[PATCH] send-email: move bash completions to core script

[Thiago Perrotta <tbperrotta@gmail.com>]

"git send-email --git-completion-helper" only prints "format-patch"
flags. Make it print "send-email" flags as well.

Add a completion test for "send-email --validate", a send-email option.

Signed-off-by: Thiago Perrotta <tbperrotta@gmail.com>
---
Hi Carlos,

Good catch. Initially I had only moved the options from the script.

I am working on another patch (attached) that exhaustively adds all
options. At this time, it's still manual, I agree that generating the
flags programatically would be even better, but I didn't want to
complicate this series too much.

Let me know how you would like me to proceed here, I see 3 options:

1. drop the second part of the patch (v3 2/3) completely, only keep the
  other ones (1/3 and 3/3), which just adds the newline and touches the
  man page - leave automated flags for another series
2. send v4 with the attached - which exhaustively adds all send-email
options to the perl script, while removing the completions from the bash
completion script
3. send v4 with the attached and do not touch the current bash
completion script (keeping caching as is)

 contrib/completion/git-completion.bash | 11 +----
 git-send-email.perl                    | 62 ++++++++++++++++++++++++++
 t/t9902-completion.sh                  |  3 ++
 3 files changed, 66 insertions(+), 10 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 4bdd27ddc8..1b73a4dcc0 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -2359,16 +2359,7 @@ _git_send_email ()
 		return
 		;;
 	--*)
-		__gitcomp_builtin send-email "--annotate --bcc --cc --cc-cmd --chain-reply-to
-			--compose --confirm= --dry-run --envelope-sender
-			--from --identity
-			--in-reply-to --no-chain-reply-to --no-signed-off-by-cc
-			--no-suppress-from --no-thread --quiet --reply-to
-			--signed-off-by-cc --smtp-pass --smtp-server
-			--smtp-server-port --smtp-encryption= --smtp-user
-			--subject --suppress-cc= --suppress-from --thread --to
-			--validate --no-validate
-			$__git_format_patch_extra_options"
+		__gitcomp_builtin send-email "$__git_format_patch_extra_options"
 		return
 		;;
 	esac
diff --git a/git-send-email.perl b/git-send-email.perl
index d1731c1755..7139384f7a 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -114,6 +114,68 @@ sub usage {
 }
 
 sub completion_helper {
+    my @send_email_flags = qw/
+    --8bit-encoding
+    --annotate
+    --batch-size
+    --bcc
+    --cc
+    --cc-cmd
+    --cc-cover
+    --chain-reply-to
+    --compose
+    --compose-encoding
+    --confirm
+    --dry-run
+    --dump-aliases
+    --envelope-sender
+    --force
+    --format-patch
+    --from
+    --identity
+    --in-reply-to
+    --no-annotate
+    --no-bcc
+    --no-cc
+    --no-cc-cover
+    --no-chain-reply-to
+    --no-format-patch
+    --no-signed-off-by-cc
+    --no-smtp-auth
+    --no-suppress-from
+    --no-thread
+    --no-to
+    --no-to-cover
+    --no-validate
+    --no-xmailer
+    --quiet
+    --relogin-delay
+    --reply-to
+    --sendmail-cmd
+    --signed-off-by-cc
+    --smtp-auth
+    --smtp-debug
+    --smtp-domain
+    --smtp-encryption
+    --smtp-pass
+    --smtp-server
+    --smtp-server-option
+    --smtp-server-port
+    --smtp-ssl
+    --smtp-ssl-cert-path
+    --smtp-user
+    --subject
+    --suppress-cc
+    --suppress-from
+    --thread
+    --to
+    --to-cmd
+    --to-cover
+    --transfer-encoding
+    --validate
+    --xmailer
+    /;
+    print "@send_email_flags";
     print Git::command('format-patch', '--git-completion-helper'), "\n";
     exit(0);
 }
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 11573936d5..a4faf64184 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -2139,6 +2139,9 @@ test_expect_success PERL 'send-email' '
 	--cover-from-description=Z
 	--cover-letter Z
 	EOF
+	test_completion "git send-email --val" <<-\EOF &&
+	--validate Z
+	EOF
 	test_completion "git send-email ma" "main "
 '
 
-- 
2.33.0