Git 2.23
[gitweb.git] / vcs-svn / svndump.c
index 0899790a3331d82b72ba3e58fd7ff6ff83b38466..08d136b8cc5ccdeb858eeb60c4ad4b2e42939aab 100644 (file)
@@ -8,7 +8,6 @@
  */
 
 #include "cache.h"
-#include "repo_tree.h"
 #include "fast_export.h"
 #include "line_buffer.h"
 #include "strbuf.h"
 #define NODE_CTX 2     /* node metadata */
 #define INTERNODE_CTX 3        /* between nodes */
 
-#define LENGTH_UNKNOWN (~0)
 #define DATE_RFC2822_LEN 31
 
 static struct line_buffer input = LINE_BUFFER_INIT;
 
 static struct {
-       uint32_t action, propLength, srcRev, type;
-       off_t text_length;
+       uint32_t action, srcRev, type;
+       off_t prop_length, text_length;
        struct strbuf src, dst;
        uint32_t text_delta, prop_delta;
 } node_ctx;
 
 static struct {
        uint32_t revision;
-       unsigned long timestamp;
-       struct strbuf log, author;
+       timestamp_t timestamp;
+       struct strbuf log, author, note;
 } rev_ctx;
 
 static struct {
@@ -61,7 +59,7 @@ static void reset_node_ctx(char *fname)
 {
        node_ctx.type = 0;
        node_ctx.action = NODEACT_UNKNOWN;
-       node_ctx.propLength = LENGTH_UNKNOWN;
+       node_ctx.prop_length = -1;
        node_ctx.text_length = -1;
        strbuf_reset(&node_ctx.src);
        node_ctx.srcRev = 0;
@@ -78,6 +76,7 @@ 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)
@@ -134,13 +133,13 @@ static void handle_property(const struct strbuf *key_buf,
                        die("invalid dump: sets type twice");
                }
                if (!val) {
-                       node_ctx.type = REPO_MODE_BLB;
+                       node_ctx.type = S_IFREG | 0644;
                        return;
                }
                *type_set = 1;
                node_ctx.type = keylen == strlen("svn:executable") ?
-                               REPO_MODE_EXE :
-                               REPO_MODE_LNK;
+                               (S_IFREG | 0755) :
+                               S_IFLNK;
        }
 }
 
@@ -209,7 +208,7 @@ static void read_props(void)
 static void handle_node(void)
 {
        const uint32_t type = node_ctx.type;
-       const int have_props = node_ctx.propLength != LENGTH_UNKNOWN;
+       const int have_props = node_ctx.prop_length != -1;
        const int have_text = node_ctx.text_length != -1;
        /*
         * Old text for this node:
@@ -219,45 +218,45 @@ static void handle_node(void)
         */
        static const char *const empty_blob = "::empty::";
        const char *old_data = NULL;
-       uint32_t old_mode = REPO_MODE_BLB;
+       uint32_t old_mode = S_IFREG | 0644;
 
        if (node_ctx.action == NODEACT_DELETE) {
                if (have_text || have_props || node_ctx.srcRev)
                        die("invalid dump: deletion node has "
                                "copyfrom info, text, or properties");
-               repo_delete(node_ctx.dst.buf);
+               fast_export_delete(node_ctx.dst.buf);
                return;
        }
        if (node_ctx.action == NODEACT_REPLACE) {
-               repo_delete(node_ctx.dst.buf);
+               fast_export_delete(node_ctx.dst.buf);
                node_ctx.action = NODEACT_ADD;
        }
        if (node_ctx.srcRev) {
-               repo_copy(node_ctx.srcRev, node_ctx.src.buf, node_ctx.dst.buf);
+               fast_export_copy(node_ctx.srcRev, node_ctx.src.buf, node_ctx.dst.buf);
                if (node_ctx.action == NODEACT_ADD)
                        node_ctx.action = NODEACT_CHANGE;
        }
-       if (have_text && type == REPO_MODE_DIR)
+       if (have_text && type == S_IFDIR)
                die("invalid dump: directories cannot have text attached");
 
        /*
         * Find old content (old_data) and decide on the new mode.
         */
        if (node_ctx.action == NODEACT_CHANGE && !*node_ctx.dst.buf) {
-               if (type != REPO_MODE_DIR)
+               if (type != S_IFDIR)
                        die("invalid dump: root of tree is not a regular file");
                old_data = NULL;
        } else if (node_ctx.action == NODEACT_CHANGE) {
                uint32_t mode;
-               old_data = repo_read_path(node_ctx.dst.buf, &mode);
-               if (mode == REPO_MODE_DIR && type != REPO_MODE_DIR)
+               old_data = fast_export_read_path(node_ctx.dst.buf, &mode);
+               if (mode == S_IFDIR && type != S_IFDIR)
                        die("invalid dump: cannot modify a directory into a file");
-               if (mode != REPO_MODE_DIR && type == REPO_MODE_DIR)
+               if (mode != S_IFDIR && type == S_IFDIR)
                        die("invalid dump: cannot modify a file into a directory");
                node_ctx.type = mode;
                old_mode = mode;
        } else if (node_ctx.action == NODEACT_ADD) {
-               if (type == REPO_MODE_DIR)
+               if (type == S_IFDIR)
                        old_data = NULL;
                else if (have_text)
                        old_data = empty_blob;
@@ -273,14 +272,14 @@ static void handle_node(void)
        if (have_props) {
                if (!node_ctx.prop_delta)
                        node_ctx.type = type;
-               if (node_ctx.propLength)
+               if (node_ctx.prop_length)
                        read_props();
        }
 
        /*
         * Save the result.
         */
-       if (type == REPO_MODE_DIR)      /* directories are not tracked. */
+       if (type == S_IFDIR)    /* directories are not tracked. */
                return;
        assert(old_data);
        if (old_data == empty_blob)
@@ -300,22 +299,30 @@ static void handle_node(void)
                                node_ctx.text_length, &input);
 }
 
-static void begin_revision(void)
+static void begin_revision(const char *remote_ref)
 {
        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, dump_ctx.uuid.buf, dump_ctx.url.buf,
-               rev_ctx.timestamp);
+               rev_ctx.timestamp, remote_ref);
 }
 
-static void end_revision(void)
+static void end_revision(const char *note_ref)
 {
-       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, note_ref);
+               strbuf_addf(&mark, ":%"PRIu32, rev_ctx.revision);
+               fast_export_note(mark.buf, "inline");
+               fast_export_buf_to_data(&rev_ctx.note);
+               strbuf_release(&mark);
+       }
 }
 
-void svndump_read(const char *url)
+void svndump_read(const char *url, const char *local_ref, const char *notes_ref)
 {
        char *val;
        char *t;
@@ -354,36 +361,40 @@ void svndump_read(const char *url)
                        if (active_ctx == NODE_CTX)
                                handle_node();
                        if (active_ctx == REV_CTX)
-                               begin_revision();
+                               begin_revision(local_ref);
                        if (active_ctx != DUMP_CTX)
-                               end_revision();
+                               end_revision(notes_ref);
                        active_ctx = REV_CTX;
                        reset_rev_ctx(atoi(val));
+                       strbuf_addf(&rev_ctx.note, "%s\n", t);
                        break;
                case sizeof("Node-path"):
-                       if (prefixcmp(t, "Node-"))
+                       if (constcmp(t, "Node-"))
                                continue;
                        if (!constcmp(t + strlen("Node-"), "path")) {
                                if (active_ctx == NODE_CTX)
                                        handle_node();
                                if (active_ctx == REV_CTX)
-                                       begin_revision();
+                                       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;
+                               node_ctx.type = S_IFDIR;
                        else if (!strcmp(val, "file"))
-                               node_ctx.type = REPO_MODE_BLB;
+                               node_ctx.type = S_IFREG | 0644;
                        else
                                fprintf(stderr, "Unknown node-kind: %s\n", val);
                        break;
                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")) {
@@ -402,29 +413,35 @@ void svndump_read(const char *url)
                                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-content-length")) {
+                       if (constcmp(t, "Text") && constcmp(t, "Prop"))
+                               continue;
+                       if (constcmp(t + 4, "-content-length"))
+                               continue;
+                       {
                                char *end;
-                               uintmax_t textlen;
+                               uintmax_t len;
 
-                               textlen = strtoumax(val, &end, 10);
+                               len = strtoumax(val, &end, 10);
                                if (!isdigit(*val) || *end)
                                        die("invalid dump: non-numeric length %s", val);
-                               if (textlen > maximum_signed_value_of_type(off_t))
+                               if (len > maximum_signed_value_of_type(off_t))
                                        die("unrepresentable length in dump: %s", val);
-                               node_ctx.text_length = (off_t) textlen;
+
+                               if (*t == 'T')
+                                       node_ctx.text_length = (off_t) len;
+                               else
+                                       node_ctx.prop_length = (off_t) len;
                                break;
                        }
-                       if (constcmp(t, "Prop-content-length"))
-                               continue;
-                       node_ctx.propLength = atoi(val);
-                       break;
                case sizeof("Text-delta"):
                        if (!constcmp(t, "Text-delta")) {
                                node_ctx.text_delta = !strcmp(val, "true");
@@ -460,25 +477,40 @@ void svndump_read(const char *url)
        if (active_ctx == NODE_CTX)
                handle_node();
        if (active_ctx == REV_CTX)
-               begin_revision();
+               begin_revision(local_ref);
        if (active_ctx != DUMP_CTX)
-               end_revision();
+               end_revision(notes_ref);
 }
 
-int svndump_init(const char *filename)
+static void init(int report_fd)
 {
-       if (buffer_init(&input, filename))
-               return error("cannot open %s: %s", filename, strerror(errno));
-       fast_export_init(REPORT_FILENO);
+       fast_export_init(report_fd);
        strbuf_init(&dump_ctx.uuid, 4096);
        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);
        reset_rev_ctx(0);
        reset_node_ctx(NULL);
+       return;
+}
+
+int svndump_init(const char *filename)
+{
+       if (buffer_init(&input, filename))
+               return error_errno("cannot open %s", filename ? filename : "NULL");
+       init(REPORT_FILENO);
+       return 0;
+}
+
+int svndump_init_fd(int in_fd, int back_fd)
+{
+       if(buffer_fdinit(&input, xdup(in_fd)))
+               return error_errno("cannot open fd %d", in_fd);
+       init(xdup(back_fd));
        return 0;
 }
 
@@ -489,6 +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))
@@ -499,8 +533,6 @@ void svndump_deinit(void)
 
 void svndump_reset(void)
 {
-       fast_export_reset();
-       buffer_reset(&input);
        strbuf_release(&dump_ctx.uuid);
        strbuf_release(&dump_ctx.url);
        strbuf_release(&rev_ctx.log);