diff options
| -rw-r--r-- | Documentation/git-rebase.txt | 19 | ||||
| -rw-r--r-- | builtin/rebase.c | 19 | ||||
| -rwxr-xr-x | t/t3422-rebase-incompatible-options.sh | 1 | ||||
| -rwxr-xr-x | t/t3436-rebase-more-options.sh | 60 |
4 files changed, 93 insertions, 6 deletions
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index f7a6033607..b003784f01 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -422,8 +422,23 @@ your branch contains commits which were dropped, this option can be used with `--keep-base` in order to drop those commits from your branch. --ignore-whitespace:: + Ignore whitespace differences when trying to reconcile +differences. Currently, each backend implements an approximation of +this behavior: ++ +apply backend: When applying a patch, ignore changes in whitespace in +context lines. Unfortunately, this means that if the "old" lines being +replaced by the patch differ only in whitespace from the existing +file, you will get a merge conflict instead of a successful patch +application. ++ +merge backend: Treat lines with only whitespace changes as unchanged +when merging. Unfortunately, this means that any patch hunks that were +intended to modify whitespace and nothing else will be dropped, even +if the other side had no changes that conflicted. + --whitespace=<option>:: - These flags are passed to the 'git apply' program + This flag is passed to the 'git apply' program (see linkgit:git-apply[1]) that applies the patch. Implies --apply. + @@ -572,7 +587,6 @@ The following options: * --apply * --committer-date-is-author-date * --ignore-date - * --ignore-whitespace * --whitespace * -C @@ -598,6 +612,7 @@ In addition, the following pairs of options are incompatible: * --preserve-merges and --signoff * --preserve-merges and --rebase-merges * --preserve-merges and --empty= + * --preserve-merges and --ignore-whitespace * --keep-base and --onto * --keep-base and --root diff --git a/builtin/rebase.c b/builtin/rebase.c index 27a07d4e78..bd93e9742c 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -126,6 +126,7 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts) replay.reschedule_failed_exec = opts->reschedule_failed_exec; replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt); replay.strategy = opts->strategy; + if (opts->strategy_opts) parse_strategy_opts(&replay, opts->strategy_opts); @@ -1466,6 +1467,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) struct strbuf revisions = STRBUF_INIT; struct strbuf buf = STRBUF_INIT; struct object_id merge_base; + int ignore_whitespace = 0; enum action action = ACTION_NONE; const char *gpg_sign = NULL; struct string_list exec = STRING_LIST_INIT_NODUP; @@ -1495,9 +1497,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, OPT_BOOL(0, "signoff", &options.signoff, N_("add a Signed-off-by: line to each commit")), - OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &options.git_am_opts, - NULL, N_("passed to 'git am'"), - PARSE_OPT_NOARG), OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date", &options.git_am_opts, NULL, N_("passed to 'git am'"), PARSE_OPT_NOARG), @@ -1505,6 +1504,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) N_("passed to 'git am'"), PARSE_OPT_NOARG), OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"), N_("passed to 'git apply'"), 0), + OPT_BOOL(0, "ignore-whitespace", &ignore_whitespace, + N_("ignore changes in whitespace")), OPT_PASSTHRU_ARGV(0, "whitespace", &options.git_am_opts, N_("action"), N_("passed to 'git apply'"), 0), OPT_BIT('f', "force-rebase", &options.flags, @@ -1850,6 +1851,18 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) imply_merge(&options, "--rebase-merges"); } + if (options.type == REBASE_APPLY) { + if (ignore_whitespace) + argv_array_push(&options.git_am_opts, + "--ignore-whitespace"); + } else { + /* REBASE_MERGE and PRESERVE_MERGES */ + if (ignore_whitespace) { + string_list_append(&strategy_options, + "ignore-space-change"); + } + } + if (strategy_options.nr) { int i; diff --git a/t/t3422-rebase-incompatible-options.sh b/t/t3422-rebase-incompatible-options.sh index 50e7960702..55ca46786d 100755 --- a/t/t3422-rebase-incompatible-options.sh +++ b/t/t3422-rebase-incompatible-options.sh @@ -61,7 +61,6 @@ test_rebase_am_only () { } test_rebase_am_only --whitespace=fix -test_rebase_am_only --ignore-whitespace test_rebase_am_only --committer-date-is-author-date test_rebase_am_only -C4 diff --git a/t/t3436-rebase-more-options.sh b/t/t3436-rebase-more-options.sh new file mode 100755 index 0000000000..4f8a6e51c9 --- /dev/null +++ b/t/t3436-rebase-more-options.sh @@ -0,0 +1,60 @@ +#!/bin/sh +# +# Copyright (c) 2019 Rohit Ashiwal +# + +test_description='tests to ensure compatibility between am and interactive backends' + +. ./test-lib.sh + +. "$TEST_DIRECTORY"/lib-rebase.sh + +# This is a special case in which both am and interactive backends +# provide the same output. It was done intentionally because +# both the backends fall short of optimal behaviour. +test_expect_success 'setup' ' + git checkout -b topic && + test_write_lines "line 1" " line 2" "line 3" >file && + git add file && + git commit -m "add file" && + + test_write_lines "line 1" "new line 2" "line 3" >file && + git commit -am "update file" && + git tag side && + + git checkout --orphan master && + test_write_lines "line 1" " line 2" "line 3" >file && + git commit -am "add file" && + git tag main +' + +test_expect_success '--ignore-whitespace works with apply backend' ' + test_must_fail git rebase --apply main side && + git rebase --abort && + git rebase --apply --ignore-whitespace main side && + git diff --exit-code side +' + +test_expect_success '--ignore-whitespace works with merge backend' ' + test_must_fail git rebase --merge main side && + git rebase --abort && + git rebase --merge --ignore-whitespace main side && + git diff --exit-code side +' + +test_expect_success '--ignore-whitespace is remembered when continuing' ' + ( + set_fake_editor && + FAKE_LINES="break 1" git rebase -i --ignore-whitespace \ + main side && + git rebase --continue + ) && + git diff --exit-code side +' + +# This must be the last test in this file +test_expect_success '$EDITOR and friends are unchanged' ' + test_editor_unchanged +' + +test_done |