Cross-Platform ‘zip’ Compression
install.packages("zip")library(zip)zip() creates a new ZIP archive. (It overwrites the
output file if it exists.) Simply supply all directories and files that
you want to include in the archive.
It makes sense to change to the top-level directory of the files before archiving them, so that the files are stored using a relative path name.
zip("sources.zip", c("R", "src"))
file.info("sources.zip")
#> size isdir mode mtime ctime
#> sources.zip 604675 FALSE 644 2021-05-30 22:54:38 2021-05-30 22:54:38
#> atime uid gid uname grname
#> sources.zip 2021-05-30 22:53:51 501 20 gaborcsardi staffDirectories are added recursively by default.
zip_append() is similar to zip(), but it
appends files to an existing ZIP archive.
zip_list() lists files in a ZIP archive. It returns a
data frame:
zip_list("sources.zip")
#> filename compressed_size
#> 1 R/ 0
#> 2 R/assertions.R 125
#> 3 R/process.R 1755
#> 4 R/utils.R 941
#> 5 R/zip.R 3148
#> 6 src/ 0
#> 7 src/init.c 335
#> 8 src/init.o 1599
#> 9 src/install.libs.R 272
#> 10 src/Makevars 199
#> 11 src/Makevars.win 273
#> 12 src/miniz.c 55180
#> 13 src/miniz.h 18113
#> 14 src/miniz.o 132730
#> 15 src/rzip.c 2123
#> 16 src/rzip.o 8003
#> 17 src/tools/ 0
#> 18 src/tools/cmdunzip 51424
#> 19 src/tools/cmdunzip.c 590
#> 20 src/tools/cmdunzip.dSYM/ 0
#> 21 src/tools/cmdunzip.dSYM/Contents/ 0
#> 22 src/tools/cmdunzip.dSYM/Contents/Info.plist 304
#> 23 src/tools/cmdunzip.dSYM/Contents/Resources/ 0
#> 24 src/tools/cmdunzip.dSYM/Contents/Resources/DWARF/ 0
#> 25 src/tools/cmdunzip.dSYM/Contents/Resources/DWARF/cmdunzip 97049
#> 26 src/tools/cmdzip 51879
#> 27 src/tools/cmdzip.c 1066
#> 28 src/tools/cmdzip.dSYM/ 0
#> 29 src/tools/cmdzip.dSYM/Contents/ 0
#> 30 src/tools/cmdzip.dSYM/Contents/Info.plist 303
#> 31 src/tools/cmdzip.dSYM/Contents/Resources/ 0
#> 32 src/tools/cmdzip.dSYM/Contents/Resources/DWARF/ 0
#> 33 src/tools/cmdzip.dSYM/Contents/Resources/DWARF/cmdzip 97654
#> 34 src/unixutils.c 724
#> 35 src/unixutils.o 4725
#> 36 src/winutils.c 1931
#> 37 src/zip.c 2726
#> 38 src/zip.h 808
#> 39 src/zip.o 11779
#> 40 src/zip.so 51765
#> uncompressed_size timestamp permissions crc32 offset
#> 1 0 2021-04-19 20:08:24 755 00000000 0
#> 2 296 2019-02-22 22:11:46 644 82c65ed5 32
#> 3 6479 2020-08-10 15:05:56 644 818cbd3a 217
#> 4 3150 2020-07-10 11:33:36 644 75732ae5 2029
#> 5 9920 2021-04-19 20:08:24 644 385b510f 3025
#> 6 0 2021-05-30 20:54:36 755 00000000 6226
#> 7 762 2019-02-22 22:11:46 644 d6b21cec 6260
#> 8 3844 2021-02-09 14:27:58 644 91bd3ca8 6651
#> 9 587 2020-07-10 10:20:48 644 4f80df1a 8306
#> 10 525 2020-07-15 13:40:24 644 c8789e48 8642
#> 11 700 2020-08-10 15:05:56 644 373232f9 8899
#> 12 314758 2021-01-30 12:23:14 644 7b72d73e 9234
#> 13 66863 2019-02-24 22:55:36 644 5e7da5e7 64471
#> 14 354268 2021-02-09 14:28:02 644 c2ac4b13 82641
#> 15 6703 2021-04-19 20:08:24 644 e84a5170 215428
#> 16 18996 2021-05-30 20:54:36 644 132b14e7 217607
#> 17 0 2021-05-30 20:54:36 755 00000000 225666
#> 18 116472 2021-05-30 20:54:36 755 1045b444 225706
#> 19 1343 2020-08-10 15:11:22 644 1a6e34f1 277194
#> 20 0 2021-02-09 14:27:58 755 00000000 277850
#> 21 0 2021-02-09 14:27:58 755 00000000 277904
#> 22 637 2021-05-30 20:54:36 644 294928f0 277967
#> 23 0 2021-02-09 14:27:58 755 00000000 278360
#> 24 0 2021-02-09 14:27:58 755 00000000 278433
#> 25 281883 2021-05-30 20:54:36 644 28d71d4c 278512
#> 26 116640 2021-05-30 20:54:34 755 dea8616e 375664
#> 27 2909 2020-08-10 15:11:42 644 bfb4d8f3 427605
#> 28 0 2021-02-09 14:27:52 755 00000000 428735
#> 29 0 2021-02-09 14:27:52 755 00000000 428787
#> 30 635 2021-05-30 20:54:34 644 c3375fb9 428848
#> 31 0 2021-02-09 14:27:52 755 00000000 429238
#> 32 0 2021-02-09 14:27:52 755 00000000 429309
#> 33 283475 2021-05-30 20:54:34 644 1150b348 429386
#> 34 1944 2020-07-15 13:40:24 644 d38da4b6 527139
#> 35 10824 2021-02-09 14:28:04 644 835d78fa 527924
#> 36 6831 2021-02-09 14:58:56 644 3eadc2a2 532710
#> 37 11247 2021-02-09 14:58:56 644 c8051811 534701
#> 38 2349 2021-01-30 12:23:14 644 92f80ead 537482
#> 39 28120 2021-05-30 20:54:36 644 13123666 538345
#> 40 122240 2021-05-30 20:54:36 755 58e052a1 550179unzip() uncompresses a ZIP archive:
exdir <- tempfile()
unzip("sources.zip", exdir = exdir)
dir(exdir)
#> [1] "R" "src"You can use the zip_process() and
unzip_process() functions to create background zip / unzip
processes. These processes were implemented on top of the
processx::process class, so they are pollable.
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