fish: add package fish shell

Signed-off-by: Curtis Jiang <jqqqqqqqqqq@qq.com>

utils/fish/Makefile

@@ -0,0 +1,67 @@
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=fish
+PKG_VERSION:=2.7.1
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/fish-shell/fish-shell/tar.gz/$(PKG_VERSION)?
+PKG_HASH:=eb43ea2eb9accf76661c487dd530a5fd345fa40a3201bd22cef2c52be39fb474
+PKG_MAINTAINER:=Curtis Jiang <jqqqqqqqqqq@gmail.com>
+PKG_LICENSE:=GPL-2.0
+
+PKG_FIXUP:=autoreconf
+PKG_INSTALL:=1
+PKG_BUILD_DIR:=$(BUILD_DIR)/fish-shell-$(PKG_VERSION)
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/fish
+  SECTION:=utils
+  CATEGORY:=Utilities
+  SUBMENU:=Shells
+  TITLE:=A smart and user-friendly command line shell
+  DEPENDS:=+libncurses +libstdcpp +librt
+  URL:=https://fishshell.com
+endef
+
+define Package/fish/description
+  Fish is a smart and user-friendly command line shell for OS X, Linux, and the
+  rest of the family. Fish includes features like syntax highlighting,
+  autosuggest-as-you-type, and fancy tab completions that just work, with no
+  configuration required.
+endef
+
+CONFIGURE_VARS += ac_cv_file__proc_self_stat=yes
+TARGET_CXXFLAGS += -std=c++0x
+
+define Package/fish/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/fish $(1)/usr/bin
+	$(INSTALL_DIR) $(1)/usr/share/fish
+	$(CP) $(PKG_INSTALL_DIR)/usr/share/fish/* $(1)/usr/share/fish/
+	rm -rf $(1)/usr/share/fish/groff
+	rm -rf $(1)/usr/share/fish/man
+	rm -rf $(1)/usr/share/fish/tools
+endef
+
+define Package/fish/postinst
+#!/bin/sh
+grep fish $${IPKG_INSTROOT}/etc/shells || \
+    echo "/usr/bin/fish" >> $${IPKG_INSTROOT}/etc/shells
+
+    # Backwards compatibility
+    if [[ -e /bin/fish ]] && ([[ ! -L /bin/fish ]] || [[ "$(readlink -fn $${IPKG_INSTROOT}/bin/fish)" != "../$(CONFIGURE_PREFIX)/bin/fish" ]]); then
+        ln -fs "../$(CONFIGURE_PREFIX)/bin/fish" "$${IPKG_INSTROOT}/bin/fish"
+    fi
+endef
+
+define Package/fish/postrm
+	rm -rf "$${IPKG_INSTROOT}/$(CONFIGURE_PREFIX)/share/fish/$(PKG_VERSION)"
+endef
+
+$(eval $(call BuildPackage,fish))

utils/fish/patches/001-no-hostname-and-whoami.patch

@@ -0,0 +1,54 @@
+diff --git a/share/functions/prompt_hostname.fish b/share/functions/prompt_hostname.fish
+index 4348bce2..8502ce3f 100644
+--- a/share/functions/prompt_hostname.fish
++++ b/share/functions/prompt_hostname.fish
+@@ -2,7 +2,7 @@
+ # hostname command uses. So cache the answer so including it in the prompt doesn't make fish seem
+ # slow.
+ if not set -q __fish_prompt_hostname
+-    set -g __fish_prompt_hostname (hostname | string split '.')[1]
++    set -g __fish_prompt_hostname (uname -n | string split '.')[1]
+ end
+ 
+ function prompt_hostname
+diff --git a/share/tools/web_config/sample_prompts/pythonista.fish b/share/tools/web_config/sample_prompts/pythonista.fish
+index 9529035c..57ffaf86 100644
+--- a/share/tools/web_config/sample_prompts/pythonista.fish
++++ b/share/tools/web_config/sample_prompts/pythonista.fish
+@@ -7,7 +7,7 @@ function fish_prompt
+         set -g VIRTUAL_ENV_DISABLE_PROMPT true
+     end
+     set_color yellow
+-    printf '%s' (whoami)
++    printf '%s' (id -un)
+     set_color normal
+     printf ' at '
+ 
+diff --git a/share/tools/web_config/sample_prompts/screen_savvy.fish b/share/tools/web_config/sample_prompts/screen_savvy.fish
+index 411a5501..5cdcfb69 100644
+--- a/share/tools/web_config/sample_prompts/screen_savvy.fish
++++ b/share/tools/web_config/sample_prompts/screen_savvy.fish
+@@ -2,8 +2,8 @@
+ # author: Matthias
+ function fish_prompt -d "Write out the prompt"
+     if test -z $WINDOW
+-        printf '%s%s@%s%s%s%s%s> ' (set_color yellow) (whoami) (set_color purple) (prompt_hostname) (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
++        printf '%s%s@%s%s%s%s%s> ' (set_color yellow) (id -un) (set_color purple) (prompt_hostname) (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
+     else
+-        printf '%s%s@%s%s%s(%s)%s%s%s> ' (set_color yellow) (whoami) (set_color purple) (prompt_hostname) (set_color white) (echo $WINDOW) (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
++        printf '%s%s@%s%s%s(%s)%s%s%s> ' (set_color yellow) (id -un) (set_color purple) (prompt_hostname) (set_color white) (echo $WINDOW) (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
+     end
+ end
+diff --git a/share/tools/web_config/sample_prompts/terlar.fish b/share/tools/web_config/sample_prompts/terlar.fish
+index d49ef340..59b3d267 100644
+--- a/share/tools/web_config/sample_prompts/terlar.fish
++++ b/share/tools/web_config/sample_prompts/terlar.fish
+@@ -6,7 +6,7 @@ function fish_prompt --description 'Write out the prompt'
+ 
+     # User
+     set_color $fish_color_user
+-    echo -n (whoami)
++    echo -n (id -un)
+     set_color normal
+ 
+     echo -n '@'