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-rw-r--r--src/diff.h9
-rw-r--r--src/diff_tform.c22
-rw-r--r--src/stash.c29
3 files changed, 46 insertions, 14 deletions
diff --git a/src/diff.h b/src/diff.h
index 39d15fa6d..a202a086c 100644
--- a/src/diff.h
+++ b/src/diff.h
@@ -133,6 +133,15 @@ typedef git_diff_delta *(*git_diff__merge_cb)(
extern int git_diff__merge(
git_diff *onto, const git_diff *from, git_diff__merge_cb cb);
+extern git_diff_delta *git_diff__merge_like_cgit(
+ const git_diff_delta *a,
+ const git_diff_delta *b,
+ git_pool *pool);
+
+/* Duplicate a `git_diff_delta` out of the `git_pool` */
+extern git_diff_delta *git_diff__delta_dup(
+ const git_diff_delta *d, git_pool *pool);
+
/*
* Sometimes a git_diff_file will have a zero size; this attempts to
* fill in the size without loading the blob if possible. If that is
diff --git a/src/diff_tform.c b/src/diff_tform.c
index 52a7b528b..92647e330 100644
--- a/src/diff_tform.c
+++ b/src/diff_tform.c
@@ -15,7 +15,7 @@
#include "fileops.h"
#include "config.h"
-static git_diff_delta *diff_delta__dup(
+git_diff_delta *git_diff__delta_dup(
const git_diff_delta *d, git_pool *pool)
{
git_diff_delta *delta = git__malloc(sizeof(git_diff_delta));
@@ -46,7 +46,7 @@ fail:
return NULL;
}
-static git_diff_delta *diff_delta__merge_like_cgit(
+git_diff_delta *git_diff__merge_like_cgit(
const git_diff_delta *a,
const git_diff_delta *b,
git_pool *pool)
@@ -67,16 +67,16 @@ static git_diff_delta *diff_delta__merge_like_cgit(
/* If one of the diffs is a conflict, just dup it */
if (b->status == GIT_DELTA_CONFLICTED)
- return diff_delta__dup(b, pool);
+ return git_diff__delta_dup(b, pool);
if (a->status == GIT_DELTA_CONFLICTED)
- return diff_delta__dup(a, pool);
+ return git_diff__delta_dup(a, pool);
/* if f2 == f3 or f2 is deleted, then just dup the 'a' diff */
if (b->status == GIT_DELTA_UNMODIFIED || a->status == GIT_DELTA_DELETED)
- return diff_delta__dup(a, pool);
+ return git_diff__delta_dup(a, pool);
/* otherwise, base this diff on the 'b' diff */
- if ((dup = diff_delta__dup(b, pool)) == NULL)
+ if ((dup = git_diff__delta_dup(b, pool)) == NULL)
return NULL;
/* If 'a' status is uninteresting, then we're done */
@@ -109,7 +109,7 @@ static git_diff_delta *diff_delta__merge_like_cgit(
return dup;
}
-int git_diff__merge_deltas(
+int git_diff__merge(
git_diff *onto, const git_diff *from, git_diff__merge_cb cb)
{
int error = 0;
@@ -146,10 +146,10 @@ int git_diff__merge_deltas(
STRCMP_CASESELECT(ignore_case, o->old_file.path, f->old_file.path);
if (cmp < 0) {
- delta = diff_delta__dup(o, &onto_pool);
+ delta = git_diff__delta_dup(o, &onto_pool);
i++;
} else if (cmp > 0) {
- delta = diff_delta__dup(f, &onto_pool);
+ delta = git_diff__delta_dup(f, &onto_pool);
j++;
} else {
const git_diff_delta *left = reversed ? f : o;
@@ -196,7 +196,7 @@ int git_diff__merge_deltas(
int git_diff_merge(git_diff *onto, const git_diff *from)
{
- return git_diff__merge_deltas(onto, from, diff_delta__merge_like_cgit);
+ return git_diff__merge(onto, from, git_diff__merge_like_cgit);
}
int git_diff_find_similar__hashsig_for_file(
@@ -347,7 +347,7 @@ static int insert_delete_side_of_split(
git_diff *diff, git_vector *onto, const git_diff_delta *delta)
{
/* make new record for DELETED side of split */
- git_diff_delta *deleted = diff_delta__dup(delta, &diff->pool);
+ git_diff_delta *deleted = git_diff__delta_dup(delta, &diff->pool);
GITERR_CHECK_ALLOC(deleted);
deleted->status = GIT_DELTA_DELETED;
diff --git a/src/stash.c b/src/stash.c
index 8f512d4ad..9010c476d 100644
--- a/src/stash.c
+++ b/src/stash.c
@@ -22,6 +22,7 @@
#include "signature.h"
#include "iterator.h"
#include "merge.h"
+#include "diff.h"
static int create_error(int error, const char *msg)
{
@@ -292,6 +293,25 @@ cleanup:
return error;
}
+static git_diff_delta *stash_delta_merge(
+ const git_diff_delta *a,
+ const git_diff_delta *b,
+ git_pool *pool)
+{
+ /* Special case for stash: if a file is deleted in the index, but exists
+ * in the working tree, we need to stash the workdir copy for the workdir.
+ */
+ if (a->status == GIT_DELTA_DELETED && b->status == GIT_DELTA_UNTRACKED) {
+ git_diff_delta *dup = git_diff__delta_dup(b, pool);
+
+ if (dup)
+ dup->status = GIT_DELTA_MODIFIED;
+ return dup;
+ }
+
+ return git_diff__merge_like_cgit(a, b, pool);
+}
+
static int build_workdir_tree(
git_tree **tree_out,
git_index *index,
@@ -299,17 +319,19 @@ static int build_workdir_tree(
{
git_repository *repo = git_index_owner(index);
git_tree *b_tree = NULL;
- git_diff *diff = NULL;
+ git_diff *diff = NULL, *idx_to_wd = NULL;
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
struct stash_update_rules data = {0};
int error;
- opts.flags = GIT_DIFF_IGNORE_SUBMODULES;
+ opts.flags = GIT_DIFF_IGNORE_SUBMODULES | GIT_DIFF_INCLUDE_UNTRACKED;
if ((error = git_commit_tree(&b_tree, b_commit)) < 0)
goto cleanup;
- if ((error = git_diff_tree_to_workdir(&diff, repo, b_tree, &opts)) < 0)
+ if ((error = git_diff_tree_to_index(&diff, repo, b_tree, index, &opts)) < 0 ||
+ (error = git_diff_index_to_workdir(&idx_to_wd, repo, index, &opts)) < 0 ||
+ (error = git_diff__merge(diff, idx_to_wd, stash_delta_merge)) < 0)
goto cleanup;
data.include_changed = true;
@@ -320,6 +342,7 @@ static int build_workdir_tree(
error = build_tree_from_index(tree_out, index);
cleanup:
+ git_diff_free(idx_to_wd);
git_diff_free(diff);
git_tree_free(b_tree);