From 521537476fe99b97bfcdf1b8f0c579061af5fd3e Mon Sep 17 00:00:00 2001 From: Finn Arne Gangstad Date: Mon, 16 Mar 2009 16:42:51 +0100 Subject: [PATCH 1/3] New config push.default to decide default behavior for push When "git push" is not told what refspecs to push, it pushes all matching branches to the current remote. For some workflows this default is not useful, and surprises new users. Some have even found that this default behaviour is too easy to trigger by accident with unwanted consequences. Introduce a new configuration variable "push.default" that decides what action git push should take if no refspecs are given or implied by the command line arguments or the current remote configuration. Possible values are: 'nothing' : Push nothing; 'matching' : Current default behaviour, push all branches that already exist in the current remote; 'tracking' : Push the current branch to whatever it is tracking; 'current' : Push the current branch to a branch of the same name, i.e. HEAD. Signed-off-by: Finn Arne Gangstad Signed-off-by: Junio C Hamano --- Documentation/config.txt | 18 ++++++++++++++ builtin-push.c | 53 ++++++++++++++++++++++++++++++++++++---- cache.h | 9 +++++++ config.c | 28 +++++++++++++++++++++ environment.c | 1 + 5 files changed, 104 insertions(+), 5 deletions(-) diff --git a/Documentation/config.txt b/Documentation/config.txt index f5152c503..7b2b3f44a 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -1160,6 +1160,24 @@ pull.octopus:: pull.twohead:: The default merge strategy to use when pulling a single branch. +push.default:: + Defines the action git push should take if no refspec is given + on the command line, no refspec is configured in the remote, and + no refspec is implied by any of the options given on the command + line. ++ +The term `current remote` means the remote configured for the current +branch, or `origin` if no remote is configured. `origin` is also used +if you are not on any branch. Possible values are: ++ +* `nothing` do not push anything. +* `matching` push all matching branches to the current remote. + All branches having the same name in both ends are considered to be + matching. This is the current default value. +* `tracking` push the current branch to the branch it is tracking. +* `current` push the current branch to a branch of the same name on the + current remote. + receive.fsckObjects:: If it is set to true, git-receive-pack will check all received objects. It will abort in the case of a malformed object or a diff --git a/builtin-push.c b/builtin-push.c index 122fdcfbd..45fe843b2 100644 --- a/builtin-push.c +++ b/builtin-push.c @@ -48,6 +48,48 @@ static void set_refspecs(const char **refs, int nr) } } +static void setup_push_tracking(void) +{ + struct strbuf refspec = STRBUF_INIT; + struct branch *branch = branch_get(NULL); + if (!branch) + die("You are not currently on a branch."); + if (!branch->merge_nr) + die("The current branch %s is not tracking anything.", + branch->name); + if (branch->merge_nr != 1) + die("The current branch %s is tracking multiple branches, " + "refusing to push.", branch->name); + strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src); + add_refspec(refspec.buf); +} + +static void setup_default_push_refspecs(void) +{ + git_config(git_default_config, NULL); + switch (push_default) { + case PUSH_DEFAULT_UNSPECIFIED: + /* fallthrough */ + + case PUSH_DEFAULT_MATCHING: + add_refspec(":"); + break; + + case PUSH_DEFAULT_TRACKING: + setup_push_tracking(); + break; + + case PUSH_DEFAULT_CURRENT: + add_refspec("HEAD"); + break; + + case PUSH_DEFAULT_NOTHING: + die("You didn't specify any refspecs to push, and " + "push.default is \"nothing\"."); + break; + } +} + static int do_push(const char *repo, int flags) { int i, errs; @@ -76,11 +118,12 @@ static int do_push(const char *repo, int flags) return error("--all and --mirror are incompatible"); } - if (!refspec - && !(flags & TRANSPORT_PUSH_ALL) - && remote->push_refspec_nr) { - refspec = remote->push_refspec; - refspec_nr = remote->push_refspec_nr; + if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) { + if (remote->push_refspec_nr) { + refspec = remote->push_refspec; + refspec_nr = remote->push_refspec_nr; + } else if (!(flags & TRANSPORT_PUSH_MIRROR)) + setup_default_push_refspecs(); } errs = 0; for (i = 0; i < remote->url_nr; i++) { diff --git a/cache.h b/cache.h index 189151de2..df4f117ac 100644 --- a/cache.h +++ b/cache.h @@ -541,8 +541,17 @@ enum rebase_setup_type { AUTOREBASE_ALWAYS, }; +enum push_default_type { + PUSH_DEFAULT_UNSPECIFIED = -1, + PUSH_DEFAULT_NOTHING = 0, + PUSH_DEFAULT_MATCHING, + PUSH_DEFAULT_TRACKING, + PUSH_DEFAULT_CURRENT, +}; + extern enum branch_track git_branch_track; extern enum rebase_setup_type autorebase; +extern enum push_default_type push_default; #define GIT_REPO_VERSION 0 extern int repository_format_version; diff --git a/config.c b/config.c index 0c8c76f13..30443e327 100644 --- a/config.c +++ b/config.c @@ -565,6 +565,31 @@ static int git_default_branch_config(const char *var, const char *value) return 0; } +static int git_default_push_config(const char *var, const char *value) +{ + if (!strcmp(var, "push.default")) { + if (!value) + return config_error_nonbool(var); + else if (!strcmp(value, "nothing")) + push_default = PUSH_DEFAULT_NOTHING; + else if (!strcmp(value, "matching")) + push_default = PUSH_DEFAULT_MATCHING; + else if (!strcmp(value, "tracking")) + push_default = PUSH_DEFAULT_TRACKING; + else if (!strcmp(value, "current")) + push_default = PUSH_DEFAULT_CURRENT; + else { + error("Malformed value for %s: %s", var, value); + return error("Must be one of nothing, matching, " + "tracking or current."); + } + return 0; + } + + /* Add other config variables here and to Documentation/config.txt. */ + return 0; +} + static int git_default_mailmap_config(const char *var, const char *value) { if (!strcmp(var, "mailmap.file")) @@ -588,6 +613,9 @@ int git_default_config(const char *var, const char *value, void *dummy) if (!prefixcmp(var, "branch.")) return git_default_branch_config(var, value); + if (!prefixcmp(var, "push.")) + return git_default_push_config(var, value); + if (!prefixcmp(var, "mailmap.")) return git_default_mailmap_config(var, value); diff --git a/environment.c b/environment.c index e278bce0e..4696885b2 100644 --- a/environment.c +++ b/environment.c @@ -42,6 +42,7 @@ 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; +enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; /* Parallel index stat data preload? */ int core_preload_index = 0; From 665d3e8f057b90d7b43d70db75b9ac5506bd204d Mon Sep 17 00:00:00 2001 From: Finn Arne Gangstad Date: Mon, 16 Mar 2009 16:42:52 +0100 Subject: [PATCH 2/3] Display warning for default git push with no push.default config If a git push without any refspecs is attempted, display a warning. The current default behavior is to push all matching refspecs, which may come as a surprise to new users, so the warning shows how push.default can be configured and what the possible values are. Traditionalists who wish to keep the current behaviour are also told how to configure this once and never see the warning again. Signed-off-by: Finn Arne Gangstad Signed-off-by: Junio C Hamano --- Documentation/RelNotes-1.6.3.txt | 7 +++++++ builtin-push.c | 23 +++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/Documentation/RelNotes-1.6.3.txt b/Documentation/RelNotes-1.6.3.txt index ee1fddb76..7c02b2a30 100644 --- a/Documentation/RelNotes-1.6.3.txt +++ b/Documentation/RelNotes-1.6.3.txt @@ -22,6 +22,13 @@ branch pointed at by its HEAD, gets a large warning. You can choose what should happen upon such a push by setting the configuration variable receive.denyDeleteCurrent in the receiving repository. +In a future release, the default of "git push" without further +arguments might be changed. Currently, it will push all matching +refspecs to the current remote. A configuration variable push.default +has been introduced to select the default behaviour. To ease the +transition, a big warning is issued if this is not configured and a +git push without arguments is attempted. + Updates since v1.6.2 -------------------- diff --git a/builtin-push.c b/builtin-push.c index 45fe843b2..8f4fa5b09 100644 --- a/builtin-push.c +++ b/builtin-push.c @@ -64,11 +64,34 @@ static void setup_push_tracking(void) add_refspec(refspec.buf); } +static const char *warn_unconfigured_push_msg[] = { + "You did not specify any refspecs to push, and the current remote", + "has not configured any push refspecs. The default action in this", + "case is to push all matching refspecs, that is, all branches", + "that exist both locally and remotely will be updated. This may", + "not necessarily be what you want to happen.", + "", + "You can specify what action you want to take in this case, and", + "avoid seeing this message again, by configuring 'push.default' to:", + " 'nothing' : Do not push anythig", + " 'matching' : Push all matching branches (default)", + " 'tracking' : Push the current branch to whatever it is tracking", + " 'current' : Push the current branch" +}; + +static void warn_unconfigured_push(void) +{ + int i; + for (i = 0; i < ARRAY_SIZE(warn_unconfigured_push_msg); i++) + warning("%s", warn_unconfigured_push_msg[i]); +} + static void setup_default_push_refspecs(void) { git_config(git_default_config, NULL); switch (push_default) { case PUSH_DEFAULT_UNSPECIFIED: + warn_unconfigured_push(); /* fallthrough */ case PUSH_DEFAULT_MATCHING: From b2655cdae953d619d488b69b7d49e4204e5682dc Mon Sep 17 00:00:00 2001 From: Kevin Ballard Date: Wed, 25 Mar 2009 13:14:03 -0700 Subject: [PATCH 3/3] builtin-push.c: Fix typo: "anythig" -> "anything" Signed-off-by: Kevin Ballard Signed-off-by: Junio C Hamano --- builtin-push.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/builtin-push.c b/builtin-push.c index 8f4fa5b09..bbf019850 100644 --- a/builtin-push.c +++ b/builtin-push.c @@ -73,7 +73,7 @@ static const char *warn_unconfigured_push_msg[] = { "", "You can specify what action you want to take in this case, and", "avoid seeing this message again, by configuring 'push.default' to:", - " 'nothing' : Do not push anythig", + " 'nothing' : Do not push anything", " 'matching' : Push all matching branches (default)", " 'tracking' : Push the current branch to whatever it is tracking", " 'current' : Push the current branch"