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d3115660b4
It can be helpful when creating a new branch to use the existing
tracking configuration from the branch point. However, there is
currently not a method to automatically do so.
Teach git-{branch,checkout,switch} an "inherit" argument to the
"--track" option. When this is set, creating a new branch will cause the
tracking configuration to default to the configuration of the branch
point, if set.
For example, if branch "main" tracks "origin/main", and we run
`git checkout --track=inherit -b feature main`, then branch "feature"
will track "origin/main". Thus, `git status` will show us how far
ahead/behind we are from origin, and `git pull` will pull from origin.
This is particularly useful when creating branches across many
submodules, such as with `git submodule foreach ...` (or if running with
a patch such as [1], which we use at $job), as it avoids having to
manually set tracking info for each submodule.
Since we've added an argument to "--track", also add "--track=direct" as
another way to explicitly get the original "--track" behavior ("--track"
without an argument still works as well).
Finally, teach branch.autoSetupMerge a new "inherit" option. When this
is set, "--track=inherit" becomes the default behavior.
[1]: https://lore.kernel.org/git/20180927221603.148025-1-sbeller@google.com/
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
104 lines
3 KiB
C
104 lines
3 KiB
C
#ifndef BRANCH_H
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#define BRANCH_H
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struct repository;
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struct strbuf;
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enum branch_track {
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BRANCH_TRACK_UNSPECIFIED = -1,
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BRANCH_TRACK_NEVER = 0,
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BRANCH_TRACK_REMOTE,
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BRANCH_TRACK_ALWAYS,
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BRANCH_TRACK_EXPLICIT,
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BRANCH_TRACK_OVERRIDE,
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BRANCH_TRACK_INHERIT,
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};
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extern enum branch_track git_branch_track;
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/* Functions for acting on the information about branches. */
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/*
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* Creates a new branch, where:
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*
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* - r is the repository to add a branch to
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*
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* - name is the new branch name
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*
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* - start_name is the name of the existing branch that the new branch should
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* start from
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*
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* - force enables overwriting an existing (non-head) branch
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*
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* - clobber_head_ok allows the currently checked out (hence existing)
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* branch to be overwritten; without 'force', it has no effect.
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*
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* - reflog creates a reflog for the branch
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*
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* - quiet suppresses tracking information
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*
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* - track causes the new branch to be configured to merge the remote branch
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* that start_name is a tracking branch for (if any).
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*
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*/
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void create_branch(struct repository *r,
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const char *name, const char *start_name,
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int force, int clobber_head_ok,
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int reflog, int quiet, enum branch_track track);
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/*
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* Check if 'name' can be a valid name for a branch; die otherwise.
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* Return 1 if the named branch already exists; return 0 otherwise.
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* Fill ref with the full refname for the branch.
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*/
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int validate_branchname(const char *name, struct strbuf *ref);
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/*
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* Check if a branch 'name' can be created as a new branch; die otherwise.
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* 'force' can be used when it is OK for the named branch already exists.
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* Return 1 if the named branch already exists; return 0 otherwise.
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* Fill ref with the full refname for the branch.
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*/
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int validate_new_branchname(const char *name, struct strbuf *ref, int force);
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/*
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* Remove information about the merge state on the current
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* branch. (E.g., MERGE_HEAD)
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*/
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void remove_merge_branch_state(struct repository *r);
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/*
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* Remove information about the state of working on the current
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* branch. (E.g., MERGE_HEAD)
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*/
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void remove_branch_state(struct repository *r, int verbose);
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/*
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* Configure local branch "local" as downstream to branch "remote"
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* from remote "origin". Used by git branch --set-upstream.
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* Returns 0 on success.
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*/
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#define BRANCH_CONFIG_VERBOSE 01
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int install_branch_config(int flag, const char *local, const char *origin, const char *remote);
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/*
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* Read branch description
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*/
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int read_branch_desc(struct strbuf *, const char *branch_name);
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/*
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* Check if a branch is checked out in the main worktree or any linked
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* worktree and die (with a message describing its checkout location) if
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* it is.
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*/
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void die_if_checked_out(const char *branch, int ignore_current_worktree);
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/*
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* Update all per-worktree HEADs pointing at the old ref to point the new ref.
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* This will be used when renaming a branch. Returns 0 if successful, non-zero
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* otherwise.
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*/
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int replace_each_worktree_head_symref(const char *oldref, const char *newref,
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const char *logmsg);
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#endif
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