git/builtin/fetch.c, branch v2.25.2

partial-clone: avoid fetching when looking for objects

2020-02-22T17:23:08Z

When using partial clone, find_non_local_tags() in builtin/fetch.c checks each remote tag to see if its object also exists locally. There is no expectation that the object exist locally, but this function nevertheless triggers a lazy fetch if the object does not exist. This can be extremely expensive when asking for a commit, as we are completely removed from the context of the non-existent object and thus supply no "haves" in the request. 6462d5eb9a (fetch: remove fetch_if_missing=0, 2019-11-05) removed a global variable that prevented these fetches in favor of a bitflag. However, some object existence checks were not updated to use this flag. Update find_non_local_tags() to use OBJECT_INFO_SKIP_FETCH_OBJECT in addition to OBJECT_INFO_QUICK. The _QUICK option only prevents repreparing the pack-file structures. We need to be extremely careful about supplying _SKIP_FETCH_OBJECT when we expect an object to not exist due to updated refs. This resolves a broken test in t5616-partial-clone.sh. Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano

Merge branch 'ds/commit-graph-set-size-mult'

2020-01-06T22:17:51Z

The code to write split commit-graph file(s) upon fetching computed bogus value for the parameter used in splitting the resulting files, which has been corrected. * ds/commit-graph-set-size-mult: commit-graph: prefer default size_mult when given zero

commit-graph: prefer default size_mult when given zero

2020-01-02T21:46:34Z

In 50f26bd ("fetch: add fetch.writeCommitGraph config setting", 2019-09-02), the fetch builtin added the capability to write a commit-graph using the "--split" feature. This feature creates multiple commit-graph files, and those can merge based on a set of "split options" including a size multiple. The default size multiple is 2, which intends to provide a log_2 N depth of the commit-graph chain where N is the number of commits. However, I noticed during dogfooding that my commit-graph chains were becoming quite large when left only to builds by 'git fetch'. It turns out that in split_graph_merge_strategy(), we default the size_mult variable to 2 except we override it with the context's split_opts if they exist. In builtin/fetch.c, we create such a split_opts, but do not populate it with values. This problem is due to two failures: 1. It is unclear that we can add the flag COMMIT_GRAPH_WRITE_SPLIT with a NULL split_opts. 2. If we have a non-NULL split_opts, then we override the default values even if a zero value is given. Correct both of these issues. First, do not override size_mult when the options provide a zero value. Second, stop creating a split_opts in the fetch builtin. Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano

Merge branch 'rs/use-skip-prefix-more'

2019-12-06T23:09:22Z

Code cleanup. * rs/use-skip-prefix-more: name-rev: use skip_prefix() instead of starts_with() push: use skip_prefix() instead of starts_with() shell: use skip_prefix() instead of starts_with() fmt-merge-msg: use skip_prefix() instead of starts_with() fetch: use skip_prefix() instead of starts_with()

Merge branch 'jt/fetch-remove-lazy-fetch-plugging'

2019-12-01T17:04:38Z

"git fetch" codepath had a big "do not lazily fetch missing objects when I ask if something exists" switch. This has been corrected by marking the "does this thing exist?" calls with "if not please do not lazily fetch it" flag. * jt/fetch-remove-lazy-fetch-plugging: promisor-remote: remove fetch_if_missing=0 clone: remove fetch_if_missing=0 fetch: remove fetch_if_missing=0

Merge branch 'en/doc-typofix'

2019-12-01T17:04:35Z

Docfix. * en/doc-typofix: Fix spelling errors in no-longer-updated-from-upstream modules multimail: fix a few simple spelling errors sha1dc: fix trivial comment spelling error Fix spelling errors in test commands Fix spelling errors in messages shown to users Fix spelling errors in names of tests Fix spelling errors in comments of testcases Fix spelling errors in code comments Fix spelling errors in documentation outside of Documentation/ Documentation: fix a bunch of typos, both old and new

Merge branch 'js/fetch-multi-lockfix'

2019-12-01T17:04:33Z

Fetching from multiple remotes into the same repository in parallel had a bad interaction with the recent change to (optionally) update the commit-graph after a fetch job finishes, as these parallel fetches compete with each other. Which has been corrected. * js/fetch-multi-lockfix: fetch: avoid locking issues between fetch.jobs/fetch.writeCommitGraph fetch: add the command-line option `--write-commit-graph`

Merge branch 'rt/fetch-message-fix'

2019-12-01T17:04:32Z

A small message update. * rt/fetch-message-fix: fetch.c: fix typo in a warning message

fetch: use skip_prefix() instead of starts_with()

2019-11-27T02:17:22Z

Get rid of magic numbers by letting skip_prefix() set the pointer "what". Signed-off-by: René Scharfe Acked-by: Jeff King Signed-off-by: Junio C Hamano

Fix spelling errors in code comments

2019-11-10T07:00:54Z

Reported-by: Jens Schleusener Signed-off-by: Elijah Newren Signed-off-by: Junio C Hamano