Adjust phan script to run sub-projects

Rather than duplicating the phan and postprocess-phan.php scripts
into extensions, this allows passing the path to the extension
(or skin, or whichever) to the phan script and it will run the analysis
for that project.

Individual projects will need a tests/phan/config.php file that defines
how the analysis will run in their project.

Bug: T153040
Change-Id: I58ad44f6a8769088e87d5d6cf1079e633c082f88

diff --git a/tests/phan/bin/phan b/tests/phan/bin/phan
index bed8c69..5d42cf5 100755 (executable)
--- a/tests/phan/bin/phan
+++ b/tests/phan/bin/phan
@@ -1,4 +1,11 @@
-#!/bin/sh
+#!/bin/bash
+
+# mediawiki-vagrant installs dont have realpath by default
+if ! which realpath > /dev/null; then
+       realpath() {
+               php -r "echo realpath('$*');"
+       }
+fi
 
 # Note that this isn't loaded in via composer because then composer can
 # only be run with php7.0
@@ -8,35 +15,57 @@ if [ ! -f "$PHAN" ]; then
        exit 1
 fi
 
-cd "$(dirname "$0")"
+if [ -z "$MW_INSTALL_PATH" ]; then
+       # Figure out where mediawiki is based on the location of this script
+       pushd "$(dirname "$0")" > /dev/null
+       export MW_INSTALL_PATH="$(git rev-parse --show-toplevel)"
+       popd >/dev/null
+fi
+
+# If the first argument doesn't start with a -, then it's a path
+# to another project (extension, skin, etc.) to analyze
+if [[ "$1" != "-"* ]]; then
+       cd $1
+       shift
+else
+       cd "$(dirname "$0")"
+fi
 
 # Root directory of project
 export ROOT="$(git rev-parse --show-toplevel)"
 
-# Phan's issues directory
-export ISSUES="${ROOT}/tests/phan/issues"
-
 # Go to the root of this git repo
 cd "$ROOT"
 
+export CONFIG_FILE="$ROOT/tests/phan/config.php"
+if [ ! -f "$CONFIG_FILE" ]; then
+       echo "Could not find a phan config file to apply in"
+       echo "$CONFIG_FILE"
+       exit 1
+fi
+
+# Phan's issues directory
+export ISSUES="${ROOT}/tests/phan/issues"
+mkdir -p "$ISSUES"
+
 # Get the current hash of HEAD
 export REV="$(git rev-parse HEAD)"
 
 # Destination for issues found
 export RUN="${ISSUES}/issues-${REV}"
 
+
 # Run the analysis, emitting output to the
 # issues file.
 php7.0 $PHAN \
        --project-root-directory "$ROOT" \
-       --config-file "$ROOT/tests/phan/config.php" \
-       --output "$RUN" \
-       "${@}"
-
+       --config-file "$CONFIG_FILE" \
+       --output "php://stdout" \
+       "${@}" \
+       | php "$MW_INSTALL_PATH/tests/phan/bin/postprocess-phan.php" "${@}" \
+       > $RUN
 
-cat "${RUN}" | php "$ROOT/tests/phan/bin/postprocess-phan.php" "${@}" > /tmp/phan.$$
 EXIT_CODE="$?"
-mv /tmp/phan.$$ "${RUN}"
 
 # Re-link the latest file
 rm -f "${ISSUES}/latest"