From 61c07126e28aba0a36730da06112bd2d16eabc1b Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Wed, 12 Nov 2008 00:32:47 +0100 Subject: [PATCH] git-add: introduce --edit (to edit the diff vs. the index) With "git add -e []", Git will fire up an editor with the current diff relative to the index (i.e. what you would get with "git diff []"). Now you can edit the patch as much as you like, including adding/removing lines, editing the text, whatever. Make sure, though, that the first character of the hunk lines is still a space, a plus or a minus. After you closed the editor, Git will adjust the line counts of the hunks if necessary, thanks to the --fixup-line-counts option of apply, and commit the patch. Except if you deleted everything, in which case nothing happens (for obvious reasons). Signed-off-by: Johannes Schindelin --- Documentation/git-add.txt | 11 ++++- builtin-add.c | 59 +++++++++++++++++++++++-- t/t3702-add-edit.sh | 109 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 175 insertions(+), 4 deletions(-) create mode 100755 t/t3702-add-edit.sh diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt index ce71838b9e..25e6667736 100644 --- a/Documentation/git-add.txt +++ b/Documentation/git-add.txt @@ -9,7 +9,7 @@ SYNOPSIS -------- [verse] 'git add' [-n] [-v] [--force | -f] [--interactive | -i] [--patch | -p] - [--all | [--update | -u]] [--intent-to-add | -N] + [--edit | -e] [--all | [--update | -u]] [--intent-to-add | -N] [--refresh] [--ignore-errors] [--] ... DESCRIPTION @@ -76,6 +76,15 @@ OPTIONS bypassed and the 'patch' subcommand is invoked using each of the specified filepatterns before exiting. +-e, \--edit:: + Open the diff vs. the index in an editor and let the user + edit it. After the editor was closed, adjust the hunk headers + and apply the patch to the index. ++ +*NOTE*: Obviously, if you change anything else than the first character +on lines beginning with a space or a minus, the patch will no longer +apply. + -u:: --update:: Update only files that git already knows about, staging modified diff --git a/builtin-add.c b/builtin-add.c index cb67d2c17e..e931974528 100644 --- a/builtin-add.c +++ b/builtin-add.c @@ -10,12 +10,14 @@ #include "cache-tree.h" #include "run-command.h" #include "parse-options.h" +#include "diff.h" +#include "revision.h" static const char * const builtin_add_usage[] = { "git add [options] [--] ...", NULL }; -static int patch_interactive, add_interactive; +static int patch_interactive, add_interactive, edit_interactive; static int take_worktree_changes; static void fill_pathspec_matches(const char **pathspec, char *seen, int specs) @@ -187,6 +189,51 @@ int interactive_add(int argc, const char **argv, const char *prefix) return status; } +int edit_patch(int argc, const char **argv, const char *prefix) +{ + char *file = xstrdup(git_path("ADD_EDIT.patch")); + const char *apply_argv[] = { "apply", "--recount", "--cached", + file, NULL }; + struct child_process child; + struct rev_info rev; + int out; + struct stat st; + + git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ + + if (read_cache() < 0) + die ("Could not read the index"); + + init_revisions(&rev, prefix); + rev.diffopt.context = 7; + + argc = setup_revisions(argc, argv, &rev, NULL); + rev.diffopt.output_format = DIFF_FORMAT_PATCH; + out = open(file, O_CREAT | O_WRONLY, 0644); + if (out < 0) + die ("Could not open '%s' for writing.", file); + rev.diffopt.file = fdopen(out, "w"); + rev.diffopt.close_file = 1; + if (run_diff_files(&rev, 0)) + die ("Could not write patch"); + + launch_editor(file, NULL, NULL); + + if (stat(file, &st)) + die("Could not stat '%s'", file); + if (!st.st_size) + die("Empty patch. Aborted."); + + memset(&child, 0, sizeof(child)); + child.git_cmd = 1; + child.argv = apply_argv; + if (run_command(&child)) + die ("Could not apply '%s'", file); + + unlink(file); + return 0; +} + static struct lock_file lock_file; static const char ignore_error[] = @@ -201,6 +248,7 @@ static struct option builtin_add_options[] = { OPT_GROUP(""), OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"), OPT_BOOLEAN('p', "patch", &patch_interactive, "interactive patching"), + OPT_BOOLEAN('e', "edit", &edit_interactive, "super-interactive patching"), OPT_BOOLEAN('f', "force", &ignored_too, "allow adding otherwise ignored files"), OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"), OPT_BOOLEAN('N', "intent-to-add", &intent_to_add, "record only the fact that the path will be added later"), @@ -251,14 +299,19 @@ int cmd_add(int argc, const char **argv, const char *prefix) int require_pathspec; argc = parse_options(argc, argv, builtin_add_options, - builtin_add_usage, 0); + builtin_add_usage, PARSE_OPT_KEEP_ARGV0); if (patch_interactive) add_interactive = 1; if (add_interactive) - exit(interactive_add(argc, argv, prefix)); + exit(interactive_add(argc - 1, argv + 1, prefix)); git_config(add_config, NULL); + if (edit_interactive) + return(edit_patch(argc, argv, prefix)); + argc--; + argv++; + if (addremove && take_worktree_changes) die("-A and -u are mutually incompatible"); if ((addremove || take_worktree_changes) && !argc) { diff --git a/t/t3702-add-edit.sh b/t/t3702-add-edit.sh new file mode 100755 index 0000000000..72627863e5 --- /dev/null +++ b/t/t3702-add-edit.sh @@ -0,0 +1,109 @@ +#!/bin/sh +# +# Copyright (c) 2007 Johannes E. Schindelin +# + +test_description='add -e basic tests' +. ./test-lib.sh + + +cat > file << EOF +LO, praise of the prowess of people-kings +of spear-armed Danes, in days long sped, +we have heard, and what honor the athelings won! +Oft Scyld the Scefing from squadroned foes, +from many a tribe, the mead-bench tore, +awing the earls. Since erst he lay +friendless, a foundling, fate repaid him: +for he waxed under welkin, in wealth he throve, +till before him the folk, both far and near, +who house by the whale-path, heard his mandate, +gave him gifts: a good king he! +EOF + +test_expect_success 'setup' ' + + git add file && + test_tick && + git commit -m initial file + +' + +cat > expected-patch << EOF +diff --git a/file b/file +index b9834b5..0b8f197 100644 +--- a/file ++++ b/file +@@ -1,11 +1,3 @@ +-LO, praise of the prowess of people-kings +-of spear-armed Danes, in days long sped, +-we have heard, and what honor the athelings won! +-Oft Scyld the Scefing from squadroned foes, +-from many a tribe, the mead-bench tore, +-awing the earls. Since erst he lay +-friendless, a foundling, fate repaid him: +-for he waxed under welkin, in wealth he throve, +-till before him the folk, both far and near, +-who house by the whale-path, heard his mandate, +-gave him gifts: a good king he! ++#!$SHELL_PATH ++mv -f "\$1" orig-patch && ++mv -f patch "\$1" +EOF + +cat > patch << EOF +diff --git a/file b/file +index b9834b5..ef6e94c 100644 +--- a/file ++++ b/file +@@ -3,1 +3,333 @@ of spear-armed Danes, in days long sped, + we have heard, and what honor the athelings won! ++ + Oft Scyld the Scefing from squadroned foes, +@@ -2,7 +1,5 @@ awing the earls. Since erst he lay + friendless, a foundling, fate repaid him: ++ + for he waxed under welkin, in wealth he throve, +EOF + +cat > expected << EOF +diff --git a/file b/file +index b9834b5..ef6e94c 100644 +--- a/file ++++ b/file +@@ -1,10 +1,12 @@ + LO, praise of the prowess of people-kings + of spear-armed Danes, in days long sped, + we have heard, and what honor the athelings won! ++ + Oft Scyld the Scefing from squadroned foes, + from many a tribe, the mead-bench tore, + awing the earls. Since erst he lay + friendless, a foundling, fate repaid him: ++ + for he waxed under welkin, in wealth he throve, + till before him the folk, both far and near, + who house by the whale-path, heard his mandate, +EOF + +echo "#!$SHELL_PATH" >fake-editor.sh +cat >> fake-editor.sh <<\EOF +mv -f "$1" orig-patch && +mv -f patch "$1" +EOF + +test_set_editor "$(pwd)/fake-editor.sh" +chmod a+x fake-editor.sh + +test_expect_success 'add -e' ' + + cp fake-editor.sh file && + git add -e && + test_cmp fake-editor.sh file && + test_cmp orig-patch expected-patch && + git diff --cached > out && + test_cmp out expected + +' + +test_done -- 2.11.4.GIT