[osm-tile-server] 57/70: Make sure /usr/share/openstreetmap-carto/symbols is removed if it is a directory.

[Ruben Undheim]

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rubund-guest pushed a commit to branch master
in repository osm-tile-server.

commit 5d98b8ecf36f3150f02b5cee25ed9230fa549409
Author: Ruben Undheim <ruben.undheim at gmail.com>
Date:   Mon Oct 12 23:05:50 2015 +0200

    Make sure /usr/share/openstreetmap-carto/symbols is removed if it is a directory.
---
 debian/changelog                    | 7 +++++--
 debian/openstreetmap-carto.postinst | 9 +++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index bf41e1b..8b2d1a0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,11 +4,14 @@ openstreetmap-carto (2.35.0-3) UNRELEASED; urgency=medium
   * debian/po/*.po:
     - Fixed path to get-shapefiles.sh in translations
   * Robustified transition from one binary to two binaries:
+    - debian/openstreetmap-carto.postinst:
+      - Make sure /usr/share/openstreetmap-carto/symbols is removed if it
+        is a directory and replaced by symbolic link
     - debian/openstreetmap-carto.preinst:
-        Check that data dir is not a symbolic link before moving
+      - Check that data dir is not a symbolic link before moving
         to data.old
     - debian/openstreetmap-carto-common.postinst:
-        Move data.old from /usr/share/openstreetmap-carto to
+      - Move data.old from /usr/share/openstreetmap-carto to
         /usr/share/openstreetmap-carto-common to make it
         unnecessary to download data files again if they
         have already been downloaded before the upgrade.
diff --git a/debian/openstreetmap-carto.postinst b/debian/openstreetmap-carto.postinst
index d8ac8fb..ff3335c 100755
--- a/debian/openstreetmap-carto.postinst
+++ b/debian/openstreetmap-carto.postinst
@@ -9,9 +9,18 @@ set -e
 case "$1" in
   configure|triggered)
 
+    # Generate style.xml from "template" in openstreetmap-carto-common
     db_get openstreetmap-carto/database-name
     sed -e"s/\[gis\]/\[$RET\]/" /usr/share/openstreetmap-carto-common/style.xml > /usr/share/openstreetmap-carto/style.xml
 
+
+    # This is necessary to change the dir to a symbolic link since a dir will never be
+    # replaced by a symbolic link during upgrade if not done in maintainer scripts.
+    if [ -d /usr/share/openstreetmap-carto/symbols ] && [ ! -L /usr/share/openstreetmap-carto/symbols ] ; then
+        rmdir /usr/share/openstreetmap-carto/symbols
+        ln -sf ../openstreetmap-carto-common/symbols /usr/share/openstreetmap-carto/symbols
+    fi
+
   ;;
 
   abort-upgrade|abort-remove|abort-deconfigure)

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