system/yaml: Backport emitter fix from v0.2.2-pre1

These patches fix an emitter problem that prevents PyYAML 3.13's test
suite from passing. They should not be necessary when libyaml v0.2.2 is
released.

Patch-Author: James Clarke <jrtc27@jrtc27.com>
See-Also: https://github.com/yaml/pyyaml/issues/184
See-Also: https://github.com/yaml/libyaml/issues/60#issuecomment-311836709

3 files changed, 72 insertions, 3 deletions

diff --git a/system/yaml/APKBUILD b/system/yaml/APKBUILD
index 323ac3b40..4dfac01b3 100644
--- a/system/yaml/APKBUILD
+++ b/system/yaml/APKBUILD
@@ -2,7 +2,7 @@
 # Maintainer: A. Wilcox <awilfox@adelielinux.org>
 pkgname=yaml
 pkgver=0.2.1
-pkgrel=0
+pkgrel=1
 pkgdesc="YAML 1.1 parser and emitter written in C"
 url="https://pyyaml.org/wiki/LibYAML"
 arch="all"
@@ -10,7 +10,9 @@ license="MIT"
 depends=""
 makedepends=""
 subpackages="$pkgname-dev"
-source="http://pyyaml.org/download/libyaml/yaml-$pkgver.tar.gz"
+source="http://pyyaml.org/download/libyaml/yaml-$pkgver.tar.gz
+	fix-emitter-$pkgver.patch
+	skip-trailing-doc-term-$pkgver.patch"
 
 build() {
 	cd "$builddir"
@@ -35,4 +37,6 @@ package() {
 	make DESTDIR="$pkgdir" install
 }
 
-sha512sums="97ebeea2a2c877b24de2e1ffbf175d07d97d5c8b90e06d21fd057e1114d10b96c04fd92c2ed4e956db751b7ac1686b3fd5778927912ca5bb0d096908a1351235  yaml-0.2.1.tar.gz"
+sha512sums="97ebeea2a2c877b24de2e1ffbf175d07d97d5c8b90e06d21fd057e1114d10b96c04fd92c2ed4e956db751b7ac1686b3fd5778927912ca5bb0d096908a1351235  yaml-0.2.1.tar.gz
+ad35c3b893cfeb33fab748b39b06ad0c54215941f68d0df591b8e4e4edc3b67f27ea3206321b7621c0e9e6faf749255fd80209da017c77a91d8de68eec54fd2b  fix-emitter-0.2.1.patch
+715ad72a4a74b19fdf03b8be96b9e5c3801bab5475eeee4c98b109eabcf86e193d5884ad6466b6765ccc2174ebaedade25e43fff711d9522fb8f370bcea5eef4  skip-trailing-doc-term-0.2.1.patch"
diff --git a/system/yaml/fix-emitter-0.2.1.patch b/system/yaml/fix-emitter-0.2.1.patch
new file mode 100644
index 000000000..f3614e349
--- /dev/null
+++ b/system/yaml/fix-emitter-0.2.1.patch
@@ -0,0 +1,35 @@
+Contributor Note: This patch will be part of v0.2.2 which hasn't been
+formally released as of 2018-11-20. It should be removed once this
+package is version bumped.
+
+From e5ebb70a01cc0fbd9e519050d51d704f58c2a33d Mon Sep 17 00:00:00 2001
+From: James Clarke <jrtc27@jrtc27.com>
+Date: Thu, 29 Jun 2017 02:26:09 +0100
+Subject: [PATCH 2/2] Skip trailing document terminator at the end of the
+ stream
+
+---
+ src/emitter.c | 8 --------
+ 1 file changed, 8 deletions(-)
+
+diff --git a/src/emitter.c b/src/emitter.c
+index c593a7d..1502590 100644
+--- a/src/emitter.c
++++ b/src/emitter.c
+@@ -649,14 +649,6 @@ yaml_emitter_emit_document_start(yaml_emitter_t *emitter,
+ 
+     else if (event->type == YAML_STREAM_END_EVENT)
+     {
+-        if (emitter->open_ended)
+-        {
+-            if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0))
+-                return 0;
+-            if (!yaml_emitter_write_indent(emitter))
+-                return 0;
+-        }
+-
+         if (!yaml_emitter_flush(emitter))
+             return 0;
+ 
+-- 
+2.13.2
diff --git a/system/yaml/skip-trailing-doc-term-0.2.1.patch b/system/yaml/skip-trailing-doc-term-0.2.1.patch
new file mode 100644
index 000000000..7e10cd9ea
--- /dev/null
+++ b/system/yaml/skip-trailing-doc-term-0.2.1.patch
@@ -0,0 +1,30 @@
+Contributor Note: As with fix-emitter-0.2.1.patch, this patch should
+not be necessary when v0.2.2 is released.
+
+From 7c2e6f47e1b12ca3dfa9ea2f6c65e9bd8a02e8c8 Mon Sep 17 00:00:00 2001
+From: James Clarke <jrtc27@jrtc27.com>
+Date: Thu, 29 Jun 2017 02:24:53 +0100
+Subject: [PATCH 1/2] Revert "This code is not needed and breaks tests"
+
+This reverts commit 56400d976a1999156b1abfd674c3122843980260.
+---
+ src/emitter.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/emitter.c b/src/emitter.c
+index a5b7ff8..c593a7d 100644
+--- a/src/emitter.c
++++ b/src/emitter.c
+@@ -1946,6 +1946,10 @@ yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter,
+ 
+     emitter->whitespace = 0;
+     emitter->indention = 0;
++    if (emitter->root_context)
++    {
++        emitter->open_ended = 1;
++    }
+ 
+     return 1;
+ }
+-- 
+2.13.2