[PATCH] push: add config option to --force-with-lease by default.

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The flag can be overridden with `--no-force-with-lease`, or by
passing the config via the command line.

Signed-off-by: Francesco Mazzoli <f@xxxxxxxx>
---
 Documentation/config.txt | 5 +++++
 builtin/push.c           | 3 +++
 cache.h                  | 1 +
 config.c                 | 4 ++++
 environment.c            | 1 +
 5 files changed, 14 insertions(+)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 06898a7..36fe882 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2537,6 +2537,11 @@ push.default::
 	specific workflows; for instance, in a purely central workflow
 	(i.e. the fetch source is equal to the push destination),
 	`upstream` is probably what you want.  Possible values are:
+
+push.alwaysforcewithlease::
+	When true, `--force-with-lease` is the default behavior when
+	using `push --force`. Explicit invocations of `--force-with-lease`
+	or `--no-force-with-lease` if present, take precedence.
 +
 --
 
diff --git a/builtin/push.c b/builtin/push.c
index 03846e8..96fc4b2 100644
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -561,6 +561,9 @@ int cmd_push(int argc, const char **argv, const char *prefix)
 
 	packet_trace_identity("push");
 	git_config(git_push_config, &flags);
+	if (push_always_force_with_lease) {
+		cas.use_tracking_for_rest = 1;
+	}
 	argc = parse_options(argc, argv, prefix, options, push_usage, 0);
 	set_push_cert_flags(&flags, push_cert);
 
diff --git a/cache.h b/cache.h
index 96055c2..d31c972 100644
--- a/cache.h
+++ b/cache.h
@@ -830,6 +830,7 @@ enum push_default_type {
 extern enum branch_track git_branch_track;
 extern enum rebase_setup_type autorebase;
 extern enum push_default_type push_default;
+extern int push_always_force_with_lease;
 
 enum object_creation_mode {
 	OBJECT_CREATION_USES_HARDLINKS = 0,
diff --git a/config.c b/config.c
index 1cd40a5..2a0dbe4 100644
--- a/config.c
+++ b/config.c
@@ -1317,6 +1317,10 @@ static int git_default_push_config(const char *var, const char *value)
 		}
 		return 0;
 	}
+	if (!strcmp(var, "push.alwaysforcewithlease")) {
+		push_always_force_with_lease = git_config_bool(var, value);
+		return 0;
+	}
 
 	/* Add other config variables here and to Documentation/config.txt. */
 	return 0;
diff --git a/environment.c b/environment.c
index d40b21f..79186c7 100644
--- a/environment.c
+++ b/environment.c
@@ -53,6 +53,7 @@ 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;
+int push_always_force_with_lease = 0;
 #ifndef OBJECT_CREATION_MODE
 #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
 #endif
-- 
2.7.4




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