[pitivi/sdk: 6/7] build: Handle missing ~/.bashrc when entering sandbox

[Alexandru Băluț <alexbalut src gnome org>]

commit f979431125e80c7be266bbbff0d32320738d48e9
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Thu Nov 7 23:32:59 2019 +0100

    build: Handle missing ~/.bashrc when entering sandbox

 build/flatpak/enter-env | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)
---
diff --git a/build/flatpak/enter-env b/build/flatpak/enter-env
index 07f6006e..19ebbb05 100755
--- a/build/flatpak/enter-env
+++ b/build/flatpak/enter-env
@@ -1,21 +1,27 @@
 #!/bin/sh
 
-PITIVI_DIR=$(realpath $(dirname $0)/../../)
-
-function generate_path_and_completion_calls {
-  echo "export PATH=$PITIVI_DIR/bin/:/app/bin/:/usr/bin/:\$PATH"
-}
+PITIVI_DIR=$(realpath "$(dirname $0)"/../../)
 
 RCFILE=$PITIVI_DIR/.bashrc
-cp ~/.bashrc $RCFILE
+(
+  cat ~/.bashrc  2>/dev/null
+
+  echo "export PS1=[ptv]\ \$PS1"
 
-echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/app/lib/" >> $RCFILE
-echo "export PS1=[ptv]\ \$PS1" >> $RCFILE
-generate_path_and_completion_calls >> $RCFILE
+  # Override LD_LIBRARY_PATH with the current value
+  # set by flatpak build.
+  echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH"
+  echo "echo LD_LIBRARY_PATH=\$LD_LIBRARY_PATH"
+
+  # Override PATH so our bin/pitivi can be found.
+  echo "export PATH=$PITIVI_DIR/bin/:/app/bin/:/usr/bin/:\$PATH"
+  echo "echo PATH=\$PATH"
+) > $RCFILE
 
 
 echo "=============================="
-echo "Entering own built environment"
+echo "Launching bash in the sandbox "
 echo "=============================="
 
+# The Gnome SDK only has bash.
 bash --rcfile $RCFILE