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+# Shaarli, the personal, minimalist, super-fast, no-database delicious clone.
+#
+# Makefile for PHP code analysis & testing
+#
+# Prerequisites:
+# - install Composer, either:
+#   - from your distro's package manager;
+#   - from the official website (https://getcomposer.org/download/);
+# - install/update test dependencies:
+#   $ composer install  # 1st setup
+#   $ composer update
+BIN = vendor/bin
+PHP_SOURCE = index.php
+MESS_DETECTOR_RULES = cleancode,codesize,controversial,design,naming,unusedcode
+
+all: static_analysis_summary
+
+##
+# Concise status of the project
+#
+# These targets are non-blocking: || exit 0
+##
+static_analysis_summary: code_sniffer_source copy_paste mess_detector_summary
+
+##
+# PHP_CodeSniffer
+#
+# Detects PHP syntax errors
+#
+# Documentation (usage, output formatting):
+# - http://pear.php.net/manual/en/package.php.php-codesniffer.usage.php
+# - http://pear.php.net/manual/en/package.php.php-codesniffer.reporting.php
+##
+code_sniffer: code_sniffer_full
+
+# - errors by Git author
+code_sniffer_blame:
+        @$(BIN)/phpcs $(PHP_SOURCE) --report-gitblame
+
+# - all errors/warnings
+code_sniffer_full:
+        @$(BIN)/phpcs $(PHP_SOURCE) --report-full --report-width=200
+
+# - errors grouped by kind
+code_sniffer_source:
+        @$(BIN)/phpcs $(PHP_SOURCE) --report-source || exit 0
+
+##
+# PHP Copy/Paste Detector
+#
+# Detects code redundancy
+#
+# Documentation: https://github.com/sebastianbergmann/phpcpd
+##
+copy_paste:
+        @echo "-----------------------"
+        @echo "PHP COPY/PASTE DETECTOR"
+        @echo "-----------------------"
+        @$(BIN)/phpcpd $(PHP_SOURCE) || exit 0
+        @echo
+
+##
+# PHP Mess Detector
+#
+# Detects PHP syntax errors, sorted by category
+#
+# Rules documentation: http://phpmd.org/rules/index.html
+#
+mess_title:
+        @echo "-----------------"
+        @echo "PHP MESS DETECTOR"
+        @echo "-----------------"
+
+# - all warnings
+mess_detector: mess_title
+        @$(BIN)/phpmd $(PHP_SOURCE) text $(MESS_DETECTOR_RULES) | sed 's_.*\/__'
+
+# - all warnings
+#   the generated HTML contains links to PHPMD's documentation
+mess_detector_html:
+        @$(BIN)/phpmd $(PHP_SOURCE) html $(MESS_DETECTOR_RULES) \
+        --reportfile phpmd.html || exit 0
+
+# - warnings grouped by message, sorted by descending frequency order
+mess_detector_grouped: mess_title
+        @$(BIN)/phpmd $(PHP_SOURCE) text $(MESS_DETECTOR_RULES) \
+        | cut -f 2 | sort | uniq -c | sort -nr
+
+# - summary: number of warnings by rule set
+mess_detector_summary: mess_title
+        @for rule in $$(echo $(MESS_DETECTOR_RULES) | tr ',' ' '); do \
+                warnings=$$($(BIN)/phpmd $(PHP_SOURCE) text $$rule | wc -l); \
+                printf "$$warnings\t$$rule\n"; \
+        done;