fish environment scripts

This script is a port of the bash/zsh scripts. It uses a different
approach of finding the src dir since .qmake.cache was deprecated and
doesn't contain any data since at least Qt 5.6.

The file can be sourced from ~/.config/fish/config.fish by adding for
example "source ~/qtchooser/scripts/qtchooser.fish".

Change-Id: I962eef746d97db811a92fd2fdd8b305f991fd793
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>

1 files changed, 120 insertions, 0 deletions

diff --git a/scripts/qtchooser.fish b/scripts/qtchooser.fish
new file mode 100644
index 0000000..fc9236f
--- /dev/null
+++ b/scripts/qtchooser.fish
@@ -0,0 +1,120 @@
+# -*- mode: sh -*-
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt-project.org/legal
+##
+## This file is part of the qtchooser module of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+##     of its contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+
+
+function _qt_env_removefrom
+    test (count $argv) -eq 2; or return
+    set -l INDEX (eval contains -i -- $argv[2] $$argv[1])
+    if test $INDEX
+        set -e $argv[1][$INDEX]
+    end
+end
+
+function _qt_select
+    # Get or set the Qt version
+    if test 0 -eq (count $argv)
+        if test -z $QT_SELECT
+            echo "Not using Qt."
+        else
+            echo "Using Qt version: $QT_SELECT"
+        end
+    else
+        # Set the working Qt version
+        set -e QT_SELECT
+        set -l QTTOOLDIR
+        set -l QTCHOOSER_PRINT_ENV qtchooser -qt=$argv[1] -print-env
+        set -l QT_ENV (test x$argv[1] = xnone; or eval $QTCHOOSER_PRINT_ENV)
+
+        # Remove old
+        _qt_env_removefrom LD_LIBRARY_PATH $QTLIBDIR
+        _qt_env_removefrom PKG_CONFIG_PATH $QTLIBDIR/pkgconfig
+        _qt_env_removefrom CMAKE_PREFIX_PATH $QTDIR
+
+        if test "x$argv[1]" != "xnone"
+            for QT_ENV_VAR in $QT_ENV
+                eval set -gx (echo $QT_ENV_VAR | sed -e "s,=, ,")
+            end
+
+            # Add new
+            set -gx LD_LIBRARY_PATH $LD_LIBRARY_PATH $QTLIBDIR
+            set -gx PKG_CONFIG_PATH $PKG_CONFIG_PATH $QTLIBDIR/pkgconfig
+
+            echo "Using Qt version: $argv[1]"
+
+            # try to get the QTDIR from qmake now
+            set -gx QTDIR (qmake -query QT_INSTALL_PREFIX)
+
+            set -gx CMAKE_PREFIX_PATH $CMAKE_PREFIX_PATH $QTDIR
+
+            # is this an uninstalled Qt build dir?
+            if test -f $QTDIR/Makefile
+                set -gx QTSRCDIR (dirname (awk '/Project:/{print $NF}' $QTDIR/Makefile))
+            else
+                set -e QTSRCDIR
+            end
+        else
+            set -e QTLIBDIR
+            set -e QTSRCDIR
+            set -e QTDIR
+            set -e QT_SELECT
+
+            if qtchooser -print-env >/dev/null 2>&1
+                echo "Using default Qt version."
+            else
+                echo "Not using Qt."
+            end
+        end
+    end
+end
+
+function qt
+    _qt_select $argv
+end
+
+function qcd
+    if test -z $QTDIR
+        echo "No Qt version selected."
+        return 1
+    end
+    set -l DIR $QTDIR
+    if test count $argv -ge 1
+        set -l DIR $DIR/$argv[1]
+    end
+    cd $DIR
+end
+