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authorJunio C Hamano <gitster@pobox.com>2014-02-27 22:01:14 (GMT)
committerJunio C Hamano <gitster@pobox.com>2014-02-27 22:01:14 (GMT)
commit156d6ed9221ff38c4cd3bfcfc6778e31c104fd9b (patch)
treed1e4e06d6b9f304bc1ce2deacd555183131d2be1
parent7da5fd6895af9066ad4684e333c57f4086589c2f (diff)
parent6e2068ae48000a2dfdb2044bbb91073c11f6fbff (diff)
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Merge branch 'bk/refresh-missing-ok-in-merge-recursive'
Allow "merge-recursive" to work in an empty (temporary) working tree again when there are renames involved, correcting an old regression in 1.7.7 era. * bk/refresh-missing-ok-in-merge-recursive: merge-recursive.c: tolerate missing files while refreshing index read-cache.c: extend make_cache_entry refresh flag with options read-cache.c: refactor --ignore-missing implementation t3030-merge-recursive: test known breakage with empty work tree
-rw-r--r--cache.h6
-rw-r--r--merge-recursive.c4
-rw-r--r--read-cache.c27
-rwxr-xr-xt/t3030-merge-recursive.sh47
4 files changed, 70 insertions, 14 deletions
diff --git a/cache.h b/cache.h
index 2125159..4007aa8 100644
--- a/cache.h
+++ b/cache.h
@@ -485,7 +485,7 @@ extern int remove_file_from_index(struct index_state *, const char *path);
#define ADD_CACHE_IMPLICIT_DOT 32 /* internal to "git add -u/-A" */
extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
extern int add_file_to_index(struct index_state *, const char *path, int flags);
-extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
+extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, unsigned int refresh_options);
extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b);
extern int index_name_is_other(const struct index_state *, const char *, int);
extern void *read_blob_data_from_index(struct index_state *, const char *, unsigned long *);
@@ -496,6 +496,10 @@ extern void *read_blob_data_from_index(struct index_state *, const char *, unsig
#define CE_MATCH_RACY_IS_DIRTY 02
/* do stat comparison even if CE_SKIP_WORKTREE is true */
#define CE_MATCH_IGNORE_SKIP_WORKTREE 04
+/* ignore non-existent files during stat update */
+#define CE_MATCH_IGNORE_MISSING 0x08
+/* enable stat refresh */
+#define CE_MATCH_REFRESH 0x10
extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
diff --git a/merge-recursive.c b/merge-recursive.c
index 8400a8e..4177092 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -201,7 +201,9 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1,
const char *path, int stage, int refresh, int options)
{
struct cache_entry *ce;
- ce = make_cache_entry(mode, sha1 ? sha1 : null_sha1, path, stage, refresh);
+ ce = make_cache_entry(mode, sha1 ? sha1 : null_sha1, path, stage,
+ (refresh ? (CE_MATCH_REFRESH |
+ CE_MATCH_IGNORE_MISSING) : 0 ));
if (!ce)
return error(_("addinfo_cache failed for path '%s'"), path);
return add_cache_entry(ce, options);
diff --git a/read-cache.c b/read-cache.c
index 3f735f3..71f64f3 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -15,7 +15,8 @@
#include "strbuf.h"
#include "varint.h"
-static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
+static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
+ unsigned int options);
/* Mask for the name length in ce_flags in the on-disk index */
@@ -700,7 +701,7 @@ int add_file_to_index(struct index_state *istate, const char *path, int flags)
struct cache_entry *make_cache_entry(unsigned int mode,
const unsigned char *sha1, const char *path, int stage,
- int refresh)
+ unsigned int refresh_options)
{
int size, len;
struct cache_entry *ce;
@@ -720,10 +721,7 @@ struct cache_entry *make_cache_entry(unsigned int mode,
ce->ce_namelen = len;
ce->ce_mode = create_ce_mode(mode);
- if (refresh)
- return refresh_cache_entry(ce, 0);
-
- return ce;
+ return refresh_cache_entry(ce, refresh_options);
}
int ce_same_name(const struct cache_entry *a, const struct cache_entry *b)
@@ -1033,10 +1031,12 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
struct stat st;
struct cache_entry *updated;
int changed, size;
+ int refresh = options & CE_MATCH_REFRESH;
int ignore_valid = options & CE_MATCH_IGNORE_VALID;
int ignore_skip_worktree = options & CE_MATCH_IGNORE_SKIP_WORKTREE;
+ int ignore_missing = options & CE_MATCH_IGNORE_MISSING;
- if (ce_uptodate(ce))
+ if (!refresh || ce_uptodate(ce))
return ce;
/*
@@ -1054,6 +1054,8 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
}
if (lstat(ce->name, &st) < 0) {
+ if (ignore_missing && errno == ENOENT)
+ return ce;
if (err)
*err = errno;
return NULL;
@@ -1131,7 +1133,9 @@ int refresh_index(struct index_state *istate, unsigned int flags,
int ignore_submodules = (flags & REFRESH_IGNORE_SUBMODULES) != 0;
int first = 1;
int in_porcelain = (flags & REFRESH_IN_PORCELAIN);
- unsigned int options = really ? CE_MATCH_IGNORE_VALID : 0;
+ unsigned int options = (CE_MATCH_REFRESH |
+ (really ? CE_MATCH_IGNORE_VALID : 0) |
+ (not_new ? CE_MATCH_IGNORE_MISSING : 0));
const char *modified_fmt;
const char *deleted_fmt;
const char *typechange_fmt;
@@ -1180,8 +1184,6 @@ int refresh_index(struct index_state *istate, unsigned int flags,
if (!new) {
const char *fmt;
- if (not_new && cache_errno == ENOENT)
- continue;
if (really && cache_errno == EINVAL) {
/* If we are doing --really-refresh that
* means the index is not valid anymore.
@@ -1211,9 +1213,10 @@ int refresh_index(struct index_state *istate, unsigned int flags,
return has_errors;
}
-static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really)
+static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
+ unsigned int options)
{
- return refresh_cache_ent(&the_index, ce, really, NULL, NULL);
+ return refresh_cache_ent(&the_index, ce, options, NULL, NULL);
}
diff --git a/t/t3030-merge-recursive.sh b/t/t3030-merge-recursive.sh
index 2f96100..82e1854 100755
--- a/t/t3030-merge-recursive.sh
+++ b/t/t3030-merge-recursive.sh
@@ -257,6 +257,7 @@ test_expect_success 'setup 8' '
git add e &&
test_tick &&
git commit -m "rename a->e" &&
+ c7=$(git rev-parse --verify HEAD) &&
git checkout rename-ln &&
git mv a e &&
test_ln_s_add e a &&
@@ -517,6 +518,52 @@ test_expect_success 'reset and bind merge' '
'
+test_expect_success 'merge-recursive w/ empty work tree - ours has rename' '
+ (
+ GIT_WORK_TREE="$PWD/ours-has-rename-work" &&
+ export GIT_WORK_TREE &&
+ GIT_INDEX_FILE="$PWD/ours-has-rename-index" &&
+ export GIT_INDEX_FILE &&
+ mkdir "$GIT_WORK_TREE" &&
+ git read-tree -i -m $c7 &&
+ git update-index --ignore-missing --refresh &&
+ git merge-recursive $c0 -- $c7 $c3 &&
+ git ls-files -s >actual-files
+ ) 2>actual-err &&
+ >expected-err &&
+ cat >expected-files <<-EOF &&
+ 100644 $o3 0 b/c
+ 100644 $o0 0 c
+ 100644 $o0 0 d/e
+ 100644 $o0 0 e
+ EOF
+ test_cmp expected-files actual-files &&
+ test_cmp expected-err actual-err
+'
+
+test_expect_success 'merge-recursive w/ empty work tree - theirs has rename' '
+ (
+ GIT_WORK_TREE="$PWD/theirs-has-rename-work" &&
+ export GIT_WORK_TREE &&
+ GIT_INDEX_FILE="$PWD/theirs-has-rename-index" &&
+ export GIT_INDEX_FILE &&
+ mkdir "$GIT_WORK_TREE" &&
+ git read-tree -i -m $c3 &&
+ git update-index --ignore-missing --refresh &&
+ git merge-recursive $c0 -- $c3 $c7 &&
+ git ls-files -s >actual-files
+ ) 2>actual-err &&
+ >expected-err &&
+ cat >expected-files <<-EOF &&
+ 100644 $o3 0 b/c
+ 100644 $o0 0 c
+ 100644 $o0 0 d/e
+ 100644 $o0 0 e
+ EOF
+ test_cmp expected-files actual-files &&
+ test_cmp expected-err actual-err
+'
+
test_expect_success 'merge removes empty directories' '
git reset --hard master &&