pack-refs.c doesn't contain much code, and the code it does contain is
closely related to reference handling. Moreover, there is some
duplication between pack_refs() and repack_without_ref(). Therefore,
merge pack-refs.c into refs.c and pack-refs.h into refs.h.
The code duplication will be addressed in future commits.
Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
---
Makefile | 2 -
builtin/clone.c | 1 -
builtin/pack-refs.c | 2 +-
pack-refs.c | 148 ----------------------------------------------------
pack-refs.h | 18 -------
refs.c | 144 ++++++++++++++++++++++++++++++++++++++++++++++++++
refs.h | 14 +++++
7 files changed, 159 insertions(+), 170 deletions(-)
delete mode 100644 pack-refs.c
delete mode 100644 pack-refs.h
diff --git a/Makefile b/Makefile
index 0f931a2..de38539 100644
--- a/Makefile
+++ b/Makefile
@@ -684,7 +684,6 @@ LIB_H += notes-cache.h
LIB_H += notes-merge.h
LIB_H += notes.h
LIB_H += object.h
-LIB_H += pack-refs.h
LIB_H += pack-revindex.h
LIB_H += pack.h
LIB_H += parse-options.h
@@ -817,7 +816,6 @@ LIB_OBJS += notes-cache.o
LIB_OBJS += notes-merge.o
LIB_OBJS += object.o
LIB_OBJS += pack-check.o
-LIB_OBJS += pack-refs.o
LIB_OBJS += pack-revindex.o
LIB_OBJS += pack-write.o
LIB_OBJS += pager.o
diff --git a/builtin/clone.c b/builtin/clone.c
index f9c380e..883cf2a 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -18,7 +18,6 @@
#include "transport.h"
#include "strbuf.h"
#include "dir.h"
-#include "pack-refs.h"
#include "sigchain.h"
#include "branch.h"
#include "remote.h"
diff --git a/builtin/pack-refs.c b/builtin/pack-refs.c
index b5a0f88..b20b1ec 100644
--- a/builtin/pack-refs.c
+++ b/builtin/pack-refs.c
@@ -1,6 +1,6 @@
#include "builtin.h"
#include "parse-options.h"
-#include "pack-refs.h"
+#include "refs.h"
static char const * const pack_refs_usage[] = {
N_("git pack-refs [options]"),
diff --git a/pack-refs.c b/pack-refs.c
deleted file mode 100644
index d840055..0000000
--- a/pack-refs.c
+++ /dev/null
@@ -1,148 +0,0 @@
-#include "cache.h"
-#include "refs.h"
-#include "tag.h"
-#include "pack-refs.h"
-
-struct ref_to_prune {
- struct ref_to_prune *next;
- unsigned char sha1[20];
- char name[FLEX_ARRAY];
-};
-
-struct pack_refs_cb_data {
- unsigned int flags;
- struct ref_to_prune *ref_to_prune;
- FILE *refs_file;
-};
-
-static int do_not_prune(int flags)
-{
- /* If it is already packed or if it is a symref,
- * do not prune it.
- */
- return (flags & (REF_ISSYMREF|REF_ISPACKED));
-}
-
-static int pack_one_ref(const char *path, const unsigned char *sha1,
- int flags, void *cb_data)
-{
- struct pack_refs_cb_data *cb = cb_data;
- struct object *o;
- int is_tag_ref;
-
- /* Do not pack the symbolic refs */
- if ((flags & REF_ISSYMREF))
- return 0;
- is_tag_ref = !prefixcmp(path, "refs/tags/");
-
- /* ALWAYS pack refs that were already packed or are tags */
- if (!(cb->flags & PACK_REFS_ALL) && !is_tag_ref && !(flags &
REF_ISPACKED))
- return 0;
-
- fprintf(cb->refs_file, "%s %s\n", sha1_to_hex(sha1), path);
-
- o = parse_object_or_die(sha1, path);
- if (o->type == OBJ_TAG) {
- o = deref_tag(o, path, 0);
- if (o)
- fprintf(cb->refs_file, "^%s\n",
- sha1_to_hex(o->sha1));
- }
-
- if ((cb->flags & PACK_REFS_PRUNE) && !do_not_prune(flags)) {
- int namelen = strlen(path) + 1;
- struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen);
- hashcpy(n->sha1, sha1);
- strcpy(n->name, path);
- n->next = cb->ref_to_prune;
- cb->ref_to_prune = n;
- }
- return 0;
-}
-
-/*
- * Remove empty parents, but spare refs/ and immediate subdirs.
- * Note: munges *name.
- */
-static void try_remove_empty_parents(char *name)
-{
- char *p, *q;
- int i;
- p = name;
- for (i = 0; i < 2; i++) { /* refs/{heads,tags,...}/ */
- while (*p && *p != '/')
- p++;
- /* tolerate duplicate slashes; see check_refname_format() */
- while (*p == '/')
- p++;
- }
- for (q = p; *q; q++)
- ;
- while (1) {
- while (q > p && *q != '/')
- q--;
- while (q > p && *(q-1) == '/')
- q--;
- if (q == p)
- break;
- *q = '\0';
- if (rmdir(git_path("%s", name)))
- break;
- }
-}
-
-/* make sure nobody touched the ref, and unlink */
-static void prune_ref(struct ref_to_prune *r)
-{
- struct ref_lock *lock = lock_ref_sha1(r->name + 5, r->sha1);
-
- if (lock) {
- unlink_or_warn(git_path("%s", r->name));
- unlock_ref(lock);
- try_remove_empty_parents(r->name);
- }
-}
-
-static void prune_refs(struct ref_to_prune *r)
-{
- while (r) {
- prune_ref(r);
- r = r->next;
- }
-}
-
-static struct lock_file packed;
-
-int pack_refs(unsigned int flags)
-{
- int fd;
- struct pack_refs_cb_data cbdata;
-
- memset(&cbdata, 0, sizeof(cbdata));
- cbdata.flags = flags;
-
- fd = hold_lock_file_for_update(&packed, git_path("packed-refs"),
- LOCK_DIE_ON_ERROR);
- cbdata.refs_file = fdopen(fd, "w");
- if (!cbdata.refs_file)
- die_errno("unable to create ref-pack file structure");
-
- /* perhaps other traits later as well */
- fprintf(cbdata.refs_file, "# pack-refs with: peeled fully-peeled \n");
-
- for_each_ref(pack_one_ref, &cbdata);
- if (ferror(cbdata.refs_file))
- die("failed to write ref-pack file");
- if (fflush(cbdata.refs_file) || fsync(fd) || fclose(cbdata.refs_file))
- die_errno("failed to write ref-pack file");
- /*
- * Since the lock file was fdopen()'ed and then fclose()'ed above,
- * assign -1 to the lock file descriptor so that commit_lock_file()
- * won't try to close() it.
- */
- packed.fd = -1;
- if (commit_lock_file(&packed) < 0)
- die_errno("unable to overwrite old ref-pack file");
- prune_refs(cbdata.ref_to_prune);
- return 0;
-}
diff --git a/pack-refs.h b/pack-refs.h
deleted file mode 100644
index 518acfb..0000000
--- a/pack-refs.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef PACK_REFS_H
-#define PACK_REFS_H
-
-/*
- * Flags for controlling behaviour of pack_refs()
- * PACK_REFS_PRUNE: Prune loose refs after packing
- * PACK_REFS_ALL: Pack _all_ refs, not just tags and already packed refs
- */
-#define PACK_REFS_PRUNE 0x0001
-#define PACK_REFS_ALL 0x0002
-
-/*
- * Write a packed-refs file for the current repository.
- * flags: Combination of the above PACK_REFS_* flags.
- */
-int pack_refs(unsigned int flags);
-
-#endif /* PACK_REFS_H */
diff --git a/refs.c b/refs.c
index 9e3eff2..6c7f92c 100644
--- a/refs.c
+++ b/refs.c
@@ -1981,6 +1981,150 @@ static void write_packed_entry(int fd, char *refname,
unsigned char *sha1,
}
}
+struct ref_to_prune {
+ struct ref_to_prune *next;
+ unsigned char sha1[20];
+ char name[FLEX_ARRAY];
+};
+
+struct pack_refs_cb_data {
+ unsigned int flags;
+ struct ref_to_prune *ref_to_prune;
+ FILE *refs_file;
+};
+
+static int do_not_prune(int flags)
+{
+ /* If it is already packed or if it is a symref,
+ * do not prune it.
+ */
+ return (flags & (REF_ISSYMREF|REF_ISPACKED));
+}
+
+static int pack_one_ref(const char *path, const unsigned char *sha1,
+ int flags, void *cb_data)
+{
+ struct pack_refs_cb_data *cb = cb_data;
+ struct object *o;
+ int is_tag_ref;
+
+ /* Do not pack the symbolic refs */
+ if ((flags & REF_ISSYMREF))
+ return 0;
+ is_tag_ref = !prefixcmp(path, "refs/tags/");
+
+ /* ALWAYS pack refs that were already packed or are tags */
+ if (!(cb->flags & PACK_REFS_ALL) && !is_tag_ref && !(flags &
REF_ISPACKED))
+ return 0;
+
+ fprintf(cb->refs_file, "%s %s\n", sha1_to_hex(sha1), path);
+
+ o = parse_object_or_die(sha1, path);
+ if (o->type == OBJ_TAG) {
+ o = deref_tag(o, path, 0);
+ if (o)
+ fprintf(cb->refs_file, "^%s\n",
+ sha1_to_hex(o->sha1));
+ }
+
+ if ((cb->flags & PACK_REFS_PRUNE) && !do_not_prune(flags)) {
+ int namelen = strlen(path) + 1;
+ struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen);
+ hashcpy(n->sha1, sha1);
+ strcpy(n->name, path);
+ n->next = cb->ref_to_prune;
+ cb->ref_to_prune = n;
+ }
+ return 0;
+}
+
+/*
+ * Remove empty parents, but spare refs/ and immediate subdirs.
+ * Note: munges *name.
+ */
+static void try_remove_empty_parents(char *name)
+{
+ char *p, *q;
+ int i;
+ p = name;
+ for (i = 0; i < 2; i++) { /* refs/{heads,tags,...}/ */
+ while (*p && *p != '/')
+ p++;
+ /* tolerate duplicate slashes; see check_refname_format() */
+ while (*p == '/')
+ p++;
+ }
+ for (q = p; *q; q++)
+ ;
+ while (1) {
+ while (q > p && *q != '/')
+ q--;
+ while (q > p && *(q-1) == '/')
+ q--;
+ if (q == p)
+ break;
+ *q = '\0';
+ if (rmdir(git_path("%s", name)))
+ break;
+ }
+}
+
+/* make sure nobody touched the ref, and unlink */
+static void prune_ref(struct ref_to_prune *r)
+{
+ struct ref_lock *lock = lock_ref_sha1(r->name + 5, r->sha1);
+
+ if (lock) {
+ unlink_or_warn(git_path("%s", r->name));
+ unlock_ref(lock);
+ try_remove_empty_parents(r->name);
+ }
+}
+
+static void prune_refs(struct ref_to_prune *r)
+{
+ while (r) {
+ prune_ref(r);
+ r = r->next;
+ }
+}
+
+static struct lock_file packed;
+
+int pack_refs(unsigned int flags)
+{
+ int fd;
+ struct pack_refs_cb_data cbdata;
+
+ memset(&cbdata, 0, sizeof(cbdata));
+ cbdata.flags = flags;
+
+ fd = hold_lock_file_for_update(&packed, git_path("packed-refs"),
+ LOCK_DIE_ON_ERROR);
+ cbdata.refs_file = fdopen(fd, "w");
+ if (!cbdata.refs_file)
+ die_errno("unable to create ref-pack file structure");
+
+ /* perhaps other traits later as well */
+ fprintf(cbdata.refs_file, "# pack-refs with: peeled fully-peeled \n");
+
+ for_each_ref(pack_one_ref, &cbdata);
+ if (ferror(cbdata.refs_file))
+ die("failed to write ref-pack file");
+ if (fflush(cbdata.refs_file) || fsync(fd) || fclose(cbdata.refs_file))
+ die_errno("failed to write ref-pack file");
+ /*
+ * Since the lock file was fdopen()'ed and then fclose()'ed above,
+ * assign -1 to the lock file descriptor so that commit_lock_file()
+ * won't try to close() it.
+ */
+ packed.fd = -1;
+ if (commit_lock_file(&packed) < 0)
+ die_errno("unable to overwrite old ref-pack file");
+ prune_refs(cbdata.ref_to_prune);
+ return 0;
+}
+
static int repack_ref_fn(struct ref_entry *entry, void *cb_data)
{
int *fd = cb_data;
diff --git a/refs.h b/refs.h
index ac0ff92..8060ed8 100644
--- a/refs.h
+++ b/refs.h
@@ -72,6 +72,20 @@ extern void warn_dangling_symref(FILE *fp, const char
*msg_fmt, const char *refn
*/
extern void add_packed_ref(const char *refname, const unsigned char *sha1);
+/*
+ * Flags for controlling behaviour of pack_refs()
+ * PACK_REFS_PRUNE: Prune loose refs after packing
+ * PACK_REFS_ALL: Pack _all_ refs, not just tags and already packed refs
+ */
+#define PACK_REFS_PRUNE 0x0001
+#define PACK_REFS_ALL 0x0002
+
+/*
+ * Write a packed-refs file for the current repository.
+ * flags: Combination of the above PACK_REFS_* flags.
+ */
+int pack_refs(unsigned int flags);
+
extern int ref_exists(const char *);
/*
--
1.8.2.1
--
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