git-ssh-upload
git-status
git-stripspace
+git-symbolic-ref
git-tag
git-tar-tree
git-unpack-file
SYNOPSIS
--------
-'git clone' [-l] [-u <upload-pack>] [-q] <repository> <directory>
+'git clone' [-l [-s]] [-q] [-n] [-u <upload-pack>] <repository> <directory>
DESCRIPTION
-----------
OPTIONS
-------
+--local::
-l::
When the repository to clone from is on a local machine,
this flag bypasses normal "git aware" transport
The files under .git/objects/ directory are hardlinked
to save space when possible.
+--shared::
+-s::
+ When the repository to clone is on the local machine,
+ instead of using hard links automatically setup
+ .git/objects/info/alternatives to share the objects
+ with the source repository
+
+--quiet::
-q::
Operate quietly. This flag is passed to "rsync" and
"git-clone-pack" commands when given.
+-n::
+ No checkout of HEAD is performed after the clone is complete.
+
+--upload-pack <upload-pack>::
-u <upload-pack>::
When given, and the repository to clone from is handled
by 'git-clone-pack', '--exec=<upload-pack>' is passed to
(-[c|d|o|i|s|u|k|m])\*
[-x <pattern>|--exclude=<pattern>]
[-X <file>|--exclude-from=<file>]
- [--exclude-per-directory=<file>]
+ [--exclude-per-directory=<file>] [--] [<file>]\*
DESCRIPTION
-----------
K to be killed
? other
+--::
+ Do not interpret any more arguments as options.
+
+<file>::
+ Files to show. If no files are given all files which match the other
+ specified criteria are shown.
+
Output
------
show files just outputs the filename unless '--stage' is specified in
# DEFINES += -DUSE_STDEV
-GIT_VERSION = 0.99.7.GIT
+GIT_VERSION = 0.99.8.GIT
CFLAGS = -g -O2 -Wall
ALL_CFLAGS = $(CFLAGS) $(PLATFORM_DEFINES) $(DEFINES)
# ... and all the rest
PROGRAMS = \
- git-apply$X git-cat-file$X git-checkout-index$X \
- git-clone-pack$X git-commit-tree$X git-convert-objects$X \
- git-diff-files$X git-diff-index$X git-diff-stages$X \
- git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
- git-hash-object$X git-init-db$X git-local-fetch$X \
- git-ls-files$X git-ls-tree$X git-merge-base$X \
- git-merge-index$X git-mktag$X git-pack-objects$X \
- git-patch-id$X git-peek-remote$X git-prune-packed$X \
- git-read-tree$X git-receive-pack$X git-rev-list$X \
- git-rev-parse$X git-send-pack$X git-show-branch$X \
- git-show-index$X git-ssh-fetch$X git-ssh-upload$X \
- git-tar-tree$X git-unpack-file$X git-unpack-objects$X \
- git-update-index$X git-update-server-info$X \
- git-upload-pack$X git-verify-pack$X git-write-tree$X \
- git-update-ref$X $(SIMPLE_PROGRAMS)
+ git-apply$X git-cat-file$X \
+ git-checkout-index$X git-clone-pack$X git-commit-tree$X \
+ git-convert-objects$X git-diff-files$X \
+ git-diff-index$X git-diff-stages$X \
+ git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
+ git-hash-object$X git-init-db$X \
+ git-local-fetch$X git-ls-files$X git-ls-tree$X git-merge-base$X \
+ git-merge-index$X git-mktag$X git-pack-objects$X git-patch-id$X \
+ git-peek-remote$X git-prune-packed$X git-read-tree$X \
+ git-receive-pack$X git-rev-list$X git-rev-parse$X \
+ git-send-pack$X git-show-branch$X \
+ git-show-index$X git-ssh-fetch$X \
+ git-ssh-upload$X git-tar-tree$X git-unpack-file$X \
+ git-unpack-objects$X git-update-index$X git-update-server-info$X \
+ git-upload-pack$X git-verify-pack$X git-write-tree$X \
+ git-update-ref$X git-symbolic-ref$X \
+ $(SIMPLE_PROGRAMS)
# Backward compatibility -- to be removed after 1.0
PROGRAMS += git-ssh-pull$X git-ssh-push$X
+GIT_LIST_TWEAK =
+
PYMODULES = \
gitMergeCommon.py
ifdef WITH_SEND_EMAIL
SCRIPT_PERL += git-send-email.perl
+else
+ GIT_LIST_TWEAK += -e '/^send-email$$/d'
endif
LIB_FILE=libgit.a
ifneq (,$(findstring arm,$(shell uname -m)))
ARM_SHA1 = YesPlease
endif
+ifeq ($(shell uname -s),OpenBSD)
+ NEEDS_LIBICONV = YesPlease
+ PLATFORM_DEFINES += -I/usr/local/include -L/usr/local/lib
+endif
ifndef NO_CURL
ifdef CURLDIR
ifndef NO_OPENSSL
LIB_OBJS += epoch.o
OPENSSL_LIBSSL = -lssl
+ ifdef OPENSSLDIR
+ # Again this may be problematic -- gcc does not always want -R.
+ CFLAGS += -I$(OPENSSLDIR)/include
+ OPENSSL_LINK = -L$(OPENSSLDIR)/lib -R$(OPENSSLDIR)/lib
+ else
+ OPENSSL_LINK =
+ endif
else
DEFINES += '-DNO_OPENSSL'
MOZILLA_SHA1 = 1
OPENSSL_LIBSSL =
endif
ifdef NEEDS_SSL_WITH_CRYPTO
- LIB_4_CRYPTO = -lcrypto -lssl
+ LIB_4_CRYPTO = $(OPENSSL_LINK) -lcrypto -lssl
else
- LIB_4_CRYPTO = -lcrypto
+ LIB_4_CRYPTO = $(OPENSSL_LINK) -lcrypto
endif
ifdef NEEDS_LIBICONV
- LIB_4_ICONV = -liconv
+ ifdef ICONVDIR
+ # Again this may be problematic -- gcc does not always want -R.
+ CFLAGS += -I$(ICONVDIR)/include
+ ICONV_LINK = -L$(ICONVDIR)/lib -R$(ICONVDIR)/lib
+ else
+ ICONV_LINK =
+ endif
+ LIB_4_ICONV = $(ICONV_LINK) -liconv
else
LIB_4_ICONV =
endif
git: git.sh Makefile
rm -f $@+ $@
sed -e '1s|#!.*/sh|#!$(SHELL_PATH)|' \
+<<<<<<< Makefile
-e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
-e 's/@@X@@/$(X)/g' <$@.sh >$@+
+=======
+ -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
+ $(GIT_LIST_TWEAK) <$@.sh >$@+
+>>>>>>> .merge_file_3QHyD4
chmod +x $@+
mv $@+ $@
return offset;
}
+static inline int metadata_changes(struct patch *patch)
+{
+ return patch->is_rename > 0 ||
+ patch->is_copy > 0 ||
+ patch->is_new > 0 ||
+ patch->is_delete ||
+ (patch->old_mode && patch->new_mode &&
+ patch->old_mode != patch->new_mode);
+}
+
static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
{
int hdrsize, patchsize;
patchsize = parse_single_patch(buffer + offset + hdrsize, size - offset - hdrsize, patch);
+ if (!patchsize && !metadata_changes(patch))
+ die("patch with only garbage at line %d", linenr);
+
return offset + hdrsize + patchsize;
}
extern char *sha1_file_name(const unsigned char *sha1);
extern char *sha1_pack_name(const unsigned char *sha1);
extern char *sha1_pack_index_name(const unsigned char *sha1);
+extern const unsigned char null_sha1[20];
int git_mkstemp(char *path, size_t n, const char *template);
extern int get_sha1(const char *str, unsigned char *sha1);
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
+extern int read_ref(const char *filename, unsigned char *sha1);
+extern const char *resolve_ref(const char *path, unsigned char *sha1, int);
+extern int create_symref(const char *git_HEAD, const char *refs_heads_master);
+extern int validate_symref(const char *git_HEAD);
/* General helper functions */
extern void usage(const char *err) NORETURN;
+git-core (0.99.8-0) unstable; urgency=low
+
+ * GIT 0.99.8
+
+ -- Junio C Hamano <junkio@cox.net> Sun, 2 Oct 2005 12:54:26 -0700
+
git-core (0.99.7-0) unstable; urgency=low
* GIT 0.99.7
int main(int argc, const char **argv)
{
- static const unsigned char null_sha1[20] = { 0, };
const char **pathspec;
const char *prefix = setup_git_directory();
int entries, i;
#include "diffcore.h"
static const char *diff_opts = "-pu";
-static unsigned char null_sha1[20] = { 0, };
static int use_size_cache;
static void prep_temp_blob(struct diff_tempfile *temp,
void *blob,
unsigned long size,
- unsigned char *sha1,
+ const unsigned char *sha1,
int mode)
{
int fd;
static int fsck_head_link(void)
{
- int fd, count;
- char hex[40];
unsigned char sha1[20];
- static char path[PATH_MAX], link[PATH_MAX];
- const char *git_dir = get_git_dir();
-
- snprintf(path, sizeof(path), "%s/HEAD", git_dir);
- if (readlink(path, link, sizeof(link)) < 0)
- return error("HEAD is not a symlink");
- if (strncmp("refs/heads/", link, 11))
- return error("HEAD points to something strange (%s)", link);
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return error("HEAD: %s", strerror(errno));
- count = read(fd, hex, sizeof(hex));
- close(fd);
- if (count < 0)
- return error("HEAD: %s", strerror(errno));
- if (count < 40 || get_sha1_hex(hex, sha1))
+ const char *git_HEAD = strdup(git_path("HEAD"));
+ const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 1);
+ int pfxlen = strlen(git_HEAD) - 4; /* strip .../.git/ part */
+
+ if (!git_refs_heads_master)
+ return error("HEAD is not a symbolic ref");
+ if (strncmp(git_refs_heads_master + pfxlen, "refs/heads/", 11))
+ return error("HEAD points to something strange (%s)",
+ git_refs_heads_master + pfxlen);
+ if (!memcmp(null_sha1, sha1, 20))
return error("HEAD: not a valid git pointer");
return 0;
}
# skip commits already in repo
#
if (ptag($ps->{id})) {
- $opt_v && print "Skipping already imported: $ps->{id}\n";
+ $opt_v && print " * Skipping already imported: $ps->{id}\n";
next;
}
+ print " * Starting to work on $ps->{id}\n";
+
#
# create the branch if needed
#
# that branch.
#
foreach my $branch (keys %branches) {
+
+ # check that we actually know about the branch
+ next unless -e "$git_dir/refs/heads/$branch";
+
my $mergebase = `git-merge-base $branch $ps->{branch}`;
die "Cannot find merge base for $branch and $ps->{branch}" if $?;
chomp $mergebase;
# Verify HEAD. If we were bisecting before this, reset to the
# top-of-line master first!
#
- head=$(readlink $GIT_DIR/HEAD) || die "Bad HEAD - I need a symlink"
+ head=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD) ||
+ die "Bad HEAD - I need a symbolic ref"
case "$head" in
refs/heads/bisect*)
git checkout master || exit
refs/heads/*)
;;
*)
- die "Bad HEAD - strange symlink"
+ die "Bad HEAD - strange symbolic ref"
;;
esac
echo "$rev" > "$GIT_DIR/refs/heads/new-bisect"
git checkout new-bisect || exit
mv "$GIT_DIR/refs/heads/new-bisect" "$GIT_DIR/refs/heads/bisect" &&
- ln -sf refs/heads/bisect "$GIT_DIR/HEAD"
+ GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD refs/heads/bisect
git-show-branch "$rev"
}
delete_branch () {
option="$1" branch_name="$2"
- headref=$(readlink "$GIT_DIR/HEAD" | sed -e 's|^refs/heads/||')
+ headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD |
+ sed -e 's|^refs/heads/||')
case ",$headref," in
",$branch_name,")
die "Cannot delete the branch you are on." ;;
case "$#" in
0)
- headref=$(readlink "$GIT_DIR/HEAD" | sed -e 's|^refs/heads/||')
+ headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD |
+ sed -e 's|^refs/heads/||')
git-rev-parse --symbolic --all |
sed -ne 's|^refs/heads/||p' |
sort |
echo $new > "$GIT_DIR/refs/heads/$newbranch"
branch="$newbranch"
fi
- [ "$branch" ] && ln -sf "refs/heads/$branch" "$GIT_DIR/HEAD"
+ [ "$branch" ] &&
+ GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD "refs/heads/$branch"
rm -f "$GIT_DIR/MERGE_HEAD"
else
exit 1
fi >>.editmsg
PARENTS="-p HEAD"
-if [ ! -r "$GIT_DIR/HEAD" ]; then
- if [ -z "$(git-ls-files)" ]; then
- echo Nothing to commit 1>&2
- exit 1
- fi
- PARENTS=""
- current=
-else
- current=$(git-rev-parse --verify HEAD)
+if GIT_DIR="$GIT_DIR" git-rev-parse --verify HEAD >/dev/null 2>&1
+then
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
fi
export GIT_AUTHOR_EMAIL
export GIT_AUTHOR_DATE
fi
+else
+ if [ -z "$(git-ls-files)" ]; then
+ echo Nothing to commit 1>&2
+ exit 1
+ fi
+ PARENTS=""
fi
git-status >>.editmsg
if [ "$?" != "0" -a ! -f $GIT_DIR/MERGE_HEAD ]
my $state = 0;
-my($patchset,$date,$author,$branch,$ancestor,$tag,$logmsg);
+my($patchset,$date,$author_name,$author_email,$branch,$ancestor,$tag,$logmsg);
my(@old,@new);
my $commit = sub {
my $pid;
}
exec("env",
- "GIT_AUTHOR_NAME=$author",
- "GIT_AUTHOR_EMAIL=$author",
+ "GIT_AUTHOR_NAME=$author_name",
+ "GIT_AUTHOR_EMAIL=$author_email",
"GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
- "GIT_COMMITTER_NAME=$author",
- "GIT_COMMITTER_EMAIL=$author",
+ "GIT_COMMITTER_NAME=$author_name",
+ "GIT_COMMITTER_EMAIL=$author_email",
"GIT_COMMITTER_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
"git-commit-tree", $tree,@par);
die "Cannot exec git-commit-tree: $!\n";
print $out "object $cid\n".
"type commit\n".
"tag $xtag\n".
- "tagger $author <$author>\n"
+ "tagger $author_name <$author_email>\n"
or die "Cannot create tag object $xtag: $!\n";
close($out)
or die "Cannot create tag object $xtag: $!\n";
$state=3;
} elsif($state == 3 and s/^Author:\s+//) {
s/\s+$//;
- $author = $_;
+ if (/^(.*?)\s+<(.*)>/) {
+ ($author_name, $author_email) = ($1, $2);
+ } else {
+ $author_name = $author_email = $_;
+ }
$state = 4;
} elsif($state == 4 and s/^Branch:\s+//) {
s/\s+$//;
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
+tags=
append=
force=
update_head_ok=
-f|--f|--fo|--for|--forc|--force)
force=t
;;
+ -t|--t|--ta|--tag|--tags)
+ tags=t
+ ;;
-u|--u|--up|--upd|--upda|--updat|--update|--update-|--update-h|\
--update-he|--update-hea|--update-head|--update-head-|\
--update-head-o|--update-head-ok)
;;
esac
-for ref in $(get_remote_refs_for_fetch "$@")
+# If --tags (and later --heads or --all) is specified, then we are
+# not talking about defaults stored in Pull: line of remotes or
+# branches file, and just fetch those and refspecs explicitly given.
+# Otherwise we do what we always did.
+
+reflist=$(get_remote_refs_for_fetch "$@")
+if test "$tags"
+then
+ taglist=$(git-ls-remote --tags "$remote" | awk '{ print "."$2":"$2 }')
+ if test "$#" -gt 1
+ then
+ # remote URL plus explicit refspecs; we need to merge them.
+ reflist="$reflist $taglist"
+ else
+ # No explicit refspecs; fetch tags only.
+ reflist=$taglist
+ fi
+fi
+
+for ref in $reflist
do
refs="$refs $ref"
sys.path.append('@@GIT_PYTHON_PATH@@')
from gitMergeCommon import *
-# The actual merge code
-# ---------------------
-
originalIndexFile = os.environ.get('GIT_INDEX_FILE',
os.environ.get('GIT_DIR', '.git') + '/index')
temporaryIndexFile = os.environ.get('GIT_DIR', '.git') + \
pass
if temporary:
newIndex = temporaryIndexFile
- os.environ
else:
newIndex = originalIndexFile
os.environ['GIT_INDEX_FILE'] = newIndex
+# This is a global variable which is used in a number of places but
+# only written to in the 'merge' function.
+
+# cacheOnly == True => Don't leave any non-stage 0 entries in the cache and
+# don't update the working directory.
+# False => Leave unmerged entries in the cache and update
+# the working directory.
+
+cacheOnly = False
+
+# The entry point to the merge code
+# ---------------------------------
+
def merge(h1, h2, branch1Name, branch2Name, graph, callDepth=0):
'''Merge the commits h1 and h2, return the resulting virtual
commit object and a flag indicating the cleaness of the merge.'''
def infoMsg(*args):
sys.stdout.write(' '*callDepth)
printList(args)
+
infoMsg('Merging:')
infoMsg(h1)
infoMsg(h2)
infoMsg(x)
sys.stdout.flush()
- Ms = ca[0]
+ mergedCA = ca[0]
for h in ca[1:]:
- [Ms, ignore] = merge(Ms, h,
- 'Temporary shared merge branch 1',
- 'Temporary shared merge branch 2',
- graph, callDepth+1)
- assert(isinstance(Ms, Commit))
+ [mergedCA, dummy] = merge(mergedCA, h,
+ 'Temporary shared merge branch 1',
+ 'Temporary shared merge branch 2',
+ graph, callDepth+1)
+ assert(isinstance(mergedCA, Commit))
+ global cacheOnly
if callDepth == 0:
setupIndex(False)
- cleanCache = False
+ cacheOnly = False
else:
setupIndex(True)
runProgram(['git-read-tree', h1.tree()])
- cleanCache = True
+ cacheOnly = True
- [shaRes, clean] = mergeTrees(h1.tree(), h2.tree(), Ms.tree(),
- branch1Name, branch2Name,
- cleanCache)
+ [shaRes, clean] = mergeTrees(h1.tree(), h2.tree(), mergedCA.tree(),
+ branch1Name, branch2Name)
- if clean or cleanCache:
+ if clean or cacheOnly:
res = Commit(None, [h1, h2], tree=shaRes)
graph.addNode(res)
else:
return [files, dirs]
+# Those two global variables are used in a number of places but only
+# written to in 'mergeTrees' and 'uniquePath'. They keep track of
+# every file and directory in the two branches that are about to be
+# merged.
+currentFileSet = None
+currentDirectorySet = None
+
+def mergeTrees(head, merge, common, branch1Name, branch2Name):
+ '''Merge the trees 'head' and 'merge' with the common ancestor
+ 'common'. The name of the head branch is 'branch1Name' and the name of
+ the merge branch is 'branch2Name'. Return a tuple (tree, cleanMerge)
+ where tree is the resulting tree and cleanMerge is True iff the
+ merge was clean.'''
+
+ assert(isSha(head) and isSha(merge) and isSha(common))
+
+ if common == merge:
+ print 'Already uptodate!'
+ return [head, True]
+
+ if cacheOnly:
+ updateArg = '-i'
+ else:
+ updateArg = '-u'
+
+ [out, code] = runProgram(['git-read-tree', updateArg, '-m',
+ common, head, merge], returnCode = True)
+ if code != 0:
+ die('git-read-tree:', out)
+
+ [tree, code] = runProgram('git-write-tree', returnCode=True)
+ tree = tree.rstrip()
+ if code != 0:
+ global currentFileSet, currentDirectorySet
+ [currentFileSet, currentDirectorySet] = getFilesAndDirs(head)
+ [filesM, dirsM] = getFilesAndDirs(merge)
+ currentFileSet.union_update(filesM)
+ currentDirectorySet.union_update(dirsM)
+
+ entries = unmergedCacheEntries()
+ renamesHead = getRenames(head, common, head, merge, entries)
+ renamesMerge = getRenames(merge, common, head, merge, entries)
+
+ cleanMerge = processRenames(renamesHead, renamesMerge,
+ branch1Name, branch2Name)
+ for entry in entries:
+ if entry.processed:
+ continue
+ if not processEntry(entry, branch1Name, branch2Name):
+ cleanMerge = False
+
+ if cleanMerge or cacheOnly:
+ tree = runProgram('git-write-tree').rstrip()
+ else:
+ tree = None
+ else:
+ cleanMerge = True
+
+ return [tree, cleanMerge]
+
+# Low level file merging, update and removal
+# ------------------------------------------
+
+def mergeFile(oPath, oSha, oMode, aPath, aSha, aMode, bPath, bSha, bMode,
+ branch1Name, branch2Name):
+
+ merge = False
+ clean = True
+
+ if stat.S_IFMT(aMode) != stat.S_IFMT(bMode):
+ clean = False
+ if stat.S_ISREG(aMode):
+ mode = aMode
+ sha = aSha
+ else:
+ mode = bMode
+ sha = bSha
+ else:
+ if aSha != oSha and bSha != oSha:
+ merge = True
+
+ if aMode == oMode:
+ mode = bMode
+ else:
+ mode = aMode
+
+ if aSha == oSha:
+ sha = bSha
+ elif bSha == oSha:
+ sha = aSha
+ elif stat.S_ISREG(aMode):
+ assert(stat.S_ISREG(bMode))
+
+ orig = runProgram(['git-unpack-file', oSha]).rstrip()
+ src1 = runProgram(['git-unpack-file', aSha]).rstrip()
+ src2 = runProgram(['git-unpack-file', bSha]).rstrip()
+ [out, code] = runProgram(['merge',
+ '-L', branch1Name + '/' + aPath,
+ '-L', 'orig/' + oPath,
+ '-L', branch2Name + '/' + bPath,
+ src1, orig, src2], returnCode=True)
+
+ sha = runProgram(['git-hash-object', '-t', 'blob', '-w',
+ src1]).rstrip()
+
+ os.unlink(orig)
+ os.unlink(src1)
+ os.unlink(src2)
+
+ clean = (code == 0)
+ else:
+ assert(stat.S_ISLNK(aMode) and stat.S_ISLNK(bMode))
+ sha = aSha
+
+ if aSha != bSha:
+ clean = False
+
+ return [sha, mode, clean, merge]
+
+def updateFile(clean, sha, mode, path):
+ updateCache = cacheOnly or clean
+ updateWd = not cacheOnly
+
+ return updateFileExt(sha, mode, path, updateCache, updateWd)
+
+def updateFileExt(sha, mode, path, updateCache, updateWd):
+ if cacheOnly:
+ updateWd = False
+
+ if updateWd:
+ pathComponents = path.split('/')
+ for x in xrange(1, len(pathComponents)):
+ p = '/'.join(pathComponents[0:x])
+
+ try:
+ createDir = not stat.S_ISDIR(os.lstat(p).st_mode)
+ except:
+ createDir = True
+
+ if createDir:
+ try:
+ os.mkdir(p)
+ except OSError, e:
+ die("Couldn't create directory", p, e.strerror)
+
+ prog = ['git-cat-file', 'blob', sha]
+ if stat.S_ISREG(mode):
+ try:
+ os.unlink(path)
+ except OSError:
+ pass
+ if mode & 0100:
+ mode = 0777
+ else:
+ mode = 0666
+ fd = os.open(path, os.O_WRONLY | os.O_TRUNC | os.O_CREAT, mode)
+ proc = subprocess.Popen(prog, stdout=fd)
+ proc.wait()
+ os.close(fd)
+ elif stat.S_ISLNK(mode):
+ linkTarget = runProgram(prog)
+ os.symlink(linkTarget, path)
+ else:
+ assert(False)
+
+ if updateWd and updateCache:
+ runProgram(['git-update-index', '--add', '--', path])
+ elif updateCache:
+ runProgram(['git-update-index', '--add', '--cacheinfo',
+ '0%o' % mode, sha, path])
+
+def removeFile(clean, path):
+ updateCache = cacheOnly or clean
+ updateWd = not cacheOnly
+
+ if updateCache:
+ runProgram(['git-update-index', '--force-remove', '--', path])
+
+ if updateWd:
+ try:
+ os.unlink(path)
+ except OSError, e:
+ if e.errno != errno.ENOENT and e.errno != errno.EISDIR:
+ raise
+
+def uniquePath(path, branch):
+ def fileExists(path):
+ try:
+ os.lstat(path)
+ return True
+ except OSError, e:
+ if e.errno == errno.ENOENT:
+ return False
+ else:
+ raise
+
+ newPath = path + '_' + branch
+ suffix = 0
+ while newPath in currentFileSet or \
+ newPath in currentDirectorySet or \
+ fileExists(newPath):
+ suffix += 1
+ newPath = path + '_' + branch + '_' + str(suffix)
+ currentFileSet.add(newPath)
+ return newPath
+
+# Cache entry management
+# ----------------------
+
class CacheEntry:
def __init__(self, path):
class Stage:
def __init__(self):
self.sha1 = None
self.mode = None
+
+ # Used for debugging only
+ def __str__(self):
+ if self.mode != None:
+ m = '0%o' % self.mode
+ else:
+ m = 'None'
+
+ if self.sha1:
+ sha1 = self.sha1
+ else:
+ sha1 = 'None'
+ return 'sha1: ' + sha1 + ' mode: ' + m
- self.stages = [Stage(), Stage(), Stage()]
+ self.stages = [Stage(), Stage(), Stage(), Stage()]
self.path = path
+ self.processed = False
+
+ def __str__(self):
+ return 'path: ' + self.path + ' stages: ' + repr([str(x) for x in self.stages])
+class CacheEntryContainer:
+ def __init__(self):
+ self.entries = {}
+
+ def add(self, entry):
+ self.entries[entry.path] = entry
+
+ def get(self, path):
+ return self.entries.get(path)
+
+ def __iter__(self):
+ return self.entries.itervalues()
+
unmergedRE = re.compile(r'^([0-7]+) ([0-9a-f]{40}) ([1-3])\t(.*)$', re.S)
def unmergedCacheEntries():
'''Create a dictionary mapping file names to CacheEntry
lines = runProgram(['git-ls-files', '-z', '--unmerged']).split('\0')
lines.pop()
- res = {}
+ res = CacheEntryContainer()
for l in lines:
m = unmergedRE.match(l)
if m:
mode = int(m.group(1), 8)
sha1 = m.group(2)
- stage = int(m.group(3)) - 1
+ stage = int(m.group(3))
path = m.group(4)
- if res.has_key(path):
- e = res[path]
- else:
+ e = res.get(path)
+ if not e:
e = CacheEntry(path)
- res[path] = e
-
+ res.add(e)
+
e.stages[stage].mode = mode
e.stages[stage].sha1 = sha1
else:
- die('Error: Merge program failed: Unexpected output from', \
+ die('Error: Merge program failed: Unexpected output from',
'git-ls-files:', l)
return res
-def mergeTrees(head, merge, common, branch1Name, branch2Name,
- cleanCache):
- '''Merge the trees 'head' and 'merge' with the common ancestor
- 'common'. The name of the head branch is 'branch1Name' and the name of
- the merge branch is 'branch2Name'. Return a tuple (tree, cleanMerge)
- where tree is the resulting tree and cleanMerge is True iff the
- merge was clean.'''
+lsTreeRE = re.compile(r'^([0-7]+) (\S+) ([0-9a-f]{40})\t(.*)\n$', re.S)
+def getCacheEntry(path, origTree, aTree, bTree):
+ '''Returns a CacheEntry object which doesn't have to correspond to
+ a real cache entry in Git's index.'''
- assert(isSha(head) and isSha(merge) and isSha(common))
+ def parse(out):
+ if out == '':
+ return [None, None]
+ else:
+ m = lsTreeRE.match(out)
+ if not m:
+ die('Unexpected output from git-ls-tree:', out)
+ elif m.group(2) == 'blob':
+ return [m.group(3), int(m.group(1), 8)]
+ else:
+ return [None, None]
- if common == merge:
- print 'Already uptodate!'
- return [head, True]
+ res = CacheEntry(path)
- if cleanCache:
- updateArg = '-i'
- else:
- updateArg = '-u'
+ [oSha, oMode] = parse(runProgram(['git-ls-tree', origTree, '--', path]))
+ [aSha, aMode] = parse(runProgram(['git-ls-tree', aTree, '--', path]))
+ [bSha, bMode] = parse(runProgram(['git-ls-tree', bTree, '--', path]))
- [out, code] = runProgram(['git-read-tree', updateArg, '-m', common, head, merge], returnCode = True)
- if code != 0:
- die('git-read-tree:', out)
+ res.stages[1].sha1 = oSha
+ res.stages[1].mode = oMode
+ res.stages[2].sha1 = aSha
+ res.stages[2].mode = aMode
+ res.stages[3].sha1 = bSha
+ res.stages[3].mode = bMode
- cleanMerge = True
+ return res
- [tree, code] = runProgram('git-write-tree', returnCode=True)
- tree = tree.rstrip()
- if code != 0:
- [files, dirs] = getFilesAndDirs(head)
- [filesM, dirsM] = getFilesAndDirs(merge)
- files.union_update(filesM)
- dirs.union_update(dirsM)
-
- cleanMerge = True
- entries = unmergedCacheEntries()
- for name in entries:
- if not processEntry(entries[name], branch1Name, branch2Name,
- files, dirs, cleanCache):
- cleanMerge = False
-
- if cleanMerge or cleanCache:
- tree = runProgram('git-write-tree').rstrip()
+# Rename detection and handling
+# -----------------------------
+
+class RenameEntry:
+ def __init__(self,
+ src, srcSha, srcMode, srcCacheEntry,
+ dst, dstSha, dstMode, dstCacheEntry,
+ score):
+ self.srcName = src
+ self.srcSha = srcSha
+ self.srcMode = srcMode
+ self.srcCacheEntry = srcCacheEntry
+ self.dstName = dst
+ self.dstSha = dstSha
+ self.dstMode = dstMode
+ self.dstCacheEntry = dstCacheEntry
+ self.score = score
+
+ self.processed = False
+
+class RenameEntryContainer:
+ def __init__(self):
+ self.entriesSrc = {}
+ self.entriesDst = {}
+
+ def add(self, entry):
+ self.entriesSrc[entry.srcName] = entry
+ self.entriesDst[entry.dstName] = entry
+
+ def getSrc(self, path):
+ return self.entriesSrc.get(path)
+
+ def getDst(self, path):
+ return self.entriesDst.get(path)
+
+ def __iter__(self):
+ return self.entriesSrc.itervalues()
+
+parseDiffRenamesRE = re.compile('^:([0-7]+) ([0-7]+) ([0-9a-f]{40}) ([0-9a-f]{40}) R([0-9]*)$')
+def getRenames(tree, oTree, aTree, bTree, cacheEntries):
+ '''Get information of all renames which occured between 'oTree' and
+ 'tree'. We need the three trees in the merge ('oTree', 'aTree' and
+ 'bTree') to be able to associate the correct cache entries with
+ the rename information. 'tree' is always equal to either aTree or bTree.'''
+
+ assert(tree == aTree or tree == bTree)
+ inp = runProgram(['git-diff-tree', '-M', '--diff-filter=R', '-r',
+ '-z', oTree, tree])
+
+ ret = RenameEntryContainer()
+ try:
+ recs = inp.split("\0")
+ recs.pop() # remove last entry (which is '')
+ it = recs.__iter__()
+ while True:
+ rec = it.next()
+ m = parseDiffRenamesRE.match(rec)
+
+ if not m:
+ die('Unexpected output from git-diff-tree:', rec)
+
+ srcMode = int(m.group(1), 8)
+ dstMode = int(m.group(2), 8)
+ srcSha = m.group(3)
+ dstSha = m.group(4)
+ score = m.group(5)
+ src = it.next()
+ dst = it.next()
+
+ srcCacheEntry = cacheEntries.get(src)
+ if not srcCacheEntry:
+ srcCacheEntry = getCacheEntry(src, oTree, aTree, bTree)
+ cacheEntries.add(srcCacheEntry)
+
+ dstCacheEntry = cacheEntries.get(dst)
+ if not dstCacheEntry:
+ dstCacheEntry = getCacheEntry(dst, oTree, aTree, bTree)
+ cacheEntries.add(dstCacheEntry)
+
+ ret.add(RenameEntry(src, srcSha, srcMode, srcCacheEntry,
+ dst, dstSha, dstMode, dstCacheEntry,
+ score))
+ except StopIteration:
+ pass
+ return ret
+
+def fmtRename(src, dst):
+ srcPath = src.split('/')
+ dstPath = dst.split('/')
+ path = []
+ endIndex = min(len(srcPath), len(dstPath)) - 1
+ for x in range(0, endIndex):
+ if srcPath[x] == dstPath[x]:
+ path.append(srcPath[x])
else:
- tree = None
+ endIndex = x
+ break
+
+ if len(path) > 0:
+ return '/'.join(path) + \
+ '/{' + '/'.join(srcPath[endIndex:]) + ' => ' + \
+ '/'.join(dstPath[endIndex:]) + '}'
else:
- cleanMerge = True
+ return src + ' => ' + dst
- return [tree, cleanMerge]
+def processRenames(renamesA, renamesB, branchNameA, branchNameB):
+ srcNames = Set()
+ for x in renamesA:
+ srcNames.add(x.srcName)
+ for x in renamesB:
+ srcNames.add(x.srcName)
-def processEntry(entry, branch1Name, branch2Name, files, dirs, cleanCache):
- '''Merge one cache entry. 'files' is a Set with the files in both of
- the heads that we are going to merge. 'dirs' contains the
- corresponding data for directories. If 'cleanCache' is True no
- non-zero stages will be left in the cache for the path
- corresponding to the entry 'entry'.'''
+ cleanMerge = True
+ for path in srcNames:
+ if renamesA.getSrc(path):
+ renames1 = renamesA
+ renames2 = renamesB
+ branchName1 = branchNameA
+ branchName2 = branchNameB
+ else:
+ renames1 = renamesB
+ renames2 = renamesA
+ branchName1 = branchNameB
+ branchName2 = branchNameA
+
+ ren1 = renames1.getSrc(path)
+ ren2 = renames2.getSrc(path)
+
+ ren1.dstCacheEntry.processed = True
+ ren1.srcCacheEntry.processed = True
+
+ if ren1.processed:
+ continue
+
+ ren1.processed = True
+ removeFile(True, ren1.srcName)
+ if ren2:
+ # Renamed in 1 and renamed in 2
+ assert(ren1.srcName == ren2.srcName)
+ ren2.dstCacheEntry.processed = True
+ ren2.processed = True
+
+ if ren1.dstName != ren2.dstName:
+ print 'CONFLICT (rename/rename): Rename', \
+ fmtRename(path, ren1.dstName), 'in branch', branchName1, \
+ 'rename', fmtRename(path, ren2.dstName), 'in', branchName2
+ cleanMerge = False
-# cleanCache == True => Don't leave any non-stage 0 entries in the cache and
-# don't update the working directory
-# False => Leave unmerged entries and update the working directory
+ if ren1.dstName in currentDirectorySet:
+ dstName1 = uniquePath(ren1.dstName, branchName1)
+ print ren1.dstName, 'is a directory in', branchName2, \
+ 'adding as', dstName1, 'instead.'
+ removeFile(False, ren1.dstName)
+ else:
+ dstName1 = ren1.dstName
-# clean == True => non-conflict case
-# False => conflict case
+ if ren2.dstName in currentDirectorySet:
+ dstName2 = uniquePath(ren2.dstName, branchName2)
+ print ren2.dstName, 'is a directory in', branchName1, \
+ 'adding as', dstName2, 'instead.'
+ removeFile(False, ren2.dstName)
+ else:
+ dstName2 = ren1.dstName
-# If cleanCache == False then the cache shouldn't be updated if clean == False
+ updateFile(False, ren1.dstSha, ren1.dstMode, dstName1)
+ updateFile(False, ren2.dstSha, ren2.dstMode, dstName2)
+ else:
+ print 'Renaming', fmtRename(path, ren1.dstName)
+ [resSha, resMode, clean, merge] = \
+ mergeFile(ren1.srcName, ren1.srcSha, ren1.srcMode,
+ ren1.dstName, ren1.dstSha, ren1.dstMode,
+ ren2.dstName, ren2.dstSha, ren2.dstMode,
+ branchName1, branchName2)
+
+ if merge:
+ print 'Auto-merging', ren1.dstName
+
+ if not clean:
+ print 'CONFLICT (content): merge conflict in', ren1.dstName
+ cleanMerge = False
+
+ if not cacheOnly:
+ updateFileExt(ren1.dstSha, ren1.dstMode, ren1.dstName,
+ updateCache=True, updateWd=False)
+ updateFile(clean, resSha, resMode, ren1.dstName)
+ else:
+ # Renamed in 1, maybe changed in 2
+ if renamesA == renames1:
+ stage = 3
+ else:
+ stage = 2
+
+ srcShaOtherBranch = ren1.srcCacheEntry.stages[stage].sha1
+ srcModeOtherBranch = ren1.srcCacheEntry.stages[stage].mode
+
+ dstShaOtherBranch = ren1.dstCacheEntry.stages[stage].sha1
+ dstModeOtherBranch = ren1.dstCacheEntry.stages[stage].mode
+
+ tryMerge = False
+
+ if ren1.dstName in currentDirectorySet:
+ newPath = uniquePath(ren1.dstName, branchName1)
+ print 'CONFLICT (rename/directory): Rename', \
+ fmtRename(ren1.srcName, ren1.dstName), 'in', branchName1,\
+ 'directory', ren1.dstName, 'added in', branchName2
+ print 'Renaming', ren1.srcName, 'to', newPath, 'instead'
+ cleanMerge = False
+ removeFile(False, ren1.dstName)
+ updateFile(False, ren1.dstSha, ren1.dstMode, newPath)
+ elif srcShaOtherBranch == None:
+ print 'CONFLICT (rename/delete): Rename', \
+ fmtRename(ren1.srcName, ren1.dstName), 'in', \
+ branchName1, 'and deleted in', branchName2
+ cleanMerge = False
+ updateFile(False, ren1.dstSha, ren1.dstMode, ren1.dstName)
+ elif dstShaOtherBranch:
+ newPath = uniquePath(ren1.dstName, branchName2)
+ print 'CONFLICT (rename/add): Rename', \
+ fmtRename(ren1.srcName, ren1.dstName), 'in', \
+ branchName1 + '.', ren1.dstName, 'added in', branchName2
+ print 'Adding as', newPath, 'instead'
+ updateFile(False, dstShaOtherBranch, dstModeOtherBranch, newPath)
+ cleanMerge = False
+ tryMerge = True
+ elif renames2.getDst(ren1.dstName):
+ dst2 = renames2.getDst(ren1.dstName)
+ newPath1 = uniquePath(ren1.dstName, branchName1)
+ newPath2 = uniquePath(dst2.dstName, branchName2)
+ print 'CONFLICT (rename/rename): Rename', \
+ fmtRename(ren1.srcName, ren1.dstName), 'in', \
+ branchName1+'. Rename', \
+ fmtRename(dst2.srcName, dst2.dstName), 'in', branchName2
+ print 'Renaming', ren1.srcName, 'to', newPath1, 'and', \
+ dst2.srcName, 'to', newPath2, 'instead'
+ removeFile(False, ren1.dstName)
+ updateFile(False, ren1.dstSha, ren1.dstMode, newPath1)
+ updateFile(False, dst2.dstSha, dst2.dstMode, newPath2)
+ dst2.processed = True
+ cleanMerge = False
+ else:
+ tryMerge = True
- def updateFile(clean, sha, mode, path, onlyWd=False):
- updateCache = not onlyWd and (cleanCache or (not cleanCache and clean))
- updateWd = onlyWd or (not cleanCache and clean)
+ if tryMerge:
+ print 'Renaming', fmtRename(ren1.srcName, ren1.dstName)
+ [resSha, resMode, clean, merge] = \
+ mergeFile(ren1.srcName, ren1.srcSha, ren1.srcMode,
+ ren1.dstName, ren1.dstSha, ren1.dstMode,
+ ren1.srcName, srcShaOtherBranch, srcModeOtherBranch,
+ branchName1, branchName2)
- if updateWd:
- prog = ['git-cat-file', 'blob', sha]
- if stat.S_ISREG(mode):
- try:
- os.unlink(path)
- except OSError:
- pass
- if mode & 0100:
- mode = 0777
- else:
- mode = 0666
- fd = os.open(path, os.O_WRONLY | os.O_TRUNC | os.O_CREAT, mode)
- proc = subprocess.Popen(prog, stdout=fd)
- proc.wait()
- os.close(fd)
- elif stat.S_ISLNK(mode):
- linkTarget = runProgram(prog)
- os.symlink(linkTarget, path)
- else:
- assert(False)
+ if merge:
+ print 'Auto-merging', ren1.dstName
- if updateWd and updateCache:
- runProgram(['git-update-index', '--add', '--', path])
- elif updateCache:
- runProgram(['git-update-index', '--add', '--cacheinfo',
- '0%o' % mode, sha, path])
+ if not clean:
+ print 'CONFLICT (rename/modify): Merge conflict in', ren1.dstName
+ cleanMerge = False
- def removeFile(clean, path):
- if cleanCache or (not cleanCache and clean):
- runProgram(['git-update-index', '--force-remove', '--', path])
+ if not cacheOnly:
+ updateFileExt(ren1.dstSha, ren1.dstMode, ren1.dstName,
+ updateCache=True, updateWd=False)
+ updateFile(clean, resSha, resMode, ren1.dstName)
- if not cleanCache and clean:
- try:
- os.unlink(path)
- except OSError, e:
- if e.errno != errno.ENOENT and e.errno != errno.EISDIR:
- raise
+ return cleanMerge
- def uniquePath(path, branch):
- newPath = path + '_' + branch
- suffix = 0
- while newPath in files or newPath in dirs:
- suffix += 1
- newPath = path + '_' + branch + '_' + str(suffix)
- files.add(newPath)
- return newPath
+# Per entry merge function
+# ------------------------
- debug('processing', entry.path, 'clean cache:', cleanCache)
+def processEntry(entry, branch1Name, branch2Name):
+ '''Merge one cache entry.'''
+
+ debug('processing', entry.path, 'clean cache:', cacheOnly)
cleanMerge = True
path = entry.path
- oSha = entry.stages[0].sha1
- oMode = entry.stages[0].mode
- aSha = entry.stages[1].sha1
- aMode = entry.stages[1].mode
- bSha = entry.stages[2].sha1
- bMode = entry.stages[2].mode
+ oSha = entry.stages[1].sha1
+ oMode = entry.stages[1].mode
+ aSha = entry.stages[2].sha1
+ aMode = entry.stages[2].mode
+ bSha = entry.stages[3].sha1
+ bMode = entry.stages[3].mode
assert(oSha == None or isSha(oSha))
assert(aSha == None or isSha(aSha))
(not aSha and bSha == oSha):
# Deleted in both or deleted in one and unchanged in the other
if aSha:
- print 'Removing ' + path
+ print 'Removing', path
removeFile(True, path)
else:
# Deleted in one and changed in the other
cleanMerge = False
if not aSha:
- print 'CONFLICT (del/mod): "' + path + '" deleted in', \
- branch1Name, 'and modified in', branch2Name, \
- '. Version', branch2Name, ' of "' + path + \
- '" left in tree'
+ print 'CONFLICT (delete/modify):', path, 'deleted in', \
+ branch1Name, 'and modified in', branch2Name + '.', \
+ 'Version', branch2Name, 'of', path, 'left in tree.'
mode = bMode
sha = bSha
else:
- print 'CONFLICT (mod/del): "' + path + '" deleted in', \
- branch2Name, 'and modified in', branch1Name + \
- '. Version', branch1Name, 'of "' + path + \
- '" left in tree'
+ print 'CONFLICT (modify/delete):', path, 'deleted in', \
+ branch2Name, 'and modified in', branch1Name + '.', \
+ 'Version', branch1Name, 'of', path, 'left in tree.'
mode = aMode
sha = aSha
updateFile(False, sha, mode, path)
-
+
elif (not oSha and aSha and not bSha) or \
(not oSha and not aSha and bSha):
#
otherBranch = branch2Name
mode = aMode
sha = aSha
- conf = 'file/dir'
+ conf = 'file/directory'
else:
addBranch = branch2Name
otherBranch = branch1Name
mode = bMode
sha = bSha
- conf = 'dir/file'
+ conf = 'directory/file'
- if path in dirs:
+ if path in currentDirectorySet:
cleanMerge = False
newPath = uniquePath(path, addBranch)
- print 'CONFLICT (' + conf + \
- '): There is a directory with name "' + path + '" in', \
- otherBranch + '. Adding "' + path + '" as "' + newPath + '"'
+ print 'CONFLICT (' + conf + '):', \
+ 'There is a directory with name', path, 'in', \
+ otherBranch + '. Adding', path, 'as', newPath
removeFile(False, path)
- path = newPath
+ updateFile(False, sha, mode, newPath)
else:
- print 'Adding "' + path + '"'
-
- updateFile(True, sha, mode, path)
+ print 'Adding', path
+ updateFile(True, sha, mode, path)
elif not oSha and aSha and bSha:
#
if aSha == bSha:
if aMode != bMode:
cleanMerge = False
- print 'CONFLICT: File "' + path + \
- '" added identically in both branches,', \
- 'but permissions conflict', '0%o' % aMode, '->', \
- '0%o' % bMode
+ print 'CONFLICT: File', path, \
+ 'added identically in both branches, but permissions', \
+ 'conflict', '0%o' % aMode, '->', '0%o' % bMode
print 'CONFLICT: adding with permission:', '0%o' % aMode
updateFile(False, aSha, aMode, path)
cleanMerge = False
newPath1 = uniquePath(path, branch1Name)
newPath2 = uniquePath(path, branch2Name)
- print 'CONFLICT (add/add): File "' + path + \
- '" added non-identically in both branches.'
+ print 'CONFLICT (add/add): File', path, \
+ 'added non-identically in both branches. Adding as', \
+ newPath1, 'and', newPath2, 'instead.'
removeFile(False, path)
updateFile(False, aSha, aMode, newPath1)
updateFile(False, bSha, bMode, newPath2)
#
# case D: Modified in both, but differently.
#
- print 'Auto-merging', path
- orig = runProgram(['git-unpack-file', oSha]).rstrip()
- src1 = runProgram(['git-unpack-file', aSha]).rstrip()
- src2 = runProgram(['git-unpack-file', bSha]).rstrip()
- [out, ret] = runProgram(['merge',
- '-L', branch1Name + '/' + path,
- '-L', 'orig/' + path,
- '-L', branch2Name + '/' + path,
- src1, orig, src2], returnCode=True)
-
- if aMode == oMode:
- mode = bMode
+ print 'Auto-merging', path
+ [sha, mode, clean, dummy] = \
+ mergeFile(path, oSha, oMode,
+ path, aSha, aMode,
+ path, bSha, bMode,
+ branch1Name, branch2Name)
+ if clean:
+ updateFile(True, sha, mode, path)
else:
- mode = aMode
-
- sha = runProgram(['git-hash-object', '-t', 'blob', '-w',
- src1]).rstrip()
-
- if ret != 0:
cleanMerge = False
- print 'CONFLICT (content): Merge conflict in "' + path + '".'
+ print 'CONFLICT (content): Merge conflict in', path
- if cleanCache:
+ if cacheOnly:
updateFile(False, sha, mode, path)
else:
- updateFile(True, aSha, aMode, path)
- updateFile(False, sha, mode, path, True)
- else:
- updateFile(True, sha, mode, path)
-
- os.unlink(orig)
- os.unlink(src1)
- os.unlink(src2)
+ updateFileExt(aSha, aMode, path,
+ updateCache=True, updateWd=False)
+ updateFileExt(sha, mode, path, updateCache=False, updateWd=True)
else:
die("ERROR: Fatal merge failure, shouldn't happen.")
try:
h1 = firstBranch = sys.argv[nextArg + 1]
h2 = secondBranch = sys.argv[nextArg + 2]
- except IndexError:
+ except IndexError:
usage()
break
graph = buildGraph([h1, h2])
- [res, clean] = merge(graph.shaMap[h1], graph.shaMap[h2],
- firstBranch, secondBranch, graph)
+ [dummy, clean] = merge(graph.shaMap[h1], graph.shaMap[h2],
+ firstBranch, secondBranch, graph)
print ''
except:
dropsave
exit 0
;;
-1,*)
+1,?*"$LF"?*)
# We are not doing octopus and not fast forward. Need a
# real merge.
;;
+1,*)
+ # We are not doing octopus, not fast forward, and have only
+ # one common. See if it is really trivial.
+ echo "Trying really trivial in-index merge..."
+ git-update-index --refresh 2>/dev/null
+ if git-read-tree --trivial -m -u $common $head "$1" &&
+ result_tree=$(git-write-tree)
+ then
+ echo "Wonderful."
+ result_commit=$(
+ echo "$merge_msg" |
+ git-commit-tree $result_tree -p HEAD -p "$1"
+ ) || exit
+ git-update-ref HEAD $result_commit $head
+ summary $result_commit
+ dropsave
+ exit 0
+ fi
+ echo "Nope."
+ ;;
*)
# An octopus. If we can reach all the remote we are up to date.
up_to_date=t
unset CDPATH
die() {
- echo "$@" >&2
+ echo >&2 "$@"
exit 1
}
-[ -h "$GIT_DIR/HEAD" ] &&
+case "$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD 2>/dev/null)" in
+refs/*) : ;;
+*) false ;;
+esac &&
[ -d "$GIT_DIR/refs" ] &&
[ -d "$GIT_OBJECT_DIRECTORY/00" ]
[ "$header" ]
}
-branch=`readlink "$GIT_DIR/HEAD"`
+branch=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD)
case "$branch" in
refs/heads/master) ;;
*) echo "# On branch $branch" ;;
esac
-git-update-index --refresh >/dev/null 2>&1
+git-update-index -q --unmerged --refresh || exit
-if test -f "$GIT_DIR/HEAD"
+if GIT_DIR="$GIT_DIR" git-rev-parse --verify HEAD >/dev/null 2>&1
then
git-diff-index -M --cached HEAD |
sed 's/^://' |
echo "Usage: git COMMAND [OPTIONS] [TARGET]"
if [ -n "$cmd" ]; then
- echo " git command '$cmd' not found: commands are:"
-else
- echo " git commands are:"
+ echo "git command '$cmd' not found."
fi
+echo "git commands are:"
-cat <<\EOF
- add apply archimport bisect branch checkout cherry clone
- commit count-objects cvsimport diff fetch format-patch
- fsck-cache get-tar-commit-id init-db log ls-remote octopus
- pack-objects parse-remote patch-id prune pull push rebase
- relink rename repack request-pull reset resolve revert
- send-email shortlog show-branch status tag verify-tag
- whatchanged
+fmt <<\EOF | sed -e 's/^/ /'
+add
+apply
+archimport
+bisect
+branch
+checkout
+cherry
+clone
+commit
+count-objects
+cvsimport
+diff
+fetch
+format-patch
+fsck-objects
+get-tar-commit-id
+init-db
+log
+ls-remote
+octopus
+pack-objects
+parse-remote
+patch-id
+prune
+pull
+push
+rebase
+relink
+rename
+repack
+request-pull
+reset
+resolve
+revert
+send-email
+shortlog
+show-branch
+status
+tag
+verify-tag
+whatchanged
EOF
#include "cache.h"
#include "commit.h"
-
+#include "pack.h"
#include "fetch.h"
#include <curl/curl.h>
#define curl_global_init(a) do { /* nothing */ } while(0)
#endif
+#define PREV_BUF_SIZE 4096
+#define RANGE_HEADER_SIZE 30
+
static CURL *curl;
static struct curl_slist *no_pragma_header;
+static struct curl_slist *no_range_header;
static char curl_errorstr[CURL_ERROR_SIZE];
static char *initial_base;
{
}
+int relink_or_rename(char *old, char *new) {
+ int ret;
+
+ ret = link(old, new);
+ if (ret < 0) {
+ /* Same Coda hack as in write_sha1_file(sha1_file.c) */
+ ret = errno;
+ if (ret == EXDEV && !rename(old, new))
+ return 0;
+ }
+ unlink(old);
+ if (ret) {
+ if (ret != EEXIST)
+ return ret;
+ }
+
+ return 0;
+}
+
static int got_alternates = 0;
static int fetch_index(struct alt_base *repo, unsigned char *sha1)
{
char *filename;
char *url;
+ char tmpfile[PATH_MAX];
+ int ret;
+ long prev_posn = 0;
+ char range[RANGE_HEADER_SIZE];
+ struct curl_slist *range_header = NULL;
+ CURLcode curl_result;
FILE *indexfile;
repo->base, sha1_to_hex(sha1));
filename = sha1_pack_index_name(sha1);
- indexfile = fopen(filename, "w");
+ snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
+ indexfile = fopen(tmpfile, "a");
if (!indexfile)
return error("Unable to open local file %s for pack index",
filename);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, no_pragma_header);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr);
- if (curl_easy_perform(curl)) {
+ /* If there is data present from a previous transfer attempt,
+ resume where it left off */
+ prev_posn = ftell(indexfile);
+ if (prev_posn>0) {
+ if (get_verbosely)
+ fprintf(stderr,
+ "Resuming fetch of index for pack %s at byte %ld\n",
+ sha1_to_hex(sha1), prev_posn);
+ sprintf(range, "Range: bytes=%ld-", prev_posn);
+ range_header = curl_slist_append(range_header, range);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, range_header);
+ }
+
+ /* Clear out the Range: header after performing the request, so
+ other curl requests don't inherit inappropriate header data */
+ curl_result = curl_easy_perform(curl);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, no_range_header);
+ if (curl_result != 0) {
fclose(indexfile);
return error("Unable to get pack index %s\n%s", url,
curl_errorstr);
}
fclose(indexfile);
+
+ ret = relink_or_rename(tmpfile, filename);
+ if (ret)
+ return error("unable to write index filename %s: %s",
+ filename, strerror(ret));
+
return 0;
}
struct packed_git **lst;
FILE *packfile;
char *filename;
+ char tmpfile[PATH_MAX];
+ int ret;
+ long prev_posn = 0;
+ char range[RANGE_HEADER_SIZE];
+ struct curl_slist *range_header = NULL;
+ CURLcode curl_result;
if (fetch_indices(repo))
return -1;
repo->base, sha1_to_hex(target->sha1));
filename = sha1_pack_name(target->sha1);
- packfile = fopen(filename, "w");
+ snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
+ packfile = fopen(tmpfile, "a");
if (!packfile)
return error("Unable to open local file %s for pack",
filename);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, no_pragma_header);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr);
- if (curl_easy_perform(curl)) {
+ /* If there is data present from a previous transfer attempt,
+ resume where it left off */
+ prev_posn = ftell(packfile);
+ if (prev_posn>0) {
+ if (get_verbosely)
+ fprintf(stderr,
+ "Resuming fetch of pack %s at byte %ld\n",
+ sha1_to_hex(target->sha1), prev_posn);
+ sprintf(range, "Range: bytes=%ld-", prev_posn);
+ range_header = curl_slist_append(range_header, range);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, range_header);
+ }
+
+ /* Clear out the Range: header after performing the request, so
+ other curl requests don't inherit inappropriate header data */
+ curl_result = curl_easy_perform(curl);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, no_range_header);
+ if (curl_result != 0) {
fclose(packfile);
return error("Unable to get pack file %s\n%s", url,
curl_errorstr);
fclose(packfile);
+ ret = relink_or_rename(tmpfile, filename);
+ if (ret)
+ return error("unable to write pack filename %s: %s",
+ filename, strerror(ret));
+
lst = &repo->packs;
while (*lst != target)
lst = &((*lst)->next);
*lst = (*lst)->next;
+ if (verify_pack(target, 0))
+ return -1;
install_packed_git(target);
return 0;
char *filename = sha1_file_name(sha1);
unsigned char real_sha1[20];
char tmpfile[PATH_MAX];
+ char prevfile[PATH_MAX];
int ret;
char *url;
char *posn;
+ int prevlocal;
+ unsigned char prev_buf[PREV_BUF_SIZE];
+ ssize_t prev_read = 0;
+ long prev_posn = 0;
+ char range[RANGE_HEADER_SIZE];
+ struct curl_slist *range_header = NULL;
+ CURLcode curl_result;
+
+ snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
+ snprintf(prevfile, sizeof(prevfile), "%s.prev", filename);
+
+ if (unlink(prevfile) && (errno != ENOENT))
+ return error("Failed to unlink %s (%s)",
+ prevfile, strerror(errno));
+ if (rename(tmpfile, prevfile) && (errno != ENOENT))
+ return error("Failed to rename %s to %s (%s)",
+ tmpfile, prevfile, strerror(errno));
- snprintf(tmpfile, sizeof(tmpfile), "%s/obj_XXXXXX",
- get_object_directory());
+ local = open(tmpfile, O_WRONLY | O_CREAT | O_EXCL, 0666);
+
+ /* Note: if another instance starts now, it will turn our new
+ tmpfile into its prevfile. */
- local = mkstemp(tmpfile);
if (local < 0)
return error("Couldn't create temporary file %s for %s: %s\n",
tmpfile, filename, strerror(errno));
curl_easy_setopt(curl, CURLOPT_URL, url);
- if (curl_easy_perform(curl)) {
- unlink(filename);
+ /* If a previous temp file is present, process what was already
+ fetched. */
+ prevlocal = open(prevfile, O_RDONLY);
+ if (prevlocal != -1) {
+ do {
+ prev_read = read(prevlocal, prev_buf, PREV_BUF_SIZE);
+ if (prev_read>0) {
+ if (fwrite_sha1_file(prev_buf,
+ 1,
+ prev_read,
+ NULL) == prev_read) {
+ prev_posn += prev_read;
+ } else {
+ prev_read = -1;
+ }
+ }
+ } while (prev_read > 0);
+ close(prevlocal);
+ }
+ unlink(prevfile);
+
+ /* Reset inflate/SHA1 if there was an error reading the previous temp
+ file; also rewind to the beginning of the local file. */
+ if (prev_read == -1) {
+ memset(&stream, 0, sizeof(stream));
+ inflateInit(&stream);
+ SHA1_Init(&c);
+ if (prev_posn>0) {
+ prev_posn = 0;
+ lseek(local, SEEK_SET, 0);
+ ftruncate(local, 0);
+ }
+ }
+
+ /* If we have successfully processed data from a previous fetch
+ attempt, only fetch the data we don't already have. */
+ if (prev_posn>0) {
+ if (get_verbosely)
+ fprintf(stderr,
+ "Resuming fetch of object %s at byte %ld\n",
+ hex, prev_posn);
+ sprintf(range, "Range: bytes=%ld-", prev_posn);
+ range_header = curl_slist_append(range_header, range);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, range_header);
+ }
+
+ /* Clear out the Range: header after performing the request, so
+ other curl requests don't inherit inappropriate header data */
+ curl_result = curl_easy_perform(curl);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, no_range_header);
+ if (curl_result != 0) {
return error("%s", curl_errorstr);
}
unlink(tmpfile);
return error("File %s has bad hash\n", hex);
}
- ret = link(tmpfile, filename);
- if (ret < 0) {
- /* Same Coda hack as in write_sha1_file(sha1_file.c) */
- ret = errno;
- if (ret == EXDEV && !rename(tmpfile, filename))
- goto out;
- }
- unlink(tmpfile);
- if (ret) {
- if (ret != EEXIST)
- return error("unable to write sha1 filename %s: %s",
- filename, strerror(ret));
- }
- out:
+ ret = relink_or_rename(tmpfile, filename);
+ if (ret)
+ return error("unable to write sha1 filename %s: %s",
+ filename, strerror(ret));
+
pull_say("got %s\n", hex);
return 0;
}
curl = curl_easy_init();
no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
+ no_range_header = curl_slist_append(no_range_header, "Range:");
curl_ssl_verify = getenv("GIT_SSL_NO_VERIFY") ? 0 : 1;
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, curl_ssl_verify);
signal(SIGINT, remove_lock_file_on_signal);
atexit(remove_lock_file);
}
- return open(cf->lockfile, O_RDWR | O_CREAT | O_EXCL, 0600);
+ return open(cf->lockfile, O_RDWR | O_CREAT | O_EXCL, 0666);
}
int commit_index_file(struct cache_file *cf)
{
unsigned len = strlen(git_dir);
static char path[PATH_MAX];
+ unsigned char sha1[20];
if (len > sizeof(path)-50)
die("insane git directory %s", git_dir);
/*
* Create the default symlink from ".git/HEAD" to the "master"
- * branch
+ * branch, if it does not exist yet.
*/
strcpy(path + len, "HEAD");
- if (symlink("refs/heads/master", path) < 0) {
- if (errno != EEXIST) {
- perror(path);
+ if (read_ref(path, sha1) < 0) {
+ if (create_symref(path, "refs/heads/master") < 0)
exit(1);
- }
}
+ path[len] = 0;
copy_templates(path, len, template_path);
}
static const char ls_files_usage[] =
"git-ls-files [-z] [-t] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
"[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
- "[ --exclude-per-directory=<filename> ]";
+ "[ --exclude-per-directory=<filename> ] [--] [<file>]*";
int main(int argc, const char **argv)
{
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
+ if (!strcmp(arg, "--")) {
+ i++;
+ break;
+ }
if (!strcmp(arg, "-z")) {
line_terminator = 0;
continue;
unsigned long len = parse_email(map, size);
assert(len <= size);
sprintf(name, "%04d", ++nr);
- fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0600);
+ fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666);
if (fd < 0) {
perror(name);
exit(1);
errno = EBUSY;
if (active_cache)
- return error("more than one cachefile");
+ return active_nr;
+
errno = ENOENT;
fd = open(get_index_file(), O_RDONLY);
- if (fd < 0)
- return (errno == ENOENT) ? 0 : error("open failed");
+ if (fd < 0) {
+ if (errno == ENOENT)
+ return 0;
+ die("index file open failed (%s)", strerror(errno));
+ }
size = 0; // avoid gcc warning
map = MAP_FAILED;
}
close(fd);
if (map == MAP_FAILED)
- return error("mmap failed");
+ die("index file mmap failed (%s)", strerror(errno));
hdr = map;
if (verify_hdr(hdr, size) < 0)
unmap:
munmap(map, size);
errno = EINVAL;
- return error("verify header failed");
+ die("index file corrupt");
}
#define WRITE_BUFFER_SIZE 8192
static int merge = 0;
static int update = 0;
static int index_only = 0;
+static int nontrivial_merge = 0;
+static int trivial_merges_only = 0;
static int head_idx = -1;
static int merge_size = 0;
if (unpack_trees_rec(posns, len, "", fn, &indpos))
return -1;
+ if (trivial_merges_only && nontrivial_merge)
+ die("Merge requires file-level merging");
+
check_updates(active_cache, active_nr);
return 0;
}
verify_uptodate(index);
}
+ nontrivial_merge = 1;
+
/* #2, #3, #4, #6, #7, #9, #11. */
count = 0;
if (!head_match || !remote_match) {
continue;
}
- if (!strcmp(arg, "--head")) {
- head_idx = stage - 1;
- fn = threeway_merge;
+ if (!strcmp(arg, "--trivial")) {
+ trivial_merges_only = 1;
+ continue;
}
/* "-m" stands for "merge", meaning we start in stage 1 */
}
if ((update||index_only) && !merge)
usage(read_tree_usage);
- if (merge && !fn) {
+
+ if (merge) {
if (stage < 2)
die("just how do you expect me to merge %d trees?", stage-1);
switch (stage - 1) {
fn = threeway_merge;
break;
}
- }
- if (head_idx < 0) {
if (stage - 1 >= 3)
head_idx = stage - 2;
else
#include "cache.h"
#include <errno.h>
+#include <ctype.h>
-static int read_ref(const char *refname, unsigned char *sha1)
+/* We allow "recursive" symbolic refs. Only within reason, though */
+#define MAXDEPTH 5
+
+#ifndef USE_SYMLINK_HEAD
+#define USE_SYMLINK_HEAD 1
+#endif
+
+int validate_symref(const char *path)
{
- int ret = -1;
- int fd = open(git_path("%s", refname), O_RDONLY);
+ struct stat st;
+ char *buf, buffer[256];
+ int len, fd;
+
+ if (lstat(path, &st) < 0)
+ return -1;
+
+ /* Make sure it is a "refs/.." symlink */
+ if (S_ISLNK(st.st_mode)) {
+ len = readlink(path, buffer, sizeof(buffer)-1);
+ if (len >= 5 && !memcmp("refs/", buffer, 5))
+ return 0;
+ return -1;
+ }
+
+ /*
+ * Anything else, just open it and try to see if it is a symbolic ref.
+ */
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return -1;
+ len = read(fd, buffer, sizeof(buffer)-1);
+ close(fd);
+
+ /*
+ * Is it a symbolic ref?
+ */
+ if (len < 4 || memcmp("ref:", buffer, 4))
+ return -1;
+ buf = buffer + 4;
+ len -= 4;
+ while (len && isspace(*buf))
+ buf++, len--;
+ if (len >= 5 && !memcmp("refs/", buffer, 5))
+ return 0;
+ return -1;
+}
- if (fd >= 0) {
- char buffer[60];
- if (read(fd, buffer, sizeof(buffer)) >= 40)
- ret = get_sha1_hex(buffer, sha1);
+const char *resolve_ref(const char *path, unsigned char *sha1, int reading)
+{
+ int depth = MAXDEPTH, len;
+ char buffer[256];
+
+ for (;;) {
+ struct stat st;
+ char *buf;
+ int fd;
+
+ if (--depth < 0)
+ return NULL;
+
+ /* Special case: non-existing file.
+ * Not having the refs/heads/new-branch is OK
+ * if we are writing into it, so is .git/HEAD
+ * that points at refs/heads/master still to be
+ * born. It is NOT OK if we are resolving for
+ * reading.
+ */
+ if (lstat(path, &st) < 0) {
+ if (reading || errno != ENOENT)
+ return NULL;
+ memset(sha1, 0, 20);
+ return path;
+ }
+
+ /* Follow "normalized" - ie "refs/.." symlinks by hand */
+ if (S_ISLNK(st.st_mode)) {
+ len = readlink(path, buffer, sizeof(buffer)-1);
+ if (len >= 5 && !memcmp("refs/", buffer, 5)) {
+ path = git_path("%.*s", len, buffer);
+ continue;
+ }
+ }
+
+ /*
+ * Anything else, just open it and try to use it as
+ * a ref
+ */
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return NULL;
+ len = read(fd, buffer, sizeof(buffer)-1);
close(fd);
+
+ /*
+ * Is it a symbolic ref?
+ */
+ if (len < 4 || memcmp("ref:", buffer, 4))
+ break;
+ buf = buffer + 4;
+ len -= 4;
+ while (len && isspace(*buf))
+ buf++, len--;
+ while (len && isspace(buf[len-1]))
+ buf[--len] = 0;
+ path = git_path("%.*s", len, buf);
}
- return ret;
+ if (len < 40 || get_sha1_hex(buffer, sha1))
+ return NULL;
+ return path;
+}
+
+int create_symref(const char *git_HEAD, const char *refs_heads_master)
+{
+#if USE_SYMLINK_HEAD
+ unlink(git_HEAD);
+ return symlink(refs_heads_master, git_HEAD);
+#else
+ const char *lockpath;
+ char ref[1000];
+ int fd, len, written;
+
+ len = snprintf(ref, sizeof(ref), "ref: %s\n", refs_heads_master);
+ if (sizeof(ref) <= len) {
+ error("refname too long: %s", refs_heads_master);
+ return -1;
+ }
+ lockpath = mkpath("%s.lock", git_HEAD);
+ fd = open(lockpath, O_CREAT | O_EXCL | O_WRONLY, 0666);
+ written = write(fd, ref, len);
+ close(fd);
+ if (written != len) {
+ unlink(lockpath);
+ error("Unable to write to %s", lockpath);
+ return -2;
+ }
+ if (rename(lockpath, git_HEAD) < 0) {
+ unlink(lockpath);
+ error("Unable to create %s", git_HEAD);
+ return -3;
+ }
+ return 0;
+#endif
+}
+
+int read_ref(const char *filename, unsigned char *sha1)
+{
+ if (resolve_ref(filename, sha1, 1))
+ return 0;
+ return -1;
}
static int do_for_each_ref(const char *base, int (*fn)(const char *path, const unsigned char *sha1))
break;
continue;
}
- if (read_ref(path, sha1) < 0)
+ if (read_ref(git_path("%s", path), sha1) < 0)
continue;
if (!has_sha1_file(sha1))
continue;
int head_ref(int (*fn)(const char *path, const unsigned char *sha1))
{
unsigned char sha1[20];
- if (!read_ref("HEAD", sha1))
+ if (!read_ref(git_path("HEAD"), sha1))
return fn("HEAD", sha1);
return 0;
}
return ret;
}
-static int read_ref_file(const char *filename, unsigned char *sha1) {
- int fd = open(filename, O_RDONLY);
- char hex[41];
- if (fd < 0) {
- return error("Couldn't open %s\n", filename);
- }
- if ((read(fd, hex, 41) < 41) ||
- (hex[40] != '\n') ||
- get_sha1_hex(hex, sha1)) {
- error("Couldn't read a hash from %s\n", filename);
- close(fd);
- return -1;
- }
- close(fd);
- return 0;
-}
-
int get_ref_sha1(const char *ref, unsigned char *sha1)
{
- char *filename;
- int retval;
+ const char *filename;
+
if (check_ref_format(ref))
return -1;
- filename = ref_file_name(ref);
- retval = read_ref_file(filename, sha1);
- free(filename);
- return retval;
+ filename = git_path("refs/%s", ref);
+ return read_ref(filename, sha1);
}
static int lock_ref_file(const char *filename, const char *lock_filename,
return error("Couldn't open lock file for %s: %s",
filename, strerror(errno));
}
- retval = read_ref_file(filename, current_sha1);
+ retval = read_ref(filename, current_sha1);
if (old_sha1) {
if (retval) {
close(fd);
* Test it it looks like we're at the top
* level git directory. We want to see a
*
- * - a HEAD symlink and a refs/ directory under ".git"
* - either a .git/objects/ directory _or_ the proper
* GIT_OBJECT_DIRECTORY environment variable
+ * - a refs/ directory under ".git"
+ * - either a HEAD symlink or a HEAD file that is formatted as
+ * a proper "ref:".
*/
static int is_toplevel_directory(void)
{
- struct stat st;
-
- return !lstat(".git/HEAD", &st) &&
- S_ISLNK(st.st_mode) &&
- !access(".git/refs/", X_OK) &&
- (getenv(DB_ENVIRONMENT) || !access(".git/objects/", X_OK));
+ if (access(".git/refs/", X_OK) ||
+ access(getenv(DB_ENVIRONMENT) ?
+ getenv(DB_ENVIRONMENT) : ".git/objects/", X_OK) ||
+ validate_symref(".git/HEAD"))
+ return 0;
+ return 1;
}
const char *setup_git_directory(void)
#endif
#endif
+const unsigned char null_sha1[20] = { 0, };
+
static unsigned int sha1_file_open_flag = O_NOATIME;
static unsigned hexval(char c)
return -1;
}
-static int get_sha1_file(const char *path, unsigned char *result)
-{
- char buffer[60];
- int fd = open(path, O_RDONLY);
- int len;
-
- if (fd < 0)
- return -1;
- len = read(fd, buffer, sizeof(buffer));
- close(fd);
- if (len < 40)
- return -1;
- return get_sha1_hex(buffer, result);
-}
-
static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
{
static const char *prefix[] = {
for (p = prefix; *p; p++) {
char *pathname = git_path("%s/%.*s", *p, len, str);
- if (!get_sha1_file(pathname, sha1))
+ if (!read_ref(pathname, sha1))
return 0;
}
int all_heads = 0, all_tags = 0;
int all_mask, all_revs, shown_merge_point;
char head_path[128];
+ const char *head_path_p;
int head_path_len;
unsigned char head_sha1[20];
int merge_base = 0;
if (0 <= extra)
join_revs(&list, &seen, num_rev, extra);
- head_path_len = readlink(".git/HEAD", head_path, sizeof(head_path)-1);
- if ((head_path_len < 0) || get_sha1("HEAD", head_sha1))
+ head_path_p = resolve_ref(git_path("HEAD"), head_sha1, 1);
+ if (head_path_p) {
+ head_path_len = strlen(head_path_p);
+ memcpy(head_path, head_path_p, head_path_len + 1);
+ }
+ else {
+ head_path_len = 0;
head_path[0] = 0;
- else
- head_path[head_path_len] = 0;
+ }
if (merge_base)
return show_merge_base(seen, num_rev);
--- /dev/null
+#include "cache.h"
+
+static const char git_symbolic_ref_usage[] =
+"git-symbolic-ref name [ref]";
+
+static int check_symref(const char *HEAD)
+{
+ unsigned char sha1[20];
+ const char *git_HEAD = strdup(git_path("%s", HEAD));
+ const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 0);
+ if (git_refs_heads_master) {
+ /* we want to strip the .git/ part */
+ int pfxlen = strlen(git_HEAD) - strlen(HEAD);
+ puts(git_refs_heads_master + pfxlen);
+ }
+ else
+ die("No such ref: %s", HEAD);
+}
+
+int main(int argc, const char **argv)
+{
+ setup_git_directory();
+ switch (argc) {
+ case 2:
+ check_symref(argv[1]);
+ break;
+ case 3:
+ create_symref(strdup(git_path("%s", argv[1])), argv[2]);
+ break;
+ default:
+ usage(git_symbolic_ref_usage);
+ }
+ return 0;
+}
#GIT_TEST_OPTS=--verbose --debug
SHELL_PATH ?= $(SHELL)
+TAR ?= $(TAR)
T = $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)
--- /dev/null
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+
+test_description='git-ls-files test (-- to terminate the path list).
+
+This test runs git-ls-files --others with the following on the
+filesystem.
+
+ path0 - a file
+ -foo - a file with a funny name.
+ -- - another file with a funny name.
+'
+. ./test-lib.sh
+
+test_expect_success \
+ setup \
+ 'echo frotz >path0 &&
+ echo frotz >./-foo &&
+ echo frotz >./--'
+
+test_expect_success \
+ 'git-ls-files without path restriction.' \
+ 'git-ls-files --others >output &&
+ diff -u output - <<EOF
+--
+-foo
+output
+path0
+EOF
+'
+
+test_expect_success \
+ 'git-ls-files with path restriction.' \
+ 'git-ls-files --others path0 >output &&
+ diff -u output - <<EOF
+path0
+EOF
+'
+
+test_expect_success \
+ 'git-ls-files with path restriction with --.' \
+ 'git-ls-files --others -- path0 >output &&
+ diff -u output - <<EOF
+path0
+EOF
+'
+
+test_expect_success \
+ 'git-ls-files with path restriction with -- --.' \
+ 'git-ls-files --others -- -- >output &&
+ diff -u output - <<EOF
+--
+EOF
+'
+
+test_expect_success \
+ 'git-ls-files with no path restriction.' \
+ 'git-ls-files --others -- >output &&
+ diff -u output - <<EOF
+--
+-foo
+output
+path0
+EOF
+'
+
+test_done
test_expect_success \
'validate file modification time' \
- 'TZ=GMT tar tvf b.tar a/a |
+ 'TZ=GMT $TAR tvf b.tar a/a |
awk \{print\ \$4,\ \(length\(\$5\)\<7\)\ ?\ \$5\":00\"\ :\ \$5\} \
>b.mtime &&
echo "2005-05-27 22:00:00" >expected.mtime &&
test_expect_success \
'extract tar archive' \
- '(cd b && tar xf -) <b.tar'
+ '(cd b && $TAR xf -) <b.tar'
test_expect_success \
'validate filenames' \
test_expect_success \
'extract tar archive with prefix' \
- '(cd c && tar xf -) <c.tar'
+ '(cd c && $TAR xf -) <c.tar'
test_expect_success \
'validate filenames with prefix' \
commit=$(echo "Commit #$i" | git-commit-tree $tree -p $parent) &&
parent=$commit || return 1
done &&
- echo "$commit" >.git/HEAD &&
+ git-update-ref HEAD "$commit" &&
git-clone -l ./. victim &&
cd victim &&
git-log &&
cd .. &&
- echo $zero >.git/HEAD &&
+ git-update-ref HEAD "$zero" &&
parent=$zero &&
for i in $cnt
do
commit=$(echo "Rebase #$i" | git-commit-tree $tree -p $parent) &&
parent=$commit || return 1
done &&
- echo "$commit" >.git/HEAD &&
+ git-update-ref HEAD "$commit" &&
echo Rebase &&
git-log'
. ./test-lib.sh
. ../t6000lib.sh # t6xxx specific functions
-bc_expr()
-{
-bc <<EOF
-scale=1
-define abs(x) {
- if (x>=0) { return (x); } else { return (-x); }
-}
-define floor(x) {
- save=scale; scale=0; result=x/1; scale=save; return (result);
-}
-$*
-EOF
-}
-
# usage: test_bisection max-diff bisect-option head ^prune...
#
# e.g. test_bisection 1 --bisect l1 ^l0
_head=$1
shift 1
_bisection_size=$(git-rev-list $_bisection "$@" | wc -l)
- [ -n "$_list_size" -a -n "$_bisection_size" ] || error "test_bisection_diff failed"
- test_expect_success "bisection diff $_bisect_option $_head $* <= $_max_diff" "[ $(bc_expr "floor(abs($_list_size/2)-$_bisection_size)") -le $_max_diff ]"
+ [ -n "$_list_size" -a -n "$_bisection_size" ] ||
+ error "test_bisection_diff failed"
+
+ # Test if bisection size is close to half of list size within
+ # tolerance.
+ #
+ _bisect_err=`expr $_list_size - $_bisection_size \* 2`
+ test "$_bisect_err" -lt 0 && _bisect_err=`expr 0 - $_bisect_err`
+ _bisect_err=`expr $_bisect_err / 2` ; # floor
+
+ test_expect_success \
+ "bisection diff $_bisect_option $_head $* <= $_max_diff" \
+ 'test $_bisect_err -le $_max_diff'
}
date >path0
if (size < namelen + 20 || sscanf(buffer, "%o", &mode) != 1)
die("corrupt 'tree' file");
+ if (S_ISDIR(mode) || S_ISREG(mode))
+ mode |= (mode & 0100) ? 0777 : 0666;
buffer = sha1 + 20;
size -= namelen + 20;
* like "git-update-index *" and suddenly having all the object
* files be revision controlled.
*/
-static int allow_add = 0, allow_remove = 0, allow_replace = 0, not_new = 0, quiet = 0, info_only = 0;
+static int allow_add = 0, allow_remove = 0, allow_replace = 0, allow_unmerged = 0, not_new = 0, quiet = 0, info_only = 0;
static int force_remove;
/* Three functions to allow overloaded pointer return; see linux/err.h */
changed = ce_match_stat(ce, &st);
if (!changed)
- return ce;
+ return NULL;
if (ce_modified(ce, &st))
return ERR_PTR(-EINVAL);
struct cache_entry *ce, *new;
ce = active_cache[i];
if (ce_stage(ce)) {
- printf("%s: needs merge\n", ce->name);
- has_errors = 1;
while ((i < active_nr) &&
! strcmp(active_cache[i]->name, ce->name))
i++;
i--;
+ if (allow_unmerged)
+ continue;
+ printf("%s: needs merge\n", ce->name);
+ has_errors = 1;
continue;
}
new = refresh_entry(ce);
+ if (!new)
+ continue;
if (IS_ERR(new)) {
if (not_new && PTR_ERR(new) == -ENOENT)
continue;
allow_remove = 1;
continue;
}
+ if (!strcmp(path, "--unmerged")) {
+ allow_unmerged = 1;
+ continue;
+ }
if (!strcmp(path, "--refresh")) {
has_errors |= refresh_cache();
continue;
update_one(buf.buf, prefix, prefix_length);
}
}
- if (write_cache(newfd, active_cache, active_nr) ||
- commit_index_file(&cache_file))
- die("Unable to write new cachefile");
+ if (active_cache_changed) {
+ if (write_cache(newfd, active_cache, active_nr) ||
+ commit_index_file(&cache_file))
+ die("Unable to write new cachefile");
+ }
return has_errors ? 1 : 0;
}
static const char git_update_ref_usage[] = "git-update-ref <refname> <value> [<oldval>]";
-#define MAXDEPTH 5
-
-static const char *resolve_ref(const char *path, unsigned char *sha1)
-{
- int depth = MAXDEPTH, len;
- char buffer[256];
-
- for (;;) {
- struct stat st;
- int fd;
-
- if (--depth < 0)
- return NULL;
-
- /* Special case: non-existing file */
- if (lstat(path, &st) < 0) {
- if (errno != ENOENT)
- return NULL;
- memset(sha1, 0, 20);
- return path;
- }
-
- /* Follow "normalized" - ie "refs/.." symlinks by hand */
- if (S_ISLNK(st.st_mode)) {
- len = readlink(path, buffer, sizeof(buffer)-1);
- if (len >= 5 && !memcmp("refs/", buffer, 5)) {
- path = git_path("%.*s", len, buffer);
- continue;
- }
- }
-
- /*
- * Anything else, just open it and try to use it as
- * a ref
- */
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return NULL;
- len = read(fd, buffer, sizeof(buffer)-1);
- close(fd);
- break;
- }
- if (len < 40 || get_sha1_hex(buffer, sha1))
- return NULL;
- return path;
-}
-
static int re_verify(const char *path, unsigned char *oldsha1, unsigned char *currsha1)
{
char buf[40];
if (oldval && get_sha1(oldval, oldsha1) < 0)
die("%s: not a valid old SHA1", oldval);
- path = resolve_ref(git_path("%s", refname), currsha1);
+ path = resolve_ref(git_path("%s", refname), currsha1, !!oldval);
if (!path)
die("No such ref: %s", refname);
void usage(const char *err)
{
fprintf(stderr, "usage: %s\n", err);
- exit(1);
+ exit(129);
}
void die(const char *err, ...)
va_start(params, err);
report("fatal: ", err, params);
va_end(params);
- exit(1);
+ exit(128);
}
int error(const char *err, ...)
projects / git.git / commitdiff