From 7610fa57e63b0acc0a66717fc2d85755634db591 Mon Sep 17 00:00:00 2001 From: Jonathan Nieder Date: Thu, 5 Aug 2010 06:32:41 -0500 Subject: [PATCH] merge-recursive --renormalize Teach "git merge-recursive" a --renormalize option to enable the merge.renormalize configuration. The --no-renormalize option can be used to override it in the negative. So in the future, you might be able to, e.g.: git checkout -m -Xrenormalize otherbranch or git revert -Xrenormalize otherpatch or git pull --rebase -Xrenormalize The bad part: merge.renormalize is still not honored for most commands. And it reveals lots of places that -X has not been plumbed in (so we get "git merge -Xrenormalize" but not much else). NEEDSWORK: tests Cc: Eyvind Bernhardsen Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano --- Documentation/merge-strategies.txt | 12 ++++++++++++ builtin/checkout.c | 7 +++++++ builtin/merge-recursive.c | 4 ++++ builtin/merge.c | 19 ++++++++++++++----- builtin/revert.c | 7 +++++++ cache.h | 1 - environment.c | 1 - merge-recursive.c | 2 +- 8 files changed, 45 insertions(+), 8 deletions(-) diff --git a/Documentation/merge-strategies.txt b/Documentation/merge-strategies.txt index a5bc1dbb95..049313d601 100644 --- a/Documentation/merge-strategies.txt +++ b/Documentation/merge-strategies.txt @@ -40,6 +40,18 @@ the other tree did, declaring 'our' history contains all that happened in it. theirs;; This is opposite of 'ours'. +renormalize;; + This runs a virtual check-out and check-in of all three stages + of a file when resolving a three-way merge. This option is + meant to be used when merging branches with different clean + filters or end-of-line normalization rules. See "Merging + branches with differing checkin/checkout attributes" in + linkgit:gitattributes[5] for details. + +no-renormalize;; + Disables the `renormalize` option. This overrides the + `merge.renormalize` configuration variable. + subtree[=path];; This option is a more advanced form of 'subtree' strategy, where the strategy makes a guess on how two trees must be shifted to diff --git a/builtin/checkout.c b/builtin/checkout.c index a0c00d3878..24b67d5dea 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -437,6 +437,13 @@ static int merge_working_tree(struct checkout_opts *opts, */ add_files_to_cache(NULL, NULL, 0); + /* + * NEEDSWORK: carrying over local changes + * when branches have different end-of-line + * normalization (or clean+smudge rules) is + * a pain; plumb in an option to set + * o.renormalize? + */ init_merge_options(&o); o.verbosity = 0; work = write_tree_from_memory(&o); diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c index d8875d5892..c2d4677fd3 100644 --- a/builtin/merge-recursive.c +++ b/builtin/merge-recursive.c @@ -45,6 +45,10 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix) o.subtree_shift = ""; else if (!prefixcmp(arg+2, "subtree=")) o.subtree_shift = arg + 10; + else if (!strcmp(arg+2, "renormalize")) + o.renormalize = 1; + else if (!strcmp(arg+2, "no-renormalize")) + o.renormalize = 0; else die("Unknown option %s", arg); continue; diff --git a/builtin/merge.c b/builtin/merge.c index b836e9c68b..037cd47e70 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -54,6 +54,7 @@ static size_t use_strategies_nr, use_strategies_alloc; static const char **xopts; static size_t xopts_nr, xopts_alloc; static const char *branch; +static int option_renormalize; static int verbosity; static int allow_rerere_auto; @@ -503,9 +504,8 @@ static int git_merge_config(const char *k, const char *v, void *cb) return git_config_string(&pull_octopus, k, v); else if (!strcmp(k, "merge.log") || !strcmp(k, "merge.summary")) option_log = git_config_bool(k, v); - else if (!strcmp(k, "merge.renormalize")) { - merge_renormalize = git_config_bool(k, v); - } + else if (!strcmp(k, "merge.renormalize")) + option_renormalize = git_config_bool(k, v); return git_diff_ui_config(k, v, cb); } @@ -627,6 +627,11 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, if (!strcmp(strategy, "subtree")) o.subtree_shift = ""; + o.renormalize = option_renormalize; + + /* + * NEEDSWORK: merge with table in builtin/merge-recursive + */ for (x = 0; x < xopts_nr; x++) { if (!strcmp(xopts[x], "ours")) o.recursive_variant = MERGE_RECURSIVE_OURS; @@ -636,6 +641,10 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, o.subtree_shift = ""; else if (!prefixcmp(xopts[x], "subtree=")) o.subtree_shift = xopts[x]+8; + else if (!strcmp(xopts[x], "renormalize")) + o.renormalize = 1; + else if (!strcmp(xopts[x], "no-renormalize")) + o.renormalize = 0; else die("Unknown option for merge-recursive: -X%s", xopts[x]); } @@ -819,7 +828,7 @@ static int finish_automerge(struct commit_list *common, return 0; } -static int suggest_conflicts(void) +static int suggest_conflicts(int renormalizing) { FILE *fp; int pos; @@ -1304,5 +1313,5 @@ int cmd_merge(int argc, const char **argv, const char *prefix) "stopped before committing as requested\n"); return 0; } else - return suggest_conflicts(); + return suggest_conflicts(option_renormalize); } diff --git a/builtin/revert.c b/builtin/revert.c index 853e9e406c..11132533c6 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -318,6 +318,13 @@ static void do_recursive_merge(struct commit *base, struct commit *next, index_fd = hold_locked_index(&index_lock, 1); read_cache(); + + /* + * NEEDSWORK: cherry-picking between branches with + * different end-of-line normalization is a pain; + * plumb in an option to set o.renormalize? + * (or better: arbitrary -X options) + */ init_merge_options(&o); o.ancestor = base ? base_label : "(empty tree)"; o.branch1 = "HEAD"; diff --git a/cache.h b/cache.h index ed73da883f..aa725b0d31 100644 --- a/cache.h +++ b/cache.h @@ -551,7 +551,6 @@ extern int read_replace_refs; extern int fsync_object_files; extern int core_preload_index; extern int core_apply_sparse_checkout; -extern int merge_renormalize; enum safe_crlf { SAFE_CRLF_FALSE = 0, diff --git a/environment.c b/environment.c index 81a36824f0..83d38d3c23 100644 --- a/environment.c +++ b/environment.c @@ -53,7 +53,6 @@ enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; char *notes_ref_name; int grafts_replace_parents = 1; int core_apply_sparse_checkout; -int merge_renormalize; /* Parallel index stat data preload? */ int core_preload_index = 0; diff --git a/merge-recursive.c b/merge-recursive.c index 23f7a4d139..762b5494d2 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -1486,7 +1486,7 @@ void init_merge_options(struct merge_options *o) o->buffer_output = 1; o->diff_rename_limit = -1; o->merge_rename_limit = -1; - o->renormalize = merge_renormalize; + o->renormalize = 0; git_config(merge_recursive_config, o); if (getenv("GIT_MERGE_VERBOSITY")) o->verbosity = -- 2.43.2