query the first contributor who added bridge=swing to the way - and generate Overpass-Turbo Wizard Query

bridge_swing.sh

#
# Ubuntu 14.04 linux 
# This example file is released into the Public Domain.  ( ImreSamu 2014.08.29 )
#
## Warning!  -  draft  code!   it creates lot of temp file to the working directory.
#  
#### The Job ###############################
#* find all bridge=swing ( now 639 results : http://taginfo.openstreetmap.org/search?q=bridge%3Dswing )
# *split results by the first contributor who added bridge=swing to the way
# *get the results into overpass-turbo wizard format and you can copy/paste  to overpass-turbo.eu Wizard 
# *from overpass-turbo , you can  ( Export/Data/"Load data into an OSM editor: JOSM," )  ( for examination and editing )
#
####  the Result ( but only for the ways ) ###########################
#
#  https://gist.github.com/ImreSamu/a2dd0a8c25f0fea5284c#file-bridge_swing_overpass_wizard-md
#
#### Prerequisites ###############
#
# Osmium Tool for - OSM OPL ("Object Per Line") Format
# "This format was created to allow easy access to and manipulation of OSM data with typical UNIX command line tools such as grep, # "sed, and awk. This can make some ad-hoc OSM data manipulation easy to do, but is probably not as fast as some specialized tool. # "But it beats grepping in XML files... "
#  more informations and examples: 
#    http://osmcode.org/libosmium/manual/libosmium-manual.html#output-formats
#    https://www.sotm-eu.org/en/slots/36
#    https://www.sotm-eu.org/slides/44.pdf
#

#
mkdir ...(empty) temp directory .... 
cd ...(empty) temp directory ....

#
#
# find all bridge=swing ( now 639 results : http://taginfo.openstreetmap.org/search?q=bridge%3Dswing )
# and convert to  OSM OPL format
# check:  http://wiki.openstreetmap.org/wiki/Overpass_API/XAPI_Compatibility_Layer
# and please use [bbox=...] parameter - for Bounding Boxes
#
wget -O bridge_swing.osm  'http://www.overpass-api.de/api/xapi_meta?way[bridge=swing]' 
cat  bridge_swing.osm 
osmium cat   bridge_swing.osm  -f opl > bridge_swing.opl

# Find all IDs of ways tagged bridge=swing
# it is now working for thes way , but there are  other points and realations tagged with this key-value
#  check:  http://taginfo.openstreetmap.org/tags/bridge=swing
#
egrep '^w' bridge_swing.opl | egrep "( T|,)bridge=swing" | cut -d' ' -f1 | cut -c2-   > bridge_swing_ids.txt


# query the history for every OSM Id.
#
# generate code for all IDs like:  
#       wget -O w99211716.osm  'http://api.openstreetmap.org/api/0.6/way/99211716/history'
#
awk '{ print "wget -O w" $1 ".osh '"'"'http://api.openstreetmap.org/api/0.6/way/" $1  "/history'"'"'"  }'  bridge_swing_ids.txt > get_oshistory.sh
parallel -j8 -a get_oshistory.sh


#
# convert the osm history file to OPL ( osmium cat w11323607.osh  -f opl  )
# sample OSM History OPL file:
#  w100646626 v1 dV c7343540 t2011-02-20T15:08:57Z i37137 uDerick%0020Rethans Tbridge=yes,highway=footway Nn309461645,n1163494643
#  w100646626 v2 dV c12447614 t2012-07-23T09:52:38Z i404175 urickogden Tbridge=swing,highway=footway Nn309461645,n1163494643
#  w100646626 v3 dV c18538313 t2013-10-25T16:16:57Z i24119 uMauls Tbridge=swing,highway=footway Nn309461645,n2508499967
#  w100646626 v4 dV c25024407 t2014-08-26T10:51:45Z i66391 ugeozeisig Tbridge=movable,bridge:movable=swing,highway=footway Nn309461645,n2508499967
#  w100646626 v5 dV c25050883 t2014-08-27T12:42:02Z i66391 ugeozeisig Tbridge=swing,highway=footway Nn309461645,n2508499967
#
# filter the results by the first contributor who added bridge=swing to the way ( egrep -m 1 '( T|,)bridge=swing' )
#result: v2
#  w100646626 v2 dV c12447614 t2012-07-23T09:52:38Z i404175 urickogden Tbridge=swing,highway=footway Nn309461645,n1163494643
#
# 
# generate code for all IDs like:  
#     echo 11323607 & osmium cat   w11323607.osh  -f opl |  egrep -m 1 '( T|,)bridge=swing'   >  w11323607.fed_opl
#
awk '{ print "echo " $1 " & osmium cat w" $1 ".osh -f opl | egrep -m 1 '"'"'( T|,)bridge=swing'"'"'  >  w" $1 ".fed_opl"  }'  bridge_swing_ids.txt > get_first_edit.sh
rm *.fed_opl
parallel -j8 -a get_first_edit.sh

#
# generate overpass-turbo Wizard  query  to every user  to bridge_swing_overpass_wizard2.md
# syntax:  http://wiki.openstreetmap.org/wiki/Overpass_turbo/Wizard -> see "Meta-Data Filters"
# 
# like:
#  ##  osm-user
#  type:way and ( id:27001207 or id:72584563 )  global
#   
cat *.fed_opl  | cut -d' ' -f7 | cut -c2-  | sort  | uniq | while read ln; do xuser=$ln && echo $'\n\n\n\n' "## $xuser " $'\n\n' && cat *.fed_opl | egrep "( u)$xuser" | cut -d' ' -f1 | cut -c2- | awk 'BEGIN{ORS=""; print "type:way and ( " } { print "id:" $1 " or "}END{print "id:1)  global \n" }' ; done   > bridge_swing_overpass_wizard2.md

#
# some text formatting ;
#
sed -i 's/or id:1)/)/g' bridge_swing_overpass_wizard2.md
sed -i 's/ ##/##/g' bridge_swing_overpass_wizard2.md

# check the result :
cat bridge_swing_overpass_wizard2.md


# How to check the query
# * go  http://overpass-turbo.eu/
# * select "Wizard"
# * copy /paste the generated query :  " type:way and ( id:27001207 or id:72584563 )  global"
# * "Build and run query" -> and check the result.
# * if you get timeout error, then check the generated script timeout ( "<osm-script output="json" timeout="25">" )  and set to 200 
# * you can "load data into an OSM editor: JOSM,"  - see "Export" menu
#  -----
#