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2018-05-02merge: convert empty tree constant to the_hash_algoLibravatar brian m. carlson1-4/+1
To avoid dependency on a particular hash algorithm, convert a use of EMPTY_TREE_SHA1_HEX to use the_hash_algo->empty_tree instead. Since both branches now use oid_to_hex, condense the if statement into a ternary. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02builtin/merge: switch tree functions to use object_idLibravatar brian m. carlson1-7/+7
The read_empty and reset_hard functions are static and their callers have already changed to use struct object_id, so convert them as well. To avoid dependency on the hash algorithm in use, switch from using EMPTY_TREE_SHA1_HEX to using empty_tree_oid_hex. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02builtin/am: convert uses of EMPTY_TREE_SHA1_BIN to the_hash_algoLibravatar brian m. carlson1-4/+4
Convert several uses of EMPTY_TREE_SHA1_BIN to use the_hash_algo and struct object_id instead. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02sha1-file: add functions for hex empty tree and blob OIDsLibravatar brian m. carlson2-0/+15
Oftentimes, we'll want to refer to an empty tree or empty blob by its hex name without having to call oid_to_hex or explicitly refer to the_hash_algo. Add helper functions that format these values into static buffers and return them for easy use. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02builtin/receive-pack: avoid hard-coded constants for push certsLibravatar brian m. carlson1-3/+3
Use the GIT_SHA1_RAWSZ and GIT_SHA1_HEXSZ macros instead of hard-coding the constants 20 and 40. Switch one use of 20 with a format specifier for a hex value to use the hex constant instead, as the original appears to have been a typo. At this point, avoid converting the hard-coded use of SHA-1 to use the_hash_algo. SHA-1, even if not collision resistant, is secure in the context in which it is used here, and the hash algorithm of the repo need not match what is used here. When we adopt a new hash algorithm, we can simply adopt the new algorithm wholesale here, as the nonce is opaque and its length and validity are entirely controlled by the server. Consequently, defer updating this code until that point. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02diff: specify abbreviation size in terms of the_hash_algoLibravatar brian m. carlson1-6/+12
Instead of using hard-coded 40 constants, refer to the_hash_algo for the current hash size. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02upload-pack: replace use of several hard-coded constantsLibravatar brian m. carlson1-9/+9
Update several uses of hard-coded 40-based constants to use either the_hash_algo or GIT_MAX_HEXSZ, as appropriate. Replace a combined use of oid_to_hex and memcpy with oid_to_hex_r, which not only avoids the need for a constant, but is more efficient. Make use of parse_oid_hex to eliminate the need for constants and simplify the code at the same time. Update some comments to no longer refer to SHA-1 as well. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02revision: replace use of hard-coded constantsLibravatar brian m. carlson1-2/+3
Replace two uses of the hard-coded constant 40 with references to the_hash_algo. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02http: eliminate hard-coded constantsLibravatar brian m. carlson1-6/+7
Use the_hash_algo to find the right size for parsing pack names. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02dir: convert struct untracked_cache_dir to object_idLibravatar brian m. carlson3-14/+16
Convert the exclude_sha1 member of struct untracked_cache_dir and rename it to exclude_oid. Eliminate several hard-coded integral constants, and update a function name that referred to SHA-1. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02commit: convert uses of get_sha1_hex to get_oid_hexLibravatar brian m. carlson1-2/+2
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02index-pack: abstract away hash function constantLibravatar brian m. carlson1-1/+2
The code for reading certain pack v2 offsets had a hard-coded 5 representing the number of uint32_t words that we needed to skip over. Specify this value in terms of a value from the_hash_algo. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02pack-redundant: convert linked lists to use struct object_idLibravatar brian m. carlson1-24/+26
Convert struct llist_item and the rest of the linked list code to use struct object_id. Add a use of GIT_MAX_HEXSZ to avoid a dependency on a hard-coded constant. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02Update struct index_state to use struct object_idLibravatar brian m. carlson4-11/+11
Adjust struct index_state to use struct object_id instead of unsigned char [20]. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02split-index: convert struct split_index to object_idLibravatar brian m. carlson5-20/+22
Convert the base_sha1 member of struct split_index to use struct object_id and rename it base_oid. Include cache.h to make the structure visible. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02submodule-config: convert structures to object_idLibravatar brian m. carlson2-36/+37
Convert struct submodule and struct parse_config_parameter to use struct object_id. Adjust the functions which take members of these structures as arguments to also use struct object_id. Include cache.h into submodule-config.h to make struct object_id visible. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02fsck: convert static functions to struct object_idLibravatar brian m. carlson1-9/+11
Convert two static functions to use struct object_id and parse_oid_hex, instead of relying on harcoded 20 and 40-based constants. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02tree-walk: convert get_tree_entry_follow_symlinks to object_idLibravatar brian m. carlson3-11/+11
Since the only caller of this function already uses struct object_id, update get_tree_entry_follow_symlinks to use it in parameters and internally. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02tree-walk: avoid hard-coded 20 constantLibravatar brian m. carlson1-1/+1
Use the_hash_algo to look up the length of our current hash instead of hard-coding the value 20. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02pack-redundant: abstract away hash algorithmLibravatar brian m. carlson1-5/+7
Instead of using hard-coded instances of the constant 20, use the_hash_algo to look up the correct constant. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02pack-objects: abstract away hash algorithmLibravatar brian m. carlson1-14/+16
Instead of using hard-coded instances of the constant 20, use the_hash_algo to look up the correct constant. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02packfile: abstract away hash constant valuesLibravatar brian m. carlson1-29/+37
There are several instances of the constant 20 and 20-based values in the packfile code. Abstract away dependence on SHA-1 by using the values from the_hash_algo instead. Use unsigned values for temporary constants to provide the compiler with more information about what kinds of values it should expect. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02packfile: convert find_pack_entry to object_idLibravatar brian m. carlson3-10/+10
Convert find_pack_entry and the static function fill_pack_entry to take pointers to struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02sha1-file: convert freshen functions to object_idLibravatar brian m. carlson3-20/+20
Convert the various functions for freshening objects and has_loose_object_nonlocal to use struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02packfile: convert has_sha1_pack to object_idLibravatar brian m. carlson7-8/+8
Convert this function to take a pointer to struct object_id and rename it has_object_pack for consistency with has_object_file. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02packfile: remove unused member from struct pack_entryLibravatar brian m. carlson2-2/+0
The sha1 member in struct pack_entry is unused except for one instance in which we store a value in it. Since nobody ever reads this value, don't bother to compute it and remove the member from struct pack_entry. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02Remove unused member in struct object_contextLibravatar brian m. carlson2-2/+0
The tree member of struct object_context is unused except in one place where we write to it. Since there are no users of this member, remove it. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02server-info: remove unused members from struct pack_infoLibravatar brian m. carlson1-7/+2
The head member of struct pack_info is completely unused and the nr_heads member is used only in one place, which is an assignment. This member was last usefully used in 3e15c67c90 (server-info: throw away T computation as well, 2005-12-04). Since this structure member is not useful, remove it. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02cache: add a function to read an object ID from a bufferLibravatar brian m. carlson3-2/+7
In various places throughout the codebase, we need to read data into a struct object_id from a pack or other unsigned char buffer. Add an inline function that does this based on the current hash algorithm in use, and use it in several places. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-12Merge branch 'svn/authors-prog-2' of git://bogomips.org/git-svnLibravatar Junio C Hamano5-12/+57
* 'svn/authors-prog-2' of git://bogomips.org/git-svn: git-svn: allow empty email-address using authors-prog and authors-file git-svn: search --authors-prog in PATH too
2018-04-11Revert "Merge branch 'en/rename-directory-detection'"Libravatar Junio C Hamano9-5197/+115
This reverts commit e4bb62fa1eeee689744b413e29a50b4d1dae6886, reversing changes made to 468165c1d8a442994a825f3684528361727cd8c0. The topic appears to inflict severe regression in renaming merges, even though the promise of it was that it would improve them. We do not yet know which exact change in the topic was wrong, but in the meantime, let's play it safe and revert it out of 'master' before real Git-using projects are harmed. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11The third batch for 2.18Libravatar Junio C Hamano1-0/+30
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11Merge branch 'eb/cred-helper-ignore-sigpipe'Libravatar Junio C Hamano1-0/+3
When credential helper exits very quickly without reading its input, it used to cause Git to die with SIGPIPE, which has been fixed. * eb/cred-helper-ignore-sigpipe: credential: ignore SIGPIPE when writing to credential helpers
2018-04-11Merge branch 'lv/tls-1.3'Libravatar Junio C Hamano2-0/+4
When built with more recent cURL, GIT_SSL_VERSION can now specify "tlsv1.3" as its value. * lv/tls-1.3: http: allow use of TLS 1.3
2018-04-11Merge branch 'pk/test-avoid-pipe-hiding-exit-status'Libravatar Junio C Hamano15-159/+179
Test cleanup. * pk/test-avoid-pipe-hiding-exit-status: test: avoid pipes in git related commands for test
2018-04-11Merge branch 'rs/status-with-removed-submodule'Libravatar Junio C Hamano2-2/+21
"git submodule status" misbehaved on a submodule that has been removed from the working tree. * rs/status-with-removed-submodule: submodule: check for NULL return of get_submodule_ref_store()
2018-04-11Merge branch 'nd/combined-test-helper'Libravatar Junio C Hamano121-542/+684
Small test-helper programs have been consolidated into a single binary. * nd/combined-test-helper: (36 commits) t/helper: merge test-write-cache into test-tool t/helper: merge test-wildmatch into test-tool t/helper: merge test-urlmatch-normalization into test-tool t/helper: merge test-subprocess into test-tool t/helper: merge test-submodule-config into test-tool t/helper: merge test-string-list into test-tool t/helper: merge test-strcmp-offset into test-tool t/helper: merge test-sigchain into test-tool t/helper: merge test-sha1-array into test-tool t/helper: merge test-scrap-cache-tree into test-tool t/helper: merge test-run-command into test-tool t/helper: merge test-revision-walking into test-tool t/helper: merge test-regex into test-tool t/helper: merge test-ref-store into test-tool t/helper: merge test-read-cache into test-tool t/helper: merge test-prio-queue into test-tool t/helper: merge test-path-utils into test-tool t/helper: merge test-online-cpus into test-tool t/helper: merge test-mktemp into test-tool t/helper: merge (unused) test-mergesort into test-tool ...
2018-04-11Merge branch 'sb/packfiles-in-repository'Libravatar Junio C Hamano17-67/+58
Refactoring of the internal global data structure continues. * sb/packfiles-in-repository: packfile: keep prepare_packed_git() private packfile: allow find_pack_entry to handle arbitrary repositories packfile: add repository argument to find_pack_entry packfile: allow reprepare_packed_git to handle arbitrary repositories packfile: allow prepare_packed_git to handle arbitrary repositories packfile: allow prepare_packed_git_one to handle arbitrary repositories packfile: add repository argument to reprepare_packed_git packfile: add repository argument to prepare_packed_git packfile: add repository argument to prepare_packed_git_one packfile: allow install_packed_git to handle arbitrary repositories packfile: allow rearrange_packed_git to handle arbitrary repositories packfile: allow prepare_packed_git_mru to handle arbitrary repositories
2018-04-11Merge branch 'sb/object-store'Libravatar Junio C Hamano39-233/+393
Refactoring the internal global data structure to make it possible to open multiple repositories, work with and then close them. Rerolled by Duy on top of a separate preliminary clean-up topic. The resulting structure of the topics looked very sensible. * sb/object-store: (27 commits) sha1_file: allow sha1_loose_object_info to handle arbitrary repositories sha1_file: allow map_sha1_file to handle arbitrary repositories sha1_file: allow map_sha1_file_1 to handle arbitrary repositories sha1_file: allow open_sha1_file to handle arbitrary repositories sha1_file: allow stat_sha1_file to handle arbitrary repositories sha1_file: allow sha1_file_name to handle arbitrary repositories sha1_file: add repository argument to sha1_loose_object_info sha1_file: add repository argument to map_sha1_file sha1_file: add repository argument to map_sha1_file_1 sha1_file: add repository argument to open_sha1_file sha1_file: add repository argument to stat_sha1_file sha1_file: add repository argument to sha1_file_name sha1_file: allow prepare_alt_odb to handle arbitrary repositories sha1_file: allow link_alt_odb_entries to handle arbitrary repositories sha1_file: add repository argument to prepare_alt_odb sha1_file: add repository argument to link_alt_odb_entries sha1_file: add repository argument to read_info_alternates sha1_file: add repository argument to link_alt_odb_entry sha1_file: add raw_object_store argument to alt_odb_usable pack: move approximate object count to object store ...
2018-04-11Merge branch 'jc/test-must-be-empty'Libravatar Junio C Hamano1-5/+2
Test helper update. * jc/test-must-be-empty: test_must_be_empty: simplify file existence check
2018-04-11Merge branch 'cc/perf-aggregate-sort'Libravatar Junio C Hamano1-5/+65
Perf-test update. * cc/perf-aggregate-sort: perf/aggregate: add --sort-by=regression option perf/aggregate: add display_dir()
2018-04-11Merge branch 'ab/doc-hash-brokenness'Libravatar Junio C Hamano1-8/+32
Doc updates. * ab/doc-hash-brokenness: doc hash-function-transition: clarify what SHAttered means doc hash-function-transition: clarify how older gits die on NewHash
2018-04-11Merge branch 'bc/hash-independent-tests'Libravatar Junio C Hamano9-82/+100
Tests that rely on the exact hardcoded values of object names have been updated in preparation for hash function migration. * bc/hash-independent-tests: t2107: abstract away SHA-1-specific constants t2101: abstract away SHA-1-specific constants t2101: modernize test style t2020: abstract away SHA-1 specific constants t1507: abstract away SHA-1-specific constants t1411: abstract away SHA-1-specific constants t1405: sort reflog entries in a hash-independent way t1300: abstract away SHA-1-specific constants t1304: abstract away SHA-1-specific constants t1011: abstract away SHA-1-specific constants
2018-04-11Merge branch 'ab/drop-contrib-examples'Libravatar Junio C Hamano27-8137/+20
* ab/drop-contrib-examples: Remove contrib/examples/*
2018-04-10The second batch for 2.18Libravatar Junio C Hamano1-0/+25
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-10Merge branch 'ys/bisect-object-id-missing-conversion-fix'Libravatar Junio C Hamano1-2/+2
Code clean-up. * ys/bisect-object-id-missing-conversion-fix: bisect: use oid_to_hex() for converting object_id hashes to hex strings
2018-04-10Merge branch 'yk/filter-branch-non-committish-refs'Libravatar Junio C Hamano2-2/+26
when refs that do not point at committish are given, "git filter-branch" gave a misleading error messages. This has been corrected. * yk/filter-branch-non-committish-refs: filter-branch: fix errors caused by refs that point at non-committish
2018-04-10Merge branch 'nd/trace-with-env'Libravatar Junio C Hamano1-1/+1
Code cleanup. * nd/trace-with-env: run-command: use strbuf_addstr() for adding a string to a strbuf
2018-04-10Merge branch 'nd/parseopt-completion-more'Libravatar Junio C Hamano3-76/+127
The mechanism to use parse-options API to automate the command line completion continues to get extended and polished. * nd/parseopt-completion-more: completion: use __gitcomp_builtin in _git_cherry completion: use __gitcomp_builtin in _git_ls_tree completion: delete option-only completion commands completion: add --option completion for most builtin commands completion: factor out _git_xxx calling code completion: mention the oldest version we need to support git.c: add hidden option --list-parseopt-builtins git.c: move cmd_struct declaration up
2018-04-10Merge branch 'ds/bsearch-hash'Libravatar Junio C Hamano3-57/+42
Code to find the length to uniquely abbreviate object names based on packfile content, which is a relatively recent addtion, has been optimized to use the same fan-out table. * ds/bsearch-hash: sha1_name: use bsearch_pack() in unique_in_pack() sha1_name: use bsearch_pack() for abbreviations packfile: define and use bsearch_pack() sha1_name: convert struct min_abbrev_data to object_id