builtin/checkout: compute checkout metadata for checkouts

Provide commit metadata for checkout code paths that use unpack_trees
and friends.  When we're checking out a commit, use the commit
information, but don't provide commit information if we're checking out
from the index, since there need not be any particular commit associated
with the index, and even if there is one, we can't know what it is.

Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
pull/740/head
brian m. carlson 3 years ago committed by Junio C Hamano
parent c397aac02f
commit 13e7ed6a3a
  1. 18
      builtin/checkout.c
  2. 1
      merge.c
  3. 78
      t/t0021-conversion.sh
  4. 2
      t/t0021/rot13-filter.pl
  5. 1
      unpack-trees.c
  6. 1
      unpack-trees.h

@ -604,7 +604,8 @@ static void describe_detached_head(const char *msg, struct commit *commit)
}
static int reset_tree(struct tree *tree, const struct checkout_opts *o,
int worktree, int *writeout_error)
int worktree, int *writeout_error,
struct branch_info *info)
{
struct unpack_trees_options opts;
struct tree_desc tree_desc;
@ -619,6 +620,11 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o,
opts.verbose_update = o->show_progress;
opts.src_index = &the_index;
opts.dst_index = &the_index;
init_checkout_metadata(&opts.meta, info->refname,
info->commit ? &info->commit->object.oid :
is_null_oid(&info->oid) ? &tree->object.oid :
&info->oid,
NULL);
parse_tree(tree);
init_tree_desc(&tree_desc, tree->buffer, tree->size);
switch (unpack_trees(1, &tree_desc, &opts)) {
@ -677,7 +683,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
} else
new_tree = get_commit_tree(new_branch_info->commit);
if (opts->discard_changes) {
ret = reset_tree(new_tree, opts, 1, writeout_error);
ret = reset_tree(new_tree, opts, 1, writeout_error, new_branch_info);
if (ret)
return ret;
} else {
@ -706,6 +712,10 @@ static int merge_working_tree(const struct checkout_opts *opts,
topts.quiet = opts->merge && old_branch_info->commit;
topts.verbose_update = opts->show_progress;
topts.fn = twoway_merge;
init_checkout_metadata(&topts.meta, new_branch_info->refname,
new_branch_info->commit ?
&new_branch_info->commit->object.oid :
&new_branch_info->oid, NULL);
if (opts->overwrite_ignore) {
topts.dir = xcalloc(1, sizeof(*topts.dir));
topts.dir->flags |= DIR_SHOW_IGNORED;
@ -776,7 +786,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
ret = reset_tree(new_tree,
opts, 1,
writeout_error);
writeout_error, new_branch_info);
if (ret)
return ret;
o.ancestor = old_branch_info->name;
@ -796,7 +806,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
exit(128);
ret = reset_tree(new_tree,
opts, 0,
writeout_error);
writeout_error, new_branch_info);
strbuf_release(&o.obuf);
strbuf_release(&old_commit_shortname);
if (ret)

@ -94,6 +94,7 @@ int checkout_fast_forward(struct repository *r,
opts.verbose_update = 1;
opts.merge = 1;
opts.fn = twoway_merge;
init_checkout_metadata(&opts.meta, NULL, remote, NULL);
setup_unpack_trees_porcelain(&opts, "merge");
if (unpack_trees(nr_trees, t, &opts)) {

@ -364,6 +364,10 @@ test_expect_success PERL 'required process filter should filter data' '
S=$(file_size test.r) &&
S2=$(file_size test2.r) &&
S3=$(file_size "testsubdir/test3 '\''sq'\'',\$x=.r") &&
M=$(git hash-object test.r) &&
M2=$(git hash-object test2.r) &&
M3=$(git hash-object "testsubdir/test3 '\''sq'\'',\$x=.r") &&
EMPTY=$(git hash-object /dev/null) &&
filter_git add . &&
cat >expected.log <<-EOF &&
@ -378,14 +382,15 @@ test_expect_success PERL 'required process filter should filter data' '
test_cmp_count expected.log debug.log &&
git commit -m "test commit 2" &&
META="ref=refs/heads/master treeish=$(git rev-parse --verify master)" &&
rm -f test2.r "testsubdir/test3 '\''sq'\'',\$x=.r" &&
filter_git checkout --quiet --no-progress . &&
cat >expected.log <<-EOF &&
START
init handshake complete
IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $S3 [OK] -- OUT: $S3 . [OK]
IN: smudge test2.r blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
STOP
EOF
test_cmp_exclude_clean expected.log debug.log &&
@ -406,10 +411,10 @@ test_expect_success PERL 'required process filter should filter data' '
cat >expected.log <<-EOF &&
START
init handshake complete
IN: smudge test.r $S [OK] -- OUT: $S . [OK]
IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
IN: smudge test4-empty.r 0 [OK] -- OUT: 0 [OK]
IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $S3 [OK] -- OUT: $S3 . [OK]
IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0 [OK]
IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
STOP
EOF
test_cmp_exclude_clean expected.log debug.log &&
@ -519,17 +524,22 @@ test_expect_success PERL 'required process filter should process multiple packet
EOF
test_cmp_count expected.log debug.log &&
rm -f *.file &&
M1="blob=$(git hash-object 1pkt_1__.file)" &&
M2="blob=$(git hash-object 2pkt_1+1.file)" &&
M3="blob=$(git hash-object 2pkt_2-1.file)" &&
M4="blob=$(git hash-object 2pkt_2__.file)" &&
M5="blob=$(git hash-object 3pkt_2+1.file)" &&
rm -f *.file debug.log &&
filter_git checkout --quiet --no-progress -- *.file &&
cat >expected.log <<-EOF &&
START
init handshake complete
IN: smudge 1pkt_1__.file $(($S )) [OK] -- OUT: $(($S )) . [OK]
IN: smudge 2pkt_1+1.file $(($S +1)) [OK] -- OUT: $(($S +1)) .. [OK]
IN: smudge 2pkt_2-1.file $(($S*2-1)) [OK] -- OUT: $(($S*2-1)) .. [OK]
IN: smudge 2pkt_2__.file $(($S*2 )) [OK] -- OUT: $(($S*2 )) .. [OK]
IN: smudge 3pkt_2+1.file $(($S*2+1)) [OK] -- OUT: $(($S*2+1)) ... [OK]
IN: smudge 1pkt_1__.file $M1 $(($S )) [OK] -- OUT: $(($S )) . [OK]
IN: smudge 2pkt_1+1.file $M2 $(($S +1)) [OK] -- OUT: $(($S +1)) .. [OK]
IN: smudge 2pkt_2-1.file $M3 $(($S*2-1)) [OK] -- OUT: $(($S*2-1)) .. [OK]
IN: smudge 2pkt_2__.file $M4 $(($S*2 )) [OK] -- OUT: $(($S*2 )) .. [OK]
IN: smudge 3pkt_2+1.file $M5 $(($S*2+1)) [OK] -- OUT: $(($S*2+1)) ... [OK]
STOP
EOF
test_cmp_exclude_clean expected.log debug.log &&
@ -578,6 +588,10 @@ test_expect_success PERL 'process filter should restart after unexpected write f
S=$(file_size test.r) &&
S2=$(file_size test2.r) &&
SF=$(file_size smudge-write-fail.r) &&
M=$(git hash-object test.r) &&
M2=$(git hash-object test2.r) &&
MF=$(git hash-object smudge-write-fail.r) &&
rm -f debug.log &&
git add . &&
rm -f *.r &&
@ -591,11 +605,11 @@ test_expect_success PERL 'process filter should restart after unexpected write f
cat >expected.log <<-EOF &&
START
init handshake complete
IN: smudge smudge-write-fail.r $SF [OK] -- [WRITE FAIL]
IN: smudge smudge-write-fail.r blob=$MF $SF [OK] -- [WRITE FAIL]
START
init handshake complete
IN: smudge test.r $S [OK] -- OUT: $S . [OK]
IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
IN: smudge test.r blob=$M $S [OK] -- OUT: $S . [OK]
IN: smudge test2.r blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
STOP
EOF
test_cmp_exclude_clean expected.log debug.log &&
@ -629,6 +643,10 @@ test_expect_success PERL 'process filter should not be restarted if it signals a
S=$(file_size test.r) &&
S2=$(file_size test2.r) &&
SE=$(file_size error.r) &&
M=$(git hash-object test.r) &&
M2=$(git hash-object test2.r) &&
ME=$(git hash-object error.r) &&
rm -f debug.log &&
git add . &&
rm -f *.r &&
@ -637,9 +655,9 @@ test_expect_success PERL 'process filter should not be restarted if it signals a
cat >expected.log <<-EOF &&
START
init handshake complete
IN: smudge error.r $SE [OK] -- [ERROR]
IN: smudge test.r $S [OK] -- OUT: $S . [OK]
IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
IN: smudge error.r blob=$ME $SE [OK] -- [ERROR]
IN: smudge test.r blob=$M $S [OK] -- OUT: $S . [OK]
IN: smudge test2.r blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
STOP
EOF
test_cmp_exclude_clean expected.log debug.log &&
@ -665,18 +683,21 @@ test_expect_success PERL 'process filter abort stops processing of all further f
echo "error this blob and all future blobs" >abort.o &&
cp abort.o abort.r &&
M="blob=$(git hash-object abort.r)" &&
rm -f debug.log &&
SA=$(file_size abort.r) &&
git add . &&
rm -f *.r &&
# Note: This test assumes that Git filters files in alphabetical
# order ("abort.r" before "test.r").
filter_git checkout --quiet --no-progress . &&
cat >expected.log <<-EOF &&
START
init handshake complete
IN: smudge abort.r $SA [OK] -- [ABORT]
IN: smudge abort.r $M $SA [OK] -- [ABORT]
STOP
EOF
test_cmp_exclude_clean expected.log debug.log &&
@ -727,27 +748,28 @@ test_expect_success PERL 'delayed checkout in process filter' '
) &&
S=$(file_size "$TEST_ROOT/test.o") &&
M="blob=$(git -C repo rev-parse --verify master:test.a)" &&
cat >a.exp <<-EOF &&
START
init handshake complete
IN: smudge test.a $S [OK] -- OUT: $S . [OK]
IN: smudge test-delay10.a $S [OK] -- [DELAYED]
IN: smudge test-delay11.a $S [OK] -- [DELAYED]
IN: smudge test-delay20.a $S [OK] -- [DELAYED]
IN: smudge test.a $M $S [OK] -- OUT: $S . [OK]
IN: smudge test-delay10.a $M $S [OK] -- [DELAYED]
IN: smudge test-delay11.a $M $S [OK] -- [DELAYED]
IN: smudge test-delay20.a $M $S [OK] -- [DELAYED]
IN: list_available_blobs test-delay10.a test-delay11.a [OK]
IN: smudge test-delay10.a 0 [OK] -- OUT: $S . [OK]
IN: smudge test-delay11.a 0 [OK] -- OUT: $S . [OK]
IN: smudge test-delay10.a $M 0 [OK] -- OUT: $S . [OK]
IN: smudge test-delay11.a $M 0 [OK] -- OUT: $S . [OK]
IN: list_available_blobs test-delay20.a [OK]
IN: smudge test-delay20.a 0 [OK] -- OUT: $S . [OK]
IN: smudge test-delay20.a $M 0 [OK] -- OUT: $S . [OK]
IN: list_available_blobs [OK]
STOP
EOF
cat >b.exp <<-EOF &&
START
init handshake complete
IN: smudge test-delay10.b $S [OK] -- [DELAYED]
IN: smudge test-delay10.b $M $S [OK] -- [DELAYED]
IN: list_available_blobs test-delay10.b [OK]
IN: smudge test-delay10.b 0 [OK] -- OUT: $S . [OK]
IN: smudge test-delay10.b $M 0 [OK] -- OUT: $S . [OK]
IN: list_available_blobs [OK]
STOP
EOF

@ -136,7 +136,7 @@ while (1) {
$DELAY{$pathname}{"requested"} = 1;
}
} elsif ($buffer =~ /^(ref|treeish|blob)=/) {
# Do nothing.
print $debug " $buffer";
} else {
# In general, filters need to be graceful about
# new metadata, since it's documented that we

@ -371,6 +371,7 @@ static int check_updates(struct unpack_trees_options *o)
state.quiet = 1;
state.refresh_cache = 1;
state.istate = index;
clone_checkout_metadata(&state.meta, &o->meta, NULL);
if (!o->update || o->dry_run) {
remove_marked_cache_entries(index, 0);

@ -85,6 +85,7 @@ struct unpack_trees_options {
struct index_state result;
struct pattern_list *pl; /* for internal use */
struct checkout_metadata meta;
};
int unpack_trees(unsigned n, struct tree_desc *t,

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