summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPaolo Bonzini <pbonzini@redhat.com>2020-02-20 14:15:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2020-02-20 21:20:40 (GMT)
commitf3b4822899dc4ddca688de285f01e1d12aeb33b6 (patch)
treeac759c1d85dbf76e6d10c84a1cc712591da527a6
parente8ef1e8d6edd835fcea7f88d2740d756a1353190 (diff)
downloadgit-f3b4822899dc4ddca688de285f01e1d12aeb33b6.zip
git-f3b4822899dc4ddca688de285f01e1d12aeb33b6.tar.gz
git-f3b4822899dc4ddca688de285f01e1d12aeb33b6.tar.bz2
am: support --show-current-patch=raw as a synonym for--show-current-patch
When "git am --show-current-patch" was added in commit 984913a210 ("am: add --show-current-patch", 2018-02-12), "git am" started recommending it as a replacement for .git/rebase-merge/patch. Unfortunately the suggestion is somewhat misguided; for example, the output "git am --show-current-patch" cannot be passed to "git apply" if it is encoded as quoted-printable or base64. To simplify worktree operations and to avoid that users poke into .git, it would be better if "git am" also provided a mode that copies .git/rebase-merge/patch to stdout. One possibility could be to have completely separate options, introducing for example --show-current-message (for .git/rebase-apply/NNNN) and --show-current-diff (for .git/rebase-apply/patch), while possibly deprecating --show-current-patch. That would even remove the need for the first two patches in the series. However, the long common prefix would have prevented using an abbreviated option such as "--show". Therefore, I chose instead to add a string argument to --show-current-patch. The new argument is optional, so that "git am --show-current-patch"'s behavior remains backwards-compatible. The next choice to make is how to handle multiple --show-current-patch options. Right now, something like "git am --abort --show-current-patch" is rejected, and the previous suggestion would likewise have naturally rejected a command line like git am --show-current-message --show-current-diff Therefore, I decided to also reject for example git am --show-current-patch=diff --show-current-patch=raw In other words the whole of --show-current-patch=xxx (including the optional argument) is treated as the command mode. I found this to be more consistent and intuitive, even though it differs from the usual "last one wins" semantics of the git command line. Add the code to parse submodes based on the above design, where for now "raw" is the only valid submode. "raw" prints the full e-mail message just like "git am --show-current-patch". Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/git-am.txt9
-rw-r--r--builtin/am.c59
-rw-r--r--contrib/completion/git-completion.bash5
-rwxr-xr-xt/t4150-am.sh10
4 files changed, 73 insertions, 10 deletions
diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt
index 11ca61b..590b711 100644
--- a/Documentation/git-am.txt
+++ b/Documentation/git-am.txt
@@ -16,7 +16,7 @@ SYNOPSIS
[--exclude=<path>] [--include=<path>] [--reject] [-q | --quiet]
[--[no-]scissors] [-S[<keyid>]] [--patch-format=<format>]
[(<mbox> | <Maildir>)...]
-'git am' (--continue | --skip | --abort | --quit | --show-current-patch)
+'git am' (--continue | --skip | --abort | --quit | --show-current-patch[=raw])
DESCRIPTION
-----------
@@ -176,9 +176,10 @@ default. You can use `--no-utf8` to override this.
Abort the patching operation but keep HEAD and the index
untouched.
---show-current-patch::
- Show the entire e-mail message "git am" has stopped at, because
- of conflicts.
+--show-current-patch[=raw]::
+ Show the raw contents of the e-mail message at which `git am`
+ has stopped due to conflicts. The argument must be omitted or
+ `raw`.
DISCUSSION
----------
diff --git a/builtin/am.c b/builtin/am.c
index bd3cda8..54b04da 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -81,6 +81,10 @@ enum signoff_type {
SIGNOFF_EXPLICIT /* --signoff was set on the command-line */
};
+enum show_patch_type {
+ SHOW_PATCH_RAW = 0,
+};
+
struct am_state {
/* state directory path */
char *dir;
@@ -2061,7 +2065,7 @@ static void am_abort(struct am_state *state)
am_destroy(state);
}
-static int show_patch(struct am_state *state)
+static int show_patch(struct am_state *state, enum show_patch_type sub_mode)
{
struct strbuf sb = STRBUF_INIT;
const char *patch_path;
@@ -2078,7 +2082,14 @@ static int show_patch(struct am_state *state)
return ret;
}
- patch_path = am_path(state, msgnum(state));
+ switch (sub_mode) {
+ case SHOW_PATCH_RAW:
+ patch_path = am_path(state, msgnum(state));
+ break;
+ default:
+ BUG("invalid mode for --show-current-patch");
+ }
+
len = strbuf_read_file(&sb, patch_path, 0);
if (len < 0)
die_errno(_("failed to read '%s'"), patch_path);
@@ -2130,8 +2141,42 @@ enum resume_type {
struct resume_mode {
enum resume_type mode;
+ enum show_patch_type sub_mode;
};
+static int parse_opt_show_current_patch(const struct option *opt, const char *arg, int unset)
+{
+ int *opt_value = opt->value;
+ struct resume_mode *resume = container_of(opt_value, struct resume_mode, mode);
+
+ /*
+ * Please update $__git_showcurrentpatch in git-completion.bash
+ * when you add new options
+ */
+ const char *valid_modes[] = {
+ [SHOW_PATCH_RAW] = "raw"
+ };
+ int new_value = SHOW_PATCH_RAW;
+
+ if (arg) {
+ for (new_value = 0; new_value < ARRAY_SIZE(valid_modes); new_value++) {
+ if (!strcmp(arg, valid_modes[new_value]))
+ break;
+ }
+ if (new_value >= ARRAY_SIZE(valid_modes))
+ return error(_("Invalid value for --show-current-patch: %s"), arg);
+ }
+
+ if (resume->mode == RESUME_SHOW_PATCH && new_value != resume->sub_mode)
+ return error(_("--show-current-patch=%s is incompatible with "
+ "--show-current-patch=%s"),
+ arg, valid_modes[resume->sub_mode]);
+
+ resume->mode = RESUME_SHOW_PATCH;
+ resume->sub_mode = new_value;
+ return 0;
+}
+
static int git_am_config(const char *k, const char *v, void *cb)
{
int status;
@@ -2233,9 +2278,11 @@ int cmd_am(int argc, const char **argv, const char *prefix)
OPT_CMDMODE(0, "quit", &resume.mode,
N_("abort the patching operation but keep HEAD where it is."),
RESUME_QUIT),
- OPT_CMDMODE(0, "show-current-patch", &resume.mode,
- N_("show the patch being applied."),
- RESUME_SHOW_PATCH),
+ { OPTION_CALLBACK, 0, "show-current-patch", &resume.mode,
+ "raw",
+ N_("show the patch being applied"),
+ PARSE_OPT_CMDMODE | PARSE_OPT_OPTARG | PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
+ parse_opt_show_current_patch, RESUME_SHOW_PATCH },
OPT_BOOL(0, "committer-date-is-author-date",
&state.committer_date_is_author_date,
N_("lie about committer date")),
@@ -2354,7 +2401,7 @@ int cmd_am(int argc, const char **argv, const char *prefix)
am_destroy(&state);
break;
case RESUME_SHOW_PATCH:
- ret = show_patch(&state);
+ ret = show_patch(&state, resume.sub_mode);
break;
default:
BUG("invalid resume value");
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index e4d9ff4..2673fc1 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1180,6 +1180,7 @@ __git_count_arguments ()
__git_whitespacelist="nowarn warn error error-all fix"
__git_patchformat="mbox stgit stgit-series hg mboxrd"
+__git_showcurrentpatch="raw"
__git_am_inprogress_options="--skip --continue --resolved --abort --quit --show-current-patch"
_git_am ()
@@ -1198,6 +1199,10 @@ _git_am ()
__gitcomp "$__git_patchformat" "" "${cur##--patch-format=}"
return
;;
+ --show-current-patch=*)
+ __gitcomp "$__git_showcurrentpatch" "" "${cur##--show-current-patch=}"
+ return
+ ;;
--*)
__gitcomp_builtin am "" \
"$__git_am_inprogress_options"
diff --git a/t/t4150-am.sh b/t/t4150-am.sh
index 4f1e24e..afe456e 100755
--- a/t/t4150-am.sh
+++ b/t/t4150-am.sh
@@ -666,6 +666,16 @@ test_expect_success 'am --show-current-patch' '
test_cmp .git/rebase-apply/0001 actual.patch
'
+test_expect_success 'am --show-current-patch=raw' '
+ git am --show-current-patch=raw >actual.patch &&
+ test_cmp .git/rebase-apply/0001 actual.patch
+'
+
+test_expect_success 'am accepts repeated --show-current-patch' '
+ git am --show-current-patch --show-current-patch=raw >actual.patch &&
+ test_cmp .git/rebase-apply/0001 actual.patch
+'
+
test_expect_success 'am --skip works' '
echo goodbye >expected &&
git am --skip &&