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authorXavier Del Campo Romero <xavi92@disroot.org>2025-10-06 23:02:51 +0200
committerXavier Del Campo Romero <xavi92@disroot.org>2025-10-08 02:03:05 +0200
commit00dd37604d50cbf3fb27ec0631b4d4b6d2ee893a (patch)
tree81f9546b168078aa9bf54d4298aa76e99bb229af /fdzipstream
parent4ab3ee681607f0cc75cf56e4fcbeae85594bb630 (diff)
Implement directory download as ZIP
Thanks to the fdzipstream library [1] and zlib [2], it is possible to generate ZIP files on-the-fly, therefore requiring no extra disk space usage and only a small amount of memory. Unfortunately, as of the time of this writing fdzipstream is not packaged by any distributions yet [3], so it had to be imported as a git submodule as a workaround. While libarchive [4] could be an interesting alternative, writing ZIP files is only supported by very recent versions (>= 3.8.0), which are still not packaged by many distributions [5], either. Moreover, libarchive is a package with several dependencies other than zlib and is significantly larger compared to fdzipstreams, so fdzipstreams was ultimately considered a better fit for this purpose. [1]: https://github.com/CTrabant/fdzipstream.git [2]: http://zlib.net/ [3]: https://repology.org/projects/?search=fdzipstream [4]: https://www.libarchive.org/ [5]: https://repology.org/project/libarchive/versions
Diffstat (limited to 'fdzipstream')
-rw-r--r--fdzipstream/CMakeLists.txt6
-rw-r--r--fdzipstream/Makefile21
2 files changed, 27 insertions, 0 deletions
diff --git a/fdzipstream/CMakeLists.txt b/fdzipstream/CMakeLists.txt
new file mode 100644
index 0000000..101a117
--- /dev/null
+++ b/fdzipstream/CMakeLists.txt
@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.13)
+project(fdzipstream LANGUAGES C)
+find_package(ZLIB REQUIRED)
+add_library(${PROJECT_NAME} fdzipstream/fdzipstream.c)
+target_include_directories(${PROJECT_NAME} PUBLIC fdzipstream)
+target_link_libraries(${PROJECT_NAME} PUBLIC ${ZLIB_LIBRARIES})
diff --git a/fdzipstream/Makefile b/fdzipstream/Makefile
new file mode 100644
index 0000000..7e81636
--- /dev/null
+++ b/fdzipstream/Makefile
@@ -0,0 +1,21 @@
+.POSIX:
+
+PROJECT = libfdzipstream.a
+CFLAGS = -O1 -g -D_POSIX_C_SOURCE=200809L
+
+OBJECTS = \
+ fdzipstream.o
+
+all: $(PROJECT)
+
+clean:
+ rm -f $(OBJECTS)
+
+distclean: clean
+ rm -f $(PROJECT)
+
+$(PROJECT): $(OBJECTS)
+ $(AR) $(ARFLAGS) $@ $(OBJECTS)
+
+%.o: fdzipstream/%.c
+ $(CC) $(CFLAGS) -c $< -o $@