diff options
| -rw-r--r-- | Makefile.am.coverage | 4 | ||||
| -rwxr-xr-x | trim-lcov.py | 53 |
2 files changed, 56 insertions, 1 deletions
diff --git a/Makefile.am.coverage b/Makefile.am.coverage index fb97747..dc3b9c8 100644 --- a/Makefile.am.coverage +++ b/Makefile.am.coverage @@ -1,6 +1,8 @@ # Coverage targets +EXTRA_DIST = trim-lcov.py + .PHONY: clean-gcno clean-gcda \ coverage-html generate-coverage-html clean-coverage-html \ coverage-gcovr generate-coverage-gcovr clean-coverage-gcovr @@ -23,7 +25,7 @@ coverage-html: clean-gcda generate-coverage-html: @echo Collecting coverage data - $(LCOV) --directory $(top_builddir) --capture --output-file coverage.info --no-checksum --compat-libtool + $(LCOV) --directory $(top_builddir) --capture --no-checksum --compat-libtool | $(top_srcdir)/trim-lcov.py > coverage.info LANG=C $(GENHTML) --prefix $(top_builddir) --output-directory coveragereport --title "Code Coverage" --legend --show-details coverage.info clean-coverage-html: clean-gcda diff --git a/trim-lcov.py b/trim-lcov.py new file mode 100755 index 0000000..c1709c3 --- /dev/null +++ b/trim-lcov.py @@ -0,0 +1,53 @@ +#!/usr/bin/python + +# This script removes branch and/or line coverage data for lines that +# contain a particular substring. +# +# In the interest of "fairness" it removes all branch or coverage data +# when a match is found -- not just negative data. It is therefore +# likely that running this script will actually reduce the total number +# of lines and branches that are marked as covered (in absolute terms). +# +# This script intentionally avoids checking for errors. Any exceptions +# will trigger make to fail. +# +# Author: Ryan Lortie <desrt@desrt.ca> + +import sys + +line_suppress = ['g_assert_not_reached'] +branch_suppress = ['g_assert', 'g_return_if_fail', 'g_return_val_if_fail', 'G_DEFINE_TYPE'] + +def check_suppress(suppressions, source, data): + line, _, rest = data.partition(',') + line = int(line) - 1 + + assert line < len(source) + + for suppression in suppressions: + if suppression in source[line]: + return True + + return False + +source = [] +for line in sys.stdin: + line = line[:-1] + + keyword, _, rest = line.partition(':') + + # Source file + if keyword == 'SF': + source = file(rest).readlines() + + # Branch coverage data + elif keyword == 'BRDA': + if check_suppress(branch_suppress, source, rest): + continue + + # Line coverage data + elif keyword == 'DA': + if check_suppress(line_suppress, source, rest): + continue + + print line |