3 releases (breaking)
0.3.0 | Mar 2, 2020 |
---|---|
0.2.0 | Mar 2, 2020 |
0.1.0 | Mar 1, 2020 |
#25 in #csv-tsv
23 downloads per month
13KB
239 lines
csv-exec runs a command for each line of a CSV file. The command's arguments are replaced by the value of the CSV columns. The output is written in a new column.
$ cat test.csv
Id,Dir
24,example.com/a
68,example.com/b
$ csv-exec 'echo $2/$1' <test.csv
Id,Dir,Result
24,example.com/a,example.com/a/24
68,example.com/b,example.com/b/68
The regex that parses the arguments can be changed:
$ csv-exec 'echo €2/€1' --arg-regex '€([0-9]+)' <test.csv
Id,Dir,Result
24,example.com/a,example.com/a/24
68,example.com/b,example.com/b/68
The help, generated by clap:
$ csv-exec -h
csv-exec 0.3.0
niladic <git@nil.choron.cc>
Execute a command on each record of a CSV.
USAGE:
csv-exec [FLAGS] [OPTIONS] <COMMAND>
FLAGS:
-h, --help Prints help information
-n, --no-headers Do not read the first line as a header line
-V, --version Prints version information
OPTIONS:
--arg-regex <REGEX> Regex used to parse the column position in the command args.
Position begins at 1.
Only the first capturing group is used.
Syntax: https://docs.rs/regex/1.3.4/regex/index.html#syntax
[default: \$([0-9]+)]
-d, --delimiter <CHAR> CSV delimiter (\t for tabs) [default: ,]
-i, --input <FILE> Input CSV file [stdin by default]
--new-column-name <STRING> Name of the new column which contains the results [default: Result]
--out-delimiter <CHAR> Output CSV delimiter, if different from delimiter (\t for tabs)
-o, --output <FILE> Output CSV [stdout by default]
--quote <CHAR> CSV quote [default: "]
ARGS:
<COMMAND> The command to execute
Dependencies
~4–5.5MB
~83K SLoC