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Create a note for every imported commit containing svn metadata

Browse source 
To provide metadata from svn dumps for further processing, e.g.
branch detection, attach a note to each imported commit that stores
additional information.  The notes are currently hard-coded in
refs/notes/svn/revs.  Currently the following lines from the svn dump
are directly accumulated in the note. This can be refined as needed.

 - "Revision-number"
 - "Node-path"
 - "Node-kind"
 - "Node-action"
 - "Node-copyfrom-path"
 - "Node-copyfrom-rev"

Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
Acked-by: David Michael Barr <b@rr-dav.id.au>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Florian Achleitner 2012-09-19 17:21:25 +02:00 committed by Junio C Hamano
parent 3c23953fb2
commit a9a55613cb
3 changed files with 33 additions and 4 deletions
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14
vcs-svn/fast_export.c
View file

@ -3,8 +3,7 @@
* See LICENSE for details.
*/
#include "git-compat-util.h"
#include "strbuf.h"
#include "cache.h"
#include "quote.h"
#include "fast_export.h"
#include "repo_tree.h"
@ -68,6 +67,17 @@ void fast_export_modify(const char *path, uint32_t mode, const char *dataref)
putchar('\n');
}
void fast_export_begin_note(uint32_t revision, const char *author,
const char *log, unsigned long timestamp)
{
size_t loglen = strlen(log);
printf("commit refs/notes/svn/revs\n");
printf("committer %s <%s@%s> %ld +0000\n", author, author, "local", timestamp);
printf("data %"PRIuMAX"\n", (uintmax_t)loglen);
fwrite(log, loglen, 1, stdout);
fputc('\n', stdout);
}
void fast_export_note(const char *committish, const char *dataref)
{
printf("N %s %s\n", dataref, committish);

2
vcs-svn/fast_export.h
View file

@ -10,6 +10,8 @@ void fast_export_deinit(void);
void fast_export_delete(const char *path);
void fast_export_modify(const char *path, uint32_t mode, const char *dataref);
void fast_export_note(const char *committish, const char *dataref);
void fast_export_begin_note(uint32_t revision, const char *author,
const char *log, unsigned long timestamp);
void fast_export_begin_commit(uint32_t revision, const char *author,
const struct strbuf *log, const char *uuid,
const char *url, unsigned long timestamp, const char *local_ref);

21
vcs-svn/svndump.c
View file

@ -48,7 +48,7 @@ static struct {
static struct {
uint32_t revision;
unsigned long timestamp;
struct strbuf log, author;
struct strbuf log, author, note;
} rev_ctx;
static struct {
@ -77,6 +77,7 @@ static void reset_rev_ctx(uint32_t revision)
rev_ctx.timestamp = 0;
strbuf_reset(&rev_ctx.log);
strbuf_reset(&rev_ctx.author);
strbuf_reset(&rev_ctx.note);
}
static void reset_dump_ctx(const char *url)
@ -310,8 +311,15 @@ static void begin_revision(const char *remote_ref)
static void end_revision(void)
{
if (rev_ctx.revision)
struct strbuf mark = STRBUF_INIT;
if (rev_ctx.revision) {
fast_export_end_commit(rev_ctx.revision);
fast_export_begin_note(rev_ctx.revision, "remote-svn",
"Note created by remote-svn.", rev_ctx.timestamp);
strbuf_addf(&mark, ":%"PRIu32, rev_ctx.revision);
fast_export_note(mark.buf, "inline");
fast_export_buf_to_data(&rev_ctx.note);
}
}
void svndump_read(const char *url, const char *local_ref)
@ -358,6 +366,7 @@ void svndump_read(const char *url, const char *local_ref)
end_revision();
active_ctx = REV_CTX;
reset_rev_ctx(atoi(val));
strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
case sizeof("Node-path"):
if (constcmp(t, "Node-"))
@ -369,10 +378,12 @@ void svndump_read(const char *url, const char *local_ref)
begin_revision(local_ref);
active_ctx = NODE_CTX;
reset_node_ctx(val);
strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
}
if (constcmp(t + strlen("Node-"), "kind"))
continue;
strbuf_addf(&rev_ctx.note, "%s\n", t);
if (!strcmp(val, "dir"))
node_ctx.type = REPO_MODE_DIR;
else if (!strcmp(val, "file"))
@ -383,6 +394,7 @@ void svndump_read(const char *url, const char *local_ref)
case sizeof("Node-action"):
if (constcmp(t, "Node-action"))
continue;
strbuf_addf(&rev_ctx.note, "%s\n", t);
if (!strcmp(val, "delete")) {
node_ctx.action = NODEACT_DELETE;
} else if (!strcmp(val, "add")) {
@ -401,11 +413,13 @@ void svndump_read(const char *url, const char *local_ref)
continue;
strbuf_reset(&node_ctx.src);
strbuf_addstr(&node_ctx.src, val);
strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
case sizeof("Node-copyfrom-rev"):
if (constcmp(t, "Node-copyfrom-rev"))
continue;
node_ctx.srcRev = atoi(val);
strbuf_addf(&rev_ctx.note, "%s\n", t);
break;
case sizeof("Text-content-length"):
if (constcmp(t, "Text") && constcmp(t, "Prop"))
@ -475,6 +489,7 @@ static void init(int report_fd)
strbuf_init(&dump_ctx.url, 4096);
strbuf_init(&rev_ctx.log, 4096);
strbuf_init(&rev_ctx.author, 4096);
strbuf_init(&rev_ctx.note, 4096);
strbuf_init(&node_ctx.src, 4096);
strbuf_init(&node_ctx.dst, 4096);
reset_dump_ctx(NULL);
@ -506,6 +521,8 @@ void svndump_deinit(void)
reset_rev_ctx(0);
reset_node_ctx(NULL);
strbuf_release(&rev_ctx.log);
strbuf_release(&rev_ctx.author);
strbuf_release(&rev_ctx.note);
strbuf_release(&node_ctx.src);
strbuf_release(&node_ctx.dst);
if (buffer_deinit(&input))