SYNOPSIS
--------
-svnadmin dump --incremental REPO | svn-fe [url] | git fast-import
+[verse]
+mkfifo backchannel &&
+svnadmin dump --incremental REPO |
+ svn-fe [url] 3<backchannel |
+ git fast-import --cat-blob-fd=3 3>backchannel
DESCRIPTION
-----------
. ./test-lib.sh
reinit_git () {
+ if ! test_declared_prereq PIPE
+ then
+ echo >&4 "reinit_git: need to declare PIPE prerequisite"
+ return 127
+ fi
rm -fr .git &&
- git init
+ rm -f stream backflow &&
+ git init &&
+ mkfifo stream backflow
+}
+
+try_dump () {
+ input=$1 &&
+ maybe_fail=${2:+test_$2} &&
+
+ {
+ $maybe_fail test-svn-fe "$input" >stream 3<backflow &
+ } &&
+ git fast-import --cat-blob-fd=3 <stream 3>backflow &&
+ wait $!
}
properties () {
>empty
-test_expect_success 'empty dump' '
+test_expect_success 'setup: have pipes?' '
+ rm -f frob &&
+ if mkfifo frob
+ then
+ test_set_prereq PIPE
+ fi
+'
+
+test_expect_success PIPE 'empty dump' '
reinit_git &&
echo "SVN-fs-dump-format-version: 2" >input &&
- test-svn-fe input >stream &&
- git fast-import <stream
+ try_dump input
'
-test_expect_success 'v4 dumps not supported' '
+test_expect_success PIPE 'v4 dumps not supported' '
reinit_git &&
echo "SVN-fs-dump-format-version: 4" >v4.dump &&
- test_must_fail test-svn-fe v4.dump >stream &&
- test_cmp empty stream
+ try_dump v4.dump must_fail
'
-test_expect_failure 'empty revision' '
+test_expect_failure PIPE 'empty revision' '
reinit_git &&
printf "rev <nobody, nobody@local>: %s\n" "" "" >expect &&
cat >emptyrev.dump <<-\EOF &&
Content-length: 0
EOF
- test-svn-fe emptyrev.dump >stream &&
- git fast-import <stream &&
+ try_dump emptyrev.dump &&
git log -p --format="rev <%an, %ae>: %s" HEAD >actual &&
test_cmp expect actual
'
-test_expect_success 'empty properties' '
+test_expect_success PIPE 'empty properties' '
reinit_git &&
printf "rev <nobody, nobody@local>: %s\n" "" "" >expect &&
cat >emptyprop.dump <<-\EOF &&
PROPS-END
EOF
- test-svn-fe emptyprop.dump >stream &&
- git fast-import <stream &&
+ try_dump emptyprop.dump &&
git log -p --format="rev <%an, %ae>: %s" HEAD >actual &&
test_cmp expect actual
'
-test_expect_success 'author name and commit message' '
+test_expect_success PIPE 'author name and commit message' '
reinit_git &&
echo "<author@example.com, author@example.com@local>" >expect.author &&
cat >message <<-\EOF &&
echo &&
cat props
} >log.dump &&
- test-svn-fe log.dump >stream &&
- git fast-import <stream &&
+ try_dump log.dump &&
git log -p --format="%B" HEAD >actual.log &&
git log --format="<%an, %ae>" >actual.author &&
test_cmp message actual.log &&
test_cmp expect.author actual.author
'
-test_expect_success 'unsupported properties are ignored' '
+test_expect_success PIPE 'unsupported properties are ignored' '
reinit_git &&
echo author >expect &&
cat >extraprop.dump <<-\EOF &&
author
PROPS-END
EOF
- test-svn-fe extraprop.dump >stream &&
- git fast-import <stream &&
+ try_dump extraprop.dump &&
git log -p --format=%an HEAD >actual &&
test_cmp expect actual
'
-test_expect_failure 'timestamp and empty file' '
+test_expect_failure PIPE 'timestamp and empty file' '
echo author@example.com >expect.author &&
echo 1999-01-01 >expect.date &&
echo file >expect.files &&
EOF
} >emptyfile.dump &&
- test-svn-fe emptyfile.dump >stream &&
- git fast-import <stream &&
+ try_dump emptyfile.dump &&
git log --format=%an HEAD >actual.author &&
git log --date=short --format=%ad HEAD >actual.date &&
git ls-tree -r --name-only HEAD >actual.files &&
test_cmp empty file
'
-test_expect_success 'directory with files' '
+test_expect_success PIPE 'directory with files' '
reinit_git &&
printf "%s\n" directory/file1 directory/file2 >expect.files &&
echo hi >hi &&
EOF
text_no_props hi
} >directory.dump &&
- test-svn-fe directory.dump >stream &&
- git fast-import <stream &&
+ try_dump directory.dump &&
git ls-tree -r --name-only HEAD >actual.files &&
git checkout HEAD directory &&
test_cmp hi directory/file2
'
-test_expect_success 'node without action' '
+test_expect_success PIPE 'branch name with backslash' '
+ reinit_git &&
+ sort <<-\EOF >expect.branch-files &&
+ trunk/file1
+ trunk/file2
+ "branches/UpdateFOPto094\\/file1"
+ "branches/UpdateFOPto094\\/file2"
+ EOF
+
+ echo hi >hi &&
+ echo hello >hello &&
+ {
+ properties \
+ svn:author author@example.com \
+ svn:date "1999-02-02T00:01:02.000000Z" \
+ svn:log "add directory with some files in it" &&
+ echo PROPS-END
+ } >props.setup &&
+ {
+ properties \
+ svn:author brancher@example.com \
+ svn:date "2007-12-06T21:38:34.000000Z" \
+ svn:log "Updating fop to .94 and adjust fo-stylesheets" &&
+ echo PROPS-END
+ } >props.branch &&
+ {
+ cat <<-EOF &&
+ SVN-fs-dump-format-version: 3
+
+ Revision-number: 1
+ EOF
+ echo Prop-content-length: $(wc -c <props.setup) &&
+ echo Content-length: $(wc -c <props.setup) &&
+ echo &&
+ cat props.setup &&
+ cat <<-\EOF &&
+
+ Node-path: trunk
+ Node-kind: dir
+ Node-action: add
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: branches
+ Node-kind: dir
+ Node-action: add
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: trunk/file1
+ Node-kind: file
+ Node-action: add
+ EOF
+ text_no_props hello &&
+ cat <<-\EOF &&
+ Node-path: trunk/file2
+ Node-kind: file
+ Node-action: add
+ EOF
+ text_no_props hi &&
+ cat <<-\EOF &&
+
+ Revision-number: 2
+ EOF
+ echo Prop-content-length: $(wc -c <props.branch) &&
+ echo Content-length: $(wc -c <props.branch) &&
+ echo &&
+ cat props.branch &&
+ cat <<-\EOF
+
+ Node-path: branches/UpdateFOPto094\
+ Node-kind: dir
+ Node-action: add
+ Node-copyfrom-rev: 1
+ Node-copyfrom-path: trunk
+
+ Node-kind: dir
+ Node-action: add
+ Prop-content-length: 34
+ Content-length: 34
+
+ K 13
+ svn:mergeinfo
+ V 0
+
+ PROPS-END
+ EOF
+ } >branch.dump &&
+ try_dump branch.dump &&
+
+ git ls-tree -r --name-only HEAD |
+ sort >actual.branch-files &&
+ test_cmp expect.branch-files actual.branch-files
+'
+
+test_expect_success PIPE 'node without action' '
+ reinit_git &&
cat >inaction.dump <<-\EOF &&
SVN-fs-dump-format-version: 3
PROPS-END
EOF
- test_must_fail test-svn-fe inaction.dump
+ try_dump inaction.dump must_fail
'
-test_expect_success 'action: add node without text' '
+test_expect_success PIPE 'action: add node without text' '
+ reinit_git &&
cat >textless.dump <<-\EOF &&
SVN-fs-dump-format-version: 3
PROPS-END
EOF
- test_must_fail test-svn-fe textless.dump
+ try_dump textless.dump must_fail
'
-test_expect_failure 'change file mode but keep old content' '
+test_expect_failure PIPE 'change file mode but keep old content' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
PROPS-END
EOF
- test-svn-fe filemode.dump >stream &&
- git fast-import <stream &&
+ try_dump filemode.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
test_cmp hello actual.target
'
-test_expect_success 'change file mode and reiterate content' '
+test_expect_success PIPE 'change file mode and reiterate content' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
EOF
echo "link hello" >expect.blob &&
echo hello >hello &&
- cat >filemode.dump <<-\EOF &&
+ cat >filemode2.dump <<-\EOF &&
SVN-fs-dump-format-version: 3
Revision-number: 1
PROPS-END
link hello
EOF
- test-svn-fe filemode.dump >stream &&
- git fast-import <stream &&
+ try_dump filemode2.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
test_cmp hello actual.target
'
-test_expect_success 'deltas not supported' '
+test_expect_success PIPE 'deltas not supported' '
+ reinit_git &&
{
# (old) h + (inline) ello + (old) \n
printf "SVNQ%b%b%s" "Q\003\006\005\004" "\001Q\0204\001\002" "ello" |
echo PROPS-END &&
cat delta
} >delta.dump &&
- test_must_fail test-svn-fe delta.dump
+ test_must_fail try_dump delta.dump
'
-test_expect_success 'property deltas supported' '
+test_expect_success PIPE 'property deltas supported' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
PROPS-END
EOF
} >propdelta.dump &&
- test-svn-fe propdelta.dump >stream &&
- git fast-import <stream &&
+ try_dump propdelta.dump &&
{
git rev-list HEAD |
git diff-tree --stdin |
test_cmp expect actual
'
-test_expect_success 'properties on /' '
+test_expect_success PIPE 'properties on /' '
reinit_git &&
cat <<-\EOF >expect &&
OBJID
PROPS-END
EOF
- test-svn-fe changeroot.dump >stream &&
- git fast-import <stream &&
+ try_dump changeroot.dump &&
{
git rev-list HEAD |
git diff-tree --root --always --stdin |
test_cmp expect actual
'
-test_expect_success 'deltas for typechange' '
+test_expect_success PIPE 'deltas for typechange' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
PROPS-END
link testing 321
EOF
- test-svn-fe deleteprop.dump >stream &&
- git fast-import <stream &&
+ try_dump deleteprop.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
fi
'
-test_expect_success SVNREPO 't9135/svn.dump' '
- git init simple-git &&
- test-svn-fe "$TEST_DIRECTORY/t9135/svn.dump" >simple.fe &&
+test_expect_success SVNREPO,PIPE 't9135/svn.dump' '
+ mkdir -p simple-git &&
(
cd simple-git &&
- git fast-import <../simple.fe
+ reinit_git &&
+ try_dump "$TEST_DIRECTORY/t9135/svn.dump"
) &&
(
cd simple-svnco &&
#include "line_buffer.h"
#include "repo_tree.h"
#include "string_pool.h"
+#include "strbuf.h"
#define MAX_GITSVN_LINE_LEN 4096
static uint32_t first_commit_done;
+static struct line_buffer report_buffer = LINE_BUFFER_INIT;
-void fast_export_delete(uint32_t depth, uint32_t *path)
+void fast_export_init(int fd)
{
- putchar('D');
- putchar(' ');
- pool_print_seq(depth, path, '/', stdout);
- putchar('\n');
+ if (buffer_fdinit(&report_buffer, fd))
+ die_errno("cannot read from file descriptor %d", fd);
}
-void fast_export_modify(uint32_t depth, uint32_t *path, uint32_t mode,
- uint32_t mark)
+void fast_export_deinit(void)
+{
+ if (buffer_deinit(&report_buffer))
+ die_errno("error closing fast-import feedback stream");
+}
+
+void fast_export_reset(void)
+{
+ buffer_reset(&report_buffer);
+}
+
+void fast_export_delete(uint32_t depth, const uint32_t *path)
+{
+ printf("D \"");
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
+}
+
+static void fast_export_truncate(uint32_t depth, const uint32_t *path, uint32_t mode)
+{
+ fast_export_modify(depth, path, mode, "inline");
+ printf("data 0\n\n");
+}
+
+void fast_export_modify(uint32_t depth, const uint32_t *path, uint32_t mode,
+ const char *dataref)
{
/* Mode must be 100644, 100755, 120000, or 160000. */
- printf("M %06"PRIo32" :%"PRIu32" ", mode, mark);
- pool_print_seq(depth, path, '/', stdout);
- putchar('\n');
+ if (!dataref) {
+ fast_export_truncate(depth, path, mode);
+ return;
+ }
+ printf("M %06"PRIo32" %s \"", mode, dataref);
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
}
static char gitsvnline[MAX_GITSVN_LINE_LEN];
-void fast_export_commit(uint32_t revision, const char *author, char *log,
+void fast_export_begin_commit(uint32_t revision, const char *author, char *log,
const char *uuid, const char *url,
unsigned long timestamp)
{
*gitsvnline = '\0';
}
printf("commit refs/heads/master\n");
+ printf("mark :%"PRIu32"\n", revision);
printf("committer %s <%s@%s> %ld +0000\n",
*author ? author : "nobody",
*author ? author : "nobody",
log, gitsvnline);
if (!first_commit_done) {
if (revision > 1)
- printf("from refs/heads/master^0\n");
+ printf("from :%"PRIu32"\n", revision - 1);
first_commit_done = 1;
}
- repo_diff(revision - 1, revision);
- fputc('\n', stdout);
+}
+void fast_export_end_commit(uint32_t revision)
+{
printf("progress Imported commit %"PRIu32".\n\n", revision);
}
+static void ls_from_rev(uint32_t rev, uint32_t depth, const uint32_t *path)
+{
+ /* ls :5 path/to/old/file */
+ printf("ls :%"PRIu32" \"", rev);
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
+ fflush(stdout);
+}
+
+static void ls_from_active_commit(uint32_t depth, const uint32_t *path)
+{
+ /* ls "path/to/file" */
+ printf("ls \"");
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
+ fflush(stdout);
+}
+
+static const char *get_response_line(void)
+{
+ const char *line = buffer_read_line(&report_buffer);
+ if (line)
+ return line;
+ if (buffer_ferror(&report_buffer))
+ die_errno("error reading from fast-import");
+ die("unexpected end of fast-import feedback");
+}
+
static void die_short_read(struct line_buffer *input)
{
if (buffer_ferror(input))
die("invalid dump: unexpected end of file");
}
-void fast_export_blob(uint32_t mode, uint32_t mark, uint32_t len, struct line_buffer *input)
+void fast_export_data(uint32_t mode, uint32_t len, struct line_buffer *input)
{
if (mode == REPO_MODE_LNK) {
/* svn symlink blobs start with "link " */
if (buffer_skip_bytes(input, 5) != 5)
die_short_read(input);
}
- printf("blob\nmark :%"PRIu32"\ndata %"PRIu32"\n", mark, len);
+ printf("data %"PRIu32"\n", len);
if (buffer_copy_bytes(input, len) != len)
die_short_read(input);
fputc('\n', stdout);
}
+
+static int parse_ls_response(const char *response, uint32_t *mode,
+ struct strbuf *dataref)
+{
+ const char *tab;
+ const char *response_end;
+
+ assert(response);
+ response_end = response + strlen(response);
+
+ if (*response == 'm') { /* Missing. */
+ errno = ENOENT;
+ return -1;
+ }
+
+ /* Mode. */
+ if (response_end - response < strlen("100644") ||
+ response[strlen("100644")] != ' ')
+ die("invalid ls response: missing mode: %s", response);
+ *mode = 0;
+ for (; *response != ' '; response++) {
+ char ch = *response;
+ if (ch < '0' || ch > '7')
+ die("invalid ls response: mode is not octal: %s", response);
+ *mode *= 8;
+ *mode += ch - '0';
+ }
+
+ /* ' blob ' or ' tree ' */
+ if (response_end - response < strlen(" blob ") ||
+ (response[1] != 'b' && response[1] != 't'))
+ die("unexpected ls response: not a tree or blob: %s", response);
+ response += strlen(" blob ");
+
+ /* Dataref. */
+ tab = memchr(response, '\t', response_end - response);
+ if (!tab)
+ die("invalid ls response: missing tab: %s", response);
+ strbuf_add(dataref, response, tab - response);
+ return 0;
+}
+
+int fast_export_ls_rev(uint32_t rev, uint32_t depth, const uint32_t *path,
+ uint32_t *mode, struct strbuf *dataref)
+{
+ ls_from_rev(rev, depth, path);
+ return parse_ls_response(get_response_line(), mode, dataref);
+}
+
+int fast_export_ls(uint32_t depth, const uint32_t *path,
+ uint32_t *mode, struct strbuf *dataref)
+{
+ ls_from_active_commit(depth, path);
+ return parse_ls_response(get_response_line(), mode, dataref);
+}
#ifndef FAST_EXPORT_H_
#define FAST_EXPORT_H_
-#include "line_buffer.h"
+struct strbuf;
+struct line_buffer;
-void fast_export_delete(uint32_t depth, uint32_t *path);
-void fast_export_modify(uint32_t depth, uint32_t *path, uint32_t mode,
- uint32_t mark);
-void fast_export_commit(uint32_t revision, const char *author, char *log,
+void fast_export_init(int fd);
+void fast_export_deinit(void);
+void fast_export_reset(void);
+
+void fast_export_delete(uint32_t depth, const uint32_t *path);
+void fast_export_modify(uint32_t depth, const uint32_t *path,
+ uint32_t mode, const char *dataref);
+void fast_export_begin_commit(uint32_t revision, const char *author, char *log,
const char *uuid, const char *url,
unsigned long timestamp);
-void fast_export_blob(uint32_t mode, uint32_t mark, uint32_t len,
- struct line_buffer *input);
+void fast_export_end_commit(uint32_t revision);
+void fast_export_data(uint32_t mode, uint32_t len, struct line_buffer *input);
+
+/* If there is no such file at that rev, returns -1, errno == ENOENT. */
+int fast_export_ls_rev(uint32_t rev, uint32_t depth, const uint32_t *path,
+ uint32_t *mode_out, struct strbuf *dataref_out);
+int fast_export_ls(uint32_t depth, const uint32_t *path,
+ uint32_t *mode_out, struct strbuf *dataref_out);
#endif
*/
#include "git-compat-util.h"
-
-#include "string_pool.h"
+#include "strbuf.h"
#include "repo_tree.h"
-#include "obj_pool.h"
#include "fast_export.h"
-#include "trp.h"
-
-struct repo_dirent {
- uint32_t name_offset;
- struct trp_node children;
- uint32_t mode;
- uint32_t content_offset;
-};
-
-struct repo_dir {
- struct trp_root entries;
-};
-
-struct repo_commit {
- uint32_t root_dir_offset;
-};
-
-/* Memory pools for commit, dir and dirent */
-obj_pool_gen(commit, struct repo_commit, 4096)
-obj_pool_gen(dir, struct repo_dir, 4096)
-obj_pool_gen(dent, struct repo_dirent, 4096)
-
-static uint32_t active_commit;
-static uint32_t mark;
-
-static int repo_dirent_name_cmp(const void *a, const void *b);
-
-/* Treap for directory entries */
-trp_gen(static, dent_, struct repo_dirent, children, dent, repo_dirent_name_cmp);
-
-uint32_t next_blob_mark(void)
+const char *repo_read_path(const uint32_t *path)
{
- return mark++;
-}
+ int err;
+ uint32_t dummy;
+ static struct strbuf buf = STRBUF_INIT;
-static struct repo_dir *repo_commit_root_dir(struct repo_commit *commit)
-{
- return dir_pointer(commit->root_dir_offset);
-}
-
-static struct repo_dirent *repo_first_dirent(struct repo_dir *dir)
-{
- return dent_first(&dir->entries);
-}
-
-static int repo_dirent_name_cmp(const void *a, const void *b)
-{
- const struct repo_dirent *dent1 = a, *dent2 = b;
- uint32_t a_offset = dent1->name_offset;
- uint32_t b_offset = dent2->name_offset;
- return (a_offset > b_offset) - (a_offset < b_offset);
-}
-
-static int repo_dirent_is_dir(struct repo_dirent *dent)
-{
- return dent != NULL && dent->mode == REPO_MODE_DIR;
-}
-
-static struct repo_dir *repo_dir_from_dirent(struct repo_dirent *dent)
-{
- if (!repo_dirent_is_dir(dent))
+ strbuf_reset(&buf);
+ err = fast_export_ls(REPO_MAX_PATH_DEPTH, path, &dummy, &buf);
+ if (err) {
+ if (errno != ENOENT)
+ die_errno("BUG: unexpected fast_export_ls error");
return NULL;
- return dir_pointer(dent->content_offset);
-}
-
-static struct repo_dir *repo_clone_dir(struct repo_dir *orig_dir)
-{
- uint32_t orig_o, new_o;
- orig_o = dir_offset(orig_dir);
- if (orig_o >= dir_pool.committed)
- return orig_dir;
- new_o = dir_alloc(1);
- orig_dir = dir_pointer(orig_o);
- *dir_pointer(new_o) = *orig_dir;
- return dir_pointer(new_o);
-}
-
-static struct repo_dirent *repo_read_dirent(uint32_t revision,
- const uint32_t *path)
-{
- uint32_t name = 0;
- struct repo_dirent *key = dent_pointer(dent_alloc(1));
- struct repo_dir *dir = NULL;
- struct repo_dirent *dent = NULL;
- dir = repo_commit_root_dir(commit_pointer(revision));
- while (~(name = *path++)) {
- key->name_offset = name;
- dent = dent_search(&dir->entries, key);
- if (dent == NULL || !repo_dirent_is_dir(dent))
- break;
- dir = repo_dir_from_dirent(dent);
- }
- dent_free(1);
- return dent;
-}
-
-static void repo_write_dirent(const uint32_t *path, uint32_t mode,
- uint32_t content_offset, uint32_t del)
-{
- uint32_t name, revision, dir_o = ~0, parent_dir_o = ~0;
- struct repo_dir *dir;
- struct repo_dirent *key;
- struct repo_dirent *dent = NULL;
- revision = active_commit;
- dir = repo_commit_root_dir(commit_pointer(revision));
- dir = repo_clone_dir(dir);
- commit_pointer(revision)->root_dir_offset = dir_offset(dir);
- while (~(name = *path++)) {
- parent_dir_o = dir_offset(dir);
-
- key = dent_pointer(dent_alloc(1));
- key->name_offset = name;
-
- dent = dent_search(&dir->entries, key);
- if (dent == NULL)
- dent = key;
- else
- dent_free(1);
-
- if (dent == key) {
- dent->mode = REPO_MODE_DIR;
- dent->content_offset = 0;
- dent = dent_insert(&dir->entries, dent);
- }
-
- if (dent_offset(dent) < dent_pool.committed) {
- dir_o = repo_dirent_is_dir(dent) ?
- dent->content_offset : ~0;
- dent_remove(&dir->entries, dent);
- dent = dent_pointer(dent_alloc(1));
- dent->name_offset = name;
- dent->mode = REPO_MODE_DIR;
- dent->content_offset = dir_o;
- dent = dent_insert(&dir->entries, dent);
- }
-
- dir = repo_dir_from_dirent(dent);
- dir = repo_clone_dir(dir);
- dent->content_offset = dir_offset(dir);
}
- if (dent == NULL)
- return;
- dent->mode = mode;
- dent->content_offset = content_offset;
- if (del && ~parent_dir_o)
- dent_remove(&dir_pointer(parent_dir_o)->entries, dent);
-}
-
-uint32_t repo_read_path(const uint32_t *path)
-{
- uint32_t content_offset = 0;
- struct repo_dirent *dent = repo_read_dirent(active_commit, path);
- if (dent != NULL)
- content_offset = dent->content_offset;
- return content_offset;
+ return buf.buf;
}
uint32_t repo_read_mode(const uint32_t *path)
{
- struct repo_dirent *dent = repo_read_dirent(active_commit, path);
- if (dent == NULL)
- die("invalid dump: path to be modified is missing");
- return dent->mode;
+ int err;
+ uint32_t result;
+ static struct strbuf dummy = STRBUF_INIT;
+
+ strbuf_reset(&dummy);
+ err = fast_export_ls(REPO_MAX_PATH_DEPTH, path, &result, &dummy);
+ if (err) {
+ if (errno != ENOENT)
+ die_errno("BUG: unexpected fast_export_ls error");
+ /* Treat missing paths as directories. */
+ return REPO_MODE_DIR;
+ }
+ return result;
}
void repo_copy(uint32_t revision, const uint32_t *src, const uint32_t *dst)
{
- uint32_t mode = 0, content_offset = 0;
- struct repo_dirent *src_dent;
- src_dent = repo_read_dirent(revision, src);
- if (src_dent != NULL) {
- mode = src_dent->mode;
- content_offset = src_dent->content_offset;
- repo_write_dirent(dst, mode, content_offset, 0);
+ int err;
+ uint32_t mode;
+ static struct strbuf data = STRBUF_INIT;
+
+ strbuf_reset(&data);
+ err = fast_export_ls_rev(revision, REPO_MAX_PATH_DEPTH, src, &mode, &data);
+ if (err) {
+ if (errno != ENOENT)
+ die_errno("BUG: unexpected fast_export_ls_rev error");
+ fast_export_delete(REPO_MAX_PATH_DEPTH, dst);
+ return;
}
-}
-
-void repo_add(uint32_t *path, uint32_t mode, uint32_t blob_mark)
-{
- repo_write_dirent(path, mode, blob_mark, 0);
+ fast_export_modify(REPO_MAX_PATH_DEPTH, dst, mode, data.buf);
}
void repo_delete(uint32_t *path)
{
- repo_write_dirent(path, 0, 0, 1);
-}
-
-static void repo_git_add_r(uint32_t depth, uint32_t *path, struct repo_dir *dir);
-
-static void repo_git_add(uint32_t depth, uint32_t *path, struct repo_dirent *dent)
-{
- if (repo_dirent_is_dir(dent))
- repo_git_add_r(depth, path, repo_dir_from_dirent(dent));
- else
- fast_export_modify(depth, path,
- dent->mode, dent->content_offset);
-}
-
-static void repo_git_add_r(uint32_t depth, uint32_t *path, struct repo_dir *dir)
-{
- struct repo_dirent *de = repo_first_dirent(dir);
- while (de) {
- path[depth] = de->name_offset;
- repo_git_add(depth + 1, path, de);
- de = dent_next(&dir->entries, de);
- }
-}
-
-static void repo_diff_r(uint32_t depth, uint32_t *path, struct repo_dir *dir1,
- struct repo_dir *dir2)
-{
- struct repo_dirent *de1, *de2;
- de1 = repo_first_dirent(dir1);
- de2 = repo_first_dirent(dir2);
-
- while (de1 && de2) {
- if (de1->name_offset < de2->name_offset) {
- path[depth] = de1->name_offset;
- fast_export_delete(depth + 1, path);
- de1 = dent_next(&dir1->entries, de1);
- continue;
- }
- if (de1->name_offset > de2->name_offset) {
- path[depth] = de2->name_offset;
- repo_git_add(depth + 1, path, de2);
- de2 = dent_next(&dir2->entries, de2);
- continue;
- }
- path[depth] = de1->name_offset;
-
- if (de1->mode == de2->mode &&
- de1->content_offset == de2->content_offset) {
- ; /* No change. */
- } else if (repo_dirent_is_dir(de1) && repo_dirent_is_dir(de2)) {
- repo_diff_r(depth + 1, path,
- repo_dir_from_dirent(de1),
- repo_dir_from_dirent(de2));
- } else if (!repo_dirent_is_dir(de1) && !repo_dirent_is_dir(de2)) {
- repo_git_add(depth + 1, path, de2);
- } else {
- fast_export_delete(depth + 1, path);
- repo_git_add(depth + 1, path, de2);
- }
- de1 = dent_next(&dir1->entries, de1);
- de2 = dent_next(&dir2->entries, de2);
- }
- while (de1) {
- path[depth] = de1->name_offset;
- fast_export_delete(depth + 1, path);
- de1 = dent_next(&dir1->entries, de1);
- }
- while (de2) {
- path[depth] = de2->name_offset;
- repo_git_add(depth + 1, path, de2);
- de2 = dent_next(&dir2->entries, de2);
- }
-}
-
-static uint32_t path_stack[REPO_MAX_PATH_DEPTH];
-
-void repo_diff(uint32_t r1, uint32_t r2)
-{
- repo_diff_r(0,
- path_stack,
- repo_commit_root_dir(commit_pointer(r1)),
- repo_commit_root_dir(commit_pointer(r2)));
-}
-
-void repo_commit(uint32_t revision, const char *author, char *log,
- const char *uuid, const char *url, unsigned long timestamp)
-{
- fast_export_commit(revision, author, log, uuid, url, timestamp);
- dent_commit();
- dir_commit();
- active_commit = commit_alloc(1);
- commit_pointer(active_commit)->root_dir_offset =
- commit_pointer(active_commit - 1)->root_dir_offset;
-}
-
-static void mark_init(void)
-{
- uint32_t i;
- mark = 0;
- for (i = 0; i < dent_pool.size; i++)
- if (!repo_dirent_is_dir(dent_pointer(i)) &&
- dent_pointer(i)->content_offset > mark)
- mark = dent_pointer(i)->content_offset;
- mark++;
-}
-
-void repo_init(void)
-{
- mark_init();
- if (commit_pool.size == 0) {
- /* Create empty tree for commit 0. */
- commit_alloc(1);
- commit_pointer(0)->root_dir_offset = dir_alloc(1);
- dir_pointer(0)->entries.trp_root = ~0;
- dir_commit();
- }
- /* Preallocate next commit, ready for changes. */
- active_commit = commit_alloc(1);
- commit_pointer(active_commit)->root_dir_offset =
- commit_pointer(active_commit - 1)->root_dir_offset;
-}
-
-void repo_reset(void)
-{
- pool_reset();
- commit_reset();
- dir_reset();
- dent_reset();
+ fast_export_delete(REPO_MAX_PATH_DEPTH, path);
}
uint32_t next_blob_mark(void);
void repo_copy(uint32_t revision, const uint32_t *src, const uint32_t *dst);
void repo_add(uint32_t *path, uint32_t mode, uint32_t blob_mark);
-uint32_t repo_read_path(const uint32_t *path);
+const char *repo_read_path(const uint32_t *path);
uint32_t repo_read_mode(const uint32_t *path);
void repo_delete(uint32_t *path);
void repo_commit(uint32_t revision, const char *author,
*/
#include "git-compat-util.h"
+#include "quote.h"
#include "trp.h"
#include "obj_pool.h"
#include "string_pool.h"
return token ? pool_intern(token) : ~0;
}
-void pool_print_seq(uint32_t len, uint32_t *seq, char delim, FILE *stream)
+void pool_print_seq(uint32_t len, const uint32_t *seq, char delim, FILE *stream)
{
uint32_t i;
for (i = 0; i < len && ~seq[i]; i++) {
}
}
+void pool_print_seq_q(uint32_t len, const uint32_t *seq, char delim, FILE *stream)
+{
+ uint32_t i;
+ for (i = 0; i < len && ~seq[i]; i++) {
+ quote_c_style(pool_fetch(seq[i]), NULL, stream, 1);
+ if (i < len - 1 && ~seq[i + 1])
+ fputc(delim, stream);
+ }
+}
+
uint32_t pool_tok_seq(uint32_t sz, uint32_t *seq, const char *delim, char *str)
{
char *context = NULL;
uint32_t pool_intern(const char *key);
const char *pool_fetch(uint32_t entry);
uint32_t pool_tok_r(char *str, const char *delim, char **saveptr);
-void pool_print_seq(uint32_t len, uint32_t *seq, char delim, FILE *stream);
+void pool_print_seq(uint32_t len, const uint32_t *seq, char delim, FILE *stream);
+void pool_print_seq_q(uint32_t len, const uint32_t *seq, char delim, FILE *stream);
uint32_t pool_tok_seq(uint32_t sz, uint32_t *seq, const char *delim, char *str);
void pool_reset(void);
#include "string_pool.h"
#include "strbuf.h"
+#define REPORT_FILENO 3
+
+/*
+ * Compare start of string to literal of equal length;
+ * must be guarded by length test.
+ */
+#define constcmp(s, ref) memcmp(s, ref, sizeof(ref) - 1)
+
#define NODEACT_REPLACE 4
#define NODEACT_DELETE 3
#define NODEACT_ADD 2
#define NODEACT_CHANGE 1
#define NODEACT_UNKNOWN 0
-#define DUMP_CTX 0
-#define REV_CTX 1
-#define NODE_CTX 2
+/* States: */
+#define DUMP_CTX 0 /* dump metadata */
+#define REV_CTX 1 /* revision metadata */
+#define NODE_CTX 2 /* node metadata */
+#define INTERNODE_CTX 3 /* between nodes */
#define LENGTH_UNKNOWN (~0)
#define DATE_RFC2822_LEN 31
struct strbuf uuid, url;
} dump_ctx;
-static struct {
- uint32_t svn_log, svn_author, svn_date, svn_executable, svn_special, uuid,
- revision_number, node_path, node_kind, node_action,
- node_copyfrom_path, node_copyfrom_rev, text_content_length,
- prop_content_length, content_length, svn_fs_dump_format_version,
- /* version 3 format */
- text_delta, prop_delta;
-} keys;
-
static void reset_node_ctx(char *fname)
{
node_ctx.type = 0;
strbuf_reset(&dump_ctx.uuid);
}
-static void init_keys(void)
-{
- keys.svn_log = pool_intern("svn:log");
- keys.svn_author = pool_intern("svn:author");
- keys.svn_date = pool_intern("svn:date");
- keys.svn_executable = pool_intern("svn:executable");
- keys.svn_special = pool_intern("svn:special");
- keys.uuid = pool_intern("UUID");
- keys.revision_number = pool_intern("Revision-number");
- keys.node_path = pool_intern("Node-path");
- keys.node_kind = pool_intern("Node-kind");
- keys.node_action = pool_intern("Node-action");
- keys.node_copyfrom_path = pool_intern("Node-copyfrom-path");
- keys.node_copyfrom_rev = pool_intern("Node-copyfrom-rev");
- keys.text_content_length = pool_intern("Text-content-length");
- keys.prop_content_length = pool_intern("Prop-content-length");
- keys.content_length = pool_intern("Content-length");
- keys.svn_fs_dump_format_version = pool_intern("SVN-fs-dump-format-version");
- /* version 3 format (Subversion 1.1.0) */
- keys.text_delta = pool_intern("Text-delta");
- keys.prop_delta = pool_intern("Prop-delta");
-}
-
-static void handle_property(uint32_t key, const char *val, uint32_t len,
+static void handle_property(const struct strbuf *key_buf,
+ const char *val, uint32_t len,
uint32_t *type_set)
{
- if (key == keys.svn_log) {
+ const char *key = key_buf->buf;
+ size_t keylen = key_buf->len;
+
+ switch (keylen + 1) {
+ case sizeof("svn:log"):
+ if (constcmp(key, "svn:log"))
+ break;
if (!val)
die("invalid dump: unsets svn:log");
strbuf_reset(&rev_ctx.log);
strbuf_add(&rev_ctx.log, val, len);
- } else if (key == keys.svn_author) {
+ break;
+ case sizeof("svn:author"):
+ if (constcmp(key, "svn:author"))
+ break;
strbuf_reset(&rev_ctx.author);
if (val)
strbuf_add(&rev_ctx.author, val, len);
- } else if (key == keys.svn_date) {
+ break;
+ case sizeof("svn:date"):
+ if (constcmp(key, "svn:date"))
+ break;
if (!val)
die("invalid dump: unsets svn:date");
if (parse_date_basic(val, &rev_ctx.timestamp, NULL))
warning("invalid timestamp: %s", val);
- } else if (key == keys.svn_executable || key == keys.svn_special) {
+ break;
+ case sizeof("svn:executable"):
+ case sizeof("svn:special"):
+ if (keylen == strlen("svn:executable") &&
+ constcmp(key, "svn:executable"))
+ break;
+ if (keylen == strlen("svn:special") &&
+ constcmp(key, "svn:special"))
+ break;
if (*type_set) {
if (!val)
return;
return;
}
*type_set = 1;
- node_ctx.type = key == keys.svn_executable ?
+ node_ctx.type = keylen == strlen("svn:executable") ?
REPO_MODE_EXE :
REPO_MODE_LNK;
}
static void read_props(void)
{
- uint32_t key = ~0;
+ static struct strbuf key = STRBUF_INIT;
const char *t;
/*
* NEEDSWORK: to support simple mode changes like
switch (type) {
case 'K':
- key = pool_intern(val);
- continue;
case 'D':
- key = pool_intern(val);
+ strbuf_reset(&key);
+ if (val)
+ strbuf_add(&key, val, len);
+ if (type == 'K')
+ continue;
+ assert(type == 'D');
val = NULL;
len = 0;
/* fall through */
case 'V':
- handle_property(key, val, len, &type_set);
- key = ~0;
+ handle_property(&key, val, len, &type_set);
+ strbuf_reset(&key);
continue;
default:
die("invalid property line: %s\n", t);
static void handle_node(void)
{
- uint32_t mark = 0;
const uint32_t type = node_ctx.type;
const int have_props = node_ctx.propLength != LENGTH_UNKNOWN;
const int have_text = node_ctx.textLength != LENGTH_UNKNOWN;
+ /*
+ * Old text for this node:
+ * NULL - directory or bug
+ * empty_blob - empty
+ * "<dataref>" - data retrievable from fast-import
+ */
+ static const char *const empty_blob = "::empty::";
+ const char *old_data = NULL;
if (node_ctx.text_delta)
die("text deltas not supported");
- if (have_text)
- mark = next_blob_mark();
+
if (node_ctx.action == NODEACT_DELETE) {
if (have_text || have_props || node_ctx.srcRev)
die("invalid dump: deletion node has "
die("invalid dump: directories cannot have text attached");
/*
- * Decide on the new content (mark) and mode (node_ctx.type).
+ * Find old content (old_data) and decide on the new mode.
*/
if (node_ctx.action == NODEACT_CHANGE && !~*node_ctx.dst) {
if (type != REPO_MODE_DIR)
die("invalid dump: root of tree is not a regular file");
+ old_data = NULL;
} else if (node_ctx.action == NODEACT_CHANGE) {
uint32_t mode;
- if (!have_text)
- mark = repo_read_path(node_ctx.dst);
+ old_data = repo_read_path(node_ctx.dst);
mode = repo_read_mode(node_ctx.dst);
if (mode == REPO_MODE_DIR && type != REPO_MODE_DIR)
die("invalid dump: cannot modify a directory into a file");
die("invalid dump: cannot modify a file into a directory");
node_ctx.type = mode;
} else if (node_ctx.action == NODEACT_ADD) {
- if (!have_text && type != REPO_MODE_DIR)
+ if (type == REPO_MODE_DIR)
+ old_data = NULL;
+ else if (have_text)
+ old_data = empty_blob;
+ else
die("invalid dump: adds node without text");
} else {
die("invalid dump: Node-path block lacks Node-action");
/*
* Save the result.
*/
- repo_add(node_ctx.dst, node_ctx.type, mark);
- if (have_text)
- fast_export_blob(node_ctx.type, mark,
- node_ctx.textLength, &input);
+ if (type == REPO_MODE_DIR) /* directories are not tracked. */
+ return;
+ assert(old_data);
+ if (old_data == empty_blob)
+ /* For the fast_export_* functions, NULL means empty. */
+ old_data = NULL;
+ if (!have_text) {
+ fast_export_modify(REPO_MAX_PATH_DEPTH, node_ctx.dst,
+ node_ctx.type, old_data);
+ return;
+ }
+ fast_export_modify(REPO_MAX_PATH_DEPTH, node_ctx.dst,
+ node_ctx.type, "inline");
+ fast_export_data(node_ctx.type, node_ctx.textLength, &input);
+}
+
+static void begin_revision(void)
+{
+ if (!rev_ctx.revision) /* revision 0 gets no git commit. */
+ return;
+ fast_export_begin_commit(rev_ctx.revision, rev_ctx.author.buf,
+ rev_ctx.log.buf, dump_ctx.uuid.buf, dump_ctx.url.buf,
+ rev_ctx.timestamp);
}
-static void handle_revision(void)
+static void end_revision(void)
{
if (rev_ctx.revision)
- repo_commit(rev_ctx.revision, rev_ctx.author.buf,
- rev_ctx.log.buf, dump_ctx.uuid.buf, dump_ctx.url.buf,
- rev_ctx.timestamp);
+ fast_export_end_commit(rev_ctx.revision);
}
void svndump_read(const char *url)
char *t;
uint32_t active_ctx = DUMP_CTX;
uint32_t len;
- uint32_t key;
reset_dump_ctx(url);
while ((t = buffer_read_line(&input))) {
val = strstr(t, ": ");
if (!val)
continue;
- *val++ = '\0';
- *val++ = '\0';
- key = pool_intern(t);
+ val += 2;
- if (key == keys.svn_fs_dump_format_version) {
+ /* strlen(key) + 1 */
+ switch (val - t - 1) {
+ case sizeof("SVN-fs-dump-format-version"):
+ if (constcmp(t, "SVN-fs-dump-format-version"))
+ continue;
dump_ctx.version = atoi(val);
if (dump_ctx.version > 3)
die("expected svn dump format version <= 3, found %"PRIu32,
dump_ctx.version);
- } else if (key == keys.uuid) {
+ break;
+ case sizeof("UUID"):
+ if (constcmp(t, "UUID"))
+ continue;
strbuf_reset(&dump_ctx.uuid);
strbuf_addstr(&dump_ctx.uuid, val);
- } else if (key == keys.revision_number) {
+ break;
+ case sizeof("Revision-number"):
+ if (constcmp(t, "Revision-number"))
+ continue;
if (active_ctx == NODE_CTX)
handle_node();
+ if (active_ctx == REV_CTX)
+ begin_revision();
if (active_ctx != DUMP_CTX)
- handle_revision();
+ end_revision();
active_ctx = REV_CTX;
reset_rev_ctx(atoi(val));
- } else if (key == keys.node_path) {
- if (active_ctx == NODE_CTX)
- handle_node();
- active_ctx = NODE_CTX;
- reset_node_ctx(val);
- } else if (key == keys.node_kind) {
+ break;
+ case sizeof("Node-path"):
+ if (prefixcmp(t, "Node-"))
+ continue;
+ if (!constcmp(t + strlen("Node-"), "path")) {
+ if (active_ctx == NODE_CTX)
+ handle_node();
+ if (active_ctx == REV_CTX)
+ begin_revision();
+ active_ctx = NODE_CTX;
+ reset_node_ctx(val);
+ break;
+ }
+ if (constcmp(t + strlen("Node-"), "kind"))
+ continue;
if (!strcmp(val, "dir"))
node_ctx.type = REPO_MODE_DIR;
else if (!strcmp(val, "file"))
node_ctx.type = REPO_MODE_BLB;
else
fprintf(stderr, "Unknown node-kind: %s\n", val);
- } else if (key == keys.node_action) {
+ break;
+ case sizeof("Node-action"):
+ if (constcmp(t, "Node-action"))
+ continue;
if (!strcmp(val, "delete")) {
node_ctx.action = NODEACT_DELETE;
} else if (!strcmp(val, "add")) {
fprintf(stderr, "Unknown node-action: %s\n", val);
node_ctx.action = NODEACT_UNKNOWN;
}
- } else if (key == keys.node_copyfrom_path) {
+ break;
+ case sizeof("Node-copyfrom-path"):
+ if (constcmp(t, "Node-copyfrom-path"))
+ continue;
pool_tok_seq(REPO_MAX_PATH_DEPTH, node_ctx.src, "/", val);
- } else if (key == keys.node_copyfrom_rev) {
+ break;
+ case sizeof("Node-copyfrom-rev"):
+ if (constcmp(t, "Node-copyfrom-rev"))
+ continue;
node_ctx.srcRev = atoi(val);
- } else if (key == keys.text_content_length) {
- node_ctx.textLength = atoi(val);
- } else if (key == keys.prop_content_length) {
+ break;
+ case sizeof("Text-content-length"):
+ if (!constcmp(t, "Text-content-length")) {
+ node_ctx.textLength = atoi(val);
+ break;
+ }
+ if (constcmp(t, "Prop-content-length"))
+ continue;
node_ctx.propLength = atoi(val);
- } else if (key == keys.text_delta) {
- node_ctx.text_delta = !strcmp(val, "true");
- } else if (key == keys.prop_delta) {
+ break;
+ case sizeof("Text-delta"):
+ if (!constcmp(t, "Text-delta")) {
+ node_ctx.text_delta = !strcmp(val, "true");
+ break;
+ }
+ if (constcmp(t, "Prop-delta"))
+ continue;
node_ctx.prop_delta = !strcmp(val, "true");
- } else if (key == keys.content_length) {
+ break;
+ case sizeof("Content-length"):
+ if (constcmp(t, "Content-length"))
+ continue;
len = atoi(val);
t = buffer_read_line(&input);
if (!t)
read_props();
} else if (active_ctx == NODE_CTX) {
handle_node();
- active_ctx = REV_CTX;
+ active_ctx = INTERNODE_CTX;
} else {
fprintf(stderr, "Unexpected content length header: %"PRIu32"\n", len);
if (buffer_skip_bytes(&input, len) != len)
die_short_read();
if (active_ctx == NODE_CTX)
handle_node();
+ if (active_ctx == REV_CTX)
+ begin_revision();
if (active_ctx != DUMP_CTX)
- handle_revision();
+ end_revision();
}
int svndump_init(const char *filename)
{
if (buffer_init(&input, filename))
return error("cannot open %s: %s", filename, strerror(errno));
- repo_init();
+ fast_export_init(REPORT_FILENO);
strbuf_init(&dump_ctx.uuid, 4096);
strbuf_init(&dump_ctx.url, 4096);
strbuf_init(&rev_ctx.log, 4096);
reset_dump_ctx(NULL);
reset_rev_ctx(0);
reset_node_ctx(NULL);
- init_keys();
return 0;
}
void svndump_deinit(void)
{
- repo_reset();
+ fast_export_deinit();
reset_dump_ctx(NULL);
reset_rev_ctx(0);
reset_node_ctx(NULL);
void svndump_reset(void)
{
+ fast_export_reset();
buffer_reset(&input);
- repo_reset();
strbuf_release(&dump_ctx.uuid);
strbuf_release(&dump_ctx.url);
strbuf_release(&rev_ctx.log);
projects / ~andy / git / commitdiff