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Allow tracking branches to set up rebase by default.
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Change cd67e4d introduced a new configuration parameter that told
pull to automatically perform a rebase instead of a merge.  This
change provides a configuration option to enable this feature
automatically when creating a new branch.

If the variable branch.autosetuprebase applies for a branch that's
being created, that branch will have branch.<name>.rebase set to true.

Signed-off-by: Dustin Sallings <dustin@spy.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Dustin Sallings authored and Junio C Hamano committed May 11, 2008
1 parent d1a8d0e commit c998ae9
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Showing 6 changed files with 294 additions and 1 deletion.
15 changes: 15 additions & 0 deletions Documentation/config.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -399,6 +399,21 @@ branch.autosetupmerge::
done when the starting point is either a local branch or remote
branch. This option defaults to true.

branch.autosetuprebase::
When a new branch is created with `git-branch` or `git-checkout`
that tracks another branch, this variable tells git to set
up pull to rebase instead of merge (see "branch.<name>.rebase").
When `never`, rebase is never automatically set to true.
When `local`, rebase is set to true for tracked branches of
other local branches.
When `remote`, rebase is set to true for tracked branches of
remote branches.
When `always`, rebase will be set to true for all tracking
branches.
See "branch.autosetupmerge" for details on how to set up a
branch to track another branch.
This option defaults to never.

branch.<name>.remote::
When in branch <name>, it tells `git fetch` which remote to fetch.
If this option is not given, `git fetch` defaults to remote "origin".
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22 changes: 21 additions & 1 deletion branch.c
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Expand Up @@ -32,6 +32,21 @@ static int find_tracked_branch(struct remote *remote, void *priv)
return 0;
}

static int should_setup_rebase(const struct tracking *tracking)
{
switch (autorebase) {
case AUTOREBASE_NEVER:
return 0;
case AUTOREBASE_LOCAL:
return tracking->remote == NULL;
case AUTOREBASE_REMOTE:
return tracking->remote != NULL;
case AUTOREBASE_ALWAYS:
return 1;
}
return 0;
}

/*
* This is called when new_ref is branched off of orig_ref, and tries
* to infer the settings for branch.<new_ref>.{remote,merge} from the
Expand Down Expand Up @@ -69,9 +84,14 @@ static int setup_tracking(const char *new_ref, const char *orig_ref,
git_config_set(key, tracking.remote ? tracking.remote : ".");
sprintf(key, "branch.%s.merge", new_ref);
git_config_set(key, tracking.src ? tracking.src : orig_ref);
free(tracking.src);
printf("Branch %s set up to track %s branch %s.\n", new_ref,
tracking.remote ? "remote" : "local", orig_ref);
if (should_setup_rebase(&tracking)) {
sprintf(key, "branch.%s.rebase", new_ref);
git_config_set(key, "true");
printf("This branch will rebase on pull.\n");
}
free(tracking.src);

return 0;
}
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8 changes: 8 additions & 0 deletions cache.h
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Original file line number Diff line number Diff line change
Expand Up @@ -434,7 +434,15 @@ enum branch_track {
BRANCH_TRACK_EXPLICIT,
};

enum rebase_setup_type {
AUTOREBASE_NEVER = 0,
AUTOREBASE_LOCAL,
AUTOREBASE_REMOTE,
AUTOREBASE_ALWAYS,
};

extern enum branch_track git_branch_track;
extern enum rebase_setup_type autorebase;

#define GIT_REPO_VERSION 0
extern int repository_format_version;
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15 changes: 15 additions & 0 deletions config.c
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Expand Up @@ -487,6 +487,21 @@ int git_default_config(const char *var, const char *value)
git_branch_track = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "branch.autosetuprebase")) {
if (!value)
return config_error_nonbool(var);
else if (!strcmp(value, "never"))
autorebase = AUTOREBASE_NEVER;
else if (!strcmp(value, "local"))
autorebase = AUTOREBASE_LOCAL;
else if (!strcmp(value, "remote"))
autorebase = AUTOREBASE_REMOTE;
else if (!strcmp(value, "always"))
autorebase = AUTOREBASE_ALWAYS;
else
return error("Malformed value for %s", var);
return 0;
}

/* Add other config variables here and to Documentation/config.txt. */
return 0;
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1 change: 1 addition & 0 deletions environment.c
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Expand Up @@ -38,6 +38,7 @@ int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
enum rebase_setup_type autorebase = AUTOREBASE_NEVER;

/* This is set by setup_git_dir_gently() and/or git_default_config() */
char *git_work_tree_cfg;
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234 changes: 234 additions & 0 deletions t/t3200-branch.sh
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Expand Up @@ -224,4 +224,238 @@ test_expect_success 'avoid ambiguous track' '
test -z "$(git config branch.all1.merge)"
'

test_expect_success 'autosetuprebase local on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase local &&
(git show-ref -q refs/remotes/local/o || git-fetch local) &&
git branch mybase &&
git branch --track myr1 mybase &&
test "$(git config branch.myr1.remote)" = . &&
test "$(git config branch.myr1.merge)" = refs/heads/mybase &&
test "$(git config branch.myr1.rebase)" = true
'

test_expect_success 'autosetuprebase always on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase always &&
(git show-ref -q refs/remotes/local/o || git-fetch local) &&
git branch mybase2 &&
git branch --track myr2 mybase &&
test "$(git config branch.myr2.remote)" = . &&
test "$(git config branch.myr2.merge)" = refs/heads/mybase &&
test "$(git config branch.myr2.rebase)" = true
'

test_expect_success 'autosetuprebase remote on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase remote &&
(git show-ref -q refs/remotes/local/o || git-fetch local) &&
git branch mybase3 &&
git branch --track myr3 mybase2 &&
test "$(git config branch.myr3.remote)" = . &&
test "$(git config branch.myr3.merge)" = refs/heads/mybase2 &&
! test "$(git config branch.myr3.rebase)" = true
'

test_expect_success 'autosetuprebase never on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase never &&
(git show-ref -q refs/remotes/local/o || git-fetch local) &&
git branch mybase4 &&
git branch --track myr4 mybase2 &&
test "$(git config branch.myr4.remote)" = . &&
test "$(git config branch.myr4.merge)" = refs/heads/mybase2 &&
! test "$(git config branch.myr4.rebase)" = true
'

test_expect_success 'autosetuprebase local on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase local &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --track myr5 local/master &&
test "$(git config branch.myr5.remote)" = local &&
test "$(git config branch.myr5.merge)" = refs/heads/master &&
! test "$(git config branch.myr5.rebase)" = true
'

test_expect_success 'autosetuprebase never on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase never &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --track myr6 local/master &&
test "$(git config branch.myr6.remote)" = local &&
test "$(git config branch.myr6.merge)" = refs/heads/master &&
! test "$(git config branch.myr6.rebase)" = true
'

test_expect_success 'autosetuprebase remote on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase remote &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --track myr7 local/master &&
test "$(git config branch.myr7.remote)" = local &&
test "$(git config branch.myr7.merge)" = refs/heads/master &&
test "$(git config branch.myr7.rebase)" = true
'

test_expect_success 'autosetuprebase always on a tracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
git config branch.autosetuprebase remote &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --track myr8 local/master &&
test "$(git config branch.myr8.remote)" = local &&
test "$(git config branch.myr8.merge)" = refs/heads/master &&
test "$(git config branch.myr8.rebase)" = true
'

test_expect_success 'autosetuprebase unconfigured on a tracked remote branch' '
git config --unset branch.autosetuprebase &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --track myr9 local/master &&
test "$(git config branch.myr9.remote)" = local &&
test "$(git config branch.myr9.merge)" = refs/heads/master &&
test "z$(git config branch.myr9.rebase)" = z
'

test_expect_success 'autosetuprebase unconfigured on a tracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/o || git-fetch local) &&
git branch mybase10 &&
git branch --track myr10 mybase2 &&
test "$(git config branch.myr10.remote)" = . &&
test "$(git config branch.myr10.merge)" = refs/heads/mybase2 &&
test "z$(git config branch.myr10.rebase)" = z
'

test_expect_success 'autosetuprebase unconfigured on untracked local branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr11 mybase2 &&
test "z$(git config branch.myr11.remote)" = z &&
test "z$(git config branch.myr11.merge)" = z &&
test "z$(git config branch.myr11.rebase)" = z
'

test_expect_success 'autosetuprebase unconfigured on untracked remote branch' '
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr12 local/master &&
test "z$(git config branch.myr12.remote)" = z &&
test "z$(git config branch.myr12.merge)" = z &&
test "z$(git config branch.myr12.rebase)" = z
'

test_expect_success 'autosetuprebase never on an untracked local branch' '
git config branch.autosetuprebase never &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr13 mybase2 &&
test "z$(git config branch.myr13.remote)" = z &&
test "z$(git config branch.myr13.merge)" = z &&
test "z$(git config branch.myr13.rebase)" = z
'

test_expect_success 'autosetuprebase local on an untracked local branch' '
git config branch.autosetuprebase local &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr14 mybase2 &&
test "z$(git config branch.myr14.remote)" = z &&
test "z$(git config branch.myr14.merge)" = z &&
test "z$(git config branch.myr14.rebase)" = z
'

test_expect_success 'autosetuprebase remote on an untracked local branch' '
git config branch.autosetuprebase remote &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr15 mybase2 &&
test "z$(git config branch.myr15.remote)" = z &&
test "z$(git config branch.myr15.merge)" = z &&
test "z$(git config branch.myr15.rebase)" = z
'

test_expect_success 'autosetuprebase always on an untracked local branch' '
git config branch.autosetuprebase always &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr16 mybase2 &&
test "z$(git config branch.myr16.remote)" = z &&
test "z$(git config branch.myr16.merge)" = z &&
test "z$(git config branch.myr16.rebase)" = z
'

test_expect_success 'autosetuprebase never on an untracked remote branch' '
git config branch.autosetuprebase never &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr17 local/master &&
test "z$(git config branch.myr17.remote)" = z &&
test "z$(git config branch.myr17.merge)" = z &&
test "z$(git config branch.myr17.rebase)" = z
'

test_expect_success 'autosetuprebase local on an untracked remote branch' '
git config branch.autosetuprebase local &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr18 local/master &&
test "z$(git config branch.myr18.remote)" = z &&
test "z$(git config branch.myr18.merge)" = z &&
test "z$(git config branch.myr18.rebase)" = z
'

test_expect_success 'autosetuprebase remote on an untracked remote branch' '
git config branch.autosetuprebase remote &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr19 local/master &&
test "z$(git config branch.myr19.remote)" = z &&
test "z$(git config branch.myr19.merge)" = z &&
test "z$(git config branch.myr19.rebase)" = z
'

test_expect_success 'autosetuprebase always on an untracked remote branch' '
git config branch.autosetuprebase always &&
git config remote.local.url . &&
git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
(git show-ref -q refs/remotes/local/master || git-fetch local) &&
git branch --no-track myr20 local/master &&
test "z$(git config branch.myr20.remote)" = z &&
test "z$(git config branch.myr20.merge)" = z &&
test "z$(git config branch.myr20.rebase)" = z
'

test_expect_success 'detect misconfigured autosetuprebase (bad value)' '
git config branch.autosetuprebase garbage &&
test_must_fail git branch
'

test_expect_success 'detect misconfigured autosetuprebase (no value)' '
git config --unset branch.autosetuprebase &&
echo "[branch] autosetuprebase" >> .git/config &&
test_must_fail git branch &&
git config --unset branch.autosetuprebase
'

test_done

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