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sparse-checkout: check for dirty status

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The index-merge performed by 'git sparse-checkout' will erase any staged
changes, which can lead to data loss. Prevent these attempts by requiring
a clean 'git status' output.

Helped-by: Szeder Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2019-11-21 22:04:51 +00:00
committed by Junio C Hamano
parent 416adc8711
commit cff4e9138d
2 changed files with 27 additions and 1 deletions
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13
builtin/sparse-checkout.c
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@ -12,6 +12,7 @@
#include "lockfile.h"
#include "resolve-undo.h"
#include "unpack-trees.h"
#include "wt-status.h"
static const char *empty_base = "";
@ -256,6 +257,10 @@ static int sparse_checkout_init(int argc, const char **argv)
OPT_END(),
};
repo_read_index(the_repository);
require_clean_work_tree(the_repository,
N_("initialize sparse-checkout"), NULL, 1, 0);
argc = parse_options(argc, argv, NULL,
builtin_sparse_checkout_init_options,
builtin_sparse_checkout_init_usage, 0);
@ -368,6 +373,10 @@ static int sparse_checkout_set(int argc, const char **argv, const char *prefix)
OPT_END(),
};
repo_read_index(the_repository);
require_clean_work_tree(the_repository,
N_("set sparse-checkout patterns"), NULL, 1, 0);
memset(&pl, 0, sizeof(pl));
argc = parse_options(argc, argv, prefix,
@ -427,6 +436,10 @@ static int sparse_checkout_disable(int argc, const char **argv)
struct pattern_list pl;
struct strbuf match_all = STRBUF_INIT;
repo_read_index(the_repository);
require_clean_work_tree(the_repository,
N_("disable sparse-checkout"), NULL, 1, 0);
memset(&pl, 0, sizeof(pl));
hashmap_init(&pl.recursive_hashmap, pl_hashmap_cmp, NULL, 0);
hashmap_init(&pl.parent_hashmap, pl_hashmap_cmp, NULL, 0);