' git push origin master) ' -test_expect_success PYTHON_24 'cloning from local repo' ' +test_expect_success 'cloning from local repo' ' git clone "testgit::${PWD}/server" localclone && test_cmp public/file localclone/file ' -test_expect_success PYTHON_24 'cloning from remote repo' ' +test_expect_success 'cloning from remote repo' ' git clone "testgit::file://${PWD}/server" clone && test_cmp public/file clone/file ' -test_expect_success PYTHON_24 'create new commit on remote' ' +test_expect_success 'create new commit on remote' ' (cd public && echo content >>file && git commit -a -m two && git push) ' -test_expect_success PYTHON_24 'pulling from local repo' ' +test_expect_success 'pulling from local repo' ' (cd localclone && git pull) && test_cmp public/file localclone/file ' -test_expect_success PYTHON_24 'pulling from remote remote' ' +test_expect_success 'pulling from remote remote' ' (cd clone && git pull) && test_cmp public/file clone/file ' -test_expect_success PYTHON_24 'pushing to local repo' ' +test_expect_success 'pushing to local repo' ' (cd localclone && echo content >>file && git commit -a -m three && git push) && - HEAD=$(git --git-dir=localclone/.git rev-parse --verify HEAD) && - test $HEAD = $(git --git-dir=server/.git rev-parse --verify HEAD) + compare_refs localclone HEAD server HEAD ' -test_expect_success PYTHON_24 'synch with changes from localclone' ' +test_expect_success 'synch with changes from localclone' ' (cd clone && git pull) ' -test_expect_success PYTHON_24 'pushing remote local repo' ' +test_expect_success 'pushing remote local repo' ' (cd clone && echo content >>file && git commit -a -m four && git push) && - HEAD=$(git --git-dir=clone/.git rev-parse --verify HEAD) && - test $HEAD = $(git --git-dir=server/.git rev-parse --verify HEAD) + compare_refs clone HEAD server HEAD +' + +test_expect_success 'fetch new branch' ' + (cd public && + git checkout -b new && + echo content >>file && + git commit -a -m five && + git push origin new + ) && + (cd localclone && + git fetch origin new + ) && + compare_refs public HEAD localclone FETCH_HEAD +' + +test_expect_success 'fetch multiple branches' ' + (cd localclone && + git fetch + ) && + compare_refs server master localclone refs/remotes/origin/master && + compare_refs server new localclone refs/remotes/origin/new +' + +test_expect_success 'push when remote has extra refs' ' + (cd clone && + echo content >>file && + git commit -a -m six && + git push + ) && + compare_refs clone master server master +' + +test_expect_success 'push new branch by name' ' + (cd clone && + git checkout -b new-name && + echo content >>file && + git commit -a -m seven && + git push origin new-name + ) && + compare_refs clone HEAD server refs/heads/new-name +' + +test_expect_failure 'push new branch with old:new refspec' ' + (cd clone && + git push origin new-name:new-refspec + ) && + compare_refs clone HEAD server refs/heads/new-refspec ' test_done diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh index 2a53640c5b..f256475020 100755 --- a/t/t9300-fast-import.sh +++ b/t/t9300-fast-import.sh @@ -2197,6 +2197,48 @@ test_expect_success 'R: quiet option results in no stats being output' ' test_cmp empty output ' +test_expect_success 'R: feature done means terminating "done" is mandatory' ' + echo feature done | test_must_fail git fast-import && + test_must_fail git fast-import --done </dev/null +' + +test_expect_success 'R: terminating "done" with trailing gibberish is ok' ' + git fast-import <<-\EOF && + feature done + done + trailing gibberish + EOF + git fast-import <<-\EOF + done + more trailing gibberish + EOF +' + +test_expect_success 'R: terminating "done" within commit' ' + cat >expect <<-\EOF && + OBJID + :000000 100644 OBJID OBJID A hello.c + :000000 100644 OBJID OBJID A hello2.c + EOF + git fast-import <<-EOF && + commit refs/heads/done-ends + committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE + data <<EOT + Commit terminated by "done" command + EOT + M 100644 inline hello.c + data <<EOT + Hello, world. + EOT + C hello.c hello2.c + done + EOF + git rev-list done-ends | + git diff-tree -r --stdin --root --always | + sed -e "s/$_x40/OBJID/g" >actual && + test_cmp expect actual +' + cat >input <<EOF option git non-existing-option EOF diff --git a/transport-helper.c b/transport-helper.c index 660147f9e9..4eab844d4a 100644 --- a/transport-helper.c +++ b/transport-helper.c @@ -23,6 +23,8 @@ struct helper_data { push : 1, connect : 1, no_disconnect_req : 1; + char *export_marks; + char *import_marks; /* These go from remote name (as in "list") to private name */ struct refspec *refspecs; int refspec_nr; @@ -105,6 +107,12 @@ static struct child_process *get_helper(struct transport *transport) int refspec_alloc = 0; int duped; int code; + char git_dir_buf[sizeof(GIT_DIR_ENVIRONMENT) + PATH_MAX + 1]; + const char *helper_env[] = { + git_dir_buf, + NULL + }; + if (data->helper) return data->helper; @@ -120,6 +128,10 @@ static struct child_process *get_helper(struct transport *transport) helper->argv[2] = remove_ext_force(transport->url); helper->git_cmd = 0; helper->silent_exec_failure = 1; + + snprintf(git_dir_buf, sizeof(git_dir_buf), "%s=%s", GIT_DIR_ENVIRONMENT, get_git_dir()); + helper->env = helper_env; + code = start_command(helper); if (code < 0 && errno == ENOENT) die("Unable to find remote helper for '%s'", data->name); @@ -171,14 +183,19 @@ static struct child_process *get_helper(struct transport *transport) ALLOC_GROW(refspecs, refspec_nr + 1, refspec_alloc); - refspecs[refspec_nr++] = strdup(buf.buf + strlen("refspec ")); + refspecs[refspec_nr++] = strdup(capname + strlen("refspec ")); } else if (!strcmp(capname, "connect")) { data->connect = 1; - } else if (!strcmp(buf.buf, "gitdir")) { - struct strbuf gitdir = STRBUF_INIT; - strbuf_addf(&gitdir, "gitdir %s\n", get_git_dir()); - sendline(data, &gitdir); - strbuf_release(&gitdir); + } else if (!prefixcmp(capname, "export-marks ")) { + struct strbuf arg = STRBUF_INIT; + strbuf_addstr(&arg, "--export-marks="); + strbuf_addstr(&arg, capname + strlen("export-marks ")); + data->export_marks = strbuf_detach(&arg, NULL); + } else if (!prefixcmp(capname, "import-marks")) { + struct strbuf arg = STRBUF_INIT; + strbuf_addstr(&arg, "--import-marks="); + strbuf_addstr(&arg, capname + strlen("import-marks ")); + data->import_marks = strbuf_detach(&arg, NULL); } else if (mandatory) { die("Unknown mandatory capability %s. This remote " "helper probably needs newer version of Git.\n", @@ -204,6 +221,7 @@ static int disconnect_helper(struct transport *transport) { struct helper_data *data = transport->data; struct strbuf buf = STRBUF_INIT; + int res = 0; if (data->helper) { if (debug) @@ -215,13 +233,13 @@ static int disconnect_helper(struct transport *transport) close(data->helper->in); close(data->helper->out); fclose(data->out); - finish_command(data->helper); + res = finish_command(data->helper); free((char *)data->helper->argv[0]); free(data->helper->argv); free(data->helper); data->helper = NULL; } - return 0; + return res; } static const char *unsupported_options[] = { @@ -299,12 +317,13 @@ static void standard_options(struct transport *t) static int release_helper(struct transport *transport) { + int res = 0; struct helper_data *data = transport->data; free_refspec(data->refspec_nr, data->refspecs); data->refspecs = NULL; - disconnect_helper(transport); + res = disconnect_helper(transport); free(transport->data); - return 0; + return res; } static int fetch_with_fetch(struct transport *transport, @@ -362,10 +381,9 @@ static int get_importer(struct transport *transport, struct child_process *fasti static int get_exporter(struct transport *transport, struct child_process *fastexport, - const char *export_marks, - const char *import_marks, struct string_list *revlist_args) { + struct helper_data *data = transport->data; struct child_process *helper = get_helper(transport); int argc = 0, i; memset(fastexport, 0, sizeof(*fastexport)); @@ -373,12 +391,13 @@ static int get_exporter(struct transport *transport, /* we need to duplicate helper->in because we want to use it after * fastexport is done with it. */ fastexport->out = dup(helper->in); - fastexport->argv = xcalloc(4 + revlist_args->nr, sizeof(*fastexport->argv)); + fastexport->argv = xcalloc(5 + revlist_args->nr, sizeof(*fastexport->argv)); fastexport->argv[argc++] = "fast-export"; - if (export_marks) - fastexport->argv[argc++] = export_marks; - if (import_marks) - fastexport->argv[argc++] = import_marks; + fastexport->argv[argc++] = "--use-done-feature"; + if (data->export_marks) + fastexport->argv[argc++] = data->export_marks; + if (data->import_marks) + fastexport->argv[argc++] = data->import_marks; for (i = 0; i < revlist_args->nr; i++) fastexport->argv[argc++] = revlist_args->items[i].string; @@ -410,8 +429,11 @@ static int fetch_with_import(struct transport *transport, sendline(data, &buf); strbuf_reset(&buf); } - disconnect_helper(transport); - finish_command(&fastimport); + + write_constant(data->helper->in, "\n"); + + if (finish_command(&fastimport)) + die("Error while running fast-import"); free(fastimport.argv); fastimport.argv = NULL; @@ -554,6 +576,88 @@ static int fetch(struct transport *transport, return -1; } +static void push_update_ref_status(struct strbuf *buf, + struct ref **ref, + struct ref *remote_refs) +{ + char *refname, *msg; + int status; + + if (!prefixcmp(buf->buf, "ok ")) { + status = REF_STATUS_OK; + refname = buf->buf + 3; + } else if (!prefixcmp(buf->buf, "error ")) { + status = REF_STATUS_REMOTE_REJECT; + refname = buf->buf + 6; + } else + die("expected ok/error, helper said '%s'\n", buf->buf); + + msg = strchr(refname, ' '); + if (msg) { + struct strbuf msg_buf = STRBUF_INIT; + const char *end; + + *msg++ = '\0'; + if (!unquote_c_style(&msg_buf, msg, &end)) + msg = strbuf_detach(&msg_buf, NULL); + else + msg = xstrdup(msg); + strbuf_release(&msg_buf); + + if (!strcmp(msg, "no match")) { + status = REF_STATUS_NONE; + free(msg); + msg = NULL; + } + else if (!strcmp(msg, "up to date")) { + status = REF_STATUS_UPTODATE; + free(msg); + msg = NULL; + } + else if (!strcmp(msg, "non-fast forward")) { + status = REF_STATUS_REJECT_NONFASTFORWARD; + free(msg); + msg = NULL; + } + } + + if (*ref) + *ref = find_ref_by_name(*ref, refname); + if (!*ref) + *ref = find_ref_by_name(remote_refs, refname); + if (!*ref) { + warning("helper reported unexpected status of %s", refname); + return; + } + + if ((*ref)->status != REF_STATUS_NONE) { + /* + * Earlier, the ref was marked not to be pushed, so ignore the ref + * status reported by the remote helper if the latter is 'no match'. + */ + if (status == REF_STATUS_NONE) + return; + } + + (*ref)->status = status; + (*ref)->remote_status = msg; +} + +static void push_update_refs_status(struct helper_data *data, + struct ref *remote_refs) +{ + struct strbuf buf = STRBUF_INIT; + struct ref *ref = remote_refs; + for (;;) { + recvline(data, &buf); + if (!buf.len) + break; + + push_update_ref_status(&buf, &ref, remote_refs); + } + strbuf_release(&buf); +} + static int push_refs_with_push(struct transport *transport, struct ref *remote_refs, int flags) { @@ -608,76 +712,9 @@ static int push_refs_with_push(struct transport *transport, strbuf_addch(&buf, '\n'); sendline(data, &buf); - - ref = remote_refs; - while (1) { - char *refname, *msg; - int status; - - recvline(data, &buf); - if (!buf.len) - break; - - if (!prefixcmp(buf.buf, "ok ")) { - status = REF_STATUS_OK; - refname = buf.buf + 3; - } else if (!prefixcmp(buf.buf, "error ")) { - status = REF_STATUS_REMOTE_REJECT; - refname = buf.buf + 6; - } else - die("expected ok/error, helper said '%s'\n", buf.buf); - - msg = strchr(refname, ' '); - if (msg) { - struct strbuf msg_buf = STRBUF_INIT; - const char *end; - - *msg++ = '\0'; - if (!unquote_c_style(&msg_buf, msg, &end)) - msg = strbuf_detach(&msg_buf, NULL); - else - msg = xstrdup(msg); - strbuf_release(&msg_buf); - - if (!strcmp(msg, "no match")) { - status = REF_STATUS_NONE; - free(msg); - msg = NULL; - } - else if (!strcmp(msg, "up to date")) { - status = REF_STATUS_UPTODATE; - free(msg); - msg = NULL; - } - else if (!strcmp(msg, "non-fast forward")) { - status = REF_STATUS_REJECT_NONFASTFORWARD; - free(msg); - msg = NULL; - } - } - - if (ref) - ref = find_ref_by_name(ref, refname); - if (!ref) - ref = find_ref_by_name(remote_refs, refname); - if (!ref) { - warning("helper reported unexpected status of %s", refname); - continue; - } - - if (ref->status != REF_STATUS_NONE) { - /* - * Earlier, the ref was marked not to be pushed, so ignore the ref - * status reported by the remote helper if the latter is 'no match'. - */ - if (status == REF_STATUS_NONE) - continue; - } - - ref->status = status; - ref->remote_status = msg; - } strbuf_release(&buf); + + push_update_refs_status(data, remote_refs); return 0; } @@ -687,7 +724,6 @@ static int push_refs_with_export(struct transport *transport, struct ref *ref; struct child_process *helper, exporter; struct helper_data *data = transport->data; - char *export_marks = NULL, *import_marks = NULL; struct string_list revlist_args = STRING_LIST_INIT_NODUP; struct strbuf buf = STRBUF_INIT; @@ -695,26 +731,6 @@ static int push_refs_with_export(struct transport *transport, write_constant(helper->in, "export\n"); - recvline(data, &buf); - if (debug) - fprintf(stderr, "Debug: Got export_marks '%s'\n", buf.buf); - if (buf.len) { - struct strbuf arg = STRBUF_INIT; - strbuf_addstr(&arg, "--export-marks="); - strbuf_addbuf(&arg, &buf); - export_marks = strbuf_detach(&arg, NULL); - } - - recvline(data, &buf); - if (debug) - fprintf(stderr, "Debug: Got import_marks '%s'\n", buf.buf); - if (buf.len) { - struct strbuf arg = STRBUF_INIT; - strbuf_addstr(&arg, "--import-marks="); - strbuf_addbuf(&arg, &buf); - import_marks = strbuf_detach(&arg, NULL); - } - strbuf_reset(&buf); for (ref = remote_refs; ref; ref = ref->next) { @@ -728,18 +744,23 @@ static int push_refs_with_export(struct transport *transport, strbuf_addf(&buf, "^%s", private); string_list_append(&revlist_args, strbuf_detach(&buf, NULL)); } + free(private); + + if (ref->deletion) { + die("remote-helpers do not support ref deletion"); + } - string_list_append(&revlist_args, ref->name); + if (ref->peer_ref) + string_list_append(&revlist_args, ref->peer_ref->name); } - if (get_exporter(transport, &exporter, - export_marks, import_marks, &revlist_args)) + if (get_exporter(transport, &exporter, &revlist_args)) die("Couldn't run fast-export"); - data->no_disconnect_req = 1; - finish_command(&exporter); - disconnect_helper(transport); + if (finish_command(&exporter)) + die("Error while running fast-export"); + push_update_refs_status(data, remote_refs); return 0; } |