delta/git.git, branch bc/format-patch-null-from-line

format-patch: check that header line has expected format

2015-12-15T18:03:56+00:00

The format of the "From " header line is very specific to allow
utilities to detect Git-style patches.  Add a test that the patches
created are in the expected format.

Signed-off-by: brian m. carlson 
Signed-off-by: Junio C Hamano

format-patch: add an option to suppress commit hash

2015-12-15T18:03:40+00:00

Oftentimes, patches created by git format-patch will be stored in
version control or compared with diff.  In these cases, two otherwise
identical patches can have different commit hashes, leading to diff
noise.  Teach git format-patch a --zero-commit option that instead
produces an all-zero hash to avoid this diff noise.

Signed-off-by: brian m. carlson 
Signed-off-by: Junio C Hamano

sha1_file.c: introduce a null_oid constant

2015-12-14T21:35:54+00:00

null_oid is the struct object_id equivalent to null_sha1.

Signed-off-by: brian m. carlson 
Signed-off-by: Junio C Hamano

remote: convert functions to struct object_id

2015-11-20T13:02:05+00:00

Convert several unsigned char arrays to use struct object_id instead,
and change hard-coded 40-based constants to use GIT_SHA1_HEXSZ as well.

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King

Remove get_object_hash.

2015-11-20T13:02:05+00:00

Convert all instances of get_object_hash to use an appropriate reference
to the hash member of the oid member of struct object.  This provides no
functional change, as it is essentially a macro substitution.

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King

Convert struct object to object_id

2015-11-20T13:02:05+00:00

struct object is one of the major data structures dealing with object
IDs.  Convert it to use struct object_id instead of an unsigned char
array.  Convert get_object_hash to refer to the new member as well.

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King

Add several uses of get_object_hash.

2015-11-20T13:02:05+00:00

Convert most instances where the sha1 member of struct object is
dereferenced to use get_object_hash.  Most instances that are passed to
functions that have versions taking struct object_id, such as
get_sha1_hex/get_oid_hex, or instances that can be trivially converted
to use struct object_id instead, are not converted.

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King

object: introduce get_object_hash macro.

2015-11-20T13:02:05+00:00

This macro is a temporary change to ease the transition of struct object
to use struct object_id.  It takes an argument of struct object and
returns the object's hash.  Provide this hash next to struct object for
easier conversion.

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King

ref_newer: convert to use struct object_id

2015-11-20T13:02:05+00:00

Convert ref_newer and its caller to use struct object_id instead of
unsigned char *.

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King

push_refs_with_export: convert to struct object_id

2015-11-20T13:02:05+00:00

Signed-off-by: brian m. carlson 
Signed-off-by: Jeff King