51 Commits

Author	SHA1	Message	Date
Alan Orth	bd8943f36a	csv_metadata_quality/app.py: Don't crash if fields are missing ... We don't need to crash if someone feeds us a CSV file that is miss- ing commont DSpace fields like title, type, and subject.	2021-03-21 19:47:29 +02:00
Alan Orth	cfe09f7126	Add SPDX short license identifier to all Python files ... See: https://spdx.github.io/spdx-spec/appendix-V-using-SPDX-short-identifiers-in-source-files/	2021-03-19 16:04:40 +02:00
Alan Orth	898bb412c3	Add checks and unsafe fixes for mojibake ... This detects whether text has likely been encoded in one encoding and decoded in another, perhaps multiple times. This often results in display of "mojibake" characters. For example, a file encoded in UTF-8 is opened as CP-1252 (Windows Latin codepage) in Microsoft Excel, and saved again as UTF-8. You will see strings like this in the resulting file: - CIAT Publicaçao - CIAT Publicación The correct version of these in UTF-8 would be: - CIAT Publicaçao - CIAT Publicación I use a code snippet from Martijn Pieters on StackOverflow to de- tect whether a string is "weird" as determined by the excellent "fixes text for you" (ftfy) Python library, then check if a weird string encodes as CP-1252 or not. If so, I can try to fix it. See: https://stackoverflow.com/questions/29071995/identify-garbage-unicode-string-using-python	2021-03-19 10:22:21 +02:00
Alan Orth	9f2dc0a0f5	Add support for detecting duplicate items ... This uses the title, type, and date issued as a sort of "key" when determining if an item already exists in the data set.	2021-03-17 09:53:07 +02:00
Alan Orth	330a7b7b9c	Don't unnecessarily rewrite DataFrames for checks ... By using df[column] = df[column].apply(check...) we were re-writing the DataFrame every time we returned from a check. We don't actuall y need to return a value at all, as the point of checks is to print a warning to the screen. In Python a "return" statement without a v ariable returns None. I haven't measured the impact of this, but I assume it will mean we are faster and use less memory.	2021-03-16 16:04:19 +02:00
Alan Orth	10612cf891	Remove checks for invalid multi-value separators ... Now that I no longer treat the fix for these as "unsafe" I don't a ctually need to check for them—I can just fix them when I see them.	2021-03-14 21:01:21 +02:00
Alan Orth	c9c277f8df	csv_metadata_quality/app.py: Update help text ... Use DCTERMS fields where possible.	2021-03-14 10:52:58 +02:00
Alan Orth	1008acf35e	Always fix invalid multi-value separators ... This is no longer class-ified as "unsafe" as I have yet to see a case where this was intentional, and it always causes issues when you import the data in a DSpace repository.	2021-03-13 12:59:45 +02:00
Alan Orth	6e4b0e5c1b	Add validation of SPDX license identifiers ... Currently this only checks the dcterms.license field and the result will only be a warning.	2021-03-11 10:33:16 +02:00
Alan Orth	dd2cfae047	csv_metadata_quality/app.py: Match dcterms.issued for dates ... We used to only check fields that had "date" in their name because we were using DSpace's default dc.date.* fields. Now we are using dcterms.issued so I will add that one as well.	2021-02-28 15:11:06 +02:00
Alan Orth	a7fc5a246c	Colorize output ... Messages will be colorized: - Red for errors - Yellow for warnings or information - Green for fixes	2021-02-21 13:01:25 +02:00
Alan Orth	0dc66c5c4e	Expand check/fix for multi-value separators ... I just came across some metadata that had unnecessary multi-value separators at the end of a field, causing a blank value to be used. For example: "Kenya||Tanzania||"	2021-01-03 15:30:03 +02:00
Alan Orth	28b5996aa6	Output field name for more fixes and checks ... This helps identify which field has the error.	2020-01-16 12:35:11 +02:00
Alan Orth	87181bc7b8	Run black, isort, and flake8.	2020-01-15 11:41:31 +02:00
Alan Orth	49e3543878	Add Unicode normalization ... This will check all strings for un-normalized Unicode characters. Normalization is done using NFC. This includes tests and updated sample data (data/test.csv). See: https://withblue.ink/2019/03/11/why-you-need-to-normalize-unicode-strings.html	2020-01-15 11:37:54 +02:00
Alan Orth	8435ee242d	Experimental language detection using langid ... Works decenty well assuming the title, abstract, and citation fields are an accurate representation of the language as identified by the language field. Handles ISO 639-1 (alpha 2) and ISO 639-3 (alpha 3) values seamlessly. This includes updated pipenv environment, test data, pytest tests for both correct and incorrect ISO 639-1 and ISO 639-3 languages, and a new command line option "-e".	2019-09-26 13:46:32 +03:00
Alan Orth	f304ca6a33	csv_metadata_quality/app.py: Use simpler column iteration ... I don't know where I got the other one...	2019-09-21 17:19:39 +03:00
Alan Orth	280a99c8a8	Sort imports with isort ... See: https://sourcery.ai/blog/python-best-practices/	2019-08-29 01:15:04 +03:00
Alan Orth	d97dcd19db	Format with black	2019-08-29 01:10:39 +03:00
Alan Orth	81190d56bb	Add fix for missing space after commas ... This happens in names very often, for example in the contributor and citation fields. I will limit this to those fields for now and hide this fix behind the "unsafe fixes" option until I test it more.	2019-08-28 00:05:52 +03:00
Alan Orth	113e7cd8b6	csv_metadata_quality/app.py: Add ability to skip fields ... The user may want to skip the checking and fixing of certain fields in the input file.	2019-08-27 00:10:07 +03:00
Alan Orth	ed5612fbcf	Add column name to output in date checks ... This makes it easier to understand where the error is in case a CSV has multiple date fields, for example: Missing date (dc.date.issued). Missing date (dc.date.issued[]). If you have 126 items and you get 126 "Missing date" messages then it's likely that 100 of the items have dates in one field, and the others have dates in other field.	2019-08-21 15:31:12 +03:00
Alan Orth	9ce7dc6716	Add check for uncommon filenames ... Generally we want people to upload documents in accessible formats like PDF, Word, Excel, and PowerPoint. This check warns if a file is using an uncommon extension.	2019-08-10 23:41:16 +03:00
Alan Orth	62fea95087	Improve suspicious character detection ... Now it will print just the part of the metadata value that contains the suspicious character (up to 80 characters, so we don't make the line break on terminals that use 80 character width by default). Also, print the name of the field in which the metadata value is so that it is easier for the user to locate.	2019-08-09 01:25:40 +03:00
Alan Orth	8772bdec51	csv_metadata_quality/app.py: Explicitly exit with success	2019-08-04 09:10:37 +03:00
Alan Orth	6d4ecd75aa	csv_metadata_quality/app.py: Close files before exit	2019-08-04 09:10:19 +03:00
Alan Orth	f4e7fd73f5	csv_metadata_quality/app.py: Handle Ctrl-C ... Instead of printing an ugly two-page stack trace.	2019-08-03 21:11:57 +03:00
Alan Orth	0561300ebe	Add option to print version with --version or -V ... I guess `-v` is more commonly used for "verbose" so I will use the short option of `-V` for version.	2019-08-02 00:09:54 +03:00
Alan Orth	bf876a046a	Rework AGROVOC validation ... AGROVOC validation is now disabled by default, but can be enabled on a field-by-field basis. For example, countries and regions are also present in AGROVOC. Fields with these values can be enabled using the new `--agrovoc-fields` option. I reworked the script output to show the field name when printing an invalid term so that the user knows in which field the term is.	2019-08-01 23:51:58 +03:00
Alan Orth	9100efdf50	Re-work as a proper standalone Python package ... Add a setup.py so that installation is easier and a standalone CLI script called csv-metadata-quality is provided. Now the user only needs to run this from a virtual environment inside the project directory: $ pip install . Eventually I could publish this on PyPi when I settle on a more appropriate package name. See: https://packaging.python.org/tutorials/packaging-projects/ See: https://chriswarrick.com/blog/2014/09/15/python-apps-the-right-way-entry_points-and-scripts/	2019-07-31 17:34:36 +03:00
Alan Orth	40d5f7d81b	Add support for removing newlines ... This was tricky because of the nature of newlines. In actuality we are removing Unix line feeds here (U+000A) because Windows carriage returns are actually already removed by the string stripping in the whitespace fix. Creating the test case in Vim was difficult because I couldn't fig- ure out how to manually enter a line feed character. In the end I used a search and replace on a known pattern like "ALAN", replacing it with \r. Neither entering the Unicode code point (U+000A) direc- tly or typing an "Enter" character after ^V worked. Grrr.	2019-07-30 20:05:12 +03:00
Alan Orth	1f65a28307	Add support for validating subjects against AGROVOC ... Checks values in the dc.subject or dcterms.subject field against the AGROVOC REST API hosted by FAO. Code borrowed from agrovoc-lookup.py. See: http://agrovoc.uniroma2.it/agrovoc/agrovoc/en/ See: https://github.com/ilri/DSpace/blob/5_x-prod/agrovoc-lookup.py	2019-07-30 00:30:31 +03:00
Alan Orth	a36454a3ac	Add support for validating languages ... Will validate against ISO 639-2 or ISO 639-3 depending on how long the language field is. Otherwise will return that the language is invalid. Does not currently have any support for generic values like "Other".	2019-07-29 18:59:42 +03:00
Alan Orth	1e444cf040	Add fix for duplicate metadata values	2019-07-29 18:05:03 +03:00
Alan Orth	fa4fa3491b	Add check for "suspicious" characters ... These standalone characters often indicate issues with encoding or copy/paste in languages with accents like French and Spanish. For example: foreˆt should be forêt. It is not possible to fix these issues automatically, but this will print a warning so you can notify the owner of the data.	2019-07-29 17:08:49 +03:00
Alan Orth	8047a57cc5	Add support for fixing "unnecessary" Unicode ... These are things like non-breaking spaces, "replacement" characters, etc that add nothing to the metadata and often cause errors during parsing or displaying in a UI.	2019-07-29 16:38:10 +03:00
Alan Orth	d73f7b54b1	csv_metadata_quality/app.py: Improve comments	2019-07-29 16:24:35 +03:00
Alan Orth	7b5db1f5d9	csv_metadata_quality/app.py: Remove erroneous comment	2019-07-29 16:15:25 +03:00
Alan Orth	40e77db713	Add "unsafe fixes" runtime option ... In this case it fixes occurences of invalid multi-value separators. DSpace uses "||" to separate multiple values in one field, but our editors sometimes give us files with mistakes like "|". We can fix these to be correct multi-value separators if we are sure that the metadata is not actually using "|" for some legitimate purpose.	2019-07-28 22:53:39 +03:00
Alan Orth	a93b5b31c5	Add support for command line arguments ... Currently only supports specifying input and output files with -i and -o. Eventually I'll add more options like dry run, debug, and maybe things like forcing unsafe fixes.	2019-07-28 20:31:57 +03:00
Alan Orth	aadb3117eb	csv_metadata_quality/app.py: Remove unused test input files	2019-07-28 17:45:05 +03:00
Alan Orth	e88d35ace3	csv_metadata_quality/app.py: Use regex in column match ... Check for a column that has "issn" or "isbn" in the name rather than by its explicit name, as the column is dc.identifier.issn now, but will be cg.issn in the future if CG Core v2 happens.	2019-07-28 17:27:20 +03:00
Alan Orth	196bb434fa	Add date validation ... I'm only concerned with validating issue dates here. In DSpace they are generally always YYYY, YYY-MM, or YYYY-MM-DD (though in theory they could be any valid ISO8601 format). This also checks for cases where the date is missing and where the metadata has specified multiple dates like "1990||1991", as this is valid, but there is no practical value for it in our system.	2019-07-28 16:11:36 +03:00
Alan Orth	e2bb2d4df9	Main function should be "main()"	2019-07-27 23:09:16 +03:00
Alan Orth	c47c064a13	Make output less debuggy	2019-07-27 09:21:13 +03:00
Alan Orth	18f26c343d	csv_metadata_quality/app.py: Fix path to test.csv	2019-07-27 00:25:30 +03:00
Alan Orth	84c3b17678	csv_metadata_quality/app.py: Add comment	2019-07-26 23:49:13 +03:00
Alan Orth	aaf3537ba4	Add check for invalid multi-value separators	2019-07-26 23:48:24 +03:00
Alan Orth	dfd961d720	Bring test.csv into project	2019-07-26 23:14:37 +03:00
Alan Orth	e160b17fb0	Add ISSN and ISBN checks using python-stdnum	2019-07-26 23:14:10 +03:00