mingw: fix the shortlog --output=<file> test
[gitweb.git] / fast-import.c
index 9fc7093406b1e2085a3b2180a8506bcd6d486e06..59630cee1488bda274bd4f4bd8bf2748d9ab081a 100644 (file)
@@ -166,6 +166,7 @@ Format of STDIN stream:
 #include "quote.h"
 #include "exec_cmd.h"
 #include "dir.h"
+#include "run-command.h"
 
 #define PACK_ID_BITS 16
 #define MAX_PACK_ID ((1<<PACK_ID_BITS)-1)
@@ -282,6 +283,7 @@ struct recent_command {
 /* Configured limits on output */
 static unsigned long max_depth = 10;
 static off_t max_packsize;
+static int unpack_limit = 100;
 static int force_update;
 static int pack_compression_level = Z_DEFAULT_COMPRESSION;
 static int pack_compression_seen;
@@ -329,6 +331,7 @@ static const char *export_marks_file;
 static const char *import_marks_file;
 static int import_marks_file_from_stream;
 static int import_marks_file_ignore_missing;
+static int import_marks_file_done;
 static int relative_marks_paths;
 
 /* Our last blob */
@@ -414,7 +417,7 @@ static void write_crash_report(const char *err)
        struct recent_command *rc;
 
        if (!rpt) {
-               error("can't write crash report %s: %s", loc, strerror(errno));
+               error_errno("can't write crash report %s", loc);
                free(loc);
                return;
        }
@@ -595,6 +598,33 @@ static struct object_entry *insert_object(unsigned char *sha1)
        return e;
 }
 
+static void invalidate_pack_id(unsigned int id)
+{
+       unsigned int h;
+       unsigned long lu;
+       struct tag *t;
+
+       for (h = 0; h < ARRAY_SIZE(object_table); h++) {
+               struct object_entry *e;
+
+               for (e = object_table[h]; e; e = e->next)
+                       if (e->pack_id == id)
+                               e->pack_id = MAX_PACK_ID;
+       }
+
+       for (lu = 0; lu < branch_table_sz; lu++) {
+               struct branch *b;
+
+               for (b = branch_table[lu]; b; b = b->table_next_branch)
+                       if (b->pack_id == id)
+                               b->pack_id = MAX_PACK_ID;
+       }
+
+       for (t = first_tag; t; t = t->next_tag)
+               if (t->pack_id == id)
+                       t->pack_id = MAX_PACK_ID;
+}
+
 static unsigned int hc_str(const char *s, size_t len)
 {
        unsigned int r = 0;
@@ -950,6 +980,23 @@ static void unkeep_all_packs(void)
        }
 }
 
+static int loosen_small_pack(const struct packed_git *p)
+{
+       struct child_process unpack = CHILD_PROCESS_INIT;
+
+       if (lseek(p->pack_fd, 0, SEEK_SET) < 0)
+               die_errno("Failed seeking to start of '%s'", p->pack_name);
+
+       unpack.in = p->pack_fd;
+       unpack.git_cmd = 1;
+       unpack.stdout_to_stderr = 1;
+       argv_array_push(&unpack.args, "unpack-objects");
+       if (!show_stats)
+               argv_array_push(&unpack.args, "-q");
+
+       return run_command(&unpack);
+}
+
 static void end_packfile(void)
 {
        static int running;
@@ -972,6 +1019,14 @@ static void end_packfile(void)
                fixup_pack_header_footer(pack_data->pack_fd, pack_data->sha1,
                                    pack_data->pack_name, object_count,
                                    cur_pack_sha1, pack_size);
+
+               if (object_count <= unpack_limit) {
+                       if (!loosen_small_pack(pack_data)) {
+                               invalidate_pack_id(pack_id);
+                               goto discard_pack;
+                       }
+               }
+
                close(pack_data->pack_fd);
                idx_name = keep_pack(create_index());
 
@@ -1002,6 +1057,7 @@ static void end_packfile(void)
                pack_id++;
        }
        else {
+discard_pack:
                close(pack_data->pack_fd);
                unlink_or_warn(pack_data->pack_name);
        }
@@ -1512,7 +1568,7 @@ static int tree_content_set(
        t = root->tree;
        for (i = 0; i < t->entry_count; i++) {
                e = t->entries[i];
-               if (e->name->str_len == n && !strncmp_icase(p, e->name->str_dat, n)) {
+               if (e->name->str_len == n && !fspathncmp(p, e->name->str_dat, n)) {
                        if (!*slash1) {
                                if (!S_ISDIR(mode)
                                                && e->versions[1].mode == mode
@@ -1602,7 +1658,7 @@ static int tree_content_remove(
        t = root->tree;
        for (i = 0; i < t->entry_count; i++) {
                e = t->entries[i];
-               if (e->name->str_len == n && !strncmp_icase(p, e->name->str_dat, n)) {
+               if (e->name->str_len == n && !fspathncmp(p, e->name->str_dat, n)) {
                        if (*slash1 && !S_ISDIR(e->versions[1].mode))
                                /*
                                 * If p names a file in some subdirectory, and a
@@ -1669,7 +1725,7 @@ static int tree_content_get(
        t = root->tree;
        for (i = 0; i < t->entry_count; i++) {
                e = t->entries[i];
-               if (e->name->str_len == n && !strncmp_icase(p, e->name->str_dat, n)) {
+               if (e->name->str_len == n && !fspathncmp(p, e->name->str_dat, n)) {
                        if (!*slash1)
                                goto found_entry;
                        if (!S_ISDIR(e->versions[1].mode))
@@ -1802,12 +1858,12 @@ static void dump_marks(void)
        static struct lock_file mark_lock;
        FILE *f;
 
-       if (!export_marks_file)
+       if (!export_marks_file || (import_marks_file && !import_marks_file_done))
                return;
 
        if (hold_lock_file_for_update(&mark_lock, export_marks_file, 0) < 0) {
-               failure |= error("Unable to write marks file %s: %s",
-                       export_marks_file, strerror(errno));
+               failure |= error_errno("Unable to write marks file %s",
+                                      export_marks_file);
                return;
        }
 
@@ -1822,8 +1878,8 @@ static void dump_marks(void)
 
        dump_marks_helper(f, 0, marks);
        if (commit_lock_file(&mark_lock)) {
-               failure |= error("Unable to write file %s: %s",
-                       export_marks_file, strerror(errno));
+               failure |= error_errno("Unable to write file %s",
+                                      export_marks_file);
                return;
        }
 }
@@ -1835,7 +1891,7 @@ static void read_marks(void)
        if (f)
                ;
        else if (import_marks_file_ignore_missing && errno == ENOENT)
-               return; /* Marks file does not exist */
+               goto done; /* Marks file does not exist */
        else
                die_errno("cannot read '%s'", import_marks_file);
        while (fgets(line, sizeof(line), f)) {
@@ -1865,6 +1921,8 @@ static void read_marks(void)
                insert_mark(mark, e);
        }
        fclose(f);
+done:
+       import_marks_file_done = 1;
 }
 
 
@@ -3317,6 +3375,7 @@ static void parse_option(const char *option)
 static void git_pack_config(void)
 {
        int indexversion_value;
+       int limit;
        unsigned long packsizelimit_value;
 
        if (!git_config_get_ulong("pack.depth", &max_depth)) {
@@ -3341,6 +3400,11 @@ static void git_pack_config(void)
        if (!git_config_get_ulong("pack.packsizelimit", &packsizelimit_value))
                max_packsize = packsizelimit_value;
 
+       if (!git_config_get_int("fastimport.unpacklimit", &limit))
+               unpack_limit = limit;
+       else if (!git_config_get_int("transfer.unpacklimit", &limit))
+               unpack_limit = limit;
+
        git_config(git_default_config, NULL);
 }