gitweb: Make blame and snapshot a feature.

diff --git a/http-fetch.c b/http-fetch.c
index cc7bd1f3676d58f62bb0c1e5d029d9273aecf2c0..7f07d2a967fdecb497344817700962e9e213d3dd 100644 (file)
--- a/http-fetch.c
+++ b/http-fetch.c
@@ -36,21 +36,23 @@ enum XML_Status {
 #define PREV_BUF_SIZE 4096
 #define RANGE_HEADER_SIZE 30
 
+static int commits_on_stdin;
+
 static int got_alternates = -1;
-static int corrupt_object_found = 0;
+static int corrupt_object_found;
 
 static struct curl_slist *no_pragma_header;
 
 struct alt_base
 {
-       char *base;
+       const char *base;
        int path_len;
        int got_indices;
        struct packed_git *packs;
        struct alt_base *next;
 };
 
-static struct alt_base *alt = NULL;
+static struct alt_base *alt;
 
 enum object_request_state {
        WAITING,
@@ -81,7 +83,7 @@ struct object_request
 };
 
 struct alternates_request {
-       char *base;
+       const char *base;
        char *url;
        struct buffer *buffer;
        struct active_request_slot *slot;
@@ -112,7 +114,7 @@ struct remote_ls_ctx
 };
 #endif
 
-static struct object_request *object_queue_head = NULL;
+static struct object_request *object_queue_head;
 
 static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
                               void *data)
@@ -123,7 +125,7 @@ static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
        struct object_request *obj_req = (struct object_request *)data;
        do {
                ssize_t retval = write(obj_req->local,
-                                      ptr + posn, size - posn);
+                                      (char *) ptr + posn, size - posn);
                if (retval < 0)
                        return posn;
                posn += retval;
@@ -142,7 +144,7 @@ static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
        return size;
 }
 
-static void fetch_alternates(char *base);
+static void fetch_alternates(const char *base);
 
 static void process_object_response(void *callback_data);
 
@@ -399,6 +401,7 @@ void prefetch(unsigned char *sha1)
        snprintf(newreq->filename, sizeof(newreq->filename), "%s", filename);
        snprintf(newreq->tmpfile, sizeof(newreq->tmpfile),
                 "%s.temp", filename);
+       newreq->slot = NULL;
        newreq->next = NULL;
 
        if (object_queue_head == NULL) {
@@ -489,7 +492,7 @@ static int setup_index(struct alt_base *repo, unsigned char *sha1)
 {
        struct packed_git *new_pack;
        if (has_pack_file(sha1))
-               return 0; // don't list this as something we can get
+               return 0; /* don't list this as something we can get */
 
        if (fetch_index(repo, sha1))
                return -1;
@@ -506,7 +509,7 @@ static void process_alternates_response(void *callback_data)
                (struct alternates_request *)callback_data;
        struct active_request_slot *slot = alt_req->slot;
        struct alt_base *tail = alt;
-       char *base = alt_req->base;
+       const char *base = alt_req->base;
        static const char null_byte = '\0';
        char *data;
        int i = 0;
@@ -569,7 +572,7 @@ static void process_alternates_response(void *callback_data)
                                                 base[serverlen - 1] != '/');
                                        i += 3;
                                }
-                               // If the server got removed, give up.
+                               /* If the server got removed, give up. */
                                okay = strchr(base, ':') - base + 3 <
                                        serverlen;
                        } else if (alt_req->http_specific) {
@@ -580,13 +583,11 @@ static void process_alternates_response(void *callback_data)
                                        okay = 1;
                                }
                        }
-                       // skip 'objects' at end
+                       /* skip 'objects' at end */
                        if (okay) {
                                target = xmalloc(serverlen + posn - i - 6);
-                               strncpy(target, base, serverlen);
-                               strncpy(target + serverlen, data + i,
-                                       posn - i - 7);
-                               target[serverlen + posn - i - 7] = '\0';
+                               strlcpy(target, base, serverlen);
+                               strlcpy(target + serverlen, data + i, posn - i - 6);
                                if (get_verbosely)
                                        fprintf(stderr,
                                                "Also look at %s\n", target);
@@ -613,7 +614,7 @@ static void process_alternates_response(void *callback_data)
        got_alternates = 1;
 }
 
-static void fetch_alternates(char *base)
+static void fetch_alternates(const char *base)
 {
        struct buffer buffer;
        char *url;
@@ -727,8 +728,8 @@ xml_cdata(void *userData, const XML_Char *s, int len)
        struct xml_ctx *ctx = (struct xml_ctx *)userData;
        if (ctx->cdata)
                free(ctx->cdata);
-       ctx->cdata = xcalloc(len+1, 1);
-       strncpy(ctx->cdata, s, len);
+       ctx->cdata = xmalloc(len + 1);
+       strlcpy(ctx->cdata, s, len + 1);
 }
 
 static int remote_ls(struct alt_base *repo, const char *path, int flags,
@@ -869,7 +870,7 @@ static void process_ls_pack(struct remote_ls_ctx *ls)
 
        if (strlen(ls->dentry_name) == 63 &&
            !strncmp(ls->dentry_name, "objects/pack/pack-", 18) &&
-           !strncmp(ls->dentry_name+58, ".pack", 5)) {
+           has_extension(ls->dentry_name, ".pack")) {
                get_sha1_hex(ls->dentry_name + 18, sha1);
                setup_index(ls->repo, sha1);
        }
@@ -1137,13 +1138,14 @@ int fetch(unsigned char *sha1)
 
 static inline int needs_quote(int ch)
 {
-       switch (ch) {
-       case '/': case '-': case '.':
-       case 'A'...'Z': case 'a'...'z': case '0'...'9':
+       if (((ch >= 'A') && (ch <= 'Z'))
+                       || ((ch >= 'a') && (ch <= 'z'))
+                       || ((ch >= '0') && (ch <= '9'))
+                       || (ch == '/')
+                       || (ch == '-')
+                       || (ch == '.'))
                return 0;
-       default:
-               return 1;
-       }
+       return 1;
 }
 
 static inline int hex(int v)
@@ -1185,7 +1187,7 @@ int fetch_ref(char *ref, unsigned char *sha1)
         char *url;
         char hex[42];
         struct buffer buffer;
-       char *base = alt->base;
+       const char *base = alt->base;
        struct active_request_slot *slot;
        struct slot_results results;
         buffer.size = 41;
@@ -1214,14 +1216,17 @@ int fetch_ref(char *ref, unsigned char *sha1)
         return 0;
 }
 
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
 {
-       char *commit_id;
-       char *url;
+       int commits;
+       const char **write_ref = NULL;
+       char **commit_id;
+       const char *url;
        char *path;
        int arg = 1;
        int rc = 0;
 
+       setup_ident();
        setup_git_directory();
        git_config(git_default_config);
 
@@ -1237,20 +1242,26 @@ int main(int argc, char **argv)
                } else if (argv[arg][1] == 'v') {
                        get_verbosely = 1;
                } else if (argv[arg][1] == 'w') {
-                       write_ref = argv[arg + 1];
+                       write_ref = &argv[arg + 1];
                        arg++;
                } else if (!strcmp(argv[arg], "--recover")) {
                        get_recover = 1;
+               } else if (!strcmp(argv[arg], "--stdin")) {
+                       commits_on_stdin = 1;
                }
                arg++;
        }
-       if (argc < arg + 2) {
-               usage("git-http-fetch [-c] [-t] [-a] [-d] [-v] [--recover] [-w ref] commit-id url");
+       if (argc < arg + 2 - commits_on_stdin) {
+               usage("git-http-fetch [-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin] commit-id url");
                return 1;
        }
-       commit_id = argv[arg];
-       url = argv[arg + 1];
-       write_ref_log_details = url;
+       if (commits_on_stdin) {
+               commits = pull_targets_stdin(&commit_id, &write_ref);
+       } else {
+               commit_id = (char **) &argv[arg++];
+               commits = 1;
+       }
+       url = argv[arg];
 
        http_init();
 
@@ -1268,12 +1279,15 @@ int main(int argc, char **argv)
                        alt->path_len = strlen(path);
        }
 
-       if (pull(commit_id))
+       if (pull(commits, commit_id, write_ref, url))
                rc = 1;
 
+       http_cleanup();
+
        curl_slist_free_all(no_pragma_header);
 
-       http_cleanup();
+       if (commits_on_stdin)
+               pull_targets_free(commits, commit_id, write_ref);
 
        if (corrupt_object_found) {
                fprintf(stderr,