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Merge branch 'mh/reporting-broken-refs-from-for-each-ref' into maint
"git for-each-ref" reported "missing object" for 0{40} when it encounters a broken ref. The lack of object whose name is 0{40} is not the problem; the ref being broken is. * mh/reporting-broken-refs-from-for-each-ref: read_loose_refs(): treat NULL_SHA1 loose references as broken read_loose_refs(): simplify function logic for-each-ref: report broken references correctly t6301: new tests of for-each-ref error handling
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commit
0533a9b70c
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@ -851,6 +851,11 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f
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return 0;
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return 0;
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}
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}
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if (flag & REF_ISBROKEN) {
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warning("ignoring broken ref %s", refname);
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return 0;
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}
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if (*cb->grab_pattern) {
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if (*cb->grab_pattern) {
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const char **pattern;
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const char **pattern;
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int namelen = strlen(refname);
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int namelen = strlen(refname);
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29
refs.c
29
refs.c
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@ -1374,19 +1374,34 @@ static void read_loose_refs(const char *dirname, struct ref_dir *dir)
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create_dir_entry(refs, refname.buf,
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create_dir_entry(refs, refname.buf,
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refname.len, 1));
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refname.len, 1));
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} else {
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} else {
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int read_ok;
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if (*refs->name) {
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if (*refs->name) {
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hashclr(sha1);
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hashclr(sha1);
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flag = 0;
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flag = 0;
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if (resolve_gitlink_ref(refs->name, refname.buf, sha1) < 0) {
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read_ok = !resolve_gitlink_ref(refs->name,
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hashclr(sha1);
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refname.buf, sha1);
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flag |= REF_ISBROKEN;
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} else {
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}
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read_ok = !read_ref_full(refname.buf,
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} else if (read_ref_full(refname.buf,
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RESOLVE_REF_READING,
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RESOLVE_REF_READING,
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sha1, &flag);
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sha1, &flag)) {
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}
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if (!read_ok) {
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hashclr(sha1);
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hashclr(sha1);
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flag |= REF_ISBROKEN;
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flag |= REF_ISBROKEN;
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} else if (is_null_sha1(sha1)) {
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/*
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* It is so astronomically unlikely
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* that NULL_SHA1 is the SHA-1 of an
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* actual object that we consider its
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* appearance in a loose reference
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* file to be repo corruption
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* (probably due to a software bug).
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*/
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flag |= REF_ISBROKEN;
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}
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}
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if (check_refname_format(refname.buf,
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if (check_refname_format(refname.buf,
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REFNAME_ALLOW_ONELEVEL)) {
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REFNAME_ALLOW_ONELEVEL)) {
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hashclr(sha1);
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hashclr(sha1);
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56
t/t6301-for-each-ref-errors.sh
Executable file
56
t/t6301-for-each-ref-errors.sh
Executable file
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@ -0,0 +1,56 @@
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#!/bin/sh
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test_description='for-each-ref errors for broken refs'
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. ./test-lib.sh
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ZEROS=$_z40
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MISSING=abababababababababababababababababababab
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test_expect_success setup '
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git commit --allow-empty -m "Initial" &&
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git tag testtag &&
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git for-each-ref >full-list &&
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git for-each-ref --format="%(objectname) %(refname)" >brief-list
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'
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test_expect_success 'Broken refs are reported correctly' '
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r=refs/heads/bogus &&
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: >.git/$r &&
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test_when_finished "rm -f .git/$r" &&
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echo "warning: ignoring broken ref $r" >broken-err &&
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git for-each-ref >out 2>err &&
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test_cmp full-list out &&
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test_cmp broken-err err
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'
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test_expect_success 'NULL_SHA1 refs are reported correctly' '
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r=refs/heads/zeros &&
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echo $ZEROS >.git/$r &&
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test_when_finished "rm -f .git/$r" &&
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echo "warning: ignoring broken ref $r" >zeros-err &&
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git for-each-ref >out 2>err &&
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test_cmp full-list out &&
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test_cmp zeros-err err &&
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git for-each-ref --format="%(objectname) %(refname)" >brief-out 2>brief-err &&
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test_cmp brief-list brief-out &&
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test_cmp zeros-err brief-err
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'
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test_expect_success 'Missing objects are reported correctly' '
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r=refs/heads/missing &&
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echo $MISSING >.git/$r &&
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test_when_finished "rm -f .git/$r" &&
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echo "fatal: missing object $MISSING for $r" >missing-err &&
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test_must_fail git for-each-ref 2>err &&
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test_cmp missing-err err &&
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(
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cat brief-list &&
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echo "$MISSING $r"
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) | sort -k 2 >missing-brief-expected &&
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git for-each-ref --format="%(objectname) %(refname)" >brief-out 2>brief-err &&
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test_cmp missing-brief-expected brief-out &&
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test_must_be_empty brief-err
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'
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test_done
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