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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:34:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:34:27 +0000
commit4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f (patch)
tree47c1d492e9c956c1cd2b74dbd3b9d8b0db44dc4e /apply.h
parentInitial commit. (diff)
downloadgit-4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f.tar.xz
git-4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f.zip
Adding upstream version 1:2.43.0.upstream/1%2.43.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'apply.h')
-rw-r--r--apply.h189
1 files changed, 189 insertions, 0 deletions
diff --git a/apply.h b/apply.h
new file mode 100644
index 0000000..7cd38b1
--- /dev/null
+++ b/apply.h
@@ -0,0 +1,189 @@
+#ifndef APPLY_H
+#define APPLY_H
+
+#include "hash-ll.h"
+#include "lockfile.h"
+#include "string-list.h"
+#include "strmap.h"
+
+struct repository;
+
+enum apply_ws_error_action {
+ nowarn_ws_error,
+ warn_on_ws_error,
+ die_on_ws_error,
+ correct_ws_error
+};
+
+enum apply_ws_ignore {
+ ignore_ws_none,
+ ignore_ws_change
+};
+
+enum apply_verbosity {
+ verbosity_silent = -1,
+ verbosity_normal = 0,
+ verbosity_verbose = 1
+};
+
+struct apply_state {
+ const char *prefix;
+
+ /* Lock file */
+ struct lock_file lock_file;
+
+ /* These control what gets looked at and modified */
+ int apply; /* this is not a dry-run */
+ int cached; /* apply to the index only */
+ int check; /* preimage must match working tree, don't actually apply */
+ int check_index; /* preimage must match the indexed version */
+ int update_index; /* check_index && apply */
+ int ita_only; /* add intent-to-add entries to the index */
+
+ /* These control cosmetic aspect of the output */
+ int diffstat; /* just show a diffstat, and don't actually apply */
+ int numstat; /* just show a numeric diffstat, and don't actually apply */
+ int summary; /* just report creation, deletion, etc, and don't actually apply */
+
+ /* These boolean parameters control how the apply is done */
+ int allow_overlap;
+ int apply_in_reverse;
+ int apply_with_reject;
+ int no_add;
+ int threeway;
+ int unidiff_zero;
+ int unsafe_paths;
+ int allow_empty;
+
+ /* Other non boolean parameters */
+ struct repository *repo;
+ const char *index_file;
+ enum apply_verbosity apply_verbosity;
+ const char *fake_ancestor;
+ const char *patch_input_file;
+ int line_termination;
+ struct strbuf root;
+ int p_value;
+ int p_value_known;
+ unsigned int p_context;
+
+ /* Exclude and include path parameters */
+ struct string_list limit_by_name;
+ int has_include;
+
+ /* Various "current state" */
+ int linenr; /* current line number */
+ /*
+ * We need to keep track of how symlinks in the preimage are
+ * manipulated by the patches. A patch to add a/b/c where a/b
+ * is a symlink should not be allowed to affect the directory
+ * the symlink points at, but if the same patch removes a/b,
+ * it is perfectly fine, as the patch removes a/b to make room
+ * to create a directory a/b so that a/b/c can be created.
+ */
+ struct strset removed_symlinks;
+ struct strset kept_symlinks;
+
+ /*
+ * For "diff-stat" like behaviour, we keep track of the biggest change
+ * we've seen, and the longest filename. That allows us to do simple
+ * scaling.
+ */
+ int max_change;
+ int max_len;
+
+ /*
+ * Records filenames that have been touched, in order to handle
+ * the case where more than one patches touch the same file.
+ */
+ struct string_list fn_table;
+
+ /*
+ * This is to save reporting routines before using
+ * set_error_routine() or set_warn_routine() to install muting
+ * routines when in verbosity_silent mode.
+ */
+ void (*saved_error_routine)(const char *err, va_list params);
+ void (*saved_warn_routine)(const char *warn, va_list params);
+
+ /* These control whitespace errors */
+ enum apply_ws_error_action ws_error_action;
+ enum apply_ws_ignore ws_ignore_action;
+ const char *whitespace_option;
+ int whitespace_error;
+ int squelch_whitespace_errors;
+ int applied_after_fixing_ws;
+};
+
+/*
+ * This represents a "patch" to a file, both metainfo changes
+ * such as creation/deletion, filemode and content changes represented
+ * as a series of fragments.
+ */
+struct patch {
+ char *new_name, *old_name, *def_name;
+ unsigned int old_mode, new_mode;
+ int is_new, is_delete; /* -1 = unknown, 0 = false, 1 = true */
+ int rejected;
+ unsigned ws_rule;
+ int lines_added, lines_deleted;
+ int score;
+ int extension_linenr; /* first line specifying delete/new/rename/copy */
+ unsigned int is_toplevel_relative:1;
+ unsigned int inaccurate_eof:1;
+ unsigned int is_binary:1;
+ unsigned int is_copy:1;
+ unsigned int is_rename:1;
+ unsigned int recount:1;
+ unsigned int conflicted_threeway:1;
+ unsigned int direct_to_threeway:1;
+ unsigned int crlf_in_old:1;
+ struct fragment *fragments;
+ char *result;
+ size_t resultsize;
+ char old_oid_prefix[GIT_MAX_HEXSZ + 1];
+ char new_oid_prefix[GIT_MAX_HEXSZ + 1];
+ struct patch *next;
+
+ /* three-way fallback result */
+ struct object_id threeway_stage[3];
+};
+
+int apply_parse_options(int argc, const char **argv,
+ struct apply_state *state,
+ int *force_apply, int *options,
+ const char * const *apply_usage);
+int init_apply_state(struct apply_state *state,
+ struct repository *repo,
+ const char *prefix);
+void clear_apply_state(struct apply_state *state);
+int check_apply_state(struct apply_state *state, int force_apply);
+
+/*
+ * Parse a git diff header, starting at line. Fills the relevant
+ * metadata information in 'struct patch'.
+ *
+ * Returns -1 on failure, the length of the parsed header otherwise.
+ */
+int parse_git_diff_header(struct strbuf *root,
+ int *linenr,
+ int p_value,
+ const char *line,
+ int len,
+ unsigned int size,
+ struct patch *patch);
+
+void release_patch(struct patch *patch);
+
+/*
+ * Some aspects of the apply behavior are controlled by the following
+ * bits in the "options" parameter passed to apply_all_patches().
+ */
+#define APPLY_OPT_INACCURATE_EOF (1<<0) /* accept inaccurate eof */
+#define APPLY_OPT_RECOUNT (1<<1) /* accept inaccurate line count */
+
+int apply_all_patches(struct apply_state *state,
+ int argc, const char **argv,
+ int options);
+
+#endif