From: Torsten Bögershausen <tbo...@web.de>

When printing variables which contain a size, today "unsigned long"
is used at many places.
In order to be able to change the type from "unsigned long" into size_t
some day in the future, we need to have a way to print 64 bit variables
on a system that has "unsigned long" defined to be 32 bit, like Win64.

Upcast all those variables into uintmax_t before they are printed.
This is to prepare for a bigger change, when "unsigned long"
will be converted into size_t for variables which may be > 4Gib.

Signed-off-by: Torsten Bögershausen <tbo...@web.de>
---

Changes since V1:
- fixed typos in the commit message, thanks to Eric  Sunshime for careful 
reading

Applying it on pu  gives 1 conflict from the index/repo changes,
Should be easy to fix.

archive-tar.c          |  2 +-
 builtin/cat-file.c     |  4 ++--
 builtin/fast-export.c  |  2 +-
 builtin/index-pack.c   |  9 +++++----
 builtin/ls-tree.c      |  2 +-
 builtin/pack-objects.c | 12 ++++++------
 diff.c                 |  2 +-
 fast-import.c          |  4 ++--
 http-push.c            |  2 +-
 ref-filter.c           |  2 +-
 sha1-file.c            |  6 +++---
 11 files changed, 24 insertions(+), 23 deletions(-)

diff --git a/archive-tar.c b/archive-tar.c
index 7a535cba24..a58e1a8ebf 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -202,7 +202,7 @@ static void prepare_header(struct archiver_args *args,
                           unsigned int mode, unsigned long size)
 {
        xsnprintf(header->mode, sizeof(header->mode), "%07o", mode & 07777);
-       xsnprintf(header->size, sizeof(header->size), "%011lo", S_ISREG(mode) ? 
size : 0);
+       xsnprintf(header->size, sizeof(header->size), "%011"PRIoMAX , 
S_ISREG(mode) ? (uintmax_t)size : (uintmax_t)0);
        xsnprintf(header->mtime, sizeof(header->mtime), "%011lo", (unsigned 
long) args->time);
 
        xsnprintf(header->uid, sizeof(header->uid), "%07o", 0);
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 8d97c84725..05decee33f 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -92,7 +92,7 @@ static int cat_one_file(int opt, const char *exp_type, const 
char *obj_name,
                oi.sizep = &size;
                if (oid_object_info_extended(the_repository, &oid, &oi, flags) 
< 0)
                        die("git cat-file: could not get object info");
-               printf("%lu\n", size);
+               printf("%"PRIuMAX"\n", (uintmax_t)size);
                return 0;
 
        case 'e':
@@ -238,7 +238,7 @@ static void expand_atom(struct strbuf *sb, const char 
*atom, int len,
                if (data->mark_query)
                        data->info.sizep = &data->size;
                else
-                       strbuf_addf(sb, "%lu", data->size);
+                       strbuf_addf(sb, "%"PRIuMAX , (uintmax_t)data->size);
        } else if (is_atom("objectsize:disk", atom, len)) {
                if (data->mark_query)
                        data->info.disk_sizep = &data->disk_size;
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 456797c12a..5790f0d554 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -253,7 +253,7 @@ static void export_blob(const struct object_id *oid)
 
        mark_next_object(object);
 
-       printf("blob\nmark :%"PRIu32"\ndata %lu\n", last_idnum, size);
+       printf("blob\nmark :%"PRIu32"\ndata %"PRIuMAX"\n", last_idnum, 
(uintmax_t)size);
        if (size && fwrite(buf, size, 1, stdout) != 1)
                die_errno("could not write blob '%s'", oid_to_hex(oid));
        printf("\n");
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 2004e25da2..2a8ada432b 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -450,7 +450,8 @@ static void *unpack_entry_data(off_t offset, unsigned long 
size,
        int hdrlen;
 
        if (!is_delta_type(type)) {
-               hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(type), 
size) + 1;
+               hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX,
+                                  type_name(type),(uintmax_t)size) + 1;
                the_hash_algo->init_fn(&c);
                the_hash_algo->update_fn(&c, hdr, hdrlen);
        } else
@@ -1628,10 +1629,10 @@ static void show_pack_info(int stat_only)
                        chain_histogram[obj_stat[i].delta_depth - 1]++;
                if (stat_only)
                        continue;
-               printf("%s %-6s %lu %lu %"PRIuMAX,
+               printf("%s %-6s %"PRIuMAX" %"PRIuMAX" %"PRIuMAX,
                       oid_to_hex(&obj->idx.oid),
-                      type_name(obj->real_type), obj->size,
-                      (unsigned long)(obj[1].idx.offset - obj->idx.offset),
+                      type_name(obj->real_type), (uintmax_t)obj->size,
+                      (uintmax_t)(obj[1].idx.offset - obj->idx.offset),
                       (uintmax_t)obj->idx.offset);
                if (is_delta_type(obj->type)) {
                        struct object_entry *bobj = 
&objects[obj_stat[i].base_object_no];
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index fe3b952cb3..7d581d6463 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -100,7 +100,7 @@ static int show_tree(const struct object_id *oid, struct 
strbuf *base,
                                                  "BAD");
                                else
                                        xsnprintf(size_text, sizeof(size_text),
-                                                 "%lu", size);
+                                                 "%"PRIuMAX, (uintmax_t)size);
                        } else
                                xsnprintf(size_text, sizeof(size_text), "-");
                        printf("%06o %s %s %7s\t", mode, type,
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index c99ee79c31..0d3921e009 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -2095,9 +2095,9 @@ static int try_delta(struct unpacked *trg, struct 
unpacked *src,
                        die(_("object %s cannot be read"),
                            oid_to_hex(&trg_entry->idx.oid));
                if (sz != trg_size)
-                       die(_("object %s inconsistent object length (%lu vs 
%lu)"),
-                           oid_to_hex(&trg_entry->idx.oid), sz,
-                           trg_size);
+                       die(_("object %s inconsistent object length (%"PRIuMAX" 
vs %"PRIuMAX")"),
+                           oid_to_hex(&trg_entry->idx.oid), (uintmax_t)sz,
+                           (uintmax_t)trg_size);
                *mem_usage += sz;
        }
        if (!src->data) {
@@ -2122,9 +2122,9 @@ static int try_delta(struct unpacked *trg, struct 
unpacked *src,
                            oid_to_hex(&src_entry->idx.oid));
                }
                if (sz != src_size)
-                       die(_("object %s inconsistent object length (%lu vs 
%lu)"),
-                           oid_to_hex(&src_entry->idx.oid), sz,
-                           src_size);
+                       die(_("object %s inconsistent object length (%"PRIuMAX" 
vs %"PRIuMAX")"),
+                           oid_to_hex(&src_entry->idx.oid), (uintmax_t)sz,
+                           (uintmax_t)src_size);
                *mem_usage += sz;
        }
        if (!src->index) {
diff --git a/diff.c b/diff.c
index 8647db3d30..88aaed7d49 100644
--- a/diff.c
+++ b/diff.c
@@ -3227,7 +3227,7 @@ static void emit_binary_diff_body(struct diff_options *o,
        }
 
        if (delta && delta_size < deflate_size) {
-               char *s = xstrfmt("%lu", orig_size);
+               char *s = xstrfmt("%"PRIuMAX , (uintmax_t)orig_size);
                emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_HEADER_DELTA,
                                 s, strlen(s), 0);
                free(s);
diff --git a/fast-import.c b/fast-import.c
index 95600c78e0..69886687ce 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -2955,8 +2955,8 @@ static void cat_blob(struct object_entry *oe, struct 
object_id *oid)
                die("Object %s is a %s but a blob was expected.",
                    oid_to_hex(oid), type_name(type));
        strbuf_reset(&line);
-       strbuf_addf(&line, "%s %s %lu\n", oid_to_hex(oid),
-                                               type_name(type), size);
+       strbuf_addf(&line, "%s %s %"PRIuMAX"\n", oid_to_hex(oid),
+                   type_name(type), (uintmax_t)size);
        cat_blob_write(line.buf, line.len);
        strbuf_release(&line);
        cat_blob_write(buf, size);
diff --git a/http-push.c b/http-push.c
index d1f52cbdf6..cd48590912 100644
--- a/http-push.c
+++ b/http-push.c
@@ -365,7 +365,7 @@ static void start_put(struct transfer_request *request)
        git_zstream stream;
 
        unpacked = read_object_file(&request->obj->oid, &type, &len);
-       hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(type), len) + 
1;
+       hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , type_name(type), 
(uintmax_t)len) + 1;
 
        /* Set it up */
        git_deflate_init(&stream, zlib_compression_level);
diff --git a/ref-filter.c b/ref-filter.c
index 0c45ed9d94..aaac48ad14 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -878,7 +878,7 @@ static void grab_common_values(struct atom_value *val, int 
deref, struct expand_
                        v->s = xstrdup(type_name(oi->type));
                else if (!strcmp(name, "objectsize")) {
                        v->value = oi->size;
-                       v->s = xstrfmt("%lu", oi->size);
+                       v->s = xstrfmt("%"PRIuMAX , (uintmax_t)oi->size);
                }
                else if (deref)
                        grab_objectname(name, &oi->oid, v, &used_atom[i]);
diff --git a/sha1-file.c b/sha1-file.c
index dd0b6aa873..4a67e0e759 100644
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -833,7 +833,7 @@ int check_object_signature(const struct object_id *oid, 
void *map,
                return -1;
 
        /* Generate the header */
-       hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(obj_type), 
size) + 1;
+       hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , 
type_name(obj_type), (uintmax_t)size) + 1;
 
        /* Sha1.. */
        the_hash_algo->init_fn(&c);
@@ -1492,7 +1492,7 @@ static void write_object_file_prepare(const void *buf, 
unsigned long len,
        git_hash_ctx c;
 
        /* Generate the header */
-       *hdrlen = xsnprintf(hdr, *hdrlen, "%s %lu", type, len)+1;
+       *hdrlen = xsnprintf(hdr, *hdrlen, "%s %"PRIuMAX , type, 
(uintmax_t)len)+1;
 
        /* Sha1.. */
        the_hash_algo->init_fn(&c);
@@ -1758,7 +1758,7 @@ int force_object_loose(const struct object_id *oid, 
time_t mtime)
        buf = read_object(oid->hash, &type, &len);
        if (!buf)
                return error(_("cannot read sha1_file for %s"), 
oid_to_hex(oid));
-       hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(type), len) + 
1;
+       hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , type_name(type), 
(uintmax_t)len) + 1;
        ret = write_loose_object(oid, hdr, hdrlen, buf, len, mtime);
        free(buf);
 
-- 
2.19.0.271.gfe8321ec05

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