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Let gmtread deal with ogr zipped files (like *.shp.zip) #1236

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Aug 27, 2023
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Let gmtread deal with ogr zipped files (like *.shp.zip) #1236

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14 changes: 10 additions & 4 deletions src/gmtreadwrite.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -128,15 +128,17 @@ function gmtread(_fname::String; kwargs...)
if (opt_T == "")
((opt_T = guess_T_from_ext(fname)) == "") && error("Must select one input data type (grid, image, dataset, cmap or ps)")
(opt_T == " -Tg" && haskey(d, :ignore_grd)) && return nothing # contourf uses this
if (opt_T == " -To" && fname[1] == '@') # Because GMT ogrread does not know the '@' mechanism.
if (opt_T == " -To" && fname[1] == '@') # Because GMT ogrread does not know the '@' mechanism.
fname = joinpath(readlines(`gmt --show-userdir`)[1], "cache", fname[2:end])
!isfile(fname) && error("File $fname does not exist in cache.")
elseif (opt_T == " -Toz") # Means we got a zipped ogr file
fname, opt_T = "/vsizip/" * fname, " -To"
end
else
opt_T = opt_T[1:4] # Remove whatever was given as argument to type kwarg
opt_T = opt_T[1:4] # Remove whatever was given as argument to type kwarg
end

if (opt_T == " -Ti" || opt_T == " -Tg") # See if we have a mem layout request
if (opt_T == " -Ti" || opt_T == " -Tg") # See if we have a mem layout request
if ((val = find_in_dict(d, [:layout :mem_layout])[1]) !== nothing)
(opt_T == " -Ti" && startswith(string(val)::String, "TRB")) && return gdaltranslate(fname)
# MUST TAKE SOME ACTION HERE. FOR IMAGES I THINK ONLY THE "I" FOR IMAGES.JL IS REALLY POSSIBLE
Expand Down Expand Up @@ -270,7 +272,11 @@ end
# ---------------------------------------------------------------------------------
function guess_T_from_ext(fname::String)::String
# Guess the -T option from a couple of known extensions
ext = splitext(fname)[2]
fn, ext = splitext(fname)
if (ext == ".zip") # Accept ogr zipped files, e.g., *.shp.zip
((out = guess_T_from_ext(fn)) == " -To") && return " -Toz"
end

(length(ext) > 8 || occursin("?", ext)) && return (occursin("?", ext)) ? " -Tg" : "" # A SUBDATASET encoded fname?
ext = lowercase(ext[2:end])
((ext == "jp2" || ext == "tif" || ext == "tiff") && (!isfile(fname) && !startswith(fname, "/vsi") &&
Expand Down
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