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Use a temporary index for git commit --interactive

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Change the behaviour of git commit --interactive so that when you abort
the commit (by leaving the commit message empty) the index remains
unchanged.

Hitherto an aborted commit --interactive has added the selected hunks to
the index regardless of whether the commit succeeded or not.

Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Conrad Irwin 2011-05-06 22:59:59 -07:00 committed by Junio C Hamano
parent 6086ff65df
commit 1020d08786
2 changed files with 30 additions and 9 deletions
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3
Documentation/git-commit.txt
View File

@ -41,7 +41,8 @@ The content to be added can be specified in several ways:
5. by using the --interactive switch with the 'commit' command to decide one
by one which files should be part of the commit, before finalizing the
operation. Currently, this is done by invoking 'git add --interactive'.
operation. Currently, this is done by invoking 'git add --interactive'
on a temporary index.
The `--dry-run` option can be used to obtain a
summary of what is included by any of the above for the next

36
builtin/commit.c
View File

@ -336,18 +336,11 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, int
int fd;
struct string_list partial;
const char **pathspec = NULL;
char *old_index_env = NULL;
int refresh_flags = REFRESH_QUIET;
if (is_status)
refresh_flags |= REFRESH_UNMERGED;
if (interactive) {
if (interactive_add(argc, argv, prefix) != 0)
die(_("interactive add failed"));
if (read_cache_preload(NULL) < 0)
die(_("index file corrupt"));
commit_style = COMMIT_AS_IS;
return get_index_file();
}
if (*argv)
pathspec = get_pathspec(prefix, argv);
@ -355,6 +348,33 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, int
if (read_cache_preload(pathspec) < 0)
die(_("index file corrupt"));
if (interactive) {
fd = hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
if (write_cache(fd, active_cache, active_nr) ||
close_lock_file(&index_lock))
die(_("unable to create temporary index"));
old_index_env = getenv(INDEX_ENVIRONMENT);
setenv(INDEX_ENVIRONMENT, index_lock.filename, 1);
if (interactive_add(argc, argv, prefix) != 0)
die(_("interactive add failed"));
if (old_index_env && *old_index_env)
setenv(INDEX_ENVIRONMENT, old_index_env, 1);
else
unsetenv(INDEX_ENVIRONMENT);
discard_cache();
read_cache_from(index_lock.filename);
commit_style = COMMIT_NORMAL;
return index_lock.filename;
}
/*
* Non partial, non as-is commit.
*